CN101381484A - High friction coefficient synthetic materials and preparation method thereof - Google Patents
High friction coefficient synthetic materials and preparation method thereof Download PDFInfo
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- CN101381484A CN101381484A CNA2008102256303A CN200810225630A CN101381484A CN 101381484 A CN101381484 A CN 101381484A CN A2008102256303 A CNA2008102256303 A CN A2008102256303A CN 200810225630 A CN200810225630 A CN 200810225630A CN 101381484 A CN101381484 A CN 101381484A
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Abstract
The invention discloses a high friction coefficient composite material and a manufacturing method thereof, wherein the material is prepared through material sealing and grain-making processing by the following compositions in weight percentage: 8 to 13 percent of butadiene-acrylonitrile rubber, 2 to 10 percent of styrene-butadiene rubber, 5 to 10 percent of cresol methyl-stage phenol-formaldehyde resin modified, 15 to 30 percent of steel fiber, 10 to 15 percent of magnesia, 5 to 10 percent of calcined petroleum coke, 2 to 5 percent of silicon carbide, 10 to 25 percent of mineral fiber, 5 to 10 percent of calcium hydroxide, 10 to 20 percent of barium sulfate, 5 to 10 percent of graphite, 1 to 5 percent of supramoly, 1 to 5 percent of carbon black, 1 to 3 percent of sulfur and 1 to 3 percent of accelerant. The material can be applied in a plurality of situations to prepare friction components, has stable friction performance and good abrasion resistance, effectively inhibits the phenomena of metal inlay, cracking, chip off-falling and so on, reduces the damage on vehicle wheels, has good impact resistance and good weathering resistance, can be used in the environment with large temperature variation for a long time, and has the application characteristics of wide application region and large difference of the regional environment.
Description
Technical field
The present invention relates to the preparation field of friction materials, relate in particular to a kind of high friction coefficient synthetic materials and preparation method thereof.
Background technology
Friction materials is used very extensive, all to use this material as the brake shoe of locomotive brake, the stopper of subway train, the stopper of bullet train etc., but existing friction materials is used in the common occasion, generally can meet the demands, and then can't reach corresponding requirement but be used in some special occasions.
As being example with the railway freight-car, now adopting with the resin mostly with brake shoe with the braking of railway freight-car is the material of bonding system, be prepared from through hot-forming, the brake shoe of this material preparation is at car weight 80T, under 80 kilometers conditions of speed per hour, its performance can satisfy brake request substantially, but the contriver finds, railway freight-car is in heavy duty, under the situation of running at high speed, heavily be higher than 80 tons as railway freight-car, speed per hour is greater than under 80 kilometers conditions, when braking, require frictional force bigger, temperature tolerance to brake shoe all has very high requirement, existing is the brake shoe of the material preparation of bonding system with the resin, exist frictional behaviour stable inadequately, the friction piece easy fracture, fall piece, damascene is serious, easily causes the wheel cut, thermal damage, phenomenons such as be full of cracks jeopardize traffic safety, and work-ing life is short, can't satisfy existing heavy duty, brake request in the travelling of high-speed railway lorry.
The material that therefore need prepare a kind of great friction coefficient satisfies existing friction materials and can't reach high speed, heavy haul railway vehicle braked part requirement.
Summary of the invention
Based on the problem that above-mentioned prior art exists, embodiment of the present invention provides a kind of high friction coefficient synthetic materials and preparation method thereof, can be used for preparing friction means, satisfies the requirement of the applied great friction coefficient brake component of multiple occasion.
The objective of the invention is to be achieved through the following technical solutions:
Embodiment of the present invention provides a kind of high friction coefficient synthetic materials, and this material is handled synthetic through the banburying granulation by each component of following weight ratio, and each component is:
Paracril 8～13, styrene-butadiene rubber(SBR) 2～10, cresol modified resol 5～10, steel fiber 15～30, magnesium oxide 10～15, calcined petroleum coke 5～10, silicon carbide 2～5, mineral fibre 10～25, hydrolith 5～10, barium sulfate 10～20, graphite 5～10, molybdenumdisulphide 1～5, carbon black 1～5, sulphur 1～3, promotor 1～3.
