CN105623160A - High-temperature-resistant polytetrafluoroethylene film and production process therefor - Google Patents

High-temperature-resistant polytetrafluoroethylene film and production process therefor Download PDF

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Publication number
CN105623160A
CN105623160A CN201610182450.6A CN201610182450A CN105623160A CN 105623160 A CN105623160 A CN 105623160A CN 201610182450 A CN201610182450 A CN 201610182450A CN 105623160 A CN105623160 A CN 105623160A
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mixture
parts
weight ratio
teflon film
high temperature
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夏运海
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DONGGUAN ASTEED ELECTRONIC Co Ltd
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DONGGUAN ASTEED ELECTRONIC Co Ltd
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    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L27/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers
    • C08L27/02—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment
    • C08L27/12—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment containing fluorine atoms
    • C08L27/18—Homopolymers or copolymers or tetrafluoroethene
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D7/00—Producing flat articles, e.g. films or sheets
    • B29D7/01—Films or sheets
    • 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
    • C08J5/18—Manufacture of films or sheets
    • 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
    • C08J7/00—Chemical treatment or coating of shaped articles made of macromolecular substances
    • C08J7/04—Coating
    • C08J7/0427—Coating with only one layer of a composition containing a polymer binder
    • 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
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/02—Elements
    • C08K3/04—Carbon
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D175/00—Coating compositions based on polyureas or polyurethanes; Coating compositions based on derivatives of such polymers
    • C09D175/04—Polyurethanes
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
    • C09D7/20—Diluents or solvents
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
    • C09D7/40—Additives
    • C09D7/60—Additives non-macromolecular
    • C09D7/61—Additives non-macromolecular inorganic
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
    • C09D7/40—Additives
    • C09D7/60—Additives non-macromolecular
    • C09D7/63—Additives non-macromolecular organic
    • 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
    • B29K2995/0012—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds having particular thermal properties
    • B29K2995/0016—Non-flammable or resistant to heat
    • 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
    • C08J2327/00—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers
    • C08J2327/02—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers not modified by chemical after-treatment
    • C08J2327/12—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers not modified by chemical after-treatment containing fluorine atoms
    • C08J2327/18—Homopolymers or copolymers of tetrafluoroethylene
    • 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
    • C08J2475/00—Characterised by the use of polyureas or polyurethanes; Derivatives of such polymers
    • C08J2475/04—Polyurethanes
    • 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
    • C08K2201/00—Specific properties of additives
    • C08K2201/014—Additives containing two or more different additives of the same subgroup in C08K
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2201/00—Properties
    • C08L2201/08—Stabilised against heat, light or radiation or oxydation
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2203/00—Applications
    • C08L2203/16—Applications used for films
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00—Polymer mixtures characterised by other features
    • C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00—Polymer mixtures characterised by other features
    • C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
    • C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend

Abstract

The invention relates to the technical field of polytetrafluoroethylene films, in particular to a high-temperature-resistant polytetrafluoroethylene film and a production process therefor. The high-temperature-resistant polytetrafluoroethylene film comprises the following raw materials in parts by weight: 80-120 parts of polytetrafluoroethylene, 10-20 parts of triethanolamine, 10-20 parts of a filler, 2-6 parts of glycerin monostearate, 2-6 parts of polyvinylidene fluoride, 1-3 parts of calcium stearate, 4-8 parts of inorganic salt, 2-6 parts of glass fiber cloth, 2-4 parts of a film former and 0.5-1.5 parts of a lubricant. The high-temperature-resistant polytetrafluoroethylene film is good in high temperature resistance, good in flatness, uniform in heat conduction, high in stability and excellent in comprehensive performance, serves as a buffer insulation material, and can be suitable for large, medium and small-sized liquid crystal modules.

Description

A kind of high temperature resistant Teflon film and manufacture craft thereof
Technical field
The present invention relates to Teflon thin film technique field, it is specifically related to a kind of high temperature resistant Teflon film and manufacture craft thereof.
