WO2020258387A1 - 一种淀粉基多通道气流单元及其制备方法和应用 - Google Patents

一种淀粉基多通道气流单元及其制备方法和应用 Download PDF

Info

Publication number
WO2020258387A1
WO2020258387A1 PCT/CN2019/095700 CN2019095700W WO2020258387A1 WO 2020258387 A1 WO2020258387 A1 WO 2020258387A1 CN 2019095700 W CN2019095700 W CN 2019095700W WO 2020258387 A1 WO2020258387 A1 WO 2020258387A1
Authority
WO
WIPO (PCT)
Prior art keywords
starch
temperature
zone
preparation
temperature control
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2019/095700
Other languages
English (en)
French (fr)
Inventor
李峰
胡静
赵瑞峰
陈东鄂
李真福
刘义波
刘熙
李焕威
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
China Tobacco Guangdong Industrial Co Ltd
Original Assignee
China Tobacco Guangdong Industrial Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by China Tobacco Guangdong Industrial Co Ltd filed Critical China Tobacco Guangdong Industrial Co Ltd
Priority to JP2020573414A priority Critical patent/JP7108058B2/ja
Priority to MYPI2020007213A priority patent/MY209357A/en
Priority to UAA202100087A priority patent/UA124916C2/uk
Priority to KR1020217000878A priority patent/KR102671164B1/ko
Priority to US17/259,562 priority patent/US11911948B2/en
Priority to EP19934341.9A priority patent/EP3800032B1/en
Publication of WO2020258387A1 publication Critical patent/WO2020258387A1/zh
Priority to PH12021550149A priority patent/PH12021550149A1/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/09—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
    • B29C48/11—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels comprising two or more partially or fully enclosed cavities, e.g. honeycomb-shaped
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24D—CIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES OF CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
    • A24D3/00—Tobacco smoke filters, e.g. filter tips or filtering inserts; Filters specially adapted for simulated smoking devices; Mouthpieces of cigars or cigarettes
    • A24D3/02—Manufacture of tobacco smoke filters
    • A24D3/0229—Filter rod forming processes
    • A24D3/0237—Filter rod forming processes by extrusion
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24D—CIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES OF CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
    • A24D3/00—Tobacco smoke filters, e.g. filter tips or filtering inserts; Filters specially adapted for simulated smoking devices; Mouthpieces of cigars or cigarettes
    • A24D3/02—Manufacture of tobacco smoke filters
    • A24D3/025—Final operations, i.e. after the filter rod forming process
    • A24D3/0254—Cutting means
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24D—CIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES OF CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
    • A24D3/00—Tobacco smoke filters, e.g. filter tips or filtering inserts; Filters specially adapted for simulated smoking devices; Mouthpieces of cigars or cigarettes
    • A24D3/02—Manufacture of tobacco smoke filters
    • A24D3/025—Final operations, i.e. after the filter rod forming process
    • A24D3/0266—Rolling means
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24D—CIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES OF CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
    • A24D3/00—Tobacco smoke filters, e.g. filter tips or filtering inserts; Filters specially adapted for simulated smoking devices; Mouthpieces of cigars or cigarettes
    • A24D3/02—Manufacture of tobacco smoke filters
    • A24D3/0275—Manufacture of tobacco smoke filters for filters with special features
    • A24D3/0287—Manufacture of tobacco smoke filters for filters with special features for composite filters
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24D—CIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES OF CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
    • A24D3/00—Tobacco smoke filters, e.g. filter tips or filtering inserts; Filters specially adapted for simulated smoking devices; Mouthpieces of cigars or cigarettes
    • A24D3/04—Tobacco smoke filters characterised by their shape or structure
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24D—CIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES OF CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
    • A24D3/00—Tobacco smoke filters, e.g. filter tips or filtering inserts; Filters specially adapted for simulated smoking devices; Mouthpieces of cigars or cigarettes
    • A24D3/06—Use of materials for tobacco smoke filters
    • A24D3/067—Use of materials for tobacco smoke filters characterised by functional properties
    • A24D3/068—Biodegradable or disintegrable
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24D—CIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES OF CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
    • A24D3/00—Tobacco smoke filters, e.g. filter tips or filtering inserts; Filters specially adapted for simulated smoking devices; Mouthpieces of cigars or cigarettes
    • A24D3/06—Use of materials for tobacco smoke filters
    • A24D3/08—Use of materials for tobacco smoke filters of organic materials as carrier or major constituent
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24D—CIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES OF CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
    • A24D3/00—Tobacco smoke filters, e.g. filter tips or filtering inserts; Filters specially adapted for simulated smoking devices; Mouthpieces of cigars or cigarettes
    • A24D3/06—Use of materials for tobacco smoke filters
    • A24D3/08—Use of materials for tobacco smoke filters of organic materials as carrier or major constituent
    • A24D3/10—Use of materials for tobacco smoke filters of organic materials as carrier or major constituent of cellulose or cellulose derivatives
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/001—Combinations of extrusion moulding with other shaping operations
    • B29C48/0018—Combinations of extrusion moulding with other shaping operations combined with shaping by orienting, stretching or shrinking, e.g. film blowing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/022—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the choice of material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/28—Storing of extruded material, e.g. by winding up or stacking
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/285—Feeding the extrusion material to the extruder
    • B29C48/288—Feeding the extrusion material to the extruder in solid form, e.g. powder or granules
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
    • B29C48/395—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders
    • B29C48/40—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders using two or more parallel screws or at least two parallel non-intermeshing screws, e.g. twin screw extruders
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
    • B29C48/50—Details of extruders
    • B29C48/68—Barrels or cylinders
    • B29C48/682—Barrels or cylinders for twin screws
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/78—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling
    • B29C48/80—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling at the plasticising zone, e.g. by heating cylinders
    • B29C48/802—Heating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/88—Thermal treatment of the stream of extruded material, e.g. cooling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/88—Thermal treatment of the stream of extruded material, e.g. cooling
    • B29C48/90—Thermal treatment of the stream of extruded material, e.g. cooling with calibration or sizing, i.e. combined with fixing or setting of the final dimensions of the extruded article
    • B29C48/901—Thermal treatment of the stream of extruded material, e.g. cooling with calibration or sizing, i.e. combined with fixing or setting of the final dimensions of the extruded article of hollow bodies
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/88—Thermal treatment of the stream of extruded material, e.g. cooling
    • B29C48/911—Cooling
    • B29C48/9115—Cooling of hollow articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/92—Measuring, controlling or regulating
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08B—POLYSACCHARIDES; DERIVATIVES THEREOF
    • C08B30/00—Preparation of starch, degraded or non-chemically modified starch, amylose, or amylopectin
    • C08B30/12—Degraded, destructured or non-chemically modified starch, e.g. mechanically, enzymatically or by irradiation; Bleaching of starch
    • C08B30/14—Cold water dispersible or pregelatinised starch
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K5/00—Use of organic ingredients
    • C08K5/04—Oxygen-containing compounds
    • C08K5/05—Alcohols; Metal alcoholates
    • C08K5/053—Polyhydroxylic alcohols
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L3/00—Compositions of starch, amylose or amylopectin or of their derivatives or degradation products
    • C08L3/02—Starch; Degradation products thereof, e.g. dextrin
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L67/00—Compositions of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Compositions of derivatives of such polymers
    • C08L67/04—Polyesters derived from hydroxycarboxylic acids, e.g. lactones
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F6/00—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
    • D01F6/58—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolycondensation products
    • D01F6/62—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolycondensation products from polyesters
    • D01F6/625—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolycondensation products from polyesters derived from hydroxy-carboxylic acids, e.g. lactones
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24D—CIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES OF CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
    • A24D3/00—Tobacco smoke filters, e.g. filter tips or filtering inserts; Filters specially adapted for simulated smoking devices; Mouthpieces of cigars or cigarettes
    • A24D3/02—Manufacture of tobacco smoke filters
    • A24D3/0229—Filter rod forming processes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2793/00—Shaping techniques involving a cutting or machining operation
    • B29C2793/009—Shaping techniques involving a cutting or machining operation after shaping
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2948/00—Indexing scheme relating to extrusion moulding
    • B29C2948/92—Measuring, controlling or regulating
    • B29C2948/92009—Measured parameter
    • B29C2948/92209—Temperature
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2948/00—Indexing scheme relating to extrusion moulding
    • B29C2948/92—Measuring, controlling or regulating
    • B29C2948/92504—Controlled parameter
    • B29C2948/9258—Velocity
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2948/00—Indexing scheme relating to extrusion moulding
    • B29C2948/92—Measuring, controlling or regulating
    • B29C2948/92504—Controlled parameter
    • B29C2948/92704—Temperature
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/001—Combinations of extrusion moulding with other shaping operations
    • B29C48/0022—Combinations of extrusion moulding with other shaping operations combined with cutting
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2003/00—Use of starch or derivatives as moulding material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2067/00—Use of polyesters or derivatives thereof, as moulding material
    • B29K2067/04—Polyesters derived from hydroxycarboxylic acids
    • B29K2067/046—PLA, i.e. polylactic acid or polylactide
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/60—Multitubular or multicompartmented articles, e.g. honeycomb
    • B29L2031/601—Multi-tubular articles, i.e. composed of a plurality of tubes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/60—Multitubular or multicompartmented articles, e.g. honeycomb
    • B29L2031/608—Honeycomb structures
    • D—TEXTILES; PAPER
    • D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2331/00—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products
    • D10B2331/04—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products polyesters, e.g. polyethylene terephthalate [PET]
    • D10B2331/041—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products polyesters, e.g. polyethylene terephthalate [PET] derived from hydroxy-carboxylic acids, e.g. lactones
    • D—TEXTILES; PAPER
    • D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2401/00—Physical properties
    • D10B2401/12—Physical properties biodegradable

