CN101230143A - Special type thermostable fluorine rubber compound - Google Patents
Special type thermostable fluorine rubber compound Download PDFInfo
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- CN101230143A CN101230143A CNA2007100565558A CN200710056555A CN101230143A CN 101230143 A CN101230143 A CN 101230143A CN A2007100565558 A CNA2007100565558 A CN A2007100565558A CN 200710056555 A CN200710056555 A CN 200710056555A CN 101230143 A CN101230143 A CN 101230143A
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- rubber
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- fluorine rubber
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Abstract
The invention relates to special high temperature resistant fluorine rubber mix. The special high temperature resistant fluorine rubber mix is prepared according to the following methods: an APA frame is polymerized in conventional fluorine rubber; Wool3BZ carbon fiber is adopted as a strengthening agent, and simultaneously active MgO (300A) and CaO are compounded; polychlorotrifluorobutylene is adopted as a plasticizer; a polyhydric alcohol curing system is utilized as a curing system; the common rubber processing machines are used to process, namely, the rubber compounding mill is used for the mixing, an extruding machine and a calendering machine are used for molding the uncured rubber, a flat vulcanizing machine and an injection moulding machine are used for curing, and then the secondary curing is preformed through the hot air cure and a curing pot; during the plasticization, the roller distance of a plasticator is 1 mm, the tight roll grinding is performed for two times, after a roller is wrapped by the raw rubber, a compounding agent can be added, when the roll temperature reaches 55 plus or minus 5 DEG C, the compounding agent is added additionally, and after mixing, slices are cut off, and excellent high temperature resistant and wide corrosion resistant fluid can be obtained. The rubber compound is suitable for the high temperature resistant, oil proof and corrosion resistant occasions, such as the spaceflight, the aviation, the vehicle, the mechanical metallurgy, the petroleum and chemical industry, and the electron, etc., such as, various crank seals and O-shaped ring fuel rubber hoses.
Description
Technical field
The invention belongs to rubber unvulcanizate high temperature resistant, resistant to chemical media, particularly a kind of special type thermostable fluorine rubber compound.
Background technology
Along with the fast development of China recent years, in the process of producing product of high-tech content, more and more use the fluorine rubber compound of extraordinary physicals at home.The special high temperature-resistant that China's space flight, automobile, defense industry are developed the particular requirement of viton, the fluorine rubber compound of resistant to chemical media.For example environmental regulations is leaked and the strictness day by day of emission control.Aircraft and space flight, car industry, chemical technology production and transportation need rubber industry that media-resistant reinforced seal part is provided, the light radiation sealing, and anti-leak, expanding connects packing ring specified shape product etc.
Purpose of the present invention
Summary of the invention
Technical problem to be solved by this invention is: a kind of special type thermostable fluorine rubber compound is provided.Reach high temperature resistant, resistant to chemical media
Technical scheme of the present invention is:
A kind of special type thermostable fluorine rubber compound is characterized in that: have following processing method to make: polymerization APA framework in conventional viton; Strengthening agent adopts the Wool3BZ carbon fiber, simultaneously adapted active MgO (300A) and CaO; Softening agent adopts poly-trifluoro chlorobutylene; Vulcanization system uses the polyvalent alcohol vulcanization system; Using general rubber processing machinery to process is mill mixing, forcing machine, rolling press moulding green compound, and vulcanizing press and injection moulding machine and vulcanize carry out post cure through hot-air vulcanization and vulcanizing boiler again; Roll spacing with plasticator when plasticating is adjusted into the 1mm thin-pass 2 times, can add Synergist S-421 95 behind the rubber bag roller, and the roller temperature adds Synergist S-421 95 for 55 ± 5 ℃ in addition, and mixing back is downcut sheet and obtained;
Sulfidation is divided post vulcanization, makes viton reach certain association at first sections, reaches certain styling; 170 ℃ * 20 minutes, second sections sulfuration made in the viton compound separation come to reach full cross-linked, improves its physicals, 230 ℃ of cure conditions * 4h hour.
