CN108841261A - The preparation method of modified fluorubber metal composite sealing plate - Google Patents
The preparation method of modified fluorubber metal composite sealing plate Download PDFInfo
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- CN108841261A CN108841261A CN201810216871.5A CN201810216871A CN108841261A CN 108841261 A CN108841261 A CN 108841261A CN 201810216871 A CN201810216871 A CN 201810216871A CN 108841261 A CN108841261 A CN 108841261A
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- 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
- C09D127/00—Coating compositions based on 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; Coating compositions based on derivatives of such polymers
- C09D127/02—Coating compositions based on 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; Coating compositions based on derivatives of such polymers not modified by chemical after-treatment
- C09D127/12—Coating compositions based on 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; Coating compositions based on derivatives of such polymers not modified by chemical after-treatment containing fluorine atoms
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- 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
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/18—Fireproof paints including high temperature resistant paints
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- 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
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- 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
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- 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
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2217—Oxides; Hydroxides of metals of magnesium
- C08K2003/222—Magnesia, i.e. magnesium oxide
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- 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
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2227—Oxides; Hydroxides of metals of aluminium
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
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Abstract
The present invention relates to a kind of preparation methods of modified fluorubber metal composite sealing plate in rubber composite material manufacture field, it is to coat tackifier on a metal plate, heating makes metal plate surface drying, it is then coated with modified fluororubber coating, again through vulcanizing, 170 DEG C~240 DEG C of curing temperature, vulcanization time 0.5~2 hour, antitack agent is coated, modified fluorubber metal composite sealing plate is made；Fluororubber coating is wherein modified to be made of the raw material of following proportions in parts by weight：100 parts of crude fluororubber, 15~40 parts of ether-containing group acrylic rubber, 2~8 parts of white carbon black, 10~50 parts of carbon black, 2~10 parts of magnesia, 1~8 part of aluminium hydroxide, 0.5~1.5 part of zinc stearate, 0.5~1.5 part of levelling agent, 0.5~1.5 part of defoaming agent, 200~500 parts of organic solvent.Present invention process is simple, easy to operate, and product not only high temperature resistant but also low temperature resistant, oil resistant, resistant to chemical media, coating adhesion is strong, and sealing effect is excellent.
Description
Technical field：The invention belongs to rubber composite material manufacture fields, and in particular to a kind of modified fluorubber metal is multiple
Close the preparation method of sealing plate.
Background technique：Fluorubber has excellent high temperature resistant, oil resistant, resistant to chemical media and the performances such as ageing-resistant, extensively
It applies in fields such as space flight and aviation, petrochemical industry, automobiles, it is interior if automobile oil seal is the product that fluororubber compounded rubber is pressed and molded
Combustion engine cylinder liner uses fluorubber metal composite sealing plate.As internal combustion engine is sent out to high power, lightweight, high explosion pressure direction
Exhibition, the promotion and popularization of bio-fuel-oil, the research and application of metal fluorubber compounding of cyclinder pad gradually become hot spot, domestic related text
It offers and patent discloses the preparation method of a variety of fluorubber metal composite sealing plates.Paper《Internal combustion engine novel type fluorubber coating
The research of metallic packing》Have studied the formula and technique of fluororubber coating, the preparation of fluorubber metal composite sealing plate and
Application in automobile engine.CN200410052794.2 is related to rubber seal and the damping and silencing of a kind of coating of sheet metal
Material and preparation method thereof；CN200710105734.6 is related to a kind of new viton coating metal sealing gasket for internal combustion engine use
Preparation process, its advantages are that two kinds of techniques of spraying and silk-screen printing can be used to be constructed and be not required to primary coat；
ZL201110103455.2 is related to a kind of preparation method of fluorubber metal sealing composite plate, its advantage is that passing through fluorubber primary coat
The combination of layer and finishing coat, fluorubber metal composite sealing plate obtained have excellent crush resistance.Above-mentioned pertinent literature
Fluororubber coating is coated to metallic substrate surface using modes such as roller coating, sprayings, obtained fluorubber metal is multiple after high temperature vulcanized
Plywood, the composite plate have the performances such as high temperature resistant, oil resistant, resistant to chemical media, while being to have excellent performance also with the elasticity of rubber
Sealing material, but fluorubber resistance to low temperature is poor, is subject to certain restrictions its application.In high altitude localities and high latitude area
Winter, temperature can arrive -30 DEG C of even lower, and > -10 DEG C of glass transition temperatures of fluorubber, > -20 DEG C of brittleness temperature,
Existing fluorubber metal composite sealing plate has followed the string at this time, and leakproofness is deteriorated, and glue film is bonded during impregnating anti-icing fluid
Loosely, it is unable to satisfy the seal request of cylinder lining of internal combustion engine.