Background technology
Teflon (chemical name tetrafluoroethylene, English abbreviation PFFE) has high-low temperature resistant, the features such as not burning, is well insulation and a fire-retardant material. The resistance to elevated temperatures of existing Teflon film is poor, limits its application in liquid crystal module field to a certain extent, therefore, it is necessary to a kind of high durable Teflon film of research and development.
Summary of the invention
The shortcoming and defect existed to overcome in prior art, it is an object of the invention to provide a kind of high temperature resistant Teflon film, this Teflon film resistance to elevated temperatures is good, and planeness is good, heat conduction is even, good stability, excellent combination property, as buffer compartment hot material, applicable in large, medium and small size liquid crystal module.
Another object of the present invention is to provide the manufacture craft of a kind of high temperature resistant Teflon film, this process for making is simple, and convenient operation and control, steady quality, production efficiency height, production cost is low, can large-scale industrial production.
The object of the present invention is achieved through the following technical solutions: a kind of high temperature resistant Teflon film, comprises the raw material of following weight part:
Tetrafluoroethylene 80-120 part
Trolamine 10-20 part
Weighting agent 10-20 part
Glyceryl monostearate 2-6 part
Poly(vinylidene fluoride) 2-6 part
Calcium stearate 1-3 part
Inorganic salt 4-8 part
Glasscloth 2-6 part
Membrane-forming agent 2-4 part
Lubricant 0.5-1.5 part.
The high temperature resistant Teflon film of the present invention is by adopting tetrafluoroethylene, trolamine, weighting agent, glyceryl monostearate, poly(vinylidene fluoride), calcium stearate, inorganic salt, glasscloth, membrane-forming agent and lubricant as raw material, and strictly control the weight proportion of each raw material, obtained Teflon film resistance to elevated temperatures is good, and planeness is good, heat conduction is even, good stability, excellent combination property, as buffer compartment hot material, applicable in large, medium and small size liquid crystal module.
Preferably, the mixture that described weighting agent is made up of with weight ratio 2-4:1 titanium dioxide two chromium and polyphenylene sulfide.
The present invention is by adopting titanium dioxide two chromium and polyphenylene sulfide as the composite use of weighting agent, and to control its weight ratio be 2-4:1, and obtained Teflon film wear resistance is good, it may also be useful to the life-span is long, high durable.
Preferably, the mixture that described inorganic salt are made up of with weight ratio 0.5-1.5:1 Repone K and calcium carbonate.
The application is by adopting Repone K and calcium carbonate as the composite use of inorganic salt, and to control its weight ratio be 0.5-1.5:1, and obtained Teflon film has high-wearing feature and high-weatherability, it may also be useful to the life-span is long, high durable.
Preferably, the mixture that described membrane-forming agent is made up of with weight ratio 1:0.8-1.2:1.5-2.5:2.5-3.5 urethane resin, polyvinyl alcohol, Lauryl Alcohol ester and chitosan.
The present invention is by adopting urethane resin, polyvinyl alcohol, Lauryl Alcohol ester and chitosan as the composite use of membrane-forming agent, and to control its weight ratio be 1:0.8-1.2:1.5-2.5:2.5-3.5, its good film-forming property, obtained Teflon film planeness is good, and heat conduction is even.
Preferably, the mixture that described lubricant is made up of with weight ratio 1:1.4-2.2 whiteruss and sherwood oil.
The present invention is by adopting whiteruss and sherwood oil as the composite use of lubricant, and to control its weight ratio be 1:1.4-2.2, and its good processability, obtained Teflon film resistance to elevated temperatures is good, and planeness is good, and heat conduction is even.
Preferably, also comprise additive 4-8 part, the mixture that described additive is made up of with weight ratio 0.5-1.5:2-4:1 ester based quaternary ammonium salt, alkylamine and imidazoline salt ethyl acrylamide salt.
