CN102702625B - Formula of inner rubber layer of braking pipe with braking fluid resistance and production process of inner rubber layer - Google Patents
Formula of inner rubber layer of braking pipe with braking fluid resistance and production process of inner rubber layer Download PDFInfo
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- CN102702625B CN102702625B CN201210136616.2A CN201210136616A CN102702625B CN 102702625 B CN102702625 B CN 102702625B CN 201210136616 A CN201210136616 A CN 201210136616A CN 102702625 B CN102702625 B CN 102702625B
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Abstract
The invention discloses a formula of an inner rubber layer of a braking pipe with braking fluid resistance. The inner rubber layer comprises the following components in parts by mass: 100 parts of ethylene propylene diene monomer, 10-20 parts of chloroprene rubber, 5-15 parts of zinc oxide, 0.5-2 part(s) of stearic acid, 1-3 part(s) of anti-aging agent, 1-3 part(s) of polyethylene wax, 20-50 parts of fast-extruding furnace black N550, 20-50 parts of general furnace black N660, 2-5 parts of cross-linking agent Perkadox14, 0.5-2 part(s) of vulcanization addictive TAIC, 0.2-1 part of sulfur and 3-5 parts of magnesium oxide. According to the formula of the inner rubber layer of the braking pipe with braking fluid resistance, the ethylene propylene diene monomer with good heat resistance is combined with the chloroprene rubber, and two layers of vulcanization systems are adopted, so that the mechanical properties of the vulcanized rubber exceed the mechanical property sum values of two vulcanized rubber; after the produced braking pipe is soaked in DOT (department of transportation) liquid for 1,000 hours at 120 DEG C, the physical and mechanical properties of a rubber sheet is excellent, moreover, the tensile strength of the rubber sheet can reach 17.0 MPa, the elongation of the rubber sheet is about 340 percent, and the weight change rate of the rubber sheet is about +3 percent; and therefore, the requirement on the braking fluid resistant performance of the braking pipe is achieved, the aging of the braking pipe is slow, and the safety performance of the braking pipe is good.
Description
Technical field
The present invention relates to sebific duct technical field, specifically, is a kind of resistance to braking fluid brake pipe inner glue layer formula and production technique thereof.
Background technology
Brake pipe plays conveying braking fluid in automobile brake system, the effect of transmission brake pressure.Owing to being filled with for a long time DOT class braking fluid in brake pipe, sebific duct internal layer starting material are easily extracted also crystallization out or are deposited in brake pipe, and nacelle body causes use temperature to rise, can make sebific duct premature aging, lose result of use, so brake pipe at high temperature resistance to DOT ability determined Integral automobile security.In new standard, require the resistance to DOT performance of brake pipe inner glue layer to be: 120 DEG C of thermal ageing temperature, soak 1006 hours in DOT type braking fluid after, sizing material weight rate is+1%～+ 5%, and existing formula cannot reach requirement, cause brake pipe aging fast, poor safety performance.
Summary of the invention
The present invention is directed to existing formula and cannot reach requirement, cause brake pipe aging fast, the shortcomings such as poor safety performance, have proposed a kind of resistance to braking fluid brake pipe inner glue layer formula and production technique thereof.
Resistance to braking fluid brake pipe inner glue layer formula of the present invention, component and the ratio of quality and the number of copies of inner glue layer are as follows:
The production technique of resistance to braking fluid brake pipe inner glue layer of the present invention is:
1) terpolymer EP rubber, zinc oxide, stearic acid, anti-aging agent, polyethylene wax are pressurizeed banburying 3 minutes;
2) will extrude soon carbon black N550, general purpose furnace black N660 adds and carries out banburying 3 minutes again;
3) add again chloroprene rubber mixing, when temperature is raised to 90 DEG C, floating weight of banbury mixer is mentioned, after rubber unvulcanizate upset, floating weight of banbury mixer is fallen, when temperature is raised to 100 DEG C, again floating weight is mentioned, after rubber unvulcanizate upset, floating weight of banbury mixer is fallen, when temperature is raised to 120 DEG C, mention floating weight of banbury mixer, binder removal, cooling, lower;
4) by being cooled to 50 DEG C of following adhesive tape to be reentered in Banbury mixer, add linking agent Perkadox14, cocuring agent TAIC, Sulfur, magnesium oxide to carry out mixing, binder removal when temperature reaches 90 DEG C, lower.
The invention has the beneficial effects as follows: in resistance to braking fluid brake pipe inner glue layer formula of the present invention, good thermotolerance terpolymer EP rubber and chloroprene rubber are also used, adopt two-layer vulcanization system, the mechanical property that the mechanical property of gained cross-linked rubber exceedes two kinds of cross-linked rubbers adds and is worth, the brake pipe of producing in DOT liquid 120 DEG C soak after 1000 hours, the physical and mechanical properties excellence of film, tensile strength can reach 17.0MPa, elongation is 340% left and right, the weight rate of film is+3% left and right, reach the requirement of resistance to braking fluid performance, make brake pipe aging slow, safety performance is good.
