CN106905646A - A kind of thermostable fluorine rubber composition of excellent combination property and preparation method thereof - Google Patents
A kind of thermostable fluorine rubber composition of excellent combination property and preparation method thereof Download PDFInfo
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- CN106905646A CN106905646A CN201710232490.1A CN201710232490A CN106905646A CN 106905646 A CN106905646 A CN 106905646A CN 201710232490 A CN201710232490 A CN 201710232490A CN 106905646 A CN106905646 A CN 106905646A
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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
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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
- C08K2201/00—Specific properties of additives
- C08K2201/014—Additives containing two or more different additives of the same subgroup in C08K
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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
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
Abstract
A kind of thermostable fluorine rubber composition the invention discloses excellent combination property and preparation method thereof, described fluoro-rubber composite includes following raw materials：Fluorubber, EP rubbers, carbon black, graphite, cumyl peroxide, Triallyl isocyanurate, stearic acid；The preparation method of described fluoro-rubber composite is：Fluorubber and EP rubbers are carried out into mixed rubber of plasticating to obtain；To adding carbon black, graphite, cumyl peroxide, Triallyl isocyanurate and stearic acid to be kneaded in mixed rubber, elastomeric compound is obtained；Elastomeric compound is carried out into vulcanization compacting.Beneficial effects of the present invention are：Each raw material of fluoro-rubber composite of the present invention is organically mixed makes described fluoro-rubber composite be improved in hardness, stretch breaking strength, elongation rate of tensile failure and heat resistance, make described fluorubber that there is good building-up property, and elasticity, stress can be for a long time kept in hot environment without creep occurring, softening and stress relaxation.
Description
Technical field
The present invention relates to a kind of rubber composition, and in particular to a kind of thermostable fluorine rubber composition of excellent combination property
And preparation method thereof.
Background technology
Fluorubber refers to the synthesis macromolecular elastomer containing fluorine atom on the carbon atom of main chain or side chain, and fluorine atom draws
Enter, the excellent heat resistance of rubber, inoxidizability, oil resistivity, corrosion resistance and resistance to weathering are assigned, in space flight, aviation, vapour
The fields such as car, oil and household electrical appliance are widely applied, and are irreplaceable critical materials in national defence sophisticated industry.
In order to improve the performance of fluorubber and product, the modified and processing to fluorubber both at home and abroad has carried out numerous studies work
Make.At present, the modified of fluorubber mainly has both direction：One is, by backbone modification, such as fluoroether rubber, fluorosioloxane rubber are opened
Hair, fluorubber main chain is introduced by ehter bond, increases the flexibility of molecule, and fluorine rubber is remained while substantially improving its cryogenic property
The characteristics of collagen has, but due to Development and Production high cost, significantly limit its promotion and application；Two are, rubber blending, will
Fluorubber is used in combination with some general purpose rubbers, specific rubber, and to obtain, performance is more excellent, the lower material of cost.Blending changes
Property is a kind of preferable method, but is had the following disadvantages：(1) cost performance for making novel type fluorubber is not high.Fluoroether rubber, fluorine silicon
Rubber is too high due to development cost, makes its price even above fluorubber, and the condition that can only be used in compares under harsh environment, pushes away
Wide and application is restricted；(2) blending and modifying between fluorubber is restricted to the modified of fluorubber performance.Same type rubber
Glue determines that it is caused and be restricted on performance deficiency in improvement by rubber self structure.And fluorubber and fluoroether rubber are total to
Though the mixed cryogenic property that can well improve fluorubber, relatively costly；(3) blending of fluorubber and other rubber is to fluorubber
Cryogenic property improve.Blending and modifying can improve the improvement of the single performance such as the elasticity of fluorubber, processing characteristics, but to improving
Fluorubber cryogenic property and to consider the aspect research of multiple defects very few.
The content of the invention
The purpose of the present invention is by modified a kind of cheap, its heat-resisting quantity and wear-resistant produced to fluorubber
Thermostable fluorine rubber composition of excellent combination property that property is improved and preparation method thereof.
A kind of thermostable fluorine rubber composition of excellent combination property, including following weight parts raw material：Fluorubber 60-
100 parts, EP rubbers 10-30 parts, carbon black 30-50 parts, graphite 0.4-0.6 parts, cumyl peroxide 1-3 parts, triallyl
Isocyanuric acid ester 2-6 parts, stearic acid 1-3 parts.