By adopting, ester based quaternary ammonium salt, alkylamine and imidazoline salt ethyl acrylamide salt use as additive compound in the present invention, and to control its weight ratio be 0.5-1.5:2-4:1, and obtained Teflon film antistatic effect is good, good stability, excellent combination property.
Preferably, auxiliary agent 1-5 part is also comprised, the mixture that described auxiliary agent is made up of with weight ratio 1:1.4-2.2:0.8-1.2 coupling agent, defoamer and flow agent.
By adopting, coupling agent, defoamer and flow agent use as additive compound in the present invention, and to control its weight ratio be 1:1.4-2.2:0.8-1.2, and obtained Teflon film heat conduction is even, good stability, excellent combination property.
The mixture that described coupling agent is made up of with weight 1:0.8-1.2 titanate coupling agent and silane coupling agent.
The present invention is by adopting titanate coupling agent and silane coupling agent as the composite use of coupling agent, and to control its weight ratio be 1:0.8-1.2, and its coupling effect is good, and obtained Teflon film resistance to elevated temperatures is good, and planeness is good.
The mixture that described defoamer is made up of with weight ratio 1:1.6-2.4 tributyl phosphate and polydimethylsiloxane.
The present invention is by adopting tributyl phosphate and polydimethylsiloxane as the composite use of defoamer, and to control its weight ratio be 1:1.6-2.4, and its defoaming effect is good, and obtained Teflon film resistance to elevated temperatures is good, and planeness is good, and heat conduction is even.
Described flow agent is organosilicon flow agent.
The present invention is by adopting organosilicon flow agent, it is possible to improve the surface tension of film, reaches surface tension balance, and obtained Teflon film resistance to elevated temperatures is good, and planeness is good, and heat conduction is even, good stability.
Preferably, the surface of the durable Teflon film of described height is coated with one layer of absorption coating, and described absorption coating comprises the raw material of following weight part:
Porous carbon particle 5-15 part
Porous resin 30-50 part
Solvent 40-80 part;
Wherein, porous carbon particle is uniformly distributed in the surface of porous resin.
The absorption coating of the present invention is by adopting porous carbon particle, porous resin and solvent as raw material, and strictly controls its weight proportion, obtained Teflon film has that ventilative, moisture-inhibiting, absorption, suction are smelly, damping, water-fastness and anti-layer stripping function.
Preferably, described porous carbon particle by particle diameter 0.1-1.0 ��m active carbon particle, the mixture that forms with weight ratio 2-4:1.5-2.5:1 of carbon black particle and graphite particle.
The present invention by adopt particle diameter 0.1-1.0 ��m active carbon particle, carbon black particle and graphite particle be as the composite use of porous carbon particle, and to control its weight ratio be 2-4:1.5-2.5:1, obtained Teflon film has that ventilative, moisture-inhibiting, absorption, suction are smelly, damping, water-fastness and anti-layer stripping function.
The mixture that described porous resin is made up of with weight ratio 1:0.8-1.2 polyurethane and manthanoate.
The present invention is by adopting polyurethane and manthanoate as the composite use of porous resin, and to control its weight ratio be 1:0.8-1.2, obtained Teflon film has that ventilative, moisture-inhibiting, absorption, suction are smelly, damping, water-fastness and anti-layer stripping function.
The mixture that described solvent is made up of with volume ratio 0.5-1.5:1.4-2.2:4-8 isopropyl acetone, dimethyl formamide and water.
By adopting, isopropyl acetone, dimethyl formamide and water use as solvent complex in the present invention, and to control its weight ratio be 0.5-1.5:1.4-2.2:4-8, its solvability is good, obtained Teflon film has that ventilative, moisture-inhibiting, absorption, suction are smelly, damping, water-fastness and anti-layer stripping function.
A preparation method for high temperature resistant Teflon film, comprises the steps:
(1) batch mixing: take each raw material by weight and mix, obtain blend;
(2) shaping: by mixed blend through compression molding, obtain main base;
(3) sinter: the main base after shaping is sintered 24-48h at 360-380 DEG C of temperature;
(4) film forming: by the main base calendering film forming after sintering, obtained high temperature resistant Teflon film.