Described mineral fibre is the rock bridgeite fibres.
Described promotor is thiuram TMTD.
Embodiment of the present invention also provides a kind of preparation method of high friction coefficient synthetic materials, comprising:
Getting each component by weight is raw material: paracril 8～13, styrene-butadiene rubber(SBR) 2～10, cresol modified resol 5～10, steel fiber 15～30, magnesium oxide 10～15, calcined petroleum coke 5～10, silicon carbide 2～5, mineral fibre 10～25, hydrolith 5～10, barium sulfate 10～20, graphite 5～10, molybdenumdisulphide 1～5, carbon black 1～5, sulphur 1～3, promotor 1～3;
Banburying granulation: above-mentioned each component is regulated through banburying heating, cleaning, banburying in the engagement type Banbury mixer, discharge after break process promptly obtains high friction coefficient synthetic materials.
Described banburying granulation step specifically comprises:
Above-mentioned each component is dropped in the engagement type Banbury mixer, by engagement property Banbury mixer banburying heating 3～5 minutes, cleaning, the banburying of each component are regulated 3～5 minutes, temperature is controlled at 80～120 ℃, pressure-controlling at 5～7Mpa in the treating processes, discharge compound, after break process, obtain high friction coefficient synthetic materials.
Described break process specifically comprises: carry out three grades of fragmentations, wherein, after the one-level coarse crushing, the granularity that makes described compound less than 200 * 200mm, secondary coarse crushing after, the granularity that makes compound is less than 100 * 20mm, three grades in small, broken bits after, the particle diameter that makes compound is less than 5mm.
Mineral fibre in the described method in raw materials used is the rock bridgeite fibres.
Promotor in the described method in raw materials used is thiurams TMTD.
The technical scheme that is provided by the invention described above embodiment as can be seen, in the embodiment of the present invention with paracril; styrene-butadiene rubber(SBR); cresol modified resol; steel fiber; magnesium oxide; calcined petroleum coke; silicon carbide; mineral fibre; hydrolith; barium sulfate; graphite; molybdenumdisulphide; carbon black; sulphur and promotor have been synthesized polymer composite according to a certain weight ratio; this polymer composite belongs to the polymer trielement composite material; in the material prescription with paracril; styrene-butadiene rubber(SBR); the cresol modified resol is a bonding system; with the inorganic fibre mineral fibre; steel fiber is an enhancement component; with filler silicon carbide; graphite; molybdenumdisulphide is frictional property regulator or Synergist S-421 95; especially the cooperating of bonding system and inorganic fibre in the prescription, can play the intensity and the flexible effect of the obtained synthetic materials of raising.Utilize this prescription to make synthetic materials and have high friction coefficient by the banburying granulation, this synthetic materials can be used for preparing stable friction performance, and wear resistance is better, friction piece with good self-cleaning, this friction piece can be made the friction means that is applied in multiple occasion, as the high friction composite brake shoe of rail vehicle, the brake component of subway train etc., when this synthetic materials is made brake component, have stable frictional behaviour and wear resistance preferably; Can suppress damascene, crackle effectively, fall phenomenons such as piece, can reduce damage wheel; Have impact resistance preferably, good weatherability can be used for the big environment of temperature variation for a long time, is applicable to that the region is wide, the applied environment characteristics that regional disparity is big.
Description of drawings
Fig. 1 is preparation method's schema of the high friction coefficient synthetic materials of the embodiment of the invention.
Embodiment
Embodiment of the present invention provides a kind of high friction coefficient synthetic materials and preparation method thereof, this synthetic materials can be used for various application occasions such as braking energy is big, frictional coefficient height, the material that this material obtains after banburying is handled for each component by following weight ratio, each component is:
Paracril 8～13, styrene-butadiene rubber(SBR) 2～10, cresol modified resol 5～10, steel fiber 15～30, magnesium oxide 10～15, calcined petroleum coke 5～10, silicon carbide 2～5, mineral fibre 10～25, hydrolith 5～10, barium sulfate 10～20, graphite 5～10, molybdenumdisulphide 1～5, carbon black 1～5, sulphur 1～3, promotor 1～3.