Summary of the invention
It is an object of the invention to overcome existing fluorubber metal composite sealing plate under low temperature and dipping anti-icing fluid environment
It follows the string, leads to the technological deficiency of seal failure, a kind of simple process is provided, easy to operate, product not only high temperature resistant but also resistance to low
Temperature, oil resistant, resistant to chemical media, coating adhesion is strong, the preparation of the excellent modification fluorubber metal composite sealing plate of sealing effect
Method.
The purpose of the present invention is what is realized by following technical proposals.
The preparation method of modification fluorubber metal composite sealing plate of the invention, it is characterised in that clean in surface clean
Tackifier are coated on metal plate first, makes metal plate surface drying by baking oven or drying tunnel heating, is then coated with modified fluororubber coating,
Again through vulcanizing after coating gas is dry, 170 DEG C~240 DEG C of curing temperature, vulcanization time 0.5~2 hour, after cooling, antitack agent is coated,
Modified fluorubber metal composite sealing plate is made；Wherein the modified fluororubber coating is in parts by weight by the raw material of following proportions
Composition：100 parts of crude fluororubber, 15~40 parts of ether-containing group acrylic rubber, 2~8 parts of white carbon black, 10~50 parts of carbon black,
2~10 parts of magnesia, 1~8 part of aluminium hydroxide, 0.5~1.5 part of zinc stearate, 0.5~1.5 part of levelling agent, defoaming agent 0.5~
1.5 parts, 200~500 parts of organic solvent；The preparation process of modified fluororubber coating is as follows：
By crude fluororubber, ether-containing group acrylic rubber, white carbon black, carbon black, magnesia, aluminium hydroxide and stearic acid
Zinc is kneaded uniformly on a mill or in mixer, organic solvent is added, levelling agent, defoaming agent are added after completely dissolution, be transferred to sand
It is ground in grinding machine or ball mill uniformly, filters and modified fluororubber coating is made；
When coating modified fluororubber coating, in parts by weight, it is added 0.5~2.5 part of vulcanizable fluororubber agent, promotor 0.5
~1.5 parts, 0.2~0.6 part of acrylic rubber vulcanizing agent, according to coating method, 0~30 part of organic solvent adjusting coating is added
Viscosity.
In above scheme, the crude fluororubber is 26 type fluorubber, and Mooney viscosity is 35~600,000.
In above scheme, the white carbon black is antisettling agent, is precipitated silica or fume colloidal silica, specific surface area
For 150~380m2/g.
In above scheme, the organic solvent is ethyl acetate and butyl acetate is 1 by weight:2~4 mixture.
In above scheme, the levelling agent is organic silicon modified by polyether class levelling agent, and defoaming agent is organic silicon modified by polyether
Class defoaming agent.
In above scheme, the vulcanizable fluororubber agent is bisphenol AF (BAF), and promotor is benzyltriphenylphosphonium chloride
(BPP), acrylic rubber vulcanizing agent is ammonium benzoate (AB).
In above scheme, the mode of the coating tackifier is spraying or roller coating；Coat the mode of modified fluororubber coating
For spraying, roller coating or showering.
In above scheme, the antitack agent is organic silicon antitack agent, water-based calcium stearate lotion or thin layer graphite.
The present invention is the scientific practical technical solution that inventor is come out by practical exploration.Fluorubber has excellent resistance to
High temperature, oil resistant, resistant to chemical media, ageing-resistant performance, but there is also elastic weakness low, resistance to low temperature is poor.Internal combustion engine
When cylinder liner local temperature be more than 200 DEG C, and the media such as fuel oil, lubricating oil, freezing liquid are contacted, in high altitude localities and high latitude
The winter in area, temperature can drop to -30 DEG C hereinafter, as internal combustion engine does not run (vehicle is outdoor to be parked) for a long time, then existing fluorine
Rubber-metal compounding of cyclinder pad will follow the string, and leakproofness reduces, and cause internal combustion engine can not work normally, it is therefore necessary to improve
The resistance to low temperature of fluorubber.Ether-containing group acrylic rubber has preferable heat resistance, oil resistant and ageing-resistant performance, resistance to
Cryogenic property is more excellent.By inventor's the study found that using solution blending mode, ether-containing group acrylic rubber can be made
It is well dispersed in fluorubber, forms equal phase structure, obtained blended rubber is except high temperature resistant, oil resistant, resistant to chemical media and resistance to
Outside time property, also there is preferable resistance to low temperature, and improve the surface characteristic of fluorubber, meet blended rubber not only can
Seal request under low temperature environment, also enhance resistant to liquid corrosivity and and antitack agent combination, can be used as high temperature, low temperature and
Gasket under chemical mediator environment is suitble to the various internal combustion engine cylinder cover spacers of manufacture, import/exhaust manifold spacer, refrigerant compression
Secret packing etc..