The useful effect of the present invention is: the Teflon film resistance to elevated temperatures of the present invention is good, and planeness is good, and heat conduction is even, good stability, and excellent combination property is as buffer compartment hot material, applicable in large, medium and small size liquid crystal module.
The process for making of the present invention is simple, and convenient operation and control, steady quality, production efficiency height, production cost is low, can large-scale industrial production.
Embodiment
For the ease of the understanding of those skilled in the art, below in conjunction with embodiment, the present invention is further illustrated, and the content that enforcement mode is mentioned is limitation of the invention not.
Embodiment 1
A kind of high temperature resistant Teflon film, comprises the raw material of following weight part:
Tetrafluoroethylene 80 parts
Trolamine 10 parts
Weighting agent 10 parts
Glyceryl monostearate 2 parts
Poly(vinylidene fluoride) 2 parts
Calcium stearate 1 part
4 parts, inorganic salt
Glasscloth 2 parts
Membrane-forming agent 2 parts
Lubricant 0.5 part.
The mixture that described weighting agent is made up of with weight ratio 2:1 titanium dioxide two chromium and polyphenylene sulfide.
The mixture that described inorganic salt are made up of with weight ratio 0.5:1 Repone K and calcium carbonate.
The mixture that described membrane-forming agent is made up of with weight ratio 1:0.8:1.5:2.5 urethane resin, polyvinyl alcohol, Lauryl Alcohol ester and chitosan.
The mixture that described lubricant is made up of with weight ratio 1:1.4 whiteruss and sherwood oil.
Also comprise additive 4 parts, the mixture that described additive is made up of with weight ratio 0.5:2:1 ester based quaternary ammonium salt, alkylamine and imidazoline salt ethyl acrylamide salt.
Also comprise auxiliary agent 1 part, the mixture that described auxiliary agent is made up of with weight ratio 1:1.4:0.8 coupling agent, defoamer and flow agent; The mixture that described coupling agent is made up of with weight 1:0.8 titanate coupling agent and silane coupling agent; The mixture that described defoamer is made up of with weight ratio 1:1.6 tributyl phosphate and polydimethylsiloxane; Described flow agent is organosilicon flow agent.
The surface of the durable Teflon film of described height is coated with a coating, and described coating comprises the raw material of following weight part:
5 parts, porous carbon particle
Porous resin 30 parts
Solvent 40 parts;
Wherein, porous carbon particle is uniformly distributed in the surface of porous resin.
Described porous carbon particle by particle diameter 0.1 ��m active carbon particle, the mixture that forms with weight ratio 2:1.5:1 of carbon black particle and graphite particle; The mixture that described porous resin is made up of with weight ratio 1:0.8 polyurethane and manthanoate; The mixture that described solvent is made up of with volume ratio 0.5:1.4:4 isopropyl acetone, dimethyl formamide and water.
A preparation method for high temperature resistant Teflon film, comprises the steps:
(1) batch mixing: take each raw material by weight and mix, obtain blend;
(2) shaping: by mixed blend through compression molding, obtain main base;
(3) sinter: the main base after shaping is sintered 48h at 360 DEG C of temperature;
(4) film forming: by the main base calendering film forming after sintering, obtained high temperature resistant Teflon film.
Embodiment 2
A kind of high temperature resistant Teflon film, comprises the raw material of following weight part:
Tetrafluoroethylene 90 parts
Trolamine 12 parts
Weighting agent 12 parts
Glyceryl monostearate 3 parts
Poly(vinylidene fluoride) 3 parts
Calcium stearate 1.5 parts
5 parts, inorganic salt
Glasscloth 3 parts
Membrane-forming agent 2.5 parts
Lubricant 0.8 part.
The mixture that described weighting agent is made up of with weight ratio 2.5:1 titanium dioxide two chromium and polyphenylene sulfide.
