CN103102526B - Packing leather cup rubber for brake wheel cylinder of automobile and preparation method thereof - Google Patents
Packing leather cup rubber for brake wheel cylinder of automobile and preparation method thereof Download PDFInfo
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- CN103102526B CN103102526B CN201210530918.8A CN201210530918A CN103102526B CN 103102526 B CN103102526 B CN 103102526B CN 201210530918 A CN201210530918 A CN 201210530918A CN 103102526 B CN103102526 B CN 103102526B
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Abstract
The invention discloses packing leather cup rubber for a brake wheel cylinder of an automobile. The packing leather cup rubber is prepared from the following raw materials in parts by weight: 30-40 parts of nitrile rubber, 20-30 parts of isoprene rubber, 20-40 parts of ethylene propylene terpolymer 5962 (LANXESS Deutschland), 10-15 parts of fluorosilicone rubber, 3-5 parts of natural rubber, 20-30 parts of fast extruding furnace black N550, 10-15 parts of modified white carbon black, 3-4 parts of graphite, 8-10 parts of modified wood ash, 4-6 parts of talcum powder, 4-6 parts of meerschaum, 9-11 parts of modified iron tailing slag powder, 0.5-1 part of N,N'-m-phenylene bismaleimide, 0.5-1 part of vulcanizing agent BP, 0.2-0.4 part of accelerant M, 0.3-0.6 part of accelerant TT, 1-2 parts of calcium stearate, 2-4 parts of zinc oxide, 0.2-0.4 part of ferrocene, 1-2 parts of rice bran wax, 1-2 parts of triphenyl phosphite, 1-2 parts of anti-aging agent RD, 2-3 parts of N-2-(aminoethyl)-3-aminopropyl trimethoxysilane and 16-18 parts of butyl epoxy oleate. The rubber disclosed by the invention has excellent ozone resistance, excellent low temperature resistance and heat resistance and is large in operating temperature range and environment-friendly in process, so that the rubber can be used for preparing various packing materials.
Description
Technical field
The present invention relates to synthetic rubber field, be specifically related to a kind of wheel cylinder sealing rubber cup of automotive brake and preparation method thereof.
Background technology
Rubber cup mainly refers to the rubber seal being applied in and playing transmission of pressure and sealing function in car, Light-duty Vehicle, minibus, the brake fluid system of part bogie and clutch operating system, booster pump system.Rubber cup is also applied on household electrical appliance, as being used in the rubber cup on two-tub washing machine cylinder body, plays sealing function to cylinder body.Rubber cup a kind ofly in rubber item is widely used one of important rubber product of function.
The principal feature of rubber cup:
1) leather cup in master cylinder and wheel cylinder must have certain elasticity and compression set and wear resistance, to ensure that leather cup in use has the certain return ability and sealing property transmitting hydraulic pressure.2) at high temperature, (under 100 ~ 120 DEG C and low temperature (-30 ~ 50 DEG C), hydraulic pressure resistant medium is good, leather cup long period in braking sealing device contacts with braking fluid, therefore require that it has good anti swelling to braking fluid (synthesis liquid, mineral oil), do not allow, under high temperature, low temperature and static room temperature, seepage occurs.
Major ingredient when rubber cup is produced in prior art mostly is rubber paracril, paracril to have oil-proofness fabulous, wear resistance is higher, and thermotolerance is better, and bonding force is strong, but its lower temperature resistance is poor, ozone resistance is poor, electrical property is inferior, and elasticity is low, uses for a long time at low ambient temperatures, its sealing property can reduce greatly, needs to improve existing cup rubber material formula.
Summary of the invention
The invention provides a kind of wheel cylinder sealing rubber cup of automotive brake and preparation method thereof, sizing material of the present invention has excellent high-low temperature resistant, oil resistant, solvent resistant and chemical resistance, simultaneously good mechanical property.
The present invention adopts following technical scheme:
A kind of wheel cylinder sealing rubber cup of automotive brake, it is characterized in that, be made up of following raw materials in part by weight: paracril 30-40, polyisoprene rubber 20-30, the bright Sheng of terpolymer EP rubber 5962(Germany) 20-40, trifluoropropyl siloxane 10-15, natural rubber 3-5, fast extrusion carbon black N550 20-30, modified white carbon black 10-15, graphite 3-4, modification tree ash 8-10, talcum powder 4-6, sepiolite 4-6, Modified Iron mine tailing ground-slag 9-11, N, a N '-penylene bismaleimides 0.5 ~ 1, vulcanizing agent BP0.5 ~ 1, captax 0.2-0.4, promotor TT 0.3-0.6, calcium stearate 1-2, zinc oxide 2-4, ferrocene 0.2-0.4, rice bran wax 1-2, triphenyl phosphite 1-2, anti-aging agent RD 1-2, N-2-(aminoethyl)-3-aminopropyl trimethoxysilane 2-3, epoxyoleic acid butyl ester 16-18.