Modified fluorubber metal composite sealing plate produced by the present invention has the characteristics that：
(1) appearance：It is bright, smooth；
(2) paint film adhesion：Cut edge is completely smooth, none lattice falls off (cross-hatching)；
(3) temperature tolerance：250 DEG C × for 24 hours after, the abnormal phenomenon such as no blistering falls off；
(4) oil resistant：After 170 DEG C of machine oil 10W/30 impregnate 70h, no blistering obscission；
(5) resistant to liquid corrosivity：At 100 DEG C, water and antifreezing agent 1：In 1 mixed liquor after 72h, nothing falls off；
(6) room temperature air-tightness：Chamber presses 0.40~0.45MPa, in water 10min, bubble-free；
(7) the routed property of resistance to compression：Torsion 28N.m × 230 DEG C × 1h are crushed area≤5%；
(8) low temperature airtightness：Glue film is still flexible at -30 DEG C, without gas leak phenomenon when airtight testing sealing.
(9) antistick characteristic：Under weight (30N.m × 96h × 80 DEG C) situation, composite plate is each other without adhesion.
In conclusion the present invention overcomes existing fluorubber metal composite sealing plates under low temperature and dipping anti-icing fluid environment
It follows the string, leads to the technological deficiency of seal failure, the preparation method of the modification fluorubber metal composite sealing plate provided, technique
Simply, easy to operate, product not only high temperature resistant but also low temperature resistant, oil resistant, resistant to chemical media, coating adhesion is strong, and sealing effect is excellent.
The invention is further illustrated by the following examples, and the present invention is not limited only to the embodiment.
Specific embodiment
Embodiment one
The preparation method of the modification fluorubber metal composite sealing plate of this example is first on the clean metal plate of surface clean
Tackifier are first coated, makes metal plate surface drying by baking oven or drying tunnel heating, modified fluororubber coating is then coated with, after coating gas is dry
Again through vulcanizing, 230 DEG C of curing temperature, vulcanization time 1.5 hours, after cooling, antitack agent is coated, it is multiple that modified fluorubber metal is made
Close sealing plate；Wherein the modified fluororubber coating is made of the raw material of following proportions in parts by weight：
100 parts of crude fluororubber, 25 parts of ether-containing group acrylic rubber, 4 parts of white carbon black, iodine absorption value is the height of 77g/Kg
30 parts of hard carbon black, average grain diameter is 8 parts of 6.5um magnesia, and average grain diameter is 4 parts of 4.0um aluminium hydroxide, zinc stearate 0.5
Part, 1 part of levelling agent, 1 part of defoaming agent, 350 parts of organic solvent；
The preparation process of modified fluororubber coating is as follows：
By crude fluororubber, ether-containing group acrylic rubber, white carbon black, carbon black, magnesia, aluminium hydroxide and stearic acid
Zinc is kneaded uniformly on a mill or in mixer, organic solvent is added, levelling agent, defoaming agent are added after completely dissolution, be transferred to sand
After being ground 30 minutes in grinding machine or ball mill, filters and modified fluororubber coating is made；
When coating modified fluororubber coating, in parts by weight, 2 parts of vulcanizable fluororubber agent of addition, 0.5 part of promotor, propylene
0.3 part of acid esters vulcanizer, according to coating method, 0~30 part of organic solvent adjusting coating viscosity is added.
Crude fluororubber is 26 type fluorubber, and Mooney viscosity is 400,000.
White carbon black is antisettling agent, is fume colloidal silica, specific surface area 300m2/g.
Organic solvent is ethyl acetate and butyl acetate is 1 by weight:3 mixture.