The mixture that described inorganic salt are made up of with weight ratio 0.8:1 Repone K and calcium carbonate.
The mixture that described membrane-forming agent is made up of with weight ratio 1:0.9:1.8:2.8 urethane resin, polyvinyl alcohol, Lauryl Alcohol ester and chitosan.
The mixture that described lubricant is made up of with weight ratio 1:1.6 whiteruss and sherwood oil.
Also comprise additive 5 parts, the mixture that described additive is made up of with weight ratio 0.8:2.5:1 ester based quaternary ammonium salt, alkylamine and imidazoline salt ethyl acrylamide salt.
Also comprise auxiliary agent 2 parts, the mixture that described auxiliary agent is made up of with weight ratio 1:1.6:0.9 coupling agent, defoamer and flow agent; The mixture that described coupling agent is made up of with weight 1:0.9 titanate coupling agent and silane coupling agent; The mixture that described defoamer is made up of with weight ratio 1:1.8 tributyl phosphate and polydimethylsiloxane; Described flow agent is organosilicon flow agent.
The surface of the durable Teflon film of described height is coated with a coating, and described coating comprises the raw material of following weight part:
8 parts, porous carbon particle
Porous resin 35 parts
Solvent 50 parts;
Wherein, porous carbon particle is uniformly distributed in the surface of porous resin.
Described porous carbon particle by particle diameter 0.3 ��m active carbon particle, the mixture that forms with weight ratio 2.5:1.8:1 of carbon black particle and graphite particle; The mixture that described porous resin is made up of with weight ratio 1:0.9 polyurethane and manthanoate; The mixture that described solvent is made up of with volume ratio 0.8:1.6:5 isopropyl acetone, dimethyl formamide and water.
A preparation method for high temperature resistant Teflon film, comprises the steps:
(1) batch mixing: take each raw material by weight and mix, obtain blend;
(2) shaping: by mixed blend through compression molding, obtain main base;
(3) sinter: the main base after shaping is sintered 42h at 366 DEG C of temperature;
(4) film forming: by the main base calendering film forming after sintering, obtained high temperature resistant Teflon film. Embodiment 3
A kind of high temperature resistant Teflon film, comprises the raw material of following weight part:
Tetrafluoroethylene 100 parts
Trolamine 15 parts
Weighting agent 15 parts
Glyceryl monostearate 4 parts
Poly(vinylidene fluoride) 4 parts
Calcium stearate 2 parts
6 parts, inorganic salt
Glasscloth 4 parts
Membrane-forming agent 3 parts
Lubricant 1 part.
The mixture that described weighting agent is made up of with weight ratio 3:1 titanium dioxide two chromium and polyphenylene sulfide.
The mixture that described inorganic salt are made up of with weight ratio 1:1 Repone K and calcium carbonate.
The mixture that described membrane-forming agent is made up of with weight ratio 1:1:2:3 urethane resin, polyvinyl alcohol, Lauryl Alcohol ester and chitosan.
The mixture that described lubricant is made up of with weight ratio 1:1.8 whiteruss and sherwood oil.
Also comprise additive 6 parts, the mixture that described additive is made up of with weight ratio 1:3:1 ester based quaternary ammonium salt, alkylamine and imidazoline salt ethyl acrylamide salt.
Also comprise auxiliary agent 3 parts, the mixture that described auxiliary agent is made up of with weight ratio 1:1.8:1 coupling agent, defoamer and flow agent; The mixture that described coupling agent is made up of with weight 1:1 titanate coupling agent and silane coupling agent; The mixture that described defoamer is made up of with weight ratio 1:2 tributyl phosphate and polydimethylsiloxane; Described flow agent is organosilicon flow agent.
The surface of the durable Teflon film of described height is coated with a coating, and described coating comprises the raw material of following weight part:
10 parts, porous carbon particle
Porous resin 40 parts
Solvent 60 parts;
Wherein, porous carbon particle is uniformly distributed in the surface of porous resin.