Described a kind of wheel cylinder sealing rubber cup of automotive brake, it is characterized in that, be made up of following raw materials in part by weight: paracril 35, polyisoprene rubber 25, the bright Sheng of terpolymer EP rubber 5962(Germany) 24, trifluoropropyl siloxane 12, natural rubber 4, fast extrusion carbon black N550 25, modified white carbon black 12, graphite 3, modification tree ash 9, talcum powder 5, sepiolite 5, Modified Iron mine tailing ground-slag 10, N, a N '-penylene bismaleimides 0.7, vulcanizing agent BP0.5 ~ 1, captax 0.3, promotor TT 0.5, calcium stearate 2, zinc oxide 4, ferrocene 0.3, rice bran wax 1, triphenyl phosphite 1.5, anti-aging agent RD 1.5, N-2-(aminoethyl)-3-aminopropyl trimethoxysilane 2, epoxyoleic acid butyl ester 18.
The preparation method of described a kind of wheel cylinder sealing rubber cup of automotive brake, is characterized in that, comprise the following steps:
(1) preparation method of modification tree ash:
The sericite-tridymite-cristobalite of tree ash weight 1-2% is joined in tree ash and mixes, with 15-20% salt acid soak 1-2 hour, wash with water to neutrality, after oven dry, add the trisodium phosphate of aluminate coupling agent DL-411, the 1-2% being equivalent to solid weight 0.5-1.0%, 1-2% sodium laurylsulfate, 3-5% aluminium sesquioxide, with the speed high-speed stirring of 1200-1500 rev/min, obtain dispersion liquid, dispersion liquid is dried, is ground into powder, obtains modification tree ash;
(2) preparation of Modified Iron mine tailing ground-slag:
By scaling loss 4-6 hour at iron tailings slag 900-1000 DEG C, then grind to form nanometer powder, then it is even to admix the molybdenum oxide, the calcium lignin sulphonate of 1-2%, the 1-2% dimethyl silicone oil agitating that are equivalent to powder weight 1-2%, dries, grind to form nanometer powder, obtain Modified Iron mine tailing ground-slag;
(3) preparation of modified white carbon black:
By white carbon black scaling loss 2-3 hour at 400-450 DEG C, then grind to form nanometer powder, then admix the calcium lignin sulphonate of coupling agent Si-69,1-2% of being equivalent to powder weight 4-6%, 1-2% dimethyl silicone oil agitating is even, dry, grind to form nanometer powder, obtain the white carbon black of modification;
(4) N-2-(aminoethyl is got)-3-aminopropyl trimethoxysilane;
(5) by formula rate by modification tree ash, fast extrude carbon black N550, drop in high-speed mixer, with the speed high-speed stirring of 1000-1200 rev/min, simultaneously by coupling agent N-2-(aminoethyl)-3-aminopropyl trimethoxysilane is sprayed onto in mixed fillers, continue to stir 5-6 minute, discharging cooling is for subsequent use, obtains mixture;
(6) by paracril, polyisoprene rubber, terpolymer EP rubber 5962(Germany bright Sheng), trifluoropropyl siloxane, natural rubber, Modified Iron mine tailing ground-slag, modified white carbon black, drop in Banbury mixer, plasticate at the temperature of 70-75 DEG C, after plasticating 14-16 minute, when temperature reaches 85-95 DEG C, start discharge, after discharge, park cooling 10-12 hour;
(7) by formula rate, above-mentioned cooled broken-(down)rubber is joined in Banbury mixer, add the compound of step (5) again, after mixing 2-3 minute, after adding the mixing 10-15 of other leftover materials minute in formula beyond sulphur removal agent and promotor class again, when temperature reaches 90-98 DEG C, start discharge, after discharge, park cooling 12-14 hour;
(8) above-mentioned mixing materials is dropped in mill, then vulcanizing agent, promotor class are added in rubber unvulcanizate, thin-pass 3-4 time, processing temperature≤60 DEG C of mill.