Levelling agent is organic silicon modified by polyether class levelling agent, and defoaming agent is organic silicon modified by polyether class defoaming agent.Fluorubber
Vulcanizing agent is bisphenol AF (BAF), and promotor is benzyltriphenylphosphonium chloride (BPP), and acrylic rubber vulcanizing agent is benzoic acid
Ammonium (AB).
The mode for coating tackifier is spraying or roller coating；The mode for coating modified fluororubber coating is spraying, roller coating or leaching
It applies.
Tackifier are the CH607 tackifier of Lord Corp. of U.S. production.
Antitack agent is organic silicon antitack agent.
Metal plate be stainless steel plate/band, steel spring plate, low carbon steel plate, low alloy steel plate, various hot-rolled and cold-rolled sheet irons or
Various non-ferrous metal thins, with a thickness of 0.2~1.0mm.
Embodiment two
The preparation method of the modification fluorubber metal composite sealing plate of this example is first on the clean metal plate of surface clean
Tackifier are first coated, makes metal plate surface drying by baking oven or drying tunnel heating, modified fluororubber coating is then coated with, after coating gas is dry
Again through vulcanizing, 240 DEG C of curing temperature, vulcanization time 0.5 hour, after cooling, antitack agent is coated, it is multiple that modified fluorubber metal is made
Close sealing plate；Wherein the modified fluororubber coating is made of the raw material of following proportions in parts by weight：
100 parts of crude fluororubber, 40 parts of ether-containing group acrylic rubber, 6 parts of white carbon black, iodine absorption value is the height of 77g/Kg
35 parts of hard carbon black, average grain diameter be 6 parts of 6.5um magnesia, average grain diameter be 5 parts of 4.0um aluminium hydroxide, 1 part of zinc stearate,
1 part of levelling agent, 1 part of defoaming agent, 350 parts of organic solvent；
When coating modified fluororubber coating, in parts by weight, 2 parts of vulcanizable fluororubber agent of addition, 0.5 part of promotor, propylene
0.6 part of acid esters vulcanizer, according to coating method, 0~30 part of organic solvent adjusting coating viscosity is added.
Crude fluororubber is 26 type fluorubber, and Mooney viscosity is 400,000.
White carbon black is precipitated silica, specific surface area 160m2/g.
Organic solvent is ethyl acetate and butyl acetate is 1 by weight:3 mixture.
Tackifier are the HT-607 tackifier of Guilin Jin Gu new material Co., Ltd production.
Antitack agent is organic silicon antitack agent.
Remaining is the same as embodiment one.
Embodiment three
The preparation method of the modification fluorubber metal composite sealing plate of this example is first on the clean metal plate of surface clean
Tackifier are first coated, makes metal plate surface drying by baking oven or drying tunnel heating, modified fluororubber coating is then coated with, after coating gas is dry
Again through vulcanizing, 170 DEG C of curing temperature, vulcanization time 2 hours, after cooling, antitack agent is coated, modified fluorubber metal composite is made
Sealing plate；Wherein the modified fluororubber coating is made of the raw material of following proportions in parts by weight：
100 parts of crude fluororubber, 25 parts of ether-containing group acrylic rubber, 2 parts of white carbon black, iodine absorption value is the height of 87g/Kg
50 parts of hard carbon black, average grain diameter is 2 parts of 0.8um magnesia, and average grain diameter is 8 parts of 0.8um aluminium hydroxide, zinc stearate 1.5
Part, 1.5 parts of levelling agent, 0.5 part of defoaming agent, 500 parts of organic solvent；
When coating modified fluororubber coating, in parts by weight, 0.5 part of vulcanizable fluororubber agent of addition, 1 part of promotor, propylene
0.4 part of acid esters vulcanizer, according to coating method, 0~30 part of organic solvent adjusting coating viscosity is added.
Crude fluororubber is 26 type fluorubber, and Mooney viscosity is 350,000.
White carbon black is fume colloidal silica, specific surface area 380m2/g.
Organic solvent is ethyl acetate and butyl acetate is 1 by weight:4 mixture.
Tackifier are the HT-607 tackifier of Guilin Jin Gu new material Co., Ltd production.
Antitack agent is thin layer graphite.
Remaining is the same as embodiment one.