Described porous carbon particle by particle diameter 0.5 ��m active carbon particle, the mixture that forms with weight ratio 3:2:1 of carbon black particle and graphite particle; The mixture that described porous resin is made up of with weight ratio 1:1 polyurethane and manthanoate; The mixture that described solvent is made up of with volume ratio 1:1.8:6 isopropyl acetone, dimethyl formamide and water.
A preparation method for high temperature resistant Teflon film, comprises the steps:
(1) batch mixing: take each raw material by weight and mix, obtain blend;
(2) shaping: by mixed blend through compression molding, obtain main base;
(3) sinter: the main base after shaping is sintered 36h at 370 DEG C of temperature;
(4) film forming: by the main base calendering film forming after sintering, obtained high temperature resistant Teflon film.
Embodiment 4
A kind of high temperature resistant Teflon film, comprises the raw material of following weight part:
Tetrafluoroethylene 110 parts
Trolamine 18 parts
Weighting agent 18 parts
Glyceryl monostearate 5 parts
Poly(vinylidene fluoride) 5 parts
Calcium stearate 2.5 parts
7 parts, inorganic salt
Glasscloth 5 parts
Membrane-forming agent 3.5 parts
Lubricant 1.2 parts.
The mixture that described weighting agent is made up of with weight ratio 3.5:1 titanium dioxide two chromium and polyphenylene sulfide.
The mixture that described inorganic salt are made up of with weight ratio 1.2:1 Repone K and calcium carbonate.
The mixture that described membrane-forming agent is made up of with weight ratio 1:1.1:2.2:3.2 urethane resin, polyvinyl alcohol, Lauryl Alcohol ester and chitosan.
The mixture that described lubricant is made up of with weight ratio 1:2 whiteruss and sherwood oil.
Also comprise additive 7 parts, the mixture that described additive is made up of with weight ratio 1.2:3.5:1 ester based quaternary ammonium salt, alkylamine and imidazoline salt ethyl acrylamide salt.
Also comprise auxiliary agent 4 parts, the mixture that described auxiliary agent is made up of with weight ratio 1:2:1.1 coupling agent, defoamer and flow agent; The mixture that described coupling agent is made up of with weight 1:1.1 titanate coupling agent and silane coupling agent; The mixture that described defoamer is made up of with weight ratio 1:2.2 tributyl phosphate and polydimethylsiloxane; Described flow agent is organosilicon flow agent.
The surface of the durable Teflon film of described height is coated with a coating, and described coating comprises the raw material of following weight part:
12 parts, porous carbon particle
Porous resin 45 parts
Solvent 70 parts;
Wherein, porous carbon particle is uniformly distributed in the surface of porous resin.
Described porous carbon particle by particle diameter 0.8 ��m active carbon particle, the mixture that forms with weight ratio 3.5:2.2:1 of carbon black particle and graphite particle; The mixture that described porous resin is made up of with weight ratio 1:1.1 polyurethane and manthanoate; The mixture that described solvent is made up of with volume ratio 1.2:2:7 isopropyl acetone, dimethyl formamide and water.
A preparation method for high temperature resistant Teflon film, comprises the steps:
(1) batch mixing: take each raw material by weight and mix, obtain blend;
(2) shaping: by mixed blend through compression molding, obtain main base;
(3) sinter: the main base after shaping is sintered 30h at 375 DEG C of temperature;
(4) film forming: by the main base calendering film forming after sintering, obtained high temperature resistant Teflon film.
Embodiment 5
A kind of high temperature resistant Teflon film, comprises the raw material of following weight part:
Tetrafluoroethylene 120 parts
Trolamine 20 parts
Weighting agent 20 parts
Glyceryl monostearate 6 parts
Poly(vinylidene fluoride) 6 parts
Calcium stearate 3 parts
8 parts, inorganic salt
Glasscloth 6 parts
Membrane-forming agent 4 parts
Lubricant 1.5 parts.
The mixture that described weighting agent is made up of with weight ratio 4:1 titanium dioxide two chromium and polyphenylene sulfide.
