CN101564874A - Method for preparing nanometer heat-insulation composite material - Google Patents
Method for preparing nanometer heat-insulation composite material Download PDFInfo
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- CN101564874A CN101564874A CNA2009100744542A CN200910074454A CN101564874A CN 101564874 A CN101564874 A CN 101564874A CN A2009100744542 A CNA2009100744542 A CN A2009100744542A CN 200910074454 A CN200910074454 A CN 200910074454A CN 101564874 A CN101564874 A CN 101564874A
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- 239000002131 composite material Substances 0.000 title claims abstract description 19
- 238000009413 insulation Methods 0.000 title claims abstract description 17
- 238000000034 method Methods 0.000 title abstract 3
- 239000003365 glass fiber Substances 0.000 claims abstract description 35
- 239000004677 Nylon Substances 0.000 claims abstract description 32
- 229920002302 Nylon 6,6 Polymers 0.000 claims abstract description 32
- 229920001778 nylon Polymers 0.000 claims abstract description 32
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N titanium dioxide Inorganic materials O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims abstract description 19
- 238000002360 preparation method Methods 0.000 claims abstract description 18
- 239000007822 coupling agent Substances 0.000 claims abstract description 15
- 239000000463 material Substances 0.000 claims abstract description 12
- 239000004014 plasticizer Substances 0.000 claims abstract description 12
- 239000003963 antioxidant agent Substances 0.000 claims description 18
- 230000003078 antioxidant effect Effects 0.000 claims description 18
- 239000000314 lubricant Substances 0.000 claims description 16
- 239000002994 raw material Substances 0.000 claims description 15
- 239000002245 particle Substances 0.000 claims description 11
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 claims description 9
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 claims description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 6
- IPRJXAGUEGOFGG-UHFFFAOYSA-N N-butylbenzenesulfonamide Chemical compound CCCCNS(=O)(=O)C1=CC=CC=C1 IPRJXAGUEGOFGG-UHFFFAOYSA-N 0.000 claims description 5
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical group [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 claims description 5
- 229920001296 polysiloxane Polymers 0.000 claims description 5
- 239000000843 powder Substances 0.000 claims description 5
- 229910000077 silane Inorganic materials 0.000 claims description 5
- JKIJEFPNVSHHEI-UHFFFAOYSA-N Phenol, 2,4-bis(1,1-dimethylethyl)-, phosphite (3:1) Chemical compound CC(C)(C)C1=CC(C(C)(C)C)=CC=C1OP(OC=1C(=CC(=CC=1)C(C)(C)C)C(C)(C)C)OC1=CC=C(C(C)(C)C)C=C1C(C)(C)C JKIJEFPNVSHHEI-UHFFFAOYSA-N 0.000 claims description 4
- 239000007983 Tris buffer Substances 0.000 claims description 4
- BGYHLZZASRKEJE-UHFFFAOYSA-N [3-[3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoyloxy]-2,2-bis[3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoyloxymethyl]propyl] 3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoate Chemical compound CC(C)(C)C1=C(O)C(C(C)(C)C)=CC(CCC(=O)OCC(COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)(COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)=C1 BGYHLZZASRKEJE-UHFFFAOYSA-N 0.000 claims description 4
- RKISUIUJZGSLEV-UHFFFAOYSA-N n-[2-(octadecanoylamino)ethyl]octadecanamide Chemical compound CCCCCCCCCCCCCCCCCC(=O)NCCNC(=O)CCCCCCCCCCCCCCCCC RKISUIUJZGSLEV-UHFFFAOYSA-N 0.000 claims description 4
- -1 pentaerythritol ester Chemical class 0.000 claims description 4
- OJMIONKXNSYLSR-UHFFFAOYSA-N phosphorous acid Chemical compound OP(O)O OJMIONKXNSYLSR-UHFFFAOYSA-N 0.000 claims description 4
- 238000001035 drying Methods 0.000 claims description 3
- 238000005469 granulation Methods 0.000 claims description 3
- 230000003179 granulation Effects 0.000 claims description 3
- 239000011229 interlayer Substances 0.000 claims description 3
- 239000011347 resin Substances 0.000 claims description 3
- 229920005989 resin Polymers 0.000 claims description 3
- KKCBUQHMOMHUOY-UHFFFAOYSA-N sodium oxide Chemical group [O-2].[Na+].[Na+] KKCBUQHMOMHUOY-UHFFFAOYSA-N 0.000 claims description 3
- 229910001948 sodium oxide Inorganic materials 0.000 claims description 3
- 238000003756 stirring Methods 0.000 claims description 3
- 238000001291 vacuum drying Methods 0.000 claims description 3
- 238000005516 engineering process Methods 0.000 abstract description 7
- 239000000203 mixture Substances 0.000 abstract description 6
- 239000002114 nanocomposite Substances 0.000 abstract description 6
- 230000004913 activation Effects 0.000 abstract description 4
- 238000001125 extrusion Methods 0.000 abstract description 3
- 229910052901 montmorillonite Inorganic materials 0.000 abstract description 3
- SOQBVABWOPYFQZ-UHFFFAOYSA-N oxygen(2-);titanium(4+) Chemical compound [O-2].[O-2].[Ti+4] SOQBVABWOPYFQZ-UHFFFAOYSA-N 0.000 abstract 2
- 239000000654 additive Substances 0.000 abstract 1
- 238000000465 moulding Methods 0.000 abstract 1
- 239000004952 Polyamide Substances 0.000 description 8
- 229920002647 polyamide Polymers 0.000 description 8
- 238000012545 processing Methods 0.000 description 4
- 230000003213 activating effect Effects 0.000 description 3
- 230000002687 intercalation Effects 0.000 description 3
- 238000009830 intercalation Methods 0.000 description 3
- 230000011218 segmentation Effects 0.000 description 3
- 229920006351 engineering plastic Polymers 0.000 description 2
- 239000003607 modifier Substances 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 229910010413 TiO 2 Inorganic materials 0.000 description 1
- 239000012752 auxiliary agent Substances 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- GUJOJGAPFQRJSV-UHFFFAOYSA-N dialuminum;dioxosilane;oxygen(2-);hydrate Chemical compound O.[O-2].[O-2].[O-2].[Al+3].[Al+3].O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O GUJOJGAPFQRJSV-UHFFFAOYSA-N 0.000 description 1
- JBKVHLHDHHXQEQ-UHFFFAOYSA-N epsilon-caprolactam Chemical group O=C1CCCCCN1 JBKVHLHDHHXQEQ-UHFFFAOYSA-N 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000005213 imbibition Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000005453 pelletization Methods 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/88—Thermal treatment of the stream of extruded material, e.g. cooling
- B29C48/918—Thermal treatment of the stream of extruded material, e.g. cooling characterized by differential heating or cooling
- B29C48/9185—Thermal treatment of the stream of extruded material, e.g. cooling characterized by differential heating or cooling in the direction of the stream of the 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
- B29C48/03—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
- B29C48/04—Particle-shaped
-
- 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
- B29C48/05—Filamentary, e.g. strands
-
- 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
- B29C48/92—Measuring, controlling or regulating
-
- 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
- B29C2948/92514—Pressure
-
- 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
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92819—Location or phase of control
- B29C2948/92857—Extrusion unit
- B29C2948/92876—Feeding, melting, plasticising or pumping zones, e.g. the melt itself
- B29C2948/92895—Barrel or housing
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention provides a method for preparing nanometer heat-insulation composite material, which mainly comprises nylon PA66, long alkali-free glass fiber yarn, short alkali-free glass fiber, nano-titanium dioxide (TiO2) and nano-montmorillonite; the method adopts high-temperature (150 DEG C) activation technology to activate the mixture of the nano-titanium dioxide (TiO2) and the nano-montmorillonite, adds small amount of nano-composite additives when in preparation, and adopts the long alkali-free glass fiber yarn, the short alkali-free glass fiber, a plasticizer and a coupling agent for stage addition; and as a special extrusion material, the composite material can achieve the effects of high tensile strength, high rigidity, stable molding, etc.
Description
Technical field
The present invention relates to the preparation method of heat-insulation composite material, particularly the preparation method of the nanometer heat-insulation composite material of forming by nylon PA66, nano titanium oxide and imvite etc.
Background technology
Nylon PA is one of important kind of polyamide, polyamide is a development kind the earliest in the engineering plastics, current production rate occupies first of the engineering plastics, and nylon PA66 uses one of maximum brand in the polyamide, it has the main feature in the polyamide kind, has the sub-performance of good power, self lubricity, rub resistance, hear resistance, weatherability and electrical property.Nylon PA66 is after glass strengthens, and its thermal change type temperature can reach more than 250 ℃.Water imbibition also is big characteristics of polyamide, influences the dimensional stability of product to a certain extent, has limited its application.
But nylon PA66 material price ratio is higher, especially makes base-material with it and produces nanometer heat-insulation composite material and heat insulating strip.
In the prior art, a kind of preparation method of polyamide nano-composite invents in Zhengzhou University, publication number CN1454935, a kind of nylon PA66, Nanometer Composite Material Of Montmorillonite And Its Preparation Method have been related to, its raw material comprises nylon PA66, imvite, intercalation ion-exchanger, modifier, and its preparation method is that imvite is made with nylon PA66 mix particles after intercalation ion-exchanger and modifier processing.The heat resisting temperature of organic modification montmonrillonite increases substantially in the invention, and the nano composite material combination property is more superior.
Research Institute of Nanjing Chemical Industry Group has a kind of preparation method's of polyamide nano-composite patent of invention, publication number CN1354201, adopt reactive extrusion technology, one step obtained polyamide nano-composite, after the imvite and caprolactam monomer mixed processing that the footpath intercalation processing is crossed, in double screw extruder, react and extrude, preparation high performance nylon PA66/ imvite novel nano composite.
More than two kinds of materials because of not containing glass fibre, heat distortion temperature does not reach far away extrudes the heat insulating strip requirement, and the thermal coefficient of expansion that aluminium alloy extrusions adapts requires to be 0.2-0.35K
-1
In nylon PA66 is material modified, adopt high temperature (150 ℃) activating technology activation nano titanium oxide (TiO
2) and the mixture of nano imvite, take the segmentation of length alkali-free glass fibre to add, plasticizer, coupling agent add or add once more with the measuring pump back segment, are used to extrude heat insulating strip, as a kind of special-purpose extruded material, do not relate in the prior art.
Summary of the invention
The objective of the invention is to overcome above deficiency, provide a kind of by nylon PA66, nano titanium oxide (TiO
2) and the preparation method of the nanometer heat-insulation composite material formed such as imvite, in nylon PA66 is material modified, adopt high temperature (150 ℃) activating technology activation nano titanium oxide (TiO
2) and the mixture of nano imvite silicate, take long and short alkali-free glass fibre segmentation to add, plasticizer, coupling agent add or add once more with the measuring pump back segment, are used to extrude heat insulating strip, as the heat insulation special-purpose extruded material of a kind of superpower height.
Purpose of the present invention realizes by following measure: a kind of preparation method of nanometer heat-insulation composite material mainly comprises nylon PA66, long alkali-free glass fibre yarn, short alkali-free glass fibre, nano titanium oxide (TiO
2), nano imvite, finish by following steps:
(1) get the raw materials ready: the raw material (kilogram) of preparing following ratio of quality and the number of copies:
Nylon PA66 particle 55-63.1
Nano titanium oxide (TiO
2) 2-3
Nano imvite 1-2
Long alkali-free glass fibre yarn 20
Short alkali-free glass fibre 5
Plasticizer 1-5
Coupling agent 1.0
Antioxidant 0.5
Lubricant 0.2-0.4
(2) nylon PA66 vacuum drying: above-mentioned nylon PA66 is joined in the vacuum drier with heat carrier conduction oil interlayer, vacuum is to be heated to 150 ℃ of constant temperature 10-15 hours under the condition of 0.09-0.098Mpa, vavuum pump is opened always therebetween, water content is controlled at and is cooled to 80 ℃ below 0.0005% with bottom discharge, and vacuum-packed back is standby.
(3) batching: by described proportioning nylon PA66 and the nano titanium oxide (TiO that drying is good
2), nano imvite, antioxidant, lubricant and 80% coupling agent stir in the high-speed mixer high speed and heat up, auxiliary electrical heat temperature raising to 150 ℃ continues 15 minutes, is cooled to 80 ℃ then with bottom discharge.
(4) above-mentioned proportion material being joined draw ratio is in 50: 1 the double screw extruder hopper, in temperature is one section 240 ℃, two sections 245 ℃, three sections 245 ℃, four sections 255 ℃, five sections 265 ℃, six sections 265 ℃, seven sections 255 ℃, eight sections 250 ℃, vacuum is under the condition of 0.04-0.095Mpa, extrude for engine speed 450-500 rev/min, long alkali-free glass fibre yarn enters from four sections, short alkali-free glass fibre adds from six sections with the side feeding machine, the coupling agent of plasticizer and residue 20% adds with microprocessor pump drive at five sections, cold drawn granulation, dry with vacuum drier again, be finished product, vavuum pump is opened always therebetween, and water content is controlled at below 0.0005%.
Above-mentioned nano imvite is a silicate; Plasticizer is the butyl benzene sulfonamide; Antioxidant is 1098 (N '-two-hexamethylene diamine); Lubricant is the silicone powder; Coupling agent is silane KH560.
The raw material (kilogram) that also adds following ratio of quality and the number of copies in the above-mentioned raw materials:
Antioxidant pentaerythritol ester (antioxidant 1010) 0.1-0.5
Antioxidant tris phosphite (antioxidant 168) 0.05-0.15
Lubricant ethylenebisstearamide (lubricant EBS) 0.1-0.3
The length index of above-mentioned short alkali-free glass fibre is 2-3mm, and filament diameter is 11 μ m; The index of described alkali-free is sodium oxide content＜0.2% of glass fibre.
Above-mentioned nylon PA66 is that relative viscosity is the resin of 2.7-2.8, and hot strength is more than 65Mpa.
Above-mentioned nano titanium oxide (TiO
2) particle diameter is 30-90nm, content＞99%; Nano imvite silicate particle diameter is 30-90nm, and content is＞98.5%.
Owing to adopt unique high temperature (150 ℃) activating technology activation nano-TiO
2And the mixture of nano imvite, the nano combined auxiliary agent that adds the pearlescent pigment that has unique optical properties on a small quantity adds in the nylon 66, and take roving glass fiber and short glass fiber segmentation to add, the processing technology that efficient composite coupler and plasticizer secondary measurement pump back segment add, in draw ratio is extruding pelletization in 1: 50 the double screw extruder, and extruding heat insulating strip is a kind of superpower high heat-insulation composite material.
(1) hot strength reaches more than the 130Mpa;
(2) bending strength is more than 180Mpa;
(3) notched Izod impact strength is at 20kj/m
2More than.
The specific embodiment
Embodiment 1:
1, a kind of preparation method of nanometer heat-insulation composite material is characterized in that mainly comprising nylon PA66, long alkali-free glass fibre yarn, short alkali-free glass fibre, nano titanium oxide (TiO
2), nano imvite, finish by following steps:
(1) get the raw materials ready: the raw material (kilogram) of preparing following ratio of quality and the number of copies:
Nylon PA66 particle 55
Nano titanium oxide (TiO
2) 3
Nano imvite silicate 1
Long alkali-free glass fibre yarn 20
Short alkali-free glass fibre 5
Butyl benzene sulfonamide 1
Silane KH560 1
Antioxidant 1,098 0.5
Silicone powder 0.2
The raw material (kilogram) that also adds following ratio of quality and the number of copies in the above-mentioned raw materials:
Antioxidant pentaerythritol ester (antioxidant 1010) 0.3
Antioxidant tris phosphite (antioxidant 168) 0.15
Lubricant ethylenebisstearamide (lubricant EBS) 0.1
(2) nylon PA66 vacuum drying: above-mentioned nylon PA66 is joined in the vacuum drier with heat carrier conduction oil interlayer, vacuum is to be heated to 150 ℃ of constant temperature 12 hours under the condition between the 0.09Mpa, vavuum pump is opened always therebetween, water content is controlled at is cooled to 80 ℃ below 0.0005% with bottom discharge, vacuum-packed back is standby.
(3) batching: by described proportioning nylon PA66 and the nano titanium oxide (TiO that drying is good
2), nano imvite, antioxidant, lubricant and 80% coupling agent stir in the high-speed mixer high speed and heat up, auxiliary electrical heat temperature raising to 150 ℃ continues 15 minutes, is cooled to 80 ℃ then with bottom discharge.
(4) above-mentioned proportion material being joined draw ratio is in 50: 1 the double screw extruder hopper, in temperature is one section 240 ℃, two sections 245 ℃, three sections 245 ℃, four sections 255 ℃, five sections 265 ℃, six sections 265 ℃, seven sections 255 ℃, eight sections 250 ℃, under the condition between the vacuum 0.065Mpa, engine speed is extruded for 450 rev/mins, long alkali-free glass fibre yarn enters from four sections, short alkali-free glass fibre adds from six sections with the side feeding machine, the coupling agent of plasticizer and residue 20% adds with microprocessor pump drive at five sections, coupling agent is that secondary adds, cold drawn granulation, with the vacuum drier oven dry, be finished product again.Vavuum pump is opened always around here, and water content is controlled at below 0.0005%.
Above-mentioned nano imvite is a silicate; Plasticizer is the butyl benzene sulfonamide; Antioxidant is 1098 (N '-two-hexamethylene diamine); Lubricant is the silicone powder; Coupling agent is silane KH560.
The length index of above-mentioned short alkali-free glass fibre is 2mm, and filament diameter is 11 μ m; The index of described alkali-free is the sodium oxide content 0.15% of glass fibre.
Above-mentioned nylon PA66 is that relative viscosity is 2.7 resin, and hot strength is at 68Mpa.
Above-mentioned nano titanium oxide (TiO
2) particle diameter is 60nm, content is 99.6%; Nano imvite silicate particle diameter is 60nm, and content is 99.5%.
Embodiment 2: this routine completing steps is as described in the embodiment 1, and wherein difference is that raw material comprises following ratio of quality and the number of copies composition (kilogram):
Nylon PA66 particle 63.1
Nano titanium oxide (TiO
2) 2
Nano imvite silicate 2
Long alkali-free glass fibre yarn 20
Short alkali-free glass fibre 5
Butyl benzene sulfonamide 5
Silane KH560 1
Antioxidant 1,098 0.5
Silicone powder 0.4
The raw material (kilogram) that also adds following ratio of quality and the number of copies in the above-mentioned raw materials:
Antioxidant pentaerythritol ester (antioxidant 1010) 0.5
Antioxidant tris phosphite (antioxidant 168) 0.05
Lubricant ethylenebisstearamide (lubricant EBS) 0.3.
Claims (6)
1, a kind of preparation method of nanometer heat-insulation composite material is characterized in that comprising nylon PA66, long alkali-free glass fibre yarn, short alkali-free glass fibre, nano titanium oxide (TiO
2), nano imvite, finish by following steps:
(1) get the raw materials ready: the raw material (kilogram) of preparing following ratio of quality and the number of copies:
Nylon PA66 particle 55-63.1
Nano titanium oxide (TiO
2) 2-3
Nano imvite 1-2
Long alkali-free glass fibre yarn 20
Short alkali-free glass fibre 5
Plasticizer 1-5
Coupling agent 1
Antioxidant 0.5
Lubricant 0.2-0.4
(2) nylon PA66 vacuum drying: above-mentioned nylon PA66 is joined in the vacuum drier with heat carrier conduction oil interlayer, be to be heated to 150 ℃ under the condition of 0.09-0.098Mpa in vacuum, constant temperature 10-15 hour, water content is controlled at below 0.0005%, be cooled to 80 ℃ with bottom discharge, vacuum-packed back is standby;
(3) batching: by described proportioning nylon PA66 and the nano titanium oxide (TiO that drying is good
2), nano imvite, antioxidant, lubricant and 80% coupling agent stir in the high-speed mixer high speed and heat up, auxiliary electrical heat temperature raising to 150 ℃ continues 15 minutes, is cooled to 80 ℃ then with bottom discharge;
(4) above-mentioned proportion material is joined in the double screw extruder hopper, under temperature is one section 240 ℃, two sections 245 ℃, three sections 245 ℃, four sections 255 ℃, five sections 265 ℃, six sections 265 ℃, seven sections 255 ℃, eight sections 250 ℃, the condition of vacuum 0.04-0.095Mpa, extrude for engine speed 450-500 rev/min, long alkali-free glass fibre yarn enters from four sections, short alkali-free glass fibre adds from six sections with the side feeding machine, the coupling agent of plasticizer and residue 20% adds with microprocessor pump drive at five sections, cold drawn granulation, with the vacuum drier oven dry, be finished product again.
2, the preparation method of nanometer heat-insulation composite material according to claim 1 is characterized in that described nano imvite is a silicate; Plasticizer is the butyl benzene sulfonamide; Antioxidant is 1098 (N '-two-hexamethylene diamine); Lubricant is the silicone powder; Coupling agent is silane KH560.
3, the preparation method of nanometer heat-insulation composite material according to claim 1 is characterized in that also adding the raw material (kilogram) of following ratio of quality and the number of copies:
Antioxidant pentaerythritol ester (antioxidant 1010) 0.1-0.5
Antioxidant tris phosphite (antioxidant 168) 0.05-0.15
Lubricant ethylenebisstearamide (lubricant EBS) 0.1-0.3.
4, the preparation method of nanometer heat-insulation composite material according to claim 1, the length index that it is characterized in that described short alkali-free glass fibre is 2-3mm, filament diameter is 11 μ m; The index of described alkali-free is sodium oxide content＜0.2% of glass fibre.
5, the preparation method of nanometer heat-insulation composite material according to claim 1 is characterized in that described nylon PA66 is that relative viscosity is the resin of 2.7-2.8, and hot strength is more than 65Mpa.
6, the preparation method of nanometer heat-insulation composite material according to claim 1 is characterized in that described nano titanium oxide (TiO
2) particle diameter is 30-90nm, content＞99%; Nano imvite silicate particle diameter is 30-90nm, and content is＞98.5%.
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Effective date of registration: 20171030 Address after: 053400 Wuyi County in Hebei province Wu Road No. 13 Patentee after: Hengshui Jinlun plastic Polytron Technologies Inc Address before: 053400 Wuyi County in Hebei province Wu Road No. 13 Co-patentee before: Zhao Jianguo Patentee before: Jin Zhushan |