beneficial effect
The present invention is by paracril and other several compounding rubber, improve the over-all properties of rubber unvulcanizate, by tree ash, white carbon black carries out modification respectively, tail Iron-ore Slag is carried out modification simultaneously, then mix with carbon black, use coupling agent treatment again, use as strengthening agent, improve the dispersiveness of filler in rubber unvulcanizate, improve filler addition, reduce material cost, the ozone resistance of the rubber unvulcanizate of gained and resistance to low temperature, resistance toheat improves greatly, than paracril itself, there is wider use temperature scope, better performance of technical process, lower starting material and production cost, meet the performance requriements of production domesticization component.
Embodiment
A preparation for wheel cylinder sealing rubber cup of automotive brake,
First following raw materials (kg) is taken by recipe requirements: paracril 35, polyisoprene rubber 25, the bright Sheng of terpolymer EP rubber 5962(Germany) 24, trifluoropropyl siloxane 12, natural rubber 4, fast extrusion carbon black N550 25, modified white carbon black 12, graphite 3, modification tree ash 9, talcum powder 5, sepiolite 5, Modified Iron mine tailing ground-slag 10, N, a N '-penylene bismaleimides 0.7, captax 0.3, promotor TT 0.5 0.6, calcium stearate 2, zinc oxide 4, ferrocene 0.3, rice bran wax 1, triphenyl phosphite 1.5, anti-aging agent RD 1.5, N-2-(aminoethyl)-3-aminopropyl trimethoxysilane 2, epoxyoleic acid butyl ester 18.
Preparation method comprises the following steps:
(1) preparation method of modification tree ash:
The sericite-tridymite-cristobalite of tree ash weight 1-2% is joined in tree ash and mixes, with 15-20% salt acid soak 1-2 hour, wash with water to neutrality, after oven dry, add the trisodium phosphate of aluminate coupling agent DL-411, the 1-2% being equivalent to solid weight 0.5-1.0%, 1-2% sodium laurylsulfate, 3-5% aluminium sesquioxide, with the speed high-speed stirring of 1200-1500 rev/min, obtain dispersion liquid, dispersion liquid is dried, is ground into powder, obtains modification tree ash;
(2) preparation of Modified Iron mine tailing ground-slag:
By scaling loss 4-6 hour at iron tailings slag 900-1000 DEG C, then grind to form nanometer powder, then it is even to admix the molybdenum oxide, the calcium lignin sulphonate of 1-2%, the 1-2% dimethyl silicone oil agitating that are equivalent to powder weight 1-2%, dries, grind to form nanometer powder, obtain Modified Iron mine tailing ground-slag;
(3) preparation of modified white carbon black:
By white carbon black scaling loss 2-3 hour at 400-450 DEG C, then grind to form nanometer powder, then admix the calcium lignin sulphonate of coupling agent Si-69,1-2% of being equivalent to powder weight 4-6%, 1-2% dimethyl silicone oil agitating is even, dry, grind to form nanometer powder, obtain the white carbon black of modification;
(4) N-2-(aminoethyl is got)-3-aminopropyl trimethoxysilane;
(5) by formula rate by modification tree ash, fast extrude carbon black N550, drop in high-speed mixer, with the speed high-speed stirring of 1000-1200 rev/min, simultaneously by coupling agent N-2-(aminoethyl)-3-aminopropyl trimethoxysilane is sprayed onto in mixed fillers, continue to stir 5-6 minute, discharging cooling is for subsequent use, obtains mixture;
(6) by paracril, polyisoprene rubber, terpolymer EP rubber 5962(Germany bright Sheng), trifluoropropyl siloxane, natural rubber, Modified Iron mine tailing ground-slag, modified white carbon black, drop in Banbury mixer, plasticate at the temperature of 70-75 DEG C, after plasticating 14-16 minute, when temperature reaches 85-95 DEG C, start discharge, after discharge, park cooling 10-12 hour;
(7) by formula rate, above-mentioned cooled broken-(down)rubber is joined in Banbury mixer, add the compound of step (5) again, after mixing 2-3 minute, after adding the mixing 10-15 of other leftover materials minute in formula beyond sulphur removal agent and promotor class again, when temperature reaches 90-98 DEG C, start discharge, after discharge, park cooling 12-14 hour;
(8) above-mentioned mixing materials is dropped in mill, then vulcanizing agent, promotor class are added in rubber unvulcanizate, thin-pass 3-4 time, processing temperature≤60 DEG C of mill.
experimental data
The sizing material processed the present embodiment makes a service test detection, and detected result is as follows:
Tensile strength MPa:23, elongation rate of tensile failure %:430, tear strength KN/m:30, after resistance to 3# oil 100 DEG C soaks 72h: volume change % 11.2, resistance to low temperature: place 48h under the environment of-40 DEG C, seminess does not appear in rubber.