The mixture that described inorganic salt are made up of with weight ratio 1.5:1 Repone K and calcium carbonate.
The mixture that described membrane-forming agent is made up of with weight ratio 1:1.2:2.5:3.5 urethane resin, polyvinyl alcohol, Lauryl Alcohol ester and chitosan.
The mixture that described lubricant is made up of with weight ratio 1:2.2 whiteruss and sherwood oil.
Also comprise additive 8 parts, the mixture that described additive is made up of with weight ratio 1.5:4:1 ester based quaternary ammonium salt, alkylamine and imidazoline salt ethyl acrylamide salt.
Also comprise auxiliary agent 5 parts, the mixture that described auxiliary agent is made up of with weight ratio 1:2.2:1.2 coupling agent, defoamer and flow agent; The mixture that described coupling agent is made up of with weight 1:1.2 titanate coupling agent and silane coupling agent; The mixture that described defoamer is made up of with weight ratio 1:2.4 tributyl phosphate and polydimethylsiloxane; Described flow agent is organosilicon flow agent.
The surface of the durable Teflon film of described height is coated with a coating, and described coating comprises the raw material of following weight part:
15 parts, porous carbon particle
Porous resin 50 parts
Solvent 80 parts;
Wherein, porous carbon particle is uniformly distributed in the surface of porous resin.
Described porous carbon particle by particle diameter 1.0 ��m active carbon particle, the mixture that forms with weight ratio 4:2.5:1 of carbon black particle and graphite particle; The mixture that described porous resin is made up of with weight ratio 1:1.2 polyurethane and manthanoate; The mixture that described solvent is made up of with volume ratio 1.5:2.2:8 isopropyl acetone, dimethyl formamide and water.
A preparation method for high temperature resistant Teflon film, comprises the steps:
(1) batch mixing: take each raw material by weight and mix, obtain blend;
(2) shaping: by mixed blend through compression molding, obtain main base;
(3) sinter: the main base after shaping is sintered 24h at 380 DEG C of temperature;
(4) film forming: by the main base calendering film forming after sintering, obtained high temperature resistant Teflon film.
Above-described embodiment is the present invention's preferably implementation, and in addition, the present invention can also realize by alternate manner, and any apparent replacement is all within protection scope of the present invention without departing from the inventive concept of the premise.

Claims (10)

1. a high temperature resistant Teflon film, it is characterised in that: the raw material comprising following weight part:
Tetrafluoroethylene 80-120 part
Trolamine 10-20 part
Weighting agent 10-20 part
Glyceryl monostearate 2-6 part
Poly(vinylidene fluoride) 2-6 part
Calcium stearate 1-3 part
Inorganic salt 4-8 part
Glasscloth 2-6 part
Membrane-forming agent 2-4 part
Lubricant 0.5-1.5 part.
2. the high temperature resistant Teflon film of one according to claim 1, it is characterised in that: the mixture that described weighting agent is made up of with weight ratio 2-4:1 titanium dioxide two chromium and polyphenylene sulfide.
3. the high temperature resistant Teflon film of one according to claim 1, it is characterised in that: the mixture that described inorganic salt are made up of with weight ratio 0.5-1.5:1 Repone K and calcium carbonate.
4. the high temperature resistant Teflon film of one according to claim 1, it is characterised in that: the mixture that described membrane-forming agent is made up of with weight ratio 1:0.8-1.2:1.5-2.5:2.5-3.5 urethane resin, polyvinyl alcohol, Lauryl Alcohol ester and chitosan.
5. the high temperature resistant Teflon film of one according to claim 1, it is characterised in that: the mixture that described lubricant is made up of with weight ratio 1:1.4-2.2 whiteruss and sherwood oil.
6. the high temperature resistant Teflon film of one according to claim 1, it is characterized in that: also comprise additive 4-8 part, the mixture that described additive is made up of with weight ratio 0.5-1.5:2-4:1 ester based quaternary ammonium salt, alkylamine and imidazoline salt ethyl acrylamide salt.