Definitions

  • the invention relates to the technical field of filter rod preparation, and more specifically, to a starch-based multi-channel airflow unit and a preparation method and application thereof.
  • the heating temperature of heat-not-burn cigarettes is usually below 500°C. Many harmful components of smoke can be greatly reduced, while the influence of flavor components is relatively small. Some flavor components may even increase due to the reduction of pyrolysis. Nicotine And most flavor components can be released from the tobacco and transferred to the smoke at a relatively low temperature (250-500°C). Because heat-not-burn cigarettes separate the tobacco matrix and the heating part, the current mainstream heating method is electric heating. Although electric heating avoids the risk of igniting the tobacco, it still has the problem of high smoke temperature during smoking, especially At present, the length of heat-not-burn cigarettes is generally shorter and longer, the time and distance of flue gas cooling are limited, the flue gas temperature is high, and the spur feel is strong. Therefore, how to develop a strong cooling material for heating non-burning cigarettes is also heating Key research aspects of non-burning cigarettes.
  • Prior art CN108143004A discloses a heat-not-burn cigarette smoke cooling material and its application.
  • the cooling material is mainly prepared by mixing and modifying PLA polylactic acid polymer material and its material to obtain a heat-not-burning cigarette smoke cooling material ,
  • the layered nanomaterials and fiber nanomaterials are used to improve the thermal shrinkage performance of PLA polymer materials to enhance the cooling performance of the material, but the overall cooling effect that can be achieved is limited, and there is no disclosure of related manufacturing process improvements.
  • the technical problem to be solved by the present invention is to overcome the disadvantages and deficiencies of the heat-not-burn cigarette filter rod cooling material prepared by the existing method of poor performance and unable to achieve high efficiency and strong cooling, and to provide a method for preparing a starch-based multi-channel airflow unit.
  • the purpose of the present invention is to provide a starch-based multi-channel airflow unit prepared by the above method.
  • Another object of the present invention is to provide an application of a starch-based multi-channel airflow unit in heating non-burning cigarettes.
  • a method for preparing a starch-based multi-channel airflow unit includes the following steps:
  • the temperature of the first zone is 135 ⁇ 145°C
  • the temperature of the second zone is 175 ⁇ 185°C
  • the temperature of the third zone is 190 ⁇ 200°C
  • the temperature of the fourth zone is 175 ⁇ 185°C;
  • the starch in S2 is gelatinized to form a fluid viscous paste system, which is added in the three temperature-controlled zones and fully mixed by a screw.
  • the softening material is mixed, and polyols, such as glycerol, propylene glycol, etc. are added in the four temperature control zones, and pumped by a pressure pump, and the pumping pressure is 0.15-0.25Mpa.
  • polyols such as glycerol, propylene glycol, etc.
  • the obtained starch-based multi-channel unit has a length within ⁇ 0.2 mm of a design value, a circumference within ⁇ 0.20 mm of a design value, and a wall thickness within ⁇ 0.025 mm.
  • the gelatinized starch of the present invention has the characteristics of self-adhesion under water swelling.
  • the phase change material polylactic acid has the effect of absorbing heat and storing heat, reducing the airflow temperature, and at the same time making the material have better adhesion and easy Screw extrusion molding, the softening material polyol is added to soften the material and improve its fluidity. Through the twin-screw extrusion stretching process, it is easy to shape, and the molded multi-channel airflow unit is soft but rigid and easier to cut.
  • the temperature in the first zone of S1 is 140°C
  • the temperature in the second zone is 180°C
  • the temperature in the third zone is 200°C
  • the temperature in the fourth zone is 180°C.
  • the heating rate of the second temperature control zone in S1 is 3-10°C/min.
  • the heating rate of the second temperature control zone can be 3°C/min, 4°C/min or 10°C/min.
  • the inventor inadvertently discovered that controlling the heating rate of the second zone to achieve rapid heating to melting in the 1 zone-2 zone can reduce the damage of the polylactic acid molecular structure during the process, which is beneficial to keep the material structure stable.
  • the heating rate of the three temperature control zones in S1 is 0.2-2°C/min.
  • the heating rate of the three temperature control zones can be 0.2°C/min, 1°C/min or 2°C/min.
  • controlling the heating rate of the three zones to achieve a small temperature rise in the 2 zones and 3 zones can make the polylactic acid molecules melt fully without decomposition, so that the mixing of various materials is more complete and uniform, while maintaining the polylactic acid molecules The structure remains unchanged.
  • the heating rate in the second temperature control zone is 4°C/min, and the heating rate in the third temperature control zone is 1°C/min.
  • the starch of the present invention is preferably corn starch, sweet potato starch, potato starch, lily starch, and the particle size of the starch material is preferably 10 ⁇ m-100 ⁇ m.
  • the specific operation of the starch substrate gelatinization in S2 is: gelatinize the mixed solution of starch and water at 80-90°C for 10-30 minutes to form gelatinized starch, wherein the mass percentage of starch in the mixed solution is 4.5 ⁇ 14.5%.
  • the mass percentage of starch in the mixed solution can be 4.5%, 10% or 14.5%.
  • the setting of the gelatinization temperature has obvious influence on the gelatinization effect. If the temperature is too low, the gelatinization is slow, and more external force is needed to accelerate the gelatinization. At the same time, gelatinization has certain requirements for water content. Too much water content and low viscosity will make it difficult to form a paste, and will affect the moisture content of the mixture material, which is not easy to process and shape, and too little water will not decompose sufficiently.
  • the feeding rate of the polylactic acid in S1 is 0.05 kg/min to 0.10 kg/min
  • the feeding rate of the starch in S2 is 0.20 kg/min to 0.40 kg/min
  • the polyol in S3 The feeding speed is 0.05 ⁇ 0.10kg/min.
  • the twin screw speed in S4 is 10-30 revolutions/min, and the material extrusion speed is 0.30kg/min-0.60kg/min.
  • the winding traction speed in S4 is 5m/min-20m/min, and the traction force is 0.2-0.5kN.
  • the negative pressure of the vacuum setting in S4 is 0.05-0.2 MPa.
  • the cooling setting in S4 is water cooling setting
  • the water temperature is 10°C-25°C
  • the water circulation rate is 5kg/min-10kg/min.
  • the starch-based multi-channel air flow unit prepared by the method for preparing the starch-based multi-channel air flow unit is also within the protection scope of the present invention.
  • the application method can be: 23mm starch-based tube + 7mm cellulose acetate as a basic unit combination, one basic unit is used for heat-not-burn cigarettes as a smoke filter section, where the cellulose acetate section is located at the downstream end of the smoke (lip end), and the starch-based tube Located at the upstream end of the flue gas, the temperature difference between the two ends of the starch-based tube is between 70 and 120°C, indicating that the starch-based tube unit has a strong cooling effect.
  • the present invention provides a method for preparing a starch-based multi-channel airflow unit.
  • the 1-zone-2 zone rapidly heats up to melting, which reduces the condensation during the melting and mixing process.
  • the destruction of the molecular structure of lactic acid, and the slight temperature increase in zone 2-3 can make the polylactic acid molecules melt fully without decomposing, achieving the effect of structural stability, and the cooling effect can reach 120°C.
