CN104405807B - A kind of preparation method of automobile brake sheet - Google Patents
A kind of preparation method of automobile brake sheet Download PDFInfo
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- CN104405807B CN104405807B CN201410661300.4A CN201410661300A CN104405807B CN 104405807 B CN104405807 B CN 104405807B CN 201410661300 A CN201410661300 A CN 201410661300A CN 104405807 B CN104405807 B CN 104405807B
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Abstract
The present invention relates to material prescription of a kind of automobile brake sheet and preparation method thereof.Being made up through mould heat pressure shaping of following material, its material prescription specifically includes that assorted fibre that binder, surface treated cross, friction modifier, modified graphene, filler, lubricant, curing agent, accelerator, antioxidant, coupling agent.It is an advantage of the invention that, formula with the addition of modified graphene, and use the composition of phenol-formaldehyde resin modified as material binder, use the assorted fibre crossed through surface activation process as reinforcing fiber, thus solve conventional brake sheet coefficient of friction, wear rate index is low and brake noise is high problem, prepare that cohesive strength is high, heat decomposition temperature is high, good toughness and the high automobile brake sheet of adhesion strength.
Description
Technical field
The present invention relates to material prescription of a kind of automobile brake sheet and preparation method thereof, particularly relate to the preparation method of a kind of automobile brake sheet.
Background technology
High speed development along with automobile industry, user vehicle is more and more higher to the requirement of brake safe performance, brake block common on market mostly is asbestos friction material, in the case of emergency brake, coefficient of friction can drastically decline, and causes kinetic moment decline serious, the security that impact is driven, and asbestos material can produce a large amount of dust under the effect of high temperature wear, has carcinogenesis.
Excellent friction plate material should have good coefficient of friction and abrasion resistance properties, high elastic modelling quantity, enough mechanical strengths, high heat resistance and high thermal conductivity and thermal capacity, guarantee reaches to design miniaturization and the lightweight requiring, realizing system service life, and then improves mobility and the reliability of vehicle.Since Graphene in 2004 is found, being a kind of Two-dimensional Carbon nano material, it, as novel friction modifier, has far-reaching Research Significance to the wearability increasing automobile brake sheet.
Summary of the invention
Technical barrier to be solved by this invention is to overcome the deficiencies in the prior art, it is provided that a kind of automobile brake sheet, has mar proof and the mechanical strength of superelevation.
The technology of the present invention solution is, it is made up of the following raw material with parts by weight proportioning: binder 12～20 parts, reinforcing fiber 20～40 parts, friction modifier 6～18 parts, Graphene 4～8 parts, filler 40～60 parts, curing agent 2～6 parts, curing accelerator 0.3～1 part, antioxidant 3～6 parts, coupling agent 2～5 parts；Wherein, described reinforcing fiber is that described Graphene is modified Graphene through surface activation process, the assorted fibre of cladding anhydride group.
Described binder is the composition of phenol-formaldehyde resin modified, and this composition is by boron bakelite resin, benzenetriol-divinyl benzene polycondensate and silicone based rubber composition.
Described assorted fibre is mixed by carbon fiber, basalt fibre and aramid fiber and forms, and this assorted fibre is through surface activation process, the assorted fibre of cladding anhydride group.
Described friction modifier is formed by carborundum, graphite, aluminum oxide and acicular wollastonite are compounding.
Described filler is formed by barium sulfate, brium carbonate, Brown Alundum and petroleum coke are compounding.
Described curing agent is the mixture of hexamethylenetetramine and paratoluensulfonyl chloride.
Described curing accelerator is Toluene-2,4-diisocyanate, 4-bis-(N, N '-dimethylamino the third urea).
Described antioxidant be N, N'-double-(3-(3,5-di-tert-butyl-hydroxy phenyl) propiono) hexamethylene diamine and three [2,4-di-tert-butyl-phenyl] phosphite ester are that 5:1 ~ 3:1 is compounding according to mass ratio forms.
Described coupling agent is the mixture of silane coupler and zircoaluminate coupling agent.