Claims (2)
1. a wheel cylinder sealing rubber cup of automotive brake, it is characterized in that, be made up of following raw materials in part by weight: paracril 30-40, polyisoprene rubber 20-30, terpolymer EP rubber 5962 20-40, trifluoropropyl siloxane 10-15, natural rubber 3-5, fast extrusion carbon black N550 20-30, modified white carbon black 10-15, graphite 3-4, modification tree ash 8-10, talcum powder 4-6, sepiolite 4-6, Modified Iron mine tailing ground-slag 9-11, N, a N '-penylene bismaleimides 0.5 ~ 1, vulcanizing agent BP 0.5 ~ 1, captax 0.2-0.4, promotor TT 0.3-0.6, calcium stearate 1-2, zinc oxide 2-4, ferrocene 0.2-0.4, rice bran wax 1-2, triphenyl phosphite 1-2, anti-aging agent RD 1-2, N-2-(aminoethyl)-3-aminopropyl trimethoxysilane 2-3, epoxyoleic acid butyl ester 16-18,
The preparation method of described wheel cylinder sealing rubber cup of automotive brake, comprises the following steps:
(1) preparation method of modification tree ash:
The sericite-tridymite-cristobalite of tree ash weight 1-2% is joined in tree ash and mixes, use 15-20% salt acid soak 1-2 hour again, wash with water to neutrality, after oven dry, add the trisodium phosphate of aluminate coupling agent DL-411, the 1-2% being equivalent to solid weight 0.5-1.0%, 1-2% sodium laurylsulfate, 3-5% aluminium sesquioxide, with the speed high-speed stirring of 1200-1500 rev/min, obtain dispersion liquid, dispersion liquid is dried, is ground into powder, obtains modification tree ash;
(2) preparation of Modified Iron mine tailing ground-slag:
By scaling loss 4-6 hour at iron tailings slag 900-1000 DEG C, then grind to form nanometer powder, then it is even to admix the molybdenum oxide, the calcium lignin sulphonate of 1-2%, the 1-2% dimethyl silicone oil agitating that are equivalent to powder weight 1-2%, dries, grind to form nanometer powder, obtain Modified Iron mine tailing ground-slag;
(3) preparation of modified white carbon black:
By white carbon black scaling loss 2-3 hour at 400-450 DEG C, then grind to form nanometer powder, then admix the calcium lignin sulphonate of coupling agent Si-69,1-2% of being equivalent to powder weight 4-6%, 1-2% dimethyl silicone oil agitating is even, dry, grind to form nanometer powder, obtain the white carbon black of modification;
(4) N-2-(aminoethyl is got)-3-aminopropyl trimethoxysilane;
(5) by formula rate by modification tree ash, fast extrude carbon black N550, drop in high-speed mixer, with the speed high-speed stirring of 1000-1200 rev/min, simultaneously by coupling agent N-2-(aminoethyl)-3-aminopropyl trimethoxysilane is sprayed onto in mixed fillers, continue to stir 5-6 minute, discharging cooling is for subsequent use, obtains mixture;
(6) by paracril, polyisoprene rubber, terpolymer EP rubber 5962, trifluoropropyl siloxane, natural rubber, Modified Iron mine tailing ground-slag, modified white carbon black, drop in Banbury mixer, plasticate at the temperature of 70-75 DEG C, after plasticating 14-16 minute, when temperature reaches 85-95 DEG C, start discharge, after discharge, park cooling 10-12 hour;
(7) by formula rate, above-mentioned cooled broken-(down)rubber is joined in Banbury mixer, add the mixture of step (5) again, after mixing 2-3 minute, after adding the mixing 10-15 of other leftover materials minute in formula beyond sulphur removal agent and promotor class again, when temperature reaches 90-98 DEG C, start discharge, after discharge, park cooling 12-14 hour;
(8) above-mentioned mixing materials is dropped in mill, then vulcanizing agent, promotor class are added in rubber unvulcanizate, thin-pass 3-4 time, processing temperature≤60 DEG C of mill.