  • the starch-based cooling material prepared by the present invention has excellent thermoplastic properties, convenient processing and molding, and effectively reduces the retention of aroma components in cigarette smoke.
  • the raw material reagents used in the embodiments of the present invention are conventionally purchased raw material reagents.
  • a method for preparing a starch-based multi-channel airflow unit includes the following steps:
  • the heating rate of the second temperature control zone is 3°C/min
  • the heating rate of the third temperature control zone is 0.2°C/min
  • the feeding rate of the polylactic acid in S1 is 0.05 kg/min
  • the feeding rate of the starch in S2 is 0.20 kg/min
  • the feeding rate of the polyol in S3 is 0.05.
  • a method for preparing a starch-based multi-channel airflow unit includes the following steps:
  • the heating rate of the second temperature control zone is 10°C/min
  • the heating rate of the temperature control three zone is 2°C/min.
  • the feeding rate of the polylactic acid in S1 is 0.10 kg/min
  • the feeding rate of the starch in S2 is 0.40 kg/min
  • the feeding rate of the polyol in S3 is 0.10 kg/min.
  • a method for preparing a starch-based multi-channel airflow unit includes the following steps:
  • the heating rate of the second temperature control zone is 4°C/min
  • the heating rate of the third temperature control zone is 1°C/min.
  • the feeding rate of the polylactic acid in S1 is 0.07 kg/min
  • the feeding rate of the starch in S2 is 0.30 kg/min
  • the feeding rate of the polyol in S3 is 0.08 kg/min.
  • a method for preparing a starch-based multi-channel airflow unit includes the following steps:
  • the heating rate of the second temperature control zone is 4°C/min
  • the heating rate of the third temperature control zone is 1°C/min.
  • the feeding rate of the polylactic acid in S1 is 0.07 kg/min
  • the feeding rate of the starch in S2 is 0.30 kg/min
  • the feeding rate of the polyol in S3 is 0.08 kg/min.
  • the particle size of the starch material is 10 ⁇ m, and the starch gelatinization operation is as follows:
  • the mixed solution of starch and water is gelatinized at 90° C. for 10 minutes to form gelatinized starch, wherein the mass percentage of starch in the mixed solution is 4.5%.
  • a method for preparing a starch-based multi-channel airflow unit includes the following steps:
  • the heating rate in the second temperature control zone is 4°C/min
  • the heating rate in the third temperature control zone is 1°C/min
  • the feeding rate of the polylactic acid in S1 is 0.07kg/min
  • the feeding rate of the starch in S2 is The feeding rate is 0.30kg/min
  • the feeding rate of the polyol in S3 is 0.08kg/min.
  • the particle size of the starch material is 10 ⁇ m, and the starch gelatinization operation is as follows:
  • the mixed solution of starch and water is gelatinized at 90° C. for 10 minutes to form gelatinized starch, wherein the mass percentage of starch in the mixed solution is 14.5%.
  • a method for preparing a starch-based multi-channel airflow unit includes the following steps:
  • the heating rate in the second temperature control zone is 4°C/min
  • the heating rate in the third temperature control zone is 1°C/min
  • the feeding rate of the polylactic acid in S1 is 0.07kg/min
  • the feeding rate of the starch in S2 is The feeding rate is 0.30kg/min
  • the feeding rate of the polyol in S3 is 0.08kg/min.
  • the particle size of the starch material is 10 ⁇ m, and the starch gelatinization operation is as follows:
  • the mixed solution of starch and water is gelatinized at 90° C. for 10 minutes to form gelatinized starch, wherein the mass percentage of starch in the mixed solution is 10%.
  • a method for preparing a starch-based multi-channel airflow unit includes the following steps:
  • the heating rate in the second temperature control zone is 4°C/min
  • the heating rate in the third temperature control zone is 1°C/min
  • the feeding rate of the polylactic acid in S1 is 0.07kg/min
  • the feeding rate of the starch in S2 is The feeding rate is 0.30kg/min
  • the feeding rate of the polyol in S3 is 0.08kg/min.
  • the particle size of the starch material is 10 ⁇ m, and the starch gelatinization operation is as follows:
  • the mixed solution of starch and water is gelatinized at 90° C. for 10 minutes to form gelatinized starch, wherein the mass percentage of starch in the mixed solution is 10%.
  • the twin screw speed is 20 revolutions/min
  • the material extrusion speed is 0.30kg/min
  • the winding traction speed is 5m/min
  • the traction force is 0.2kN
  • the negative pressure of vacuum setting is 0.05MPa
  • the cooling setting is water cooling setting
  • the water temperature is 10°C
  • the water circulation rate is 5kg/min.
  • a method for preparing a starch-based multi-channel airflow unit includes the following steps:
  • the heating rate in the second temperature control zone is 4°C/min
  • the heating rate in the third temperature control zone is 1°C/min
  • the feeding rate of the polylactic acid in S1 is 0.07kg/min
  • the feeding rate of the starch in S2 is The feeding rate is 0.30kg/min
  • the feeding rate of the polyol in S3 is 0.08kg/min.
  • the particle size of the starch material is 10 ⁇ m, and the starch gelatinization operation is as follows:
  • the mixed solution of starch and water is gelatinized at 90° C. for 10 minutes to form gelatinized starch, wherein the mass percentage of starch in the mixed solution is 10%.
  • the twin screw speed is 20 revolutions/min
  • the material extrusion speed is 0.60kg/min
  • the rewinding traction speed is 10m/min
  • the traction force is 0.3kN
  • the vacuum setting negative pressure is 0.1MPa
  • the cooling setting is water-cooling setting
  • the water temperature is 10°C
  • the water circulation rate is 10kg/min.
  • a preparation method of a starch-based multi-channel airflow unit includes the following steps:
  • the heating rate in the second temperature control zone is 4°C/min
  • the heating rate in the third temperature control zone is 1°C/min
  • the feeding rate of the polylactic acid in S1 is 0.07kg/min
  • the feeding rate of the starch in S2 is The feeding rate is 0.30kg/min
  • the feeding rate of the polyol in S3 is 0.08kg/min.
  • the particle size of the starch material is 10 ⁇ m, and the starch gelatinization operation is as follows:
  • the mixed solution of starch and water is gelatinized at 90° C. for 10 minutes to form gelatinized starch, wherein the mass percentage of starch in the mixed solution is 10%.
  • the twin screw speed is 20 rpm
  • the material extrusion speed is 0.60kg/min
  • the winding traction speed is 20m/min
  • the traction force is 0.5kN
  • the vacuum setting negative pressure is 0.1MPa
  • the cooling setting is water-cooling setting
  • the water temperature is 10°C
  • the water circulation rate is 10kg/min.
  • a preparation method of a starch-based multi-channel airflow unit includes the following steps:
  • a preparation method of a starch-based multi-channel airflow unit includes the following steps:
  • the cooling materials prepared in the foregoing Examples 1-9 and Comparative Examples 1-2 were prepared into corresponding heat-not-burn cigarette filter rods.
  • the filter rods include a cooling material section and a fiber acetate section.
  • the corresponding filter rods are applied to heat-not-burn cigarettes, Detect the temperature at both ends of the cooling material and record the relevant temperature difference, which is the cooling effect.
  • the length of the cooling material section is 23mm and the length of the acetate fiber section is 7mm.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Materials Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Biochemistry (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • General Chemical & Material Sciences (AREA)
  • Textile Engineering (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Biological Depolymerization Polymers (AREA)
  • Cigarettes, Filters, And Manufacturing Of Filters (AREA)
  • Processes Of Treating Macromolecular Substances (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Abstract