The concrete step of preparation process of the present invention is as follows:
1) surface activation process of assorted fibre: assorted fibre is placed in plasma reaction chamber, first it is passed through high-purity argon gas 5～15min wherein, then pass to purity oxygen 5～10min, discharge process 3～7min under power 80～120W, obtain plasma-activated fiber, and the plasma-activated fiber obtained is placed in maleic anhydride xylene solvent carried out ultrasonically treated, finally under conditions of 150 DEG C～180 DEG C, carry out grafted maleic anhydride, obtain the assorted fibre of surface active.
2) preparation of modified graphene: first graphite oxide is positioned in DMF solvent, it is passed through nitrogen, continuously stirred 5min, add Toluene-2,4-diisocyanate, 4-diisocyanate mix and blend 12h, add a certain amount of dichloromethane to filter, finally the graphene oxide obtained use hydrofluoric acid is carried out reduction and obtain modified graphene.
3) by step 1) and 2) in assorted fibre and the modified graphene of gained and the composition of phenol-formaldehyde resin modified, friction modifier, filler be positioned in stirred tank stirring 10～30min, mixing speed is 1000～3000rpm, to be mixed uniformly after add curing agent, curing accelerator, antioxidant and coupling agent, continue mechanical agitation 10～20min, and under conditions of 160 DEG C～180 DEG C and 20～30MPa, carry out hot pressing shaping, finally utilize dry grinding equipment to be processed i.e. and can get high-performance environment protection type automobile brake sheet.
The advantage that the present invention is compared with prior art possessed is:
1) can there is well combination with matrix surface through modified Graphene, be uniformly dispersed, it is possible to compound the coefficient of friction improving automobile brake sheet with other friction modifiers.
2) surface activation process of assorted fibre can be effectively improved the interface compatibility of fiber and resin, thus is effectively improved the mechanical strength of automobile brake sheet.
3) present invention uses the composition of phenol-formaldehyde resin modified as material binder, it is possible to effectively increases heat resistance and the toughness of resin, thus improves the shock resistance of automobile brake sheet, elastic modelling quantity and heat resisting temperature.
Detailed description of the invention
Below the preferred embodiments of the present invention are described in detail, so that advantages and features of the invention can be easier to be readily appreciated by one skilled in the art, thus protection scope of the present invention are made apparent clear and definite defining.
Embodiment 1
First assorted fibre is placed in plasma reaction chamber, first it is passed through high-purity argon gas 5min wherein, then pass to purity oxygen 5min, discharge process 3min under power 80W, obtain plasma-activated fiber, and the plasma-activated fiber obtained is placed in maleic anhydride xylene solvent carried out ultrasonically treated, under conditions of 150 DEG C, finally carry out grafted maleic anhydride, obtain the assorted fibre of surface active.Then graphite oxide is positioned in DMF solvent, is passed through nitrogen, continuously stirred 5min, add Toluene-2,4-diisocyanate, 4-diisocyanate mix and blend 12h, adds a certain amount of dichloromethane and filters, and finally the graphene oxide obtained use hydrofluoric acid is carried out reduction and obtains modified graphene.Finally 20 parts of assorted fibres and 4 parts of modified graphenes and the composition of 12 parts of phenol-formaldehyde resin modifieds, 6 parts of friction modifiers, 40 parts of fillers are positioned in stirred tank stirring 10min, mixing speed is 1000rpm, 2 parts of curing agent of rear addition to be mixed, 0.3 part of curing accelerator, 3 parts of antioxidant and 2 parts of coupling agents, continue mechanical agitation 10min, and carry out hot pressing shaping under conditions of 160 DEG C and 20MPa, finally utilize dry grinding equipment to be processed i.e. and can get high-performance environment protection type automobile brake sheet.