Example IV
The preparation method of the modification fluorubber metal composite sealing plate of this example is first on the clean metal plate of surface clean
Tackifier are first coated, makes metal plate surface drying by baking oven or drying tunnel heating, modified fluororubber coating is then coated with, after coating gas is dry
Again through vulcanizing, 220 DEG C of curing temperature, vulcanization time 1.5 hours, after cooling, antitack agent is coated, it is multiple that modified fluorubber metal is made
Close sealing plate；Wherein the modified fluororubber coating is made of the raw material of following proportions in parts by weight：
100 parts of crude fluororubber, 15 parts of ether-containing group acrylic rubber, 8 parts of white carbon black, iodine absorption value is the height of 80g/Kg
10 parts of hard carbon black, average grain diameter is 10 parts of magnesia of 7.5um, and average grain diameter is 1 part of aluminium hydroxide of 7.5um, stearic acid
1 part of zinc, 0.5 part of levelling agent, 1.5 parts of defoaming agent, 200 parts of organic solvent；
When coating modified fluororubber coating, in parts by weight, 2.5 parts of vulcanizable fluororubber agent of addition, 1.5 parts of promotor, third
0~30 part of organic solvent adjusting coating viscosity is added according to coating method in 0.2 part of olefin(e) acid ester vulcanizer.
Crude fluororubber is 26 type fluorubber, and Mooney viscosity is 400,000.
White carbon black is precipitated silica, specific surface area 150m2/g.
Organic solvent is ethyl acetate and butyl acetate is 1 by weight:2 mixture.
Tackifier are the HT-607 tackifier of Guilin Jin Gu new material Co., Ltd production.
Antitack agent is water-based calcium stearate lotion.
Remaining is the same as embodiment one.
Embodiment five
The preparation method of the modification fluorubber metal composite sealing plate of this example is first on the clean metal plate of surface clean
Tackifier are first coated, makes metal plate surface drying by baking oven or drying tunnel heating, modified fluororubber coating is then coated with, after coating gas is dry
Again through vulcanizing, 230 DEG C of curing temperature, vulcanization time 1.5 hours, after cooling, antitack agent is coated, it is multiple that modified fluorubber metal is made
Close sealing plate；Wherein the modified fluororubber coating is made of the raw material of following proportions in parts by weight：
100 parts of crude fluororubber, 25 parts of ether-containing group acrylic rubber, 4 parts of white carbon black, iodine absorption value is the height of 77g/Kg
25 parts of hard carbon black, average grain diameter is 8 parts of magnesia of 6.5um, and average grain diameter is 4 parts of aluminium hydroxide of 4um, zinc stearate 1
Part, 1 part of levelling agent, 0.5 part of defoaming agent, 350 parts of organic solvent；
When coating modified fluororubber coating, in parts by weight, 2 parts of vulcanizable fluororubber agent of addition, 0.5 part of promotor, propylene
0.3 part of acid esters vulcanizer, according to coating method, 0~30 part of organic solvent adjusting coating viscosity is added.
Crude fluororubber is 26 type fluorubber, and Mooney viscosity is 600,000.
White carbon black is precipitated silica, specific surface area 160m2/g.
Organic solvent is ethyl acetate and butyl acetate is 1 by weight:3 mixture.
Tackifier are the HT-607 tackifier of Guilin Jin Gu new material Co., Ltd production.
Antitack agent is organic silicon antitack agent.
Remaining is the same as embodiment one.
Embodiment six
The preparation method of the modification fluorubber metal composite sealing plate of this example is first on the clean metal plate of surface clean
Tackifier are first coated, makes metal plate surface drying by baking oven or drying tunnel heating, modified fluororubber coating is then coated with, after coating gas is dry
Again through vulcanizing, 200 DEG C of curing temperature, vulcanization time 1.5 hours, after cooling, antitack agent is coated, it is multiple that modified fluorubber metal is made
Close sealing plate；Wherein the modified fluororubber coating is made of the raw material of following proportions in parts by weight：
100 parts of crude fluororubber, 30 parts of ether-containing group acrylic rubber, 3 parts of white carbon black, iodine absorption value is the height of 77g/Kg
35 parts of hard carbon black, average grain diameter is 8 parts of magnesia of 6.5um, and average grain diameter is 4 parts of aluminium hydroxide of 4um, zinc stearate
0.5 part, 1 part of levelling agent, 1 part of defoaming agent, 450 parts of organic solvent；
When coating modified fluororubber coating, in parts by weight, 2 parts of vulcanizable fluororubber agent of addition, 0.5 part of promotor, propylene
0.5 part of acid esters vulcanizer, according to coating method, 0~30 part of organic solvent adjusting coating viscosity is added.
Crude fluororubber is 26 type fluorubber, and Mooney viscosity is 450,000.