Embodiment
Resistance to braking fluid brake pipe inner glue layer formula of the present invention:
Specific embodiment one:
The each component of brake pipe inner glue layer and mass fraction thereof are as follows:
Prepared above-mentioned employing formula brake pipe hose lining is got to dumbbell shape print, place it in 120 DEG C × 1006h in braking fluid DOT4, survey its performance, experimental data is as following table:
Specific embodiment two:
The each component of brake pipe inner glue layer and mass fraction thereof are as follows:
Prepared above-mentioned employing formula brake pipe hose lining is got to dumbbell shape print, place it in 120 DEG C × 1006h in braking fluid DOT4, survey its performance, experimental data is as following table:
The production technique of resistance to braking fluid brake pipe inner glue layer of the present invention is: by terpolymer EP rubber, zinc oxide, stearic acid, anti-aging agent, the polyethylene wax banburying of pressurizeing, to extrude soon again carbon black N550, general purpose furnace black N660 adds and carries out banburying 3 minutes, add again chloroprene rubber to carry out mixing, when temperature is raised to 90 DEG C, floating weight of banbury mixer is mentioned, after rubber unvulcanizate upset, floating weight of banbury mixer is fallen, when temperature is raised to 100 DEG C, floating weight is mentioned, after rubber unvulcanizate overturns again, floating weight of banbury mixer is fallen, when temperature is raised to 120 DEG C, mention floating weight binder removal, lower, cooling.In the time that adhesive tape is cooled to below 50 DEG C, again drop in Banbury mixer, add linking agent Perkadox14, cocuring agent TAIC, Sulfur, magnesium oxide to carry out mixing, binder removal when temperature reaches 90 DEG C, lower.
Claims (2)
1. a resistance to braking fluid brake pipe inner glue layer, is characterized in that, component and the ratio of quality and the number of copies of inner glue layer are as follows:
。
2. a production technique for resistance to braking fluid brake pipe inner glue layer as claimed in claim 1, is characterized in that, the production technique of resistance to braking fluid brake pipe inner glue layer is:
1) terpolymer EP rubber, zinc oxide, stearic acid, anti-aging agent, polyethylene wax are pressurizeed banburying 3 minutes;
2) will extrude soon carbon black N550, general purpose furnace black N660 adds and carries out banburying 3 minutes again;
3) add again chloroprene rubber mixing, when temperature is raised to 90 DEG C, floating weight of banbury mixer is mentioned, after rubber unvulcanizate upset, floating weight of banbury mixer is fallen, when temperature is raised to 100 DEG C, again floating weight is mentioned, after rubber unvulcanizate upset, floating weight of banbury mixer is fallen, when temperature is raised to 120 DEG C, mention floating weight of banbury mixer, binder removal, cooling, lower;
4) by being cooled to 50 DEG C of following adhesive tape to be reentered in Banbury mixer, add linking agent Perkadox14, cocuring agent TAIC, Sulfur, magnesium oxide to carry out mixing, binder removal when temperature reaches 90 DEG C, lower.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210136616.2A CN102702625B (en) | 2012-05-07 | 2012-05-07 | Formula of inner rubber layer of braking pipe with braking fluid resistance and production process of inner rubber layer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210136616.2A CN102702625B (en) | 2012-05-07 | 2012-05-07 | Formula of inner rubber layer of braking pipe with braking fluid resistance and production process of inner rubber layer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102702625A CN102702625A (en) | 2012-10-03 |
| CN102702625B true CN102702625B (en) | 2014-08-27 |
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| CN201210136616.2A Active CN102702625B (en) | 2012-05-07 | 2012-05-07 | Formula of inner rubber layer of braking pipe with braking fluid resistance and production process of inner rubber layer |
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Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103013013B (en) * | 2012-11-25 | 2015-10-21 | 马鞍山市中澜橡塑制品有限公司 | A kind of automobile cylinder protecgulum sealing member rubber and preparation method thereof |
| CN104448583A (en) * | 2014-11-25 | 2015-03-25 | 天津鹏翎胶管股份有限公司 | Ethylene-propylene-diene monomer rubber composition for high-strength brake fluid resistance rubber hose |
| CN104844869A (en) * | 2015-05-15 | 2015-08-19 | 无锡阳工机械制造有限公司 | Production process of automotive brake hose |
| CN104844867A (en) * | 2015-05-15 | 2015-08-19 | 无锡阳工机械制造有限公司 | Mixing process of automotive brake hose |
| CN105400088B (en) * | 2015-12-11 | 2017-12-01 | 中北大学 | A kind of ethylene propylene diene rubber and neoprene co-vulcanization material and preparation method thereof |
| CN105419126A (en) * | 2015-12-31 | 2016-03-23 | 崇夕山 | Rubber gasket for motorcycle engine |
| CN105419125A (en) * | 2015-12-31 | 2016-03-23 | 崇夕山 | Aging-resistant motorcycle engine rubber gasket |
| CN108662307B (en) * | 2018-03-30 | 2020-04-28 | 南通美莱达科技有限公司 | High-strength anti-aging anti-high-pulse flame-retardant hydraulic rubber tube and preparation method thereof |
| CN111925599A (en) * | 2020-06-29 | 2020-11-13 | 山东瀚邦胶带有限公司 | High-temperature-resistant 800-degree conveyor belt covering rubber and preparation method thereof |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1185427C (en) * | 2000-02-04 | 2005-01-19 | 株式会社明治橡胶化成 | Ultralow expansion brake rubber hose and its production method |
| CN201535398U (en) * | 2009-08-13 | 2010-07-28 | 浙江峻和橡胶科技有限公司 | Automobile brake rubber hose |
| CN202182263U (en) * | 2011-08-08 | 2012-04-04 | 四川川环科技股份有限公司 | Automobile-used low-expansion-amount hydraulic brake flexible pipe assembly |
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