Embodiment 2
First assorted fibre is placed in plasma reaction chamber, first it is passed through high-purity argon gas 10min wherein, then pass to purity oxygen 8min, discharge process 5min under power 100W, obtain plasma-activated fiber, and the plasma-activated fiber obtained is placed in maleic anhydride xylene solvent carried out ultrasonically treated, under conditions of 160 DEG C, finally carry out grafted maleic anhydride, obtain the assorted fibre of surface active.Then graphite oxide is positioned in DMF solvent, is passed through nitrogen, continuously stirred 5min, add Toluene-2,4-diisocyanate, 4-diisocyanate mix and blend 12h, adds a certain amount of dichloromethane and filters, and finally the graphene oxide obtained use hydrofluoric acid is carried out reduction and obtains modified graphene.Finally 30 parts of assorted fibres and 5 parts of modified graphenes and the composition of 15 parts of phenol-formaldehyde resin modifieds, 8 parts of friction modifiers, 50 parts of fillers are positioned in stirred tank stirring 20min, mixing speed is 2000rpm, 3 parts of curing agent of rear addition to be mixed, 0.5 part of curing accelerator, 4 parts of antioxidant and 4 parts of coupling agents, continue mechanical agitation 10min, and carry out hot pressing shaping under conditions of 170 DEG C and 25MPa, finally utilize dry grinding equipment to be processed i.e. and can get high-performance environment protection type automobile brake sheet.
Embodiment 3
First assorted fibre is placed in plasma reaction chamber, first it is passed through high-purity argon gas 15min wherein, then pass to purity oxygen 10min, discharge process 7min under power 120W, obtain plasma-activated fiber, and the plasma-activated fiber obtained is placed in maleic anhydride xylene solvent carried out ultrasonically treated, under conditions of 180 DEG C, finally carry out grafted maleic anhydride, obtain the assorted fibre of surface active.Then graphite oxide is positioned in DMF solvent, is passed through nitrogen, continuously stirred 5min, add Toluene-2,4-diisocyanate, 4-diisocyanate mix and blend 12h, adds a certain amount of dichloromethane and filters, and finally the graphene oxide obtained use hydrofluoric acid is carried out reduction and obtains modified graphene.Finally 40 parts of assorted fibres and 8 parts of modified graphenes and the composition of 20 parts of phenol-formaldehyde resin modifieds, 18 parts of friction modifiers, 60 parts of fillers are positioned in stirred tank stirring 30min, mixing speed is 3000rpm, 6 parts of curing agent of rear addition to be mixed, 1 part of curing accelerator, 6 parts of antioxidant and 5 parts of coupling agents, continue mechanical agitation 30min, and carry out hot pressing shaping under conditions of 180 DEG C and 30MPa, finally utilize dry grinding equipment to be processed i.e. and can get high-performance environment protection type automobile brake sheet.
Claims (9)
1. the preparation method of an automobile brake sheet, it is characterized in that: be made up of the raw material of following parts by weight proportioning: binder 12～20 parts, reinforcing fiber 20～40 parts, friction modifier 6～18 parts, Graphene 4～8 parts, filler 40～60 parts, curing agent 2～6 parts, curing accelerator 0.3～1 part, antioxidant 3～6 parts, coupling agent 2～5 parts；Wherein, described reinforcing fiber is through surface activation process, the assorted fibre of cladding anhydride group；Described Graphene is modified Graphene；Concrete step of preparation process is as follows:
1) surface activation process of assorted fibre: assorted fibre is placed in plasma reaction chamber, first it is passed through high-purity argon gas 5～15min wherein, then pass to purity oxygen 5～10min, discharge process 3～7min under power 80～120W, obtain plasma-activated fiber, and the plasma-activated fiber obtained is placed in maleic anhydride xylene solvent carried out ultrasonically treated, finally under conditions of 150 DEG C～180 DEG C, carry out grafted maleic anhydride, obtain the assorted fibre of surface active;
2) preparation of modified graphene: first graphite oxide is positioned in DMF solvent, it is passed through nitrogen, continuously stirred 5min, add Toluene-2,4-diisocyanate, 4-diisocyanate mix and blend 12h, add a certain amount of dichloromethane to filter, finally the graphene oxide obtained use hydrofluoric acid is carried out reduction and obtain modified graphene;
3) by above-mentioned steps 1) with 2) in the assorted fibre of gained be positioned in stirred tank stirring 10～30min with modified graphene and the composition of phenol-formaldehyde resin modified, friction modifier, filler, mixing speed is 1000～3000rpm, to be mixed uniformly after add curing agent, curing accelerator, antioxidant and coupling agent, continue mechanical agitation 10～20min, and under conditions of 160 DEG C～180 DEG C and 20～30MPa, carry out hot pressing shaping, finally utilize dry grinding equipment to be processed i.e. and can get high-performance environment protection type automobile brake sheet.