Banburying granulation: above-mentioned each component is regulated through banburying heating, cleaning, banburying in the engagement type Banbury mixer, discharge after break process promptly obtains high friction coefficient synthetic materials.
This high friction coefficient synthetic materials belongs to the polymer trielement composite material, be bonding system with paracril, styrene-butadiene rubber(SBR), cresol modified resol in the material prescription, with inorganic fibre mineral fibre, steel fiber is enhancement component, with filler silicon carbide, graphite, molybdenumdisulphide etc. is frictional property regulator or Synergist S-421 95, especially the cooperating of bonding system and inorganic fibre in the prescription, can play the intensity and the flexible effect of the obtained synthetic materials of raising.Utilize this prescription to have high friction coefficient by the synthetic materials that the banburying granulation makes, this synthetic materials can be used for preparing stable friction performance, and wear resistance is better, has the friction piece of good self-cleaning.
For ease of the understanding to the embodiment of the invention, the invention will be further described below in conjunction with accompanying drawing.
Embodiment one
Present embodiment provides a kind of high friction coefficient synthetic materials, can be used for preparing the parts of the contour friction of brake block of railway freight-car, this material is to handle the polymer composite that back chemical combination forms by following each component by weight in Banbury mixer, and each component is specially:
Paracril 8～13, styrene-butadiene rubber(SBR) 2～10, cresol modified resol 5～10, steel fiber 15～30, magnesium oxide 10～15, calcined petroleum coke 5～10, silicon carbide 2～5, mineral fibre 10～25, hydrolith 5～10, barium sulfate 10～20, graphite 5～10, molybdenumdisulphide 1～5, carbon black 1～5, sulphur 1～3, promotor 1～3.
Wherein, mineral fibre can adopt the rock bridgeite fibres; Promotor can be adopted rubber accelerator, as: thiurams TMTD.
The preparation process of above-mentioned high friction coefficient synthetic materials, as shown in Figure 1, specifically can be undertaken by following step:
Get each component as starting material: specifically can get each component by the prescription of above-mentioned synthetic materials;
The banburying granulation: each component of working good of will weighing is put in the existing GK-E type engagement property Banbury mixer, open the banburying program, carry out following processing in Banbury mixer: banburying heating, cleaning, banburying are regulated, wherein, banburying heating 3～5 minutes, banburying is regulated 3～5 minutes, in the banburying process, temperature is controlled at 80～120 ℃, pressure-controlling at 5～7Mpa; Banburying obtains the banburying sizing material after regulating, after discharging the banburying sizing material banburying sizing material is carried out break process, specifically can be divided into three grades of fragmentations, wherein, after the one-level coarse crushing, the granularity that makes described compound less than 200 * 200mm, secondary coarse crushing after, the granularity that makes compound is less than 100 * 20mm, three grades in small, broken bits after, the particle diameter that makes compound is less than 5mm, the mode of three grades of fragmentations can guarantee that material is even, makes the bulk sizing material become the fine particle sizing material after three grades of fragmentations and promptly obtains high friction coefficient synthetic materials; In the reality, the banburying treating processes of engagement type Banbury mixer can be debugged, be set in advance by computer controlled automatic, obtains high friction coefficient synthetic materials in the mode of automatic processing.