本发明公开了一种淀粉基多通道气流单元及其制备方法和应用。本发明的制备方法包括如下步骤：将聚乳酸熔融，其中控温一区温度为135～145℃，二区温度为175～185℃，三区温度为190～200℃，四区温度为175～185℃；将淀粉基材糊化，在控温三区加入，充分混合；将多元醇在控温三区加入，充分混合；将混合物料双螺杆挤出，真空定型、冷却定型，收卷切割得到所述淀粉基多通道气流单元。本发明的制备方法通过物料熔融混合过程中四区升温的特定温度设置，减少了熔融混合过程中聚乳酸分子结构的破坏，使得聚乳酸分子熔融充分而不分解，达到了结构稳固的效果，制备得到的淀粉基降温材料具有优异的热塑性能，加工成型方便，具有优异的强降温效果，可降温达120℃。

Description

一种淀粉基多通道气流单元及其制备方法和应用 技术领域
本发明涉及滤棒制备技术领域，更具体地，涉及一种淀粉基多通道气流单元及其制备方法和应用。
背景技术
加热不燃烧卷烟的卷烟加热温度通常在500℃以下，烟气多种有害成分可以大幅度降低，而香味成分受到的影响相对较小，某些香味成分甚至可能因热解减少而增加，烟碱和多数香味成分在相对较低温度(250-500℃)下就可以从烟草中释放出来并转移到烟气中。因为加热不燃烧卷烟是将烟草基体和加热部分分开的，目前主流的加热方式为电加热，电加热虽然避免了引燃烟草的风险，但仍存在抽吸时烟气温度偏高的问题，尤其是目前加热不燃烧卷烟的烟支长度普遍较多较短，烟气降温时间和距离有限，烟气温度高，热刺感强，因此如何开发一种强降温的加热不燃烧卷烟降温材料也是加热不燃烧卷烟的重点研究方面。
目前采用聚乳酸PLA薄膜作为烟气降温材料已有相当的多的研究，聚乳酸薄膜虽然有降温效果，但受热容易收缩，且降温效果也有待于进一步提升。现有技术CN108143004A公开了一种加热不燃烧卷烟烟气降温材料及其应用，该降温材料主要是通过将PLA聚乳酸高分子材料与其材料混合改性制备得到一种加热不燃烧卷烟烟气降温材料，通过层状纳米材料、纤维纳米材料来改善PLA高分子材料的热收缩性能，以提升材料的降温性能，但整体所能达到的降温效果有限，且未有相关制备工艺上的改进技术公开。
发明内容
本发明要解决的技术问题是克服现有方法制备的加热不燃烧卷烟滤棒降温材料性能不佳，不能实现高效强降温的缺陷和不足，提供一种淀粉基多通道气流单元的制备方法。
本发明的目的是提供一种上述方法制备的淀粉基多通道气流单元。
本发明的又一目的在于提供一种淀粉基多通道气流单元在加热不燃烧卷烟中的应用。
本发明上述目的通过以下技术方案实现：
一种淀粉基多通道气流单元的制备方法，包括如下步骤：
S1.将聚乳酸熔融，其中控温一区温度为135～145℃，二区温度为175～185℃，三区温度为190～200℃，四区温度为175～185℃；
S2.将淀粉基材糊化，在控温三区加入，充分混合；
S3.将多元醇在控温三区加入，充分混合；
S4.将混合物料双螺杆挤出，真空定型、冷却定型，收卷切割得到所述淀粉基多通道气流单元。
其中S2中淀粉通过糊化处理形成流动性的粘稠糊状体系，在控温三区加入，通过螺杆充分混合。
S3中软化材料混合，多元醇，如丙三醇、丙二醇等在控温四区加入，以压力泵泵入，泵送压力0.15～0.25Mpa。
优选地，所得淀粉基多通道单元，长度在设计值±0.2mm以内，圆周在设计值±0.20mm以内，壁厚在±0.025mm以内。
本发明的糊化淀粉在水润胀的下，淀粉具有自身粘连的特性，相变材料聚乳酸具有吸收热量并存储热量的效果，降低气流温度的效果，同时使材料具有更好粘连性，易于螺杆挤出成型，软化材料多元醇的加入使材料软化，流动性提升，通过双螺杆挤出拉伸工艺，易于成型，并且是成型后的多通道气流单元柔软但有刚性，更易切割。
优选地，S1中控温一区温度为140℃，二区温度为180℃，三区温度为200℃，四区温度为180℃。
优选地，S1中所述控温二区的升温速率为3～10℃/min。例如控温二区的升温速率可以为3℃/min、4℃/min或10℃/min。发明人无意中发现，控制二区的升温速率，实现1区-2区迅速升温至熔融，可以减少过程中聚乳酸分子结构的破坏，有利于保持材料结构稳定。
优选地，S1中所述控温三区的升温速率为0.2～2℃/min。控温三区的升温速率可为0.2℃/min、1℃/min或2℃/min。发明人还发现，控制三区的升温速率，实现2区-3区的小幅升温，可以使得聚乳酸分子熔融充分而不分解，使得各种物料的混合更充分、均匀，同时保持聚乳酸分子的结构不变。
为了更好的保护聚乳酸分子结构，达到更好的降温效果，更优选控温二区的升温速率为4℃/min，控温三区的升温速率为1℃/min。
本发明的淀粉优选玉米淀粉、红薯淀粉、马铃薯淀粉、百合淀粉，淀粉材料的粒径优选为10μm-100μm。
优选地，S2中所述淀粉基材糊化具体操作为：将淀粉和水的混合溶液在80～90℃下糊化10～30min，形成糊化淀粉，其中混合溶液中淀粉的质量百分数为4.5～14.5％。例如混合溶液中淀粉的质量百分数可以为4.5％、10％或14.5％。
糊化温度的设定对于糊化效果的影响比较明显，温度太低糊化慢，需要借助较多的外力加速糊化。同时，糊化对水的含量有一定要求，水含量太多，粘度小难以形成糊状，而且会影响混合物物料的含水率，不易加工成型，水太少分解不充分。
优选地，S1中所述聚乳酸的喂料速度为0.05kg/min～0.10kg/min，S2中所述淀粉的喂料速度为0.20kg/min～0.40kg/min，S3中所述多元醇的喂料速度为0.05～0.10kg/min。
优选地，S4中双螺杆转速为10～30转/min，物料挤出速度0.30kg/min～0.60kg/min。
优选地，S4中所述收卷牵引速率5m/min～20m/min，牵引力0.2～0.5kN。
优选地，S4中所述真空定型的负压为0.05-0.2MPa。
优选地，S4中所述冷却定型为水冷定型，水温10℃～25℃，水循环速率5kg/min～10kg/min。
上述淀粉基多通道气流单元的制备方法制备得到的淀粉基多通道气流单元也在本发明的保护范围之内。
淀粉基多通道气流单元在加热不燃烧卷烟滤棒制备中的应用也在本发明的保护范围之内。
应用方式可以为：23mm淀粉基管+7mm醋纤为一个基本单元组合，一个基本单元应用于加热不燃烧卷烟作为烟雾过滤段，其中醋纤段位于烟气下游端(唇端)，淀粉基管位于烟气上游端，淀粉基管两端的温差在70～120℃之间，表明淀粉基管单元具有强烈的降温作用。
与现有技术相比，本发明的有益效果是：
(1)本发明提供了一种淀粉基多通道气流单元的制备方法，通过物料熔融混合过程中四区升温的特定温度设置，1区-2区迅速升温至熔融，减少了熔融混合过程中聚乳酸分子结构的破坏，现2区-3区的小幅升温，可以使得聚乳酸分子 熔融充分而不分解，达到了结构稳固的效果，降温效果可以达到120℃。
(2)本发明制备的淀粉基降温材料具有优异的热塑性能，加工成型方便，且有效降低了对卷烟烟气中香气成分等的截留。
具体实施方式
下面结合具体实施方式对本发明作进一步的说明，但实施例并不对本发明做任何形式的限定。除非另有说明，本发明实施例采用的原料试剂为常规购买的原料试剂。
实施例1
一种淀粉基多通道气流单元的制备方法，包括如下步骤：
S1.将聚乳酸熔融，其中控温一区温度为140℃，二区温度为180℃，三区温度为200℃，四区温度为180℃，聚乳酸分子量为15000；
S2.将淀粉基材糊化，在控温三区加入，充分混合；
S3.将丙三醇在控温三区加入，充分混合；
S4.将混合物料双螺杆挤出，真空定型、冷却定型，收卷切割得到所述淀粉基多通道气流单元，
其中控温二区的升温速率为3℃/min，控温三区的升温速率为0.2℃/min，
S1中所述聚乳酸的喂料速度为0.05kg/min，S2中所述淀粉的喂料速度为0.20kg/min，S3中所述多元醇的喂料速度为0.05。
实施例2
一种淀粉基多通道气流单元的制备方法，包括如下步骤：
S1.将聚乳酸熔融，其中控温一区温度为140℃，二区温度为180℃，三区温度为200℃，四区温度为180℃，聚乳酸分子量为15000；
S2.将淀粉基材糊化，在控温三区加入，充分混合；
S3.将丙三醇在控温三区加入，充分混合；
S4.将混合物料双螺杆挤出，真空定型、冷却定型，收卷切割得到所述淀粉基多通道气流单元，
其中控温二区的升温速率为10℃/min，控温三区的升温速率为2℃/min，
S1中所述聚乳酸的喂料速度为0.10kg/min，S2中所述淀粉的喂料速度为0.40kg/min，S3中所述多元醇的喂料速度为0.10kg/min。
实施例3
一种淀粉基多通道气流单元的制备方法，包括如下步骤：
S1.将聚乳酸熔融，其中控温一区温度为140℃，二区温度为180℃，三区温度为200℃，四区温度为180℃，聚乳酸分子量为15000；
S2.将淀粉基材糊化，在控温三区加入，充分混合；
S3.将丙三醇在控温三区加入，充分混合；
S4.将混合物料双螺杆挤出，真空定型、冷却定型，收卷切割得到所述淀粉基多通道气流单元，
其中控温二区的升温速率为4℃/min，控温三区的升温速率为1℃/min，
S1中所述聚乳酸的喂料速度为0.07kg/min，S2中所述淀粉的喂料速度为0.30kg/min，S3中所述多元醇的喂料速度为0.08kg/min。
实施例4
一种淀粉基多通道气流单元的制备方法，包括如下步骤：
S1.将聚乳酸熔融，其中控温一区温度为140℃，二区温度为180℃，三区温度为200℃，四区温度为180℃，聚乳酸分子量为15000；
S2.将淀粉基材糊化，在控温三区加入，充分混合；
S3.将丙三醇在控温三区加入，充分混合；
S4.将混合物料双螺杆挤出，真空定型、冷却定型，收卷切割得到所述淀粉基多通道气流单元，
其中控温二区的升温速率为4℃/min，控温三区的升温速率为1℃/min，
S1中所述聚乳酸的喂料速度为0.07kg/min，S2中所述淀粉的喂料速度为0.30kg/min，S3中所述多元醇的喂料速度为0.08kg/min。
淀粉材料的粒径为10μm，淀粉糊化操作如下：
将淀粉和水的混合溶液在90℃下糊化10min，形成糊化淀粉，其中混合溶液中淀粉的质量百分数为4.5％。
实施例5
一种淀粉基多通道气流单元的制备方法，包括如下步骤：
S1.将聚乳酸熔融，其中控温一区温度为140℃，二区温度为180℃，三区温度为200℃，四区温度为180℃，聚乳酸分子量为15000；
S2.将淀粉基材糊化，在控温三区加入，充分混合；
S3.将丙三醇在控温三区加入，充分混合；
S4.将混合物料双螺杆挤出，真空定型、冷却定型，收卷切割得到所述淀粉基多通道气流单元，
其中控温二区的升温速率为4℃/min，控温三区的升温速率为1℃/min，S1中所述聚乳酸的喂料速度为0.07kg/min，S2中所述淀粉的喂料速度为0.30kg/min，S3中所述多元醇的喂料速度为0.08kg/min。
淀粉材料的粒径为10μm，淀粉糊化操作如下：
将淀粉和水的混合溶液在90℃下糊化10min，形成糊化淀粉，其中混合溶液中淀粉的质量百分数为14.5％。
实施例6
一种淀粉基多通道气流单元的制备方法，包括如下步骤：
S1.将聚乳酸熔融，其中控温一区温度为140℃，二区温度为180℃，三区温度为200℃，四区温度为180℃，聚乳酸分子量为15000；
S2.将淀粉基材糊化，在控温三区加入，充分混合；
S3.将丙三醇在控温三区加入，充分混合；