Its physicals of rubber unvulcanizate after the sulfuration:
Tensile strength reaches 15Mpa
Tensile yield reaches 350%
Hardness can be adjusted between the 60-90 degree.
Effect of the present invention is:
Its every physical index all increases than the product that existing domestic-developed uses.Because of it has longer work-ing life, can prolong maintenance cycle, and reduce maintenance cost.Avoid the stopping production of some bursts,, can improve the security under a particular job environment after the use greatly high-tech content and high security industry.
Have outstanding resistance to elevated temperatures: rubber components can be interrupted the high temperature that affords 340 ℃ being subjected to high temperature deviation once in a while or increasing when decomposing and can use continuously because of improving temperature between 204 ℃ to 280 ℃, decomposition temperature reaches 460 ℃.And can under-40 ℃ of temperature, normally use.Prevent that at high temperature thermal failure from being the leading indicator of weighing sealing member.This product surpasses 10000 hours no age hardenings in 204 ℃ of air, applying unit can suitably improve its processing temperature to increase output.
Have erosion resistance liquid widely: can anti-automobile and aviation with oil, ethanol petrol, engine oil, virtue is oily, alkane is oily, alcohol ketone, acid, alkali etc., the corrosion under different temperature condition.Bear the change of various corrosive liquid environments simultaneously, and have multifunctionality, have a wide range of applications, can prolong the work-ing life of goods fully.
This project is to the special high temperature-resistant of the particular requirement development of viton, the fluorine rubber compound of resistant to chemical media at China's space flight, automobile, defense industry.Its every physical index all increases than the product that existing domestic-developed uses.Rubber components can use between 204 ℃ to 280 ℃ continuously, can be interrupted and bear 340 ℃ high temperature, and decomposition temperature reaches 460 ℃.Tensile strength reaches 15Mpa, and tensile yield reaches 350%, and state of the art reaches advanced international level.
This sizing material is applicable to space flight, aviation, automobile, mechanical metallurgy, petrochemical complex, electronics etc., high temperature resistant, oil resistant, corrosion resistant occasion.As various crankshaft seals, O shape circle fuel hose etc.
Embodiment
The concrete measured step of realizing of technology is rapid:
A, selection
Have the new generation product of advanced polymkeric substance framework, its characteristic is a polymerization APA framework in conventional viton, and guarantees excellent processing performance under number of chemical medium or fluid condition.
Reinforcement system is because product needed high tensile and low compression deformation rate.Now selected Wool3BZ carbon fiber produced in USA for use, because of its special length-to-diameter ratio and surfactivity naphthalene, in the course of processing, can be good at and the viton blend disperses, its sulfidation can with the fluorine molecule chain good connection under the some mirrors irradiation of 50,000 streams that interrelates by active naphthalene.Adapted active MgO (300A) and CaO reduce its compression set simultaneously, and softening agent is selected poly-trifluoro chlorobutylene for use.Vulcanization system uses polyvalent alcohol vulcanization system, the advantage that anti-scorch safety is high.
B, processing
In our design process, consider its processing characteristics all the time, we use general rubber processing machinery to process is mill mixing, forcing machine, rolling press moulding green compound, vulcanizing press and injection moulding machine and vulcanize carry out post cure through hot-air vulcanization and vulcanizing boiler again.
Plasticating is adjusted into the 1mm thin-pass 2 times with roll spacing, can add Synergist S-421 95 behind the rubber bag roller, and the roller temperature adds Synergist S-421 95, mixing cutting-out sheet for 55 ± 5 ℃ in addition.
C, sulfuration
Viton divides post vulcanization, makes viton reach certain association at first sections, reaches certain styling.170 ℃ * 20 minutes, post vulcanization made in the viton compound separation come to reach full cross-linked, improves its physicals, cure conditions 230 ℃ * 4 hours.
D, physicals
Rubber unvulcanizate tensile strength after the sulfuration reaches 15Mpa
Tensile yield reaches 350%
Hardness can be adjusted between the 60-90 degree.
The embodiment example: compound manufacture, its physical performance index is provided, the physical dimension of final product should be determined according to the practical situation of accessory by the user.