Further, the raw material of the thermostable fluorine rubber composition of the excellent combination property, including following weight parts：Fluorine
80 parts of rubber, 20 parts of EP rubbers, 40 parts of carbon black, 0.5 part of graphite, 2 parts of cumyl peroxide, Triallyl isocyanurate
4 parts, 2 parts of stearic acid.
The preparation method of the thermostable fluorine rubber composition of the excellent combination property, comprises the following steps：
(1) fluorubber and EP rubbers are plasticated, is obtained mixed rubber；Plasticate refer to rubber processing an operation,
Rubber molecular weight and viscosity are reduced to improve its plasticity, and obtains appropriate mobility, it is further to meet mixing and shaping
The need for processing.The process of plasticating is to be broken rubber macromolecule chain, and strand is shortened by length and makes even molecular weight distribution
Process；
(2) to addition carbon black, graphite, cumyl peroxide, Triallyl isocyanurate and tristearin in mixed rubber
Acid is kneaded, and obtains elastomeric compound；Mixing is the technique that rubber or rubber of plasticating are smelt elastomeric compound with rubber mixing machine with compounding ingredient, is
The most important production technology of rubber processing, mixing refers to, in order to improve the physical and mechanical properties of rubber, to improve machine-shaping
Technique, reduces production cost, it is necessary to add various compounding ingredients in rubber or plastic cement, such as filler, reinforcing agent, accelerator,
Vulcanizing agent, age resistor, antiscorching agent etc., these compounding ingredients have the materials such as solid, liquid, and the various compounding ingredients dispersion that will be added is equal
It is even, it is ensured that the property of sizing material is consistent；
(3) elastomeric compound vulcanize suppress described excellent combination property thermostable fluorine rubber composition.
Further, in step (1), fluorubber and EP rubbers are carried out into plastics in rubber mixing machine.
Further, in step (2), the mixing is carried out in rubber mixing machine.
Further, in step (3), the vulcanization is carried out in vulcanizing press.
Further, the temperature of the vulcanization is：150-160 DEG C, the time of the vulcanization is 25-35min, the vulcanization
Pressure be 10-20MPa.
Fluorubber refers to the synthesis macromolecular elastomer containing fluorine atom on the carbon atom of main chain or side chain.Fluorine atom draws
Enter, assign the excellent heat resistance of rubber, inoxidizability, oil resistivity, corrosion resistance and resistance to weathering.Because fluorubber is to gas
Solubility than larger, but diffusion velocity is smaller, so fluorubber aggregate performance gas permeability out is also small.
EP rubbers is the synthetic rubber with ethene, propylene as principal monomer.Because its main chain is by chemically stable saturation
Hydrocarbon is constituted, therefore its resistance to ozone, heat-resisting, weather-proof, ageing-resistant performance are excellent, with good chemicals-resistant, electrical insulation capability, impact
Elasticity, cryogenic property, low-density and fillibility high and hot water resistance and water-fast vapor permeability etc., can be widely used for automobile component, build
Build with fields such as waterproof material, electric wire and cable jacket, heat-resistant rubber hose, adhesive tape, automotive sealant, modifying lubricating oils.
Carbon black also known as carbon black, are a kind of amorphous carbon, light, pine and superfine black powder, and surface area is very big, is carbon containing
Material (coal, natural gas, heavy oil, fuel oil etc.) is produced through imperfect combustion under conditions of lack of air or obtained by being thermally decomposed
Thing.Used as reinforcing agent when rubber is made.The strengthening action of carbon black is that its interfacial energy is combined with rubber.Rubber
Glue can be particularly well adsorbed in carbon blacksurface, wet carbon black, and this strengthening action increases rubber strength, resists the energy of tear
Power strengthens.
Graphite is a kind of allotrope of elemental carbon, is one of most soft mineral.At normal temperatures, graphite has good
Chemical stability, can the corrosion of acidproof, alkaline-resisting and organic solvent-resistant performance.Graphite enters in building rubber compound frequently as reinforced filling
Row addition, graphite can increase the high temperature resistant of rubber, decay resistance.
Cumyl peroxide is excellent organic peroxide, the initiator that can be polymerized as monomer, macromolecular material
Vulcanizing agent, crosslinking agent, curing agent, flame-retardant additive, prevulcanization can be greatly reduced when being used as vulcanizing agent, extension mixing
The period of storage of glue, its vulcanizate has good dynamic property, and compression set is small, and hardness is slightly lower, moderate strength, elasticity
It is preferable with ageing-resistant performance.