In the embodiment of the invention, in the material prescription as paracril, styrene-butadiene rubber(SBR), the cresol modified resol of bonding system, with mineral fibre, steel fiber as enhancement component, and as cooperations such as the silicon carbide of frictional property regulator or Synergist S-421 95, graphite, molybdenumdisulphide fillers, with each component after Banbury mixer handle to mix, obtain a kind of stable friction performance, and the high preferably friction materials of wear resistance, especially the cooperating of bonding system and inorganic fibre in the prescription, can play raising and make the strength of materials and flexible effect.This material has very high compression, stretching, shock strength, has overcome fracture in application, has fallen piece, has guaranteed stable frictional behaviour, when being used to make brake component, effectively improve work-ing life, and this prescription cooperates the banburying granulation process, guaranteed that the synthesis material quality that makes is stable.
In sum, after handling chemical combination, banburying obtains a kind of high friction coefficient synthetic materials by employing paracril, styrene-butadiene rubber(SBR), cresol modified resol, steel fiber, magnesium oxide, calcined petroleum coke, silicon carbide, mineral fibre, hydrolith, barium sulfate, graphite, molybdenumdisulphide, carbon black, sulphur and promotor in the embodiment of the invention, during this material preparation friction means, can satisfy the utilization requirement of multiple occasion; Have stable frictional behaviour and wear resistance preferably; Can suppress damascene, crackle effectively, fall phenomenons such as piece; Have impact resistance preferably, good weatherability can be used for the big environment of temperature variation for a long time, and it is wide to be fit to very much the region, the area that regional disparity is big.
The above; only for the preferable embodiment of the present invention, but protection scope of the present invention is not limited thereto, and anyly is familiar with those skilled in the art in the technical scope that the present invention discloses; the variation that can expect easily or replacement all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain of claim.
Claims (8)
1, a kind of high friction coefficient synthetic materials is characterized in that, this material is handled synthetic through the banburying granulation by each component of following weight ratio, and each component is:
Paracril 8～13, styrene-butadiene rubber(SBR) 2～10, cresol modified resol 5～10, steel fiber 15～30, magnesium oxide 10～15, calcined petroleum coke 5～10, silicon carbide 2～5, mineral fibre 10～25, hydrolith 5～10, barium sulfate 10～20, graphite 5～10, molybdenumdisulphide 1～5, carbon black 1～5, sulphur 1～3, promotor 1～3.
2, material according to claim 1 is characterized in that, described mineral fibre is the rock bridgeite fibres.
3, material according to claim 1 is characterized in that, described promotor is thiuram TMTD.
4, a kind of preparation method of high friction coefficient synthetic materials is characterized in that, comprising:
Getting each component by weight is raw material: paracril 8～13, styrene-butadiene rubber(SBR) 2～10, cresol modified resol 5～10, steel fiber 15～30, magnesium oxide 10～15, calcined petroleum coke 5～10, silicon carbide 2～5, mineral fibre 10～25, hydrolith 5～10, barium sulfate 10～20, graphite 5～10, molybdenumdisulphide 1～5, carbon black 1～5, sulphur 1～3, promotor 1～3;
Banburying granulation: above-mentioned each component is regulated through banburying heating, cleaning, banburying in the engagement type Banbury mixer, discharge after break process promptly obtains high friction coefficient synthetic materials.
5, method according to claim 4 is characterized in that, described banburying granulation step specifically comprises:
Above-mentioned each component is dropped in the engagement type Banbury mixer, by engagement property Banbury mixer banburying heating 3～5 minutes, cleaning, the banburying of each component are regulated 3～5 minutes, temperature is controlled at 80～120 ℃, pressure-controlling at 5～7Mpa in the treating processes, discharge compound, after break process, obtain high friction coefficient synthetic materials.
6, method according to claim 5, it is characterized in that, described break process specifically comprises: carry out three grades of fragmentations, wherein, after the one-level coarse crushing, the granularity that makes described compound less than 200 * 200mm, secondary coarse crushing after, the granularity that makes compound is less than 100 * 20mm, three grades in small, broken bits after, the particle diameter that makes compound is less than 5mm.
According to each described method in the claim 4～6, it is characterized in that 7, the mineral fibre in the described method in raw materials used is the rock bridgeite fibres.
According to each described method in the claim 4～6, it is characterized in that 8, the promotor in the described method in raw materials used is thiurams TