Classifications

• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
  • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
  • F16L9/00—Rigid pipes
  • F16L9/12—Rigid pipes of plastics with or without reinforcement
  • F16L9/127—Rigid pipes of plastics with or without reinforcement the walls consisting of a single layer
  • F16L9/128—Reinforced pipes
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
  • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
  • B65D85/00—Containers, packaging elements or packages, specially adapted for particular articles or materials
  • B65D85/70—Containers, packaging elements or packages, specially adapted for particular articles or materials for materials not otherwise provided for
  • B65D85/84—Containers, packaging elements or packages, specially adapted for particular articles or materials for materials not otherwise provided for for corrosive chemicals
• • 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
  • B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
  • B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
• • 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
  • B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
  • B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
  • B29C70/06—Fibrous reinforcements only
• • C—CHEMISTRY; METALLURGY
  • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
  • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
  • C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
  • C08J5/24—Impregnating materials with prepolymers which can be polymerised in situ, e.g. manufacture of prepregs
  • C08J5/246—Impregnating materials with prepolymers which can be polymerised in situ, e.g. manufacture of prepregs using polymer based synthetic fibres
• • C—CHEMISTRY; METALLURGY
  • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
  • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
  • C08L63/00—Compositions of epoxy resins; Compositions of derivatives of epoxy resins
• • C—CHEMISTRY; METALLURGY
  • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
  • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
  • C08L71/00—Compositions of polyethers obtained by reactions forming an ether link in the main chain; Compositions of derivatives of such polymers
• • C—CHEMISTRY; METALLURGY
  • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
  • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
  • C08L81/00—Compositions of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing sulfur with or without nitrogen, oxygen or carbon only; Compositions of polysulfones; Compositions of derivatives of such polymers
  • C08L81/04—Polysulfides
• • 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
  • B29K2063/00—Use of EP, i.e. epoxy resins or derivatives thereof, 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
  • B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
• • 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
  • B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
  • B29K2105/0005—Condition, form or state of moulded material or of the material to be shaped containing compounding ingredients
  • B29K2105/0044—Stabilisers, e.g. against oxydation, light or heat
• • 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
  • B29K2281/00—Use of polymers having sulfur, with or without nitrogen, oxygen or carbon only, in the main chain, as reinforcement
  • B29K2281/04—Polysulfides, e.g. PPS, i.e. polyphenylene sulfide, or derivatives thereof
• • 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
  • B29K2995/00—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds
  • B29K2995/0037—Other properties
  • B29K2995/0058—Inert to chemical degradation
• • 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
  • B29L2023/00—Tubular articles
• • 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
• • 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
  • B29L2031/712—Containers; Packaging elements or accessories, Packages
• • C—CHEMISTRY; METALLURGY
  • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
  • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
  • C08J2361/00—Characterised by the use of condensation polymers of aldehydes or ketones; Derivatives of such polymers
• • C—CHEMISTRY; METALLURGY
  • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
  • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
  • C08J2363/00—Characterised by the use of epoxy resins; Derivatives of epoxy resins
• • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
  • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
  • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
  • Y10T428/00—Stock material or miscellaneous articles
  • Y10T428/13—Hollow or container type article [e.g., tube, vase, etc.]
  • Y10T428/1352—Polymer or resin containing [i.e., natural or synthetic]
  • Y10T428/1362—Textile, fabric, cloth, or pile containing [e.g., web, net, woven, knitted, mesh, nonwoven, matted, etc.]

Definitions

• the invention relates to a fiber-reinforced plastic structure
• Plastic structure are made, and their use. Such plastic structures are materials that consist of Verstärkungsfasem, which are embedded in a plastic matrix. These are found in a variety of applications in the form of short fiber reinforced,
• the subgroup of glass fiber reinforced plastics is a composite of a plastic, such as polyester resin, epoxy or polyamide, and glass fibers.
• a plastic such as polyester resin, epoxy or polyamide
• Glass fiber reinforced plastics are standard materials in the industry. Tubes of this type are standardized in the DIN and commercially available.
• thermoplastic material such as e.g. Polypropylene
• This chemical protective layer is present on those surfaces which come into contact with the alkaline solutions and is intended to protect the glass fiber reinforced plastics. This additional protective layer is required above all when the alkaline solutions have temperatures of> 40 ° C and thus their corrosive effect is enhanced and surfaces are attacked and destroyed.
• Lye concentrations can be dispensed with a thermoplastic chemical protective layer and this is instead produced from the plastic matrix itself.
• the disadvantage of the glass fiber reinforced plastics known in the prior art is that if the chemical protection layer is damaged, the glass fibers are exposed and are exposed directly to a chemical attack by alkali.
• Glass is a chemically highly resistant material, which is not laugebest depict and massively attacked by alkali and destroyed. By destroying the reinforcing fiber of the entire composite material is attacked, because the mechanical strength of the composite is achieved by the reinforcing fibers. The omission of the mechanical strength leads to the failure of the Material, since the pressure and temperature load, which prevails, for example, when operating an industrial plant, no resistance is opposed.
• a glass fiber reinforced plastic pipe according to the prior art is known for example from DE 10 2008 033 577 A1.
• this document teaches a plastic tube which has improved properties in terms of tightness, rigidity, dimensional stability and abrasion in comparison to the prior art.
• the pipe wall is formed by at least one in the spin and / or
• Centrifugal casting method produced spin coating and at least one winding layer produced in the winding process. Although such pipes have improved properties, but are very expensive to produce.
• Object of the present invention is therefore to provide an alternative composite material in which both the matrix material and the fiber material at temperatures> 60 ° C is resistant to alkaline media, and thus reduces the likelihood of the occurrence of the failure described above becomes.
• the invention has also set itself the task of providing appropriate means and uses of the composite material.
• the object is achieved by a composite comprising reinforcing fibers and a surrounding matrix of a matrix material, wherein the matrix material contains an epoxy resin and / or a furan resin and the reinforcing fibers contain polyphenylene sulfide.
• the epoxy resin reacts with a crosslinking partner, generally referred to as a hardener, to a thermoset composite material.
• a crosslinking partner generally referred to as a hardener
• the EP resin is based on different approaches, preferred for the use used are a bisphenol A or novolak base.
• the hardener systems are preferably based on amine systems, using both aliphatic and aromatic amines. However, anhydride hardeners can also be used.
• the composite material additionally includes the additives that influence the composite properties.
• additives that influence the composite properties. These are selected from the group of stabilizers adhesion promoters and lubricants and are known in the art from the prior art. These modifiers are based predominantly on aliphatic or aromatic glycidyl ethers. However, aliphatic epoxy ester resins or polyepoxide resins are also used to adjust the properties.
• the accelerators are imidazole-based systems.
• the composite preferably comprises 0.05 to 35 parts by weight of additives. These can either be in the matrix material and / or in the
• the matrix material comprises 95 to 100% by weight of resin and 0 to 5% by weight of additives.
• Fiber material advantageously comprises 65 to 100% by weight of polyphenylene sulfide and 0 to 35% by weight of additives.
• the composite material according to the invention is resistant to> 20% - concentrated alkaline media, wherein it is the alkaline medium in particular to> 20% NaOH. It goes without saying that the composite also has resistance to other chemicals.
• the composite of the present invention is resistant to NaOH and other alkaline media at temperatures> 60 ° C.
• the present invention also includes means for receiving and / or transporting alkaline liquids comprising the invention
• the pipes and containers are made by a method known to those skilled in the art from the composite material.
• the known methods are in detail:
• Winding process In the winding process, rotating (winding mandrel) and reciprocating (support) movements are combined with each other in order to deposit the resin-impregnated fibers on the mandrel after a certain winding pattern.
• This process can be carried out both mechanized and manually, with different fiber structures, such as e.g. Continuous filaments such as rovings, fleeces of short fibers, random fiber mats of short and long fibers, woven or knitted fabrics can be used
• Braiding process In the braiding process, the reinforcing fibers of a slidable braiding machine with a rotating braiding head on one
• Matrix resin are impregnated.
• the fiber reinforcement in the form of, for example, nonwovens or fabrics is previously inserted or together with the resin and any additives through the lance, a mobile loading arm; introduced as short fiber in the centrifugal mold.
• a mobile loading arm introduced as short fiber in the centrifugal mold.
• the composite material according to the invention finds above all things
• Piping and / or the containers are brought into contact with alkaline media. Even at elevated temperatures of> 60 ° C of alkaline media, the piping and tanks are used.
• the composite material In a preferred use of the composite material, it is used in devices of an electrolysis process in which alkaline media are produced and / or supplied.
• the use is conceivable especially in inflows and outflows, as well as in the reaction chambers of electrolysis cells.
• Composite material will be explained below. These are, for example, devices of a leaching concentration process in which the concentrations of alkaline media are changed or devices of a process of metal extraction in which alkaline media are supplied and / or used, this advantageously being an aluminum extraction from bauxite. Furthermore, the invention relates generally to apparatuses of methods known in the art in which alkaline media are supplied and / or used.
• the pipe materials used in the experiment are fiber-reinforced plastics.
• the matrix materials are epoxy, vinyl ester resins and other resin types that differ in their structure.
• fiber materials are different glass and polymer fibers, e.g. AR glass, polyamide fiber,
• Polyphenylene sulfide fibers provided. Test specimens made of pure resin and fibers are supplied by commercial manufacturers. The square test specimens have 30 mm edge length. The individual fibers (without resin) are used as commercially available.
• test specimens and fibers are stored in 32 wt% NaOH solution in PFA cans with screw caps in a drying oven at 90 ° C for 10 days, to determine a basic stability of the samples used. After these 10 days, the temperature was raised to 250 ° C. The aqueous 32% by weight NaOH solution was completely evaporated to dry 100% NaOH. As a result, all specimens were exposed to the concentration range of 32% to 100% at a temperature of up to 250 ° C.
• the materials according to the invention ie the matrix materials epoxy resins and furan resins, as well as the reinforcing fibers of polyphenylene sulfide have withstood the extreme conditions of the experimental setup and are thus perfectly suited to the starting task.

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• Chemical & Material Sciences (AREA)
• Engineering & Computer Science (AREA)
• Health & Medical Sciences (AREA)
• Chemical Kinetics & Catalysis (AREA)
• Organic Chemistry (AREA)
• Medicinal Chemistry (AREA)
• Polymers & Plastics (AREA)
• Materials Engineering (AREA)
• Mechanical Engineering (AREA)
• Composite Materials (AREA)
• Manufacturing & Machinery (AREA)
• General Engineering & Computer Science (AREA)
• General Chemical & Material Sciences (AREA)
• General Health & Medical Sciences (AREA)
• Toxicology (AREA)
• Reinforced Plastic Materials (AREA)
• Compositions Of Macromolecular Compounds (AREA)
• Moulding By Coating Moulds (AREA)
• Rigid Pipes And Flexible Pipes (AREA)
• Laminated Bodies (AREA)

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• 2011
  • 2011-02-07 DE DE102011010558A patent/DE102011010558A1/de not_active Withdrawn
• 2012
  • 2012-02-04 CN CN2012800048279A patent/CN103370566A/zh active Pending
  • 2012-02-04 RU RU2013134604/05A patent/RU2591987C2/ru not_active IP Right Cessation
  • 2012-02-04 EP EP12707224.7A patent/EP2673538A1/de not_active Withdrawn
  • 2012-02-04 CA CA2823067A patent/CA2823067A1/en not_active Abandoned
  • 2012-02-04 US US13/983,318 patent/US20140295117A1/en not_active Abandoned
  • 2012-02-04 BR BR112013019110A patent/BR112013019110A2/pt not_active Application Discontinuation
  • 2012-02-04 WO PCT/EP2012/000507 patent/WO2012107191A1/de not_active Ceased
  • 2012-02-04 KR KR1020137023560A patent/KR20140021555A/ko not_active Ceased
  • 2012-02-04 JP JP2013552140A patent/JP5951643B2/ja not_active Expired - Fee Related

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