S4.将混合物料双螺杆挤出，真空定型、冷却定型，收卷切割得到所述淀粉基多通道气流单元，
其中控温二区的升温速率为4℃/min，控温三区的升温速率为1℃/min，S1中所述聚乳酸的喂料速度为0.07kg/min，S2中所述淀粉的喂料速度为0.30kg/min，S3中所述多元醇的喂料速度为0.08kg/min。
淀粉材料的粒径为10μm，淀粉糊化操作如下：
将淀粉和水的混合溶液在90℃下糊化10min，形成糊化淀粉，其中混合溶液中淀粉的质量百分数为10％。
实施例7
一种淀粉基多通道气流单元的制备方法，包括如下步骤：
S1.将聚乳酸熔融，其中控温一区温度为140℃，二区温度为180℃，三区温度为200℃，四区温度为180℃，聚乳酸分子量为15000；
S2.将淀粉基材糊化，在控温三区加入，充分混合；
S3.将丙三醇在控温三区加入，充分混合；
S4.将混合物料双螺杆挤出，真空定型、冷却定型，收卷切割得到所述淀粉基多通道气流单元，
其中控温二区的升温速率为4℃/min，控温三区的升温速率为1℃/min，S1中所述聚乳酸的喂料速度为0.07kg/min，S2中所述淀粉的喂料速度为0.30kg/min，S3中所述多元醇的喂料速度为0.08kg/min。
淀粉材料的粒径为10μm，淀粉糊化操作如下：
将淀粉和水的混合溶液在90℃下糊化10min，形成糊化淀粉，其中混合溶液中淀粉的质量百分数为10％。
S4中双螺杆转速为20转/min，物料挤出速度0.30kg/min，收卷牵引速率5m/min，牵引力0.2kN，真空定型的负压为0.05MPa，冷却定型为水冷定型，水温10℃，水循环速率5kg/min。
实施例8
一种淀粉基多通道气流单元的制备方法，包括如下步骤：
S1.将聚乳酸熔融，其中控温一区温度为140℃，二区温度为180℃，三区温度为200℃，四区温度为180℃，聚乳酸分子量为15000；
S2.将淀粉基材糊化，在控温三区加入，充分混合；
S3.将丙三醇在控温三区加入，充分混合；
S4.将混合物料双螺杆挤出，真空定型、冷却定型，收卷切割得到所述淀粉基多通道气流单元，
其中控温二区的升温速率为4℃/min，控温三区的升温速率为1℃/min，S1中所述聚乳酸的喂料速度为0.07kg/min，S2中所述淀粉的喂料速度为0.30kg/min，S3中所述多元醇的喂料速度为0.08kg/min。
淀粉材料的粒径为10μm，淀粉糊化操作如下：
将淀粉和水的混合溶液在90℃下糊化10min，形成糊化淀粉，其中混合溶液中淀粉的质量百分数为10％。
S4中双螺杆转速为20转/min，物料挤出速度0.60kg/min，收卷牵引速率10m/min，牵引力0.3kN，真空定型的负压为0.1MPa，冷却定型为水冷定型，水温10℃，水循环速率10kg/min。
实施例9
一种淀粉基多通道气流单元的制备方法，包括如下步骤：
S1.将聚乳酸熔融，其中控温一区温度为140℃，二区温度为180℃，三区温度为200℃，四区温度为180℃，聚乳酸分子量为15000；
S2.将淀粉基材糊化，在控温三区加入，充分混合；
S3.将丙三醇在控温三区加入，充分混合；
S4.将混合物料双螺杆挤出，真空定型、冷却定型，收卷切割得到所述淀粉基多通道气流单元，
其中控温二区的升温速率为4℃/min，控温三区的升温速率为1℃/min，S1中所述聚乳酸的喂料速度为0.07kg/min，S2中所述淀粉的喂料速度为0.30kg/min，S3中所述多元醇的喂料速度为0.08kg/min。
淀粉材料的粒径为10μm，淀粉糊化操作如下：
将淀粉和水的混合溶液在90℃下糊化10min，形成糊化淀粉，其中混合溶液中淀粉的质量百分数为10％。
S4中双螺杆转速为20转/min，物料挤出速度0.60kg/min，收卷牵引速率20m/min，牵引力0.5kN，真空定型的负压为0.1MPa，冷却定型为水冷定型，水温10℃，水循环速率10kg/min。
对比例1
一种淀粉基多通道气流单元的制备方法，包括如下步骤：
S1.将聚乳酸熔融，其中控温一区温度为125℃，二区温度为165℃，三区温度为180℃，四区温度为165℃；
S2.将淀粉基材糊化，在控温三区加入，充分混合；
S3.将多元醇在控温三区加入，充分混合；
S4.将混合物料双螺杆挤出，真空定型、冷却定型，收卷切割得到所述淀粉基多通道气流单元。
对比例2
一种淀粉基多通道气流单元的制备方法，包括如下步骤：
S1.将聚乳酸熔融，其中控温一区温度为155℃，二区温度为195℃，三区温度为210℃，四区温度为195℃；
S2.将淀粉基材糊化，在控温三区加入，充分混合；
S3.将多元醇在控温三区加入，充分混合；
S4.将混合物料双螺杆挤出，真空定型、冷却定型，收卷切割得到所述淀粉基多通道气流单元。
结果检测
材料的降温效果检测
将上述实施例1-9和对比例1-2制备的降温材料制备成相应的加热不燃烧卷烟滤棒，滤棒包括降温材料段和醋纤段，将相应滤棒应用于加热不燃烧卷烟，检测降温材料两端的温度，记录相关温度差值，即为降温效果，其中降温材料段长度为23mm，醋纤段长度为7mm。
检测结果如表1所示：
表1
序号 降温效果/℃
实施例1 113
实施例2 105
实施例3 120
实施例4 111
实施例5 98
实施例6 85
实施例7 99
实施例8 106
实施例9 78
对比例1 68
对比例2 65
显然，本发明的上述实施例仅仅是为清楚地说明本发明所作的举例，而并非是对本发明的实施方式的限定。对于所属领域的普通技术人员来说，在上述说明的基础上还可以做出其它不同形式的变化或变动。这里无需也无法对所有的实施方式予以穷举。凡在本发明的精神和原则之内所作的任何修改、等同替换和改进等，均应包含在本发明权利要求的保护范围之内。