7. the high temperature resistant Teflon film of one according to claim 1, it is characterised in that: also comprise auxiliary agent 1-5 part, the mixture that described auxiliary agent is made up of with weight ratio 1:1.4-2.2:0.8-1.2 coupling agent, defoamer and flow agent; The mixture that described coupling agent is made up of with weight 1:0.8-1.2 titanate coupling agent and silane coupling agent; The mixture that described defoamer is made up of with weight ratio 1:1.6-2.4 tributyl phosphate and polydimethylsiloxane; Described flow agent is organosilicon flow agent.
8. the high temperature resistant Teflon film of one according to claim 1, it is characterised in that: the surface of the durable Teflon film of described height is coated with one layer of absorption coating, and described absorption coating comprises the raw material of following weight part:
Porous carbon particle 5-15 part
Porous resin 30-50 part
Solvent 40-80 part;
Wherein, porous carbon particle is uniformly distributed in the surface of porous resin.
9. the high temperature resistant Teflon film of one according to claim 1, it is characterised in that: described porous carbon particle by particle diameter 0.1-1.0 ��m active carbon particle, the mixture that forms with weight ratio 2-4:1.5-2.5:1 of carbon black particle and graphite particle; The mixture that described porous resin is made up of with weight ratio 1:0.8-1.2 polyurethane and manthanoate; The mixture that described solvent is made up of with volume ratio 0.5-1.5:1.4-2.2:4-8 isopropyl acetone, dimethyl formamide and water.
10. the preparation method of a kind of high temperature resistant Teflon film as described in item as arbitrary in claim 1-9, it is characterised in that: comprise the steps:
(1) batch mixing: take each raw material by weight and mix, obtain blend;
(2) shaping: by mixed blend through compression molding, obtain main base;
(3) sinter: the main base after shaping is sintered 24-48h at 360-380 DEG C of temperature;
(4) film forming: by the main base calendering film forming after sintering, obtained high temperature resistant Teflon film.
CN201610182450.6A 2016-03-28 2016-03-28 High-temperature-resistant polytetrafluoroethylene film and production process therefor Pending CN105623160A (en)

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CN107698911A (en) * 2017-11-20 2018-02-16 苏州新区特氟龙塑料制品厂 A kind of at fair price rational Teflon engineering plastics
CN108841296A (en) * 2018-07-26 2018-11-20 合肥广民建材有限公司 A kind of inner wall of building thermal insulation coatings and preparation method thereof

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CN101920559A (en) * 2010-06-09 2010-12-22 浙江格尔泰斯环保特材科技有限公司 Preparation method and product of polytetrafluoroethylene (PTFE) film
CN104744864A (en) * 2015-03-19 2015-07-01 苏州欢颜电气有限公司 Polytetrafluoroethylene film for capacitor
CN104945797A (en) * 2015-05-08 2015-09-30 江苏江城电气有限公司 Processing method of novel polytetrafluoroethylene film for bus insulation

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CN101173093A (en) * 2007-10-22 2008-05-07 神采时尚事业股份有限公司 Multifunctional mixture, teflon film and method for producing the same
CN101920559A (en) * 2010-06-09 2010-12-22 浙江格尔泰斯环保特材科技有限公司 Preparation method and product of polytetrafluoroethylene (PTFE) film
CN104744864A (en) * 2015-03-19 2015-07-01 苏州欢颜电气有限公司 Polytetrafluoroethylene film for capacitor
CN104945797A (en) * 2015-05-08 2015-09-30 江苏江城电气有限公司 Processing method of novel polytetrafluoroethylene film for bus insulation

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107698911A (en) * 2017-11-20 2018-02-16 苏州新区特氟龙塑料制品厂 A kind of at fair price rational Teflon engineering plastics
CN108841296A (en) * 2018-07-26 2018-11-20 合肥广民建材有限公司 A kind of inner wall of building thermal insulation coatings and preparation method thereof

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