A. with the ethanol petrol resistant sebific duct fluorine glue of chloropharin glue bond
100 parts in extraordinary fluorine glue
Extra light calcined magnesia 150
#4---6 parts
Light calcium oxide 9,206 3---6 parts
Carbon black N990 15---20 parts
Palm wax 1---2 parts
Characteristic: anti--40 ℃ of insulations: EUROIII Emission Standard
B. the crankshaft oil seal of oil resistant
100 parts in extraordinary fluorine glue
Extra light calcined magnesia 150MgO 4---6 parts
Diatomite 15---20 parts
Ferric oxide 300 orders 1---3 parts
Palm wax 1---2 parts
Characteristic: 230 ℃ of high temperature oil, life-time service
C. ultrahigh-temperature hot air aging radiation O type circle
100 parts in extraordinary fluorine glue
Extra light calcined magnesia 150
#4---6 parts
Carbon fiber 3BI 15---18 parts
Light calcium oxide 9,206 2---6 parts
Poly-trifluoro chlorobutylene 1---2 parts
Characteristic: 300 ℃ of long term operations.
Claims (2)
1. a special type thermostable fluorine rubber compound is characterized in that: have following processing method to make: polymerization APA framework in conventional viton; Strengthening agent adopts the Wool3BZ carbon fiber, simultaneously adapted active MgO-300A and CaO; Softening agent adopts poly-trifluoro chlorobutylene; Vulcanization system uses the polyvalent alcohol vulcanization system; Using general rubber processing machinery to process is mill mixing, forcing machine, rolling press moulding green compound, and vulcanizing press and injection moulding machine and vulcanize carry out post cure through hot-air vulcanization and vulcanizing boiler again; Roll spacing with plasticator when plasticating is adjusted into the 1mm thin-pass 2 times, can add Synergist S-421 95 behind the rubber bag roller, and the roller temperature adds Synergist S-421 95 for 55 ± 5 ℃ in addition, and mixing back is downcut sheet and obtained;
Sulfidation is divided post vulcanization, makes viton reach certain association at first sections, reaches certain styling; 170 ℃ * 20 minutes, second sections sulfuration made in the viton compound separation come to reach full cross-linked, improves its physicals, cure conditions 230 ℃ * 4 hours.
2. special type thermostable fluorine rubber compound according to claim 1 is characterized in that:
Its physicals of rubber unvulcanizate after the sulfuration:
Tensile strength reaches 15Mpa
Tensile yield reaches 350%
Hardness can be adjusted between the 60-90 degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100565558A CN101230143A (en) | 2007-01-25 | 2007-01-25 | Special type thermostable fluorine rubber compound |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100565558A CN101230143A (en) | 2007-01-25 | 2007-01-25 | Special type thermostable fluorine rubber compound |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101230143A true CN101230143A (en) | 2008-07-30 |
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ID=39896988
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007100565558A Pending CN101230143A (en) | 2007-01-25 | 2007-01-25 | Special type thermostable fluorine rubber compound |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101230143A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105255074A (en) * | 2015-11-17 | 2016-01-20 | 安徽京鸿密封件技术有限公司 | Ventilating connection hose |
| CN113085318A (en) * | 2021-05-13 | 2021-07-09 | 河南理工大学 | Physical improvement method for thermal stability of high-temperature-resistant enhanced rubber component |
| CN113234295A (en) * | 2021-04-27 | 2021-08-10 | 南京固瑞橡胶有限公司 | Rubber plate containing flame-retardant components and preparation method thereof |
-
2007
- 2007-01-25 CN CNA2007100565558A patent/CN101230143A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105255074A (en) * | 2015-11-17 | 2016-01-20 | 安徽京鸿密封件技术有限公司 | Ventilating connection hose |
| CN113234295A (en) * | 2021-04-27 | 2021-08-10 | 南京固瑞橡胶有限公司 | Rubber plate containing flame-retardant components and preparation method thereof |
| CN113085318A (en) * | 2021-05-13 | 2021-07-09 | 河南理工大学 | Physical improvement method for thermal stability of high-temperature-resistant enhanced rubber component |
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| PB01 | Publication | ||
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20080730 |