Claims (10)

  1. 一种淀粉基多通道气流单元的制备方法，其特征在于，包括如下步骤：
    S1.将聚乳酸熔融，其中控温一区温度为135～145℃，二区温度为175～185℃，三区温度为190～200℃，四区温度为175～185℃；
    S2.将淀粉基材糊化，在控温三区加入，充分混合；
    S3.将多元醇在控温三区加入，充分混合；
    S4.将混合物料双螺杆挤出，真空定型、冷却定型，收卷切割得到所述淀粉基多通道气流单元。
  2. 如权利要求1所述制备方法，其特征在于，S1中所述控温二区的升温速率为3～10℃/min。
  3. 如权利要求2所述制备方法，其特征在于，S1中所述控温三区的升温速率为0.2～2℃/min。
  4. 如权利要求1所述制备方法，其特征在于，S2中所述淀粉基材糊化具体操作为：将淀粉和水的混合溶液在80～90℃下糊化10～30min，形成糊化淀粉，其中混合溶液中淀粉的质量百分数为4.5～14.5％。
  5. 如权利要求3所述制备方法，其特征在于，S1中所述聚乳酸的喂料速度为0.05kg/min～0.10kg/min，S2中所述淀粉的喂料速度为0.20kg/min～0.40kg/min，S3中所述多元醇的喂料速度为0.05～0.10kg/min。
  6. 如权利要求5所述制备方法，其特征在于，S4中双螺杆转速为10～30转/min，物料挤出速度0.30kg/min～0.60kg/min。
  7. 如权利要求6所述制备方法，其特征在于，S4中所述收卷牵引速率5m/min～20m/min，牵引力0.2～0.5kN。
  8. 如权利要求7所述制备方法，其特征在于，S4中所述冷却定型为水冷定型，水温10℃-25℃，水循环速率5kg/min-10kg/min。
  9. 权利要求1～8任意一项所述淀粉基多通道气流单元的制备方法制备得到的淀粉基多通道气流单元。
  10. 权利要求9所述淀粉基多通道气流单元在加热不燃烧卷烟滤棒制备中的应用。
PCT/CN2019/095700 2019-06-27 2019-07-12 一种淀粉基多通道气流单元及其制备方法和应用 Ceased WO2020258387A1 (zh)

Priority Applications (7)

Application Number Priority Date Filing Date Title
JP2020573414A JP7108058B2 (ja) 2019-06-27 2019-07-12 澱粉製マルチチャンネル式気流ユニット、その製造方法、及び応用
MYPI2020007213A MY209357A (en) 2019-06-27 2019-07-12 Starch-based multi-channel airflow unit and preparation method and application thereof
UAA202100087A UA124916C2 (uk) 2019-06-27 2019-07-12 Багатоканальний блок на основі крохмалю для проходження повітря, спосіб його виготовлення та його застосування
KR1020217000878A KR102671164B1 (ko) 2019-06-27 2019-07-12 전분계 멀티채널 기류 유닛 및 그 제조 방법과 응용
US17/259,562 US11911948B2 (en) 2019-06-27 2019-07-12 Starch-based multi-channel airflow unit and preparation method and application thereof
EP19934341.9A EP3800032B1 (en) 2019-06-27 2019-07-12 Preparation method for a starch-based multi-channel airflow unit
PH12021550149A PH12021550149A1 (en) 2019-06-27 2021-01-19 Starch-based multi-channel airflow unit and preparation method and application thereof

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201910567349.6A CN110406072B (zh) 2019-06-27 2019-06-27 一种淀粉基多通道气流单元及其制备方法和应用
CN201910567349.6 2019-06-27

Publications (1)

Publication Number Publication Date
WO2020258387A1 true WO2020258387A1 (zh) 2020-12-30

Family

ID=68359874

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2019/095700 Ceased WO2020258387A1 (zh) 2019-06-27 2019-07-12 一种淀粉基多通道气流单元及其制备方法和应用

Country Status (9)

Country Link
US (1) US11911948B2 (zh)
EP (1) EP3800032B1 (zh)
JP (1) JP7108058B2 (zh)
KR (1) KR102671164B1 (zh)
CN (1) CN110406072B (zh)
MY (1) MY209357A (zh)
PH (1) PH12021550149A1 (zh)
UA (1) UA124916C2 (zh)
WO (1) WO2020258387A1 (zh)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111067135A (zh) * 2019-11-29 2020-04-28 云南巴菰生物科技有限公司 一种用于加热不燃烧烟支的植物淀粉纸降温段
CN112571759B (zh) * 2020-12-11 2024-07-26 湖北中烟工业有限责任公司 一种用于生产降温固件的装置及方法
CN112895374B (zh) * 2021-02-07 2023-04-25 云南长宜科技有限公司 一种气流单元的制备方法及装置
CN114668172B (zh) * 2022-04-29 2024-05-14 云南长宜科技有限公司 一种多通道增香复合滤棒的制备方法