White carbon black is fume colloidal silica, specific surface area 380m2/g.
Organic solvent is ethyl acetate and butyl acetate is 1 by weight:3 mixture.
Tackifier are the HT-607 tackifier of Guilin Jin Gu new material Co., Ltd production.
Antitack agent is organic silicon antitack agent.
Remaining is the same as embodiment one.
Claims (8)
1. a kind of preparation method of modified fluorubber metal composite sealing plate, it is characterised in that in the metal plate that surface clean is clean
On coat tackifier first, by baking oven or drying tunnel heating make metal plate surface drying, be then coated with modified fluororubber coating, coating gas
Again through vulcanizing after dry, 170 DEG C~240 DEG C of curing temperature, vulcanization time 0.5~2 hour, after cooling, antitack agent coated, is made and changes
Property fluorubber metal composite sealing plate；Wherein the modified fluororubber coating is made of the raw material of following proportions in parts by weight：
100 parts of crude fluororubber, 15~40 parts of ether-containing group acrylic rubber, 2~8 parts of white carbon black, 10~50 parts of carbon black, magnesia
2~10 parts, 1~8 part of aluminium hydroxide, 0.5~1.5 part of zinc stearate, 0.5~1.5 part of levelling agent, 0.5~1.5 part of defoaming agent,
200~500 parts of organic solvent；The preparation process of modified fluororubber coating is as follows：
Crude fluororubber, ether-containing group acrylic rubber, white carbon black, carbon black, magnesia, aluminium hydroxide and zinc stearate are existed
It is kneaded on open mill or in mixer uniformly, organic solvent is added, levelling agent, defoaming agent are added after completely dissolution, be transferred to sand mill
Or ground in ball mill uniformly, it filters and modified fluororubber coating is made；
When coating modified fluororubber coating, in parts by weight, it is added 0.5~2.5 part of vulcanizable fluororubber agent, promotor 0.5~1.5
Part, 0.2~0.6 part of acrylic rubber vulcanizing agent, according to coating method, 0~30 part of organic solvent adjusting coating viscosity is added.
2. being modified the preparation method of fluorubber metal composite sealing plate according to claim 1, it is characterised in that the fluorine rubber
Glue raw rubber is 26 type fluorubber, and Mooney viscosity is 35~600,000.
3. being modified the preparation method of fluorubber metal composite sealing plate according to claim 1, it is characterised in that the hard charcoal
Black is precipitated silica or fume colloidal silica, and specific surface area is 150~380m2/g.
4. being modified the preparation method of fluorubber metal composite sealing plate according to claim 1, it is characterised in that described organic
Solvent is ethyl acetate and butyl acetate is 1 by weight:2~4 mixture.
5. being modified the preparation method of fluorubber metal composite sealing plate according to claim 1, it is characterised in that the levelling
Agent is organic silicon modified by polyether class levelling agent, and defoaming agent is organic silicon modified by polyether class defoaming agent.
6. being modified the preparation method of fluorubber metal composite sealing plate according to claim 1, it is characterised in that the fluorine rubber
Glue vulcanizing agent is bisphenol AF, and promotor is benzyltriphenylphosphonium chloride, and acrylic rubber vulcanizing agent is ammonium benzoate.
7. being modified the preparation method of fluorubber metal composite sealing plate according to claim 1, it is characterised in that the coating
The mode of tackifier is spraying or roller coating；The mode for coating modified fluororubber coating is spraying, roller coating or showering.
8. being modified the preparation method of fluorubber metal composite sealing plate according to claim 1, it is characterised in that described anti-sticking
Agent is organic silicon antitack agent, water-based calcium stearate lotion or thin layer graphite.
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| CN201810216871.5A CN108841261A (en) | 2018-03-12 | 2018-03-12 | The preparation method of modified fluorubber metal composite sealing plate |
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| CN201810216871.5A CN108841261A (en) | 2018-03-12 | 2018-03-12 | The preparation method of modified fluorubber metal composite sealing plate |
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| CN112592547A (en) * | 2020-12-16 | 2021-04-02 | 江苏赛尔密封科技股份有限公司 | Anti-aging rubber sealing composite board and preparation method thereof |
| CN113673803A (en) * | 2020-05-13 | 2021-11-19 | 丰田自动车株式会社 | Vehicle distribution device, vehicle and terminal |
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| CN113673803A (en) * | 2020-05-13 | 2021-11-19 | 丰田自动车株式会社 | Vehicle distribution device, vehicle and terminal |
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