Triallyl isocyanurate is the cross-linked modifier of various thermoplastics.Can significantly be carried when being used as crosslinking agent
The heat resistance of product high, anti-flammability, solvent resistance, mechanical strength and electrical property etc..It using peroxide systems than individually being handed over
Connection, will significantly increase product quality and free from extraneous odour.
Stearic acid is octadecanoid acid, is generated by grease hydrolysis.Stearic acid extensively should in natural gum, synthetic rubber and latex
Vulcanizing activator, it is also possible to make plasticizer and softening agent.Stiffened resin acid is needed to make emulsifying agent during synthetic rubber is produced,
When foam rubber is manufactured, stearic acid can make foaming agent, and stearic acid also acts as the demoulding of rubber.With raising sizing material
The effect of heat resistance, resistance to ag(e)ing.
Beneficial effects of the present invention are：Contain in the thermostable fluorine rubber composition of excellent combination property of the present invention
Fluorubber there is excellent heat resistance, inoxidizability, corrosion resistance and resistance to weathering, reinforced filling agent carbon black and graphite
Increased the high temperature resistant of rubber, corrosion-resistant and lear energy；Vulcanization crosslinking agent cumyl peroxide and triallyl
Isocyanuric acid ester can greatly reduce prevulcanization, extend the period of storage of elastomeric compound, and can improve the quality of vulcanizate；Activator
Stearic acid has raising rubber heat resistance, the effect of resistance to ag(e)ing；The high temperature resistant of excellent combination property of the present invention
Each raw material of fluoro-rubber composite is organically mixed to be made described fluoro-rubber composite in hardness, stretch breaking strength, breaks
It is improved in elongation, wearability, heat-resisting quantity and heat resistance, there is described fluoro-rubber composite good
Building-up property, and can be kept for a long time in hot environment elasticity, stress without occur creep, soften and stress
It is lax.
Specific embodiment
Embodiment one
A kind of thermostable fluorine rubber composition of excellent combination property, including following weight parts raw material：Fluorubber 60kg,
EP rubbers 10kg, carbon black 30kg, graphite 0.4kg, cumyl peroxide 1kg, Triallyl isocyanurate 2kg, tristearin
Sour 1kg.
The preparation method of the thermostable fluorine rubber composition of the excellent combination property, comprises the following steps：
(1) fluorubber and EP rubbers are plasticated in rubber mixing machine, to reduce rubber molecular weight and viscosity so as to carry
Its plasticity high and mobility, obtain mixed rubber, and it is to be broken rubber macromolecule chain plasticate, and makes molecular weight distribution more equal
Homogenize, to meet the process requirements of mixing and shaping；
(2) to addition reinforced filling agent carbon black and graphite, vulcanization crosslinking agent cumyl peroxide and three in mixed rubber
Allyl iso cyanurate, activator stearic acid is kneaded with rubber mixing machine, obtains elastomeric compound；The addition of carbon black and graphite can increase
Plus high temperature resistant, the corrosion-resistant and lear energy of rubber；Cumyl peroxide and Triallyl isocyanurate conduct
Vulcanization crosslinking agent is added can greatly reduce prevulcanization, extend the period of storage of elastomeric compound, and can improve the quality of vulcanizate；Firmly
The addition of resin acid has raising rubber heat resistance, the effect of resistance to ag(e)ing；Mixing makes mixed rubber match somebody with somebody with the various of addition
Mixture is well mixed, consistent with the property for ensuring sizing material；
(3) elastomeric compound is carried out into vulcanization compacting in vulcanizing press, the curing temperature of vulcanizing press is 150 DEG C, sulphur
The pressure of change is 10MPa, and 25min is vulcanized with this understanding, obtains the thermostable fluorine rubber composition of described excellent combination property.
Embodiment two
A kind of thermostable fluorine rubber composition of excellent combination property, including following weight parts raw material：Fluorubber 80kg,
EP rubbers 20kg, carbon black 40kg, graphite 0.5kg, cumyl peroxide 2kg, Triallyl isocyanurate 4kg, tristearin
Sour 2kg.
The preparation method of the thermostable fluorine rubber composition of the excellent combination property, comprises the following steps：
(1) fluorubber and EP rubbers are plasticated in rubber mixing machine, to reduce rubber molecular weight and viscosity so as to carry
Its plasticity high and mobility, obtain mixed rubber, and it is to be broken rubber macromolecule chain plasticate, and makes molecular weight distribution more equal
Homogenize, to meet the process requirements of mixing and shaping；
(2) to addition reinforced filling agent carbon black and graphite, vulcanization crosslinking agent cumyl peroxide and three in mixed rubber
Allyl iso cyanurate, activator stearic acid is kneaded with rubber mixing machine, obtains elastomeric compound；The addition of carbon black and graphite can increase
Plus high temperature resistant, the corrosion-resistant and lear energy of rubber；Cumyl peroxide and Triallyl isocyanurate conduct
Vulcanization crosslinking agent is added can greatly reduce prevulcanization, extend the period of storage of elastomeric compound, and can improve the quality of vulcanizate；Firmly
The addition of resin acid has raising rubber heat resistance, the effect of resistance to ag(e)ing；Mixing makes mixed rubber match somebody with somebody with the various of addition
Mixture is well mixed, consistent with the property for ensuring sizing material；
(3) elastomeric compound is carried out into vulcanization compacting in vulcanizing press, the curing temperature of vulcanizing press is 155 DEG C, sulphur
The pressure of change is 15MPa, and 30min is vulcanized with this understanding, obtains the thermostable fluorine rubber composition of described excellent combination property.
Embodiment three
A kind of thermostable fluorine rubber composition of excellent combination property, including following weight parts raw material：Fluorubber
100kg, EP rubbers 30kg, carbon black 50kg, graphite 0.6kg, cumyl peroxide 3kg, Triallyl isocyanurate
6kg, stearic acid 3kg.
The preparation method of the thermostable fluorine rubber composition of the excellent combination property, comprises the following steps：
(1) fluorubber and EP rubbers are plasticated in rubber mixing machine, to reduce rubber molecular weight and viscosity so as to carry
Its plasticity high and mobility, obtain mixed rubber, and it is to be broken rubber macromolecule chain plasticate, and makes molecular weight distribution more equal
Homogenize, to meet the process requirements of mixing and shaping；
(2) to addition reinforced filling agent carbon black and graphite, vulcanization crosslinking agent cumyl peroxide and three in mixed rubber
Allyl iso cyanurate, activator stearic acid is kneaded with rubber mixing machine, obtains elastomeric compound；The addition of carbon black and graphite can increase
Plus high temperature resistant, the corrosion-resistant and lear energy of rubber；Cumyl peroxide and Triallyl isocyanurate conduct
Vulcanization crosslinking agent is added can greatly reduce prevulcanization, extend the period of storage of elastomeric compound, and can improve the quality of vulcanizate；Firmly
The addition of resin acid has raising rubber heat resistance, the effect of resistance to ag(e)ing；Mixing makes mixed rubber match somebody with somebody with the various of addition
Mixture is well mixed, consistent with the property for ensuring sizing material；
(3) elastomeric compound is carried out into vulcanization compacting in vulcanizing press, the curing temperature of vulcanizing press is 160 DEG C, sulphur
The pressure of change is 20MPa, and 35min is vulcanized with this understanding, obtains the thermostable fluorine rubber composition of described excellent combination property.
The present invention is not limited to above-mentioned preferred forms, and anyone can show that other are various under enlightenment of the invention
The product of form, however, make any change in its details, it is every with technical scheme identical or similar to the present application,
It is within the scope of the present invention.
Claims (7)
1. a kind of thermostable fluorine rubber composition of excellent combination property, it is characterised in that the raw material including following weight parts：Fluorine
Rubber 60-100 parts, EP rubbers 10-30 parts, carbon black 30-50 parts, graphite 0.4-0.6 parts, cumyl peroxide 1-3 parts, three
Allyl iso cyanurate 2-6 parts, stearic acid 1-3 parts.
2. the thermostable fluorine rubber composition of excellent combination property according to claim 1, it is characterised in that including following heavy
Measure the raw material of part：80 parts of fluorubber, 20 parts of EP rubbers, 40 parts of carbon black, 0.5 part of graphite, 2 parts of cumyl peroxide, triolefin
4 parts of propyl group isocyanuric acid ester, 2 parts of stearic acid.