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6147135A (en) * 1998-12-31 2000-11-14 Ethicon, Inc. Fabrication of biocompatible polymeric composites
CN103584281A (zh) * 2013-11-25 2014-02-19 湖北中烟工业有限责任公司 一种香烟过滤嘴及其制备方法
CN104532386A (zh) * 2014-12-18 2015-04-22 红塔烟草(集团)有限责任公司 一种聚乳酸滤棒纸芯及其制造方法
CN107458055A (zh) * 2017-08-31 2017-12-12 云南巴菰生物科技有限公司 一种气雾冷却复合材料及其制备方法与它的用途
CN108113051A (zh) * 2017-12-07 2018-06-05 共青城道乐投资管理合伙企业（有限合伙） 一种加热不燃烧卷烟滤嘴和加热不燃烧卷烟
CN108143004A (zh) 2017-12-22 2018-06-12 安徽中烟工业有限责任公司 一种加热不燃烧卷烟烟气降温材料及其应用

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5922379A (en) * 1998-05-05 1999-07-13 Natural Polymer International Corporation Biodegradable protein/starch-based thermoplastic composition
CN100506900C (zh) * 2006-03-15 2009-07-01 赵小英 一种全生物降解塑料合金及其制备方法
CN1919926B (zh) * 2006-09-12 2010-05-12 华南农业大学 一种聚乳酸-淀粉发泡材料及其制备方法
CN101914294B (zh) * 2010-08-26 2012-08-29 成都新柯力化工科技有限公司 一种仿纸生物降解树脂及制备方法
CN102838795B (zh) * 2012-07-26 2014-05-21 湖北中烟工业有限责任公司 一种卷烟滤嘴用添加剂树脂载体及其制备方法
KR101573986B1 (ko) * 2013-12-09 2015-12-02 주식회사 케이티앤지 담배 필터 및 그를 구비한 향 캡슐 적용 담배
GB201418771D0 (en) * 2014-10-22 2014-12-03 British American Tobacco Co Methods of manufacturing a double walled tube
CN107031156B (zh) * 2016-02-04 2019-03-08 中国科学院化学研究所 一种具备xaybx结构的多层复合膜及其制备方法和用途
CN107119460A (zh) * 2017-06-29 2017-09-01 滁州卷烟材料厂 一种卷烟滤嘴纤维的制备方法
CN108835710B (zh) * 2018-07-06 2023-06-23 武汉水木弘新材料有限公司 一种烟气温度可控、低温不燃烧的香烟过滤嘴棒及其制备方法
CN109393558B (zh) * 2018-12-19 2022-03-25 湖北金叶玉阳化纤有限公司 一种pla降温滤棒及其制备方法
CN109691697B (zh) * 2019-03-01 2021-07-30 南通醋酸纤维有限公司 一种气溶胶生成制品、制备方法及应用

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6147135A (en) * 1998-12-31 2000-11-14 Ethicon, Inc. Fabrication of biocompatible polymeric composites
CN103584281A (zh) * 2013-11-25 2014-02-19 湖北中烟工业有限责任公司 一种香烟过滤嘴及其制备方法
CN104532386A (zh) * 2014-12-18 2015-04-22 红塔烟草(集团)有限责任公司 一种聚乳酸滤棒纸芯及其制造方法
CN107458055A (zh) * 2017-08-31 2017-12-12 云南巴菰生物科技有限公司 一种气雾冷却复合材料及其制备方法与它的用途
CN108113051A (zh) * 2017-12-07 2018-06-05 共青城道乐投资管理合伙企业（有限合伙） 一种加热不燃烧卷烟滤嘴和加热不燃烧卷烟
CN108143004A (zh) 2017-12-22 2018-06-12 安徽中烟工业有限责任公司 一种加热不燃烧卷烟烟气降温材料及其应用

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP3800032A4

Also Published As

Publication number Publication date
US11911948B2 (en) 2024-02-27
PH12021550149A1 (en) 2021-09-13
JP7108058B2 (ja) 2022-07-27
MY209357A (en) 2025-07-03
KR20210019087A (ko) 2021-02-19
EP3800032A1 (en) 2021-04-07
KR102671164B1 (ko) 2024-06-04
UA124916C2 (uk) 2021-12-08
JP2021530978A (ja) 2021-11-18
CN110406072A (zh) 2019-11-05
EP3800032B1 (en) 2025-09-03
US20210323210A1 (en) 2021-10-21
CN110406072B (zh) 2020-10-02
EP3800032A4 (en) 2021-10-06

Similar Documents

Publication Publication Date Title
CN110406072B (zh) 一种淀粉基多通道气流单元及其制备方法和应用
CN103584281B (zh) 一种香烟过滤嘴及其制备方法
JP6416512B2 (ja) 中空状たばこフィルター部材の製造方法
NO790820L (no) Skummede celluloseacetatfiltre med aapen cellestruktur
CN113773626B (zh) 一种环保型可降解母料及其制备方法和应用
CN105768191A (zh) 一种再造烟叶及利用其所制备的加热不燃烧卷烟
CN103300475B (zh) 可降解型烟用复合滤棒的制备方法
CN103496239A (zh) 一种特殊wvtr透气膜及其生产工艺
CN111254504A (zh) 一种全消光轻量吸湿速干聚酯纤维及其制备方法
CN107458055A (zh) 一种气雾冷却复合材料及其制备方法与它的用途
CN105177737B (zh) 一种可降解烟用过滤嘴丝束及其制备方法
CN113773623A (zh) 全降解降温固件及其制备方法和用途
CN102492231B (zh) 一种无卤阻燃聚苯乙烯复合材料及其制备方法
CN103627152A (zh) 一种高性能抗水解pet母粒及其制备方法
CN107189213B (zh) 一种天然芳香型发泡材料及制备方法
CN110256765B (zh) 双向拉伸发泡聚丙烯薄膜及其制备方法
CN106433052A (zh) 一种3d打印用pla/pcl材料
CN111822484A (zh) 一种废弃醋酸纤维滤棒的再生方法及其应用
WO2020258388A1 (zh) 一种淀粉基降温材料及其应用
CN112895374B (zh) 一种气流单元的制备方法及装置
CN107793592B (zh) 生物降解脂肪族芳香族共聚酯增韧热塑性聚多糖共混物及其制备方法和薄膜
CN108794814A (zh) 环保型醋酸纤维素化合物的制备方法
CN114521674B (zh) 一种卷烟嘴棒用低吸阻材料
CN116968290B (zh) 一种耐压橡胶管成型方法
CN107118527A (zh) 一种制备高水蒸气阻隔可生物降解复合材料的方法

Legal Events

Date Code Title Description
ENP Entry into the national phase

Ref document number: 2020573414

Country of ref document: JP

Kind code of ref document: A

ENP Entry into the national phase

Ref document number: 20217000878

Country of ref document: KR

Kind code of ref document: A

ENP Entry into the national phase

Ref document number: 2019934341

Country of ref document: EP

Effective date: 20201228

121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 19934341

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

WWG Wipo information: grant in national office

Ref document number: 2019934341

Country of ref document: EP