The preparation method of a kind of automobile brake sheet the most as claimed in claim 1, it is characterised in that: described binder is the composition of phenol-formaldehyde resin modified, and this composition is made up of boron bakelite resin, benzenetriol-divinyl benzene polycondensate and silicone based rubber.
The preparation method of a kind of automobile brake sheet the most as claimed in claim 1, it is characterized in that: described assorted fibre is mixed by carbon fiber, basalt fibre and aramid fiber and forms, and this assorted fibre is through surface activation process, the assorted fibre of cladding anhydride group.
The preparation method of a kind of automobile brake sheet the most as claimed in claim 1, it is characterised in that: described friction modifier is formed by carborundum, graphite, aluminum oxide and acicular wollastonite are compounding.
The preparation method of a kind of automobile brake sheet the most as claimed in claim 1, it is characterised in that: described filler is formed by barium sulfate, brium carbonate, Brown Alundum and petroleum coke are compounding.
The preparation method of a kind of automobile brake sheet the most as claimed in claim 1, it is characterised in that: described curing agent is the mixture of hexamethylenetetramine and paratoluensulfonyl chloride.
The preparation method of a kind of automobile brake sheet the most as claimed in claim 1, it is characterised in that: described curing accelerator is Toluene-2,4-diisocyanate, 4-bis-(N, N '-dimethylamino the third urea).
The preparation method of a kind of automobile brake sheet the most as claimed in claim 1; it is characterized in that: described antioxidant is N; N'-pair-(3-(3; 5-di-tert-butyl-hydroxy phenyl) propiono) hexamethylene diamine and three [2,4-di-tert-butyl-phenyl] phosphite ester form according to mass ratio 5:1 ~ 3:1 is compounding.
The preparation method of a kind of automobile brake sheet the most as claimed in claim 1, it is characterised in that: described coupling agent is the mixture of silane coupler and zircoaluminate coupling agent.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410661300.4A CN104405807B (en) | 2014-11-19 | 2014-11-19 | A kind of preparation method of automobile brake sheet |
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| CN201410661300.4A CN104405807B (en) | 2014-11-19 | 2014-11-19 | A kind of preparation method of automobile brake sheet |
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| CN104405807A CN104405807A (en) | 2015-03-11 |
| CN104405807B true CN104405807B (en) | 2016-08-24 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| ITTO20150243A1 (en) * | 2015-05-07 | 2016-11-07 | Itt Italia Srl | FRICTION MATERIAL, ESPECIALLY FOR THE MANUFACTURE OF A BRAKE PAD, AND ASSOCIATED METHOD OF PREPARATION |
| CN105482361B (en) * | 2016-01-12 | 2018-03-16 | 山东佳星环保科技有限公司 | A kind of graphene-based wear-resisting composite lubricated material and preparation method thereof |
| CN105909707B (en) * | 2016-01-31 | 2018-09-25 | 摩擦一号制动科技（仙桃）有限公司 | A kind of graphene-containing high-quality friction material composition |
| CN106117955B (en) * | 2016-06-29 | 2018-09-21 | 黄石金朝阳粉末材料有限责任公司 | Basalt ultra-fine fibre is used to prepare to the methods and applications of brake block |
| CN106246775B (en) * | 2016-08-22 | 2018-08-28 | 安徽双松铸造有限责任公司 | Add the brake shoe production technology of modified nano graphite alkene |
| CN106523514A (en) * | 2016-11-10 | 2017-03-22 | 长春安旨科技有限公司 | High-temperature resisting macromolecule self-lubricating bearing and preparing method thereof |