2. a kind of wheel cylinder sealing rubber cup of automotive brake according to claim 1, it is characterized in that, be made up of following raw materials in part by weight: paracril 35, polyisoprene rubber 25, terpolymer EP rubber 5,962 24, trifluoropropyl siloxane 12, natural rubber 4, fast extrusion carbon black N550 25, modified white carbon black 12, graphite 3, modification tree ash 9, talcum powder 5, sepiolite 5, Modified Iron mine tailing ground-slag 10, N, a N '-penylene bismaleimides 0.7, vulcanizing agent BP 0.7, captax 0.3, promotor TT 0.5, calcium stearate 2, zinc oxide 4, ferrocene 0.3, rice bran wax 1, triphenyl phosphite 1.5, anti-aging agent RD 1.5, N-2-(aminoethyl)-3-aminopropyl trimethoxysilane 2, epoxyoleic acid butyl ester 18.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210530918.8A CN103102526B (en) | 2012-12-11 | 2012-12-11 | Packing leather cup rubber for brake wheel cylinder of automobile and preparation method thereof |
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| CN201210530918.8A CN103102526B (en) | 2012-12-11 | 2012-12-11 | Packing leather cup rubber for brake wheel cylinder of automobile and preparation method thereof |
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| CN103102526A CN103102526A (en) | 2013-05-15 |
| CN103102526B true CN103102526B (en) | 2015-05-13 |
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| CN201210530918.8A Expired - Fee Related CN103102526B (en) | 2012-12-11 | 2012-12-11 | Packing leather cup rubber for brake wheel cylinder of automobile and preparation method thereof |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103665481A (en) * | 2013-11-18 | 2014-03-26 | 蚌埠市时代电子有限公司 | Compound rubber sealing gasket material with favorable wear resistance and sealing performance and preparation method of compound rubber sealing gasket material |
| CN103665472A (en) * | 2013-11-18 | 2014-03-26 | 蚌埠市时代电子有限公司 | Sealing gasket material formed by mixing multiple rubbers and preparation method thereof |
| CN103725005A (en) * | 2013-12-13 | 2014-04-16 | 芜湖佳诚电子科技有限公司 | Oil-proof leather cup material |
| CN103756044A (en) * | 2013-12-13 | 2014-04-30 | 芜湖金鹰机械科技开发有限公司 | Automobile hydraulic brake rubber cup material |
| CN103724726A (en) * | 2013-12-13 | 2014-04-16 | 芜湖金鹰机械科技开发有限公司 | Piston cup rubber |
| CN108822370B (en) * | 2018-05-29 | 2020-05-22 | 宁国市兴源橡胶制品有限公司 | Rubber cup for automobile braking |
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| CN1438261A (en) * | 2003-03-10 | 2003-08-27 | 焦学明 | Material for making piston rubber-rup of slurry pump |
| CN101381211A (en) * | 2008-10-16 | 2009-03-11 | 中国科学院长春应用化学研究所 | Method for preparing building mould using various solid wastes |
| CN101870138A (en) * | 2010-06-12 | 2010-10-27 | 王�琦 | Preparation method for manufacturing building board by utilizing mine tailing residue |
| CN101993679A (en) * | 2009-08-28 | 2011-03-30 | 曹年生 | Sealant |
| CN102153792A (en) * | 2011-03-17 | 2011-08-17 | 株洲安宝麟锋新材料有限公司 | Preparation method of wet process mixed natural rubber material |
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2012
- 2012-12-11 CN CN201210530918.8A patent/CN103102526B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1438261A (en) * | 2003-03-10 | 2003-08-27 | 焦学明 | Material for making piston rubber-rup of slurry pump |
| CN101381211A (en) * | 2008-10-16 | 2009-03-11 | 中国科学院长春应用化学研究所 | Method for preparing building mould using various solid wastes |
| CN101993679A (en) * | 2009-08-28 | 2011-03-30 | 曹年生 | Sealant |
| CN101870138A (en) * | 2010-06-12 | 2010-10-27 | 王�琦 | Preparation method for manufacturing building board by utilizing mine tailing residue |
| CN102153792A (en) * | 2011-03-17 | 2011-08-17 | 株洲安宝麟锋新材料有限公司 | Preparation method of wet process mixed natural rubber material |
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