3. the preparation method of the thermostable fluorine rubber composition of one of claim 1-2 excellent combination properties, its feature exists
In comprising the following steps：
(1) fluorubber and EP rubbers are plasticated, is obtained mixed rubber；
(2) enter to addition carbon black, graphite, cumyl peroxide, Triallyl isocyanurate and stearic acid in mixed rubber
Row mixing, obtains elastomeric compound；
(3) elastomeric compound vulcanize suppress described excellent combination property thermostable fluorine rubber composition.
4. the preparation method of the thermostable fluorine rubber composition of excellent combination property according to claim 3, it is characterised in that
In step (1), fluorubber and EP rubbers are carried out into plastics in rubber mixing machine.
5. the preparation method of the thermostable fluorine rubber composition of excellent combination property according to claim 3, it is characterised in that
In step (2), the mixing is carried out in rubber mixing machine.
6. the preparation method of the thermostable fluorine rubber composition of excellent combination property according to claim 3, it is characterised in that
In step (3), the vulcanization is carried out in vulcanizing press.
7. the preparation method of the thermostable fluorine rubber composition of excellent combination property according to claim 6, it is characterised in that
The temperature of the vulcanization is：150-160 DEG C, the time of the vulcanization is 25-35min, and the pressure of the vulcanization is 10-20MPa.
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108623951A (en) * | 2018-03-20 | 2018-10-09 | 凯斯通阀门有限公司 | A kind of explosion-proof fluorubber of modification for valve |
| CN109337257A (en) * | 2018-09-29 | 2019-02-15 | 嘉科（无锡）密封技术有限公司 | A kind of metal strong seal rubber and preparation method thereof |
| CN109915069A (en) * | 2019-03-21 | 2019-06-21 | 新疆中凌工程技术有限公司 | A kind of weak consolidation oil-sand reservoir dilatation high temperature plugging structure and its method for blocking |
| CN109944574A (en) * | 2019-03-21 | 2019-06-28 | 新疆中凌工程技术有限公司 | Weak consolidation oil-sand reservoir dilatation straight well auxiliary volume expansion structure and construction method |
| CN112592590A (en) * | 2020-12-22 | 2021-04-02 | 安徽京鸿密封件技术有限公司 | Low-pressure-change high-temperature-resistant flame-retardant silica gel |
| CN115368683A (en) * | 2022-08-22 | 2022-11-22 | 浙江顺豪新材料有限公司 | Lining rubber material for electromagnetic flowmeter and preparation method thereof |
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| CN105086294A (en) * | 2015-08-07 | 2015-11-25 | 安徽锦洋氟化学有限公司 | Low-temperature-resistant heat-conducting fluororubber material |
| CN105419178A (en) * | 2015-11-30 | 2016-03-23 | 安徽锦洋氟化学有限公司 | Fluororubber material used for seal gaskets of engines |
| CN105419116A (en) * | 2015-11-30 | 2016-03-23 | 安徽锦洋氟化学有限公司 | High-performance fluororubber material used for ship gaskets |
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| CN105086294A (en) * | 2015-08-07 | 2015-11-25 | 安徽锦洋氟化学有限公司 | Low-temperature-resistant heat-conducting fluororubber material |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108623951A (en) * | 2018-03-20 | 2018-10-09 | 凯斯通阀门有限公司 | A kind of explosion-proof fluorubber of modification for valve |
| CN109337257A (en) * | 2018-09-29 | 2019-02-15 | 嘉科（无锡）密封技术有限公司 | A kind of metal strong seal rubber and preparation method thereof |
| CN109915069A (en) * | 2019-03-21 | 2019-06-21 | 新疆中凌工程技术有限公司 | A kind of weak consolidation oil-sand reservoir dilatation high temperature plugging structure and its method for blocking |
| CN109944574A (en) * | 2019-03-21 | 2019-06-28 | 新疆中凌工程技术有限公司 | Weak consolidation oil-sand reservoir dilatation straight well auxiliary volume expansion structure and construction method |
| CN112592590A (en) * | 2020-12-22 | 2021-04-02 | 安徽京鸿密封件技术有限公司 | Low-pressure-change high-temperature-resistant flame-retardant silica gel |
| CN115368683A (en) * | 2022-08-22 | 2022-11-22 | 浙江顺豪新材料有限公司 | Lining rubber material for electromagnetic flowmeter and preparation method thereof |
| CN115368683B (en) * | 2022-08-22 | 2023-11-17 | 浙江顺豪新材料有限公司 | Lining rubber material for electromagnetic flowmeter and preparation method thereof |
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Application publication date: 20170630 |