| CN106763355A (en) * | 2016-11-10 | 2017-05-31 | 厦门市双晋材料科技有限公司 | A kind of friction material and the brake block with the friction material |
| CN106567897B (en) * | 2016-11-13 | 2019-04-16 | 青岛方冠摩擦材料有限公司 | A kind of preparation method of NEW TYPE OF COMPOSITE wear brake pad |
| CN106634831A (en) * | 2016-12-05 | 2017-05-10 | 钦州市钦南区生产力促进中心 | Automobile brake pad material and preparation method thereof |
| CN106641033B (en) * | 2016-12-23 | 2019-08-02 | 北京天宜上佳新材料股份有限公司 | A kind of friction material includes its locomotive brake shoe and preparation method |
| CN106930138A (en) * | 2017-03-03 | 2017-07-07 | 西北工业大学 | A kind of Graphene is modified paper friction material and preparation method |
| CN107011859B (en) * | 2017-03-17 | 2018-10-02 | 宁波高新区远创科技有限公司 | A kind of preparation method of heat conduction friction braking material |
| CN106987231B (en) * | 2017-05-05 | 2018-11-23 | 西南大学 | The heterogeneous couplings of zirconium phosphonate graphene oxide are preparing the application in friction material |
| CN107011626B (en) * | 2017-05-09 | 2019-05-17 | 西南大学 | Friction material containing organic modified zirconium phosphate |
| CN107387616A (en) * | 2017-08-08 | 2017-11-24 | 长沙五犇新材料科技有限公司 | One kind friction layer material |
| CN107893330A (en) * | 2017-12-28 | 2018-04-10 | 安徽宏实光机电高科有限公司 | A kind of preparation method of plasma grafting processing complex fiber material |
| CN108570209B (en) * | 2018-03-08 | 2020-10-13 | 山东金麒麟股份有限公司 | Aluminum zirconium-silane coupling agent synergistically modified resin material for semi-metal disc brake pad and application |
| CN112343947B (en) * | 2019-07-03 | 2022-07-19 | 晋江市凯燕新材料研究院股份有限公司 | Copper-free asbestos-free organic friction material with reinforcing material and product |
| CN111101082B (en) * | 2019-12-25 | 2021-02-02 | 杭州安耐特实业有限公司 | Metal ceramic composite material for new energy automobile brake pad and preparation method thereof |
| CN113294464A (en) * | 2021-05-26 | 2021-08-24 | 广西荣昇新材料有限公司 | Copper powder composite material for train brake pad and preparation method thereof |
| CN114574161B (en) * | 2022-03-29 | 2023-04-25 | 扬州工业职业技术学院 | Friction material for brake pad |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103409109A (en) * | 2013-08-14 | 2013-11-27 | 浙江铭泰汽车零部件有限公司 | Friction material used in disc brake |
| CN103436236A (en) * | 2013-08-28 | 2013-12-11 | 李美凤 | Palm fiber-reinforced environment-friendly type brake pad and preparation method thereof |
| CN103629281A (en) * | 2013-11-15 | 2014-03-12 | 宁国飞鹰汽车零部件股份有限公司 | Ceramic high-performance disc brake pad for bus and manufacturing method thereof |
| CN104017541A (en) * | 2014-05-19 | 2014-09-03 | 李鹏 | Wear-resistant material for ceramic brake pads |
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Effective date of registration: 20180516 Address after: 201822 J3330 room 912, Yecheng Road, Jiading Industrial Zone, Jiading District, Shanghai. Patentee after: Shanghai Mstar Technology Ltd Address before: 224007 69 East Ring Road, Yancheng City economic and Technological Development Zone, Jiangsu Patentee before: Jiangsu Yueda novel material Science and Technology Ltd. |
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Address after: Room j653, building 6, 1288 Yecheng Road, Jiading District, Shanghai, 201822 Patentee after: Zhongke Yueda (Shanghai) material technology Co.,Ltd. Address before: 201822 J3330 room 912, Yecheng Road, Jiading Industrial Zone, Jiading District, Shanghai. Patentee before: Shanghai Ewang Material Technology Co.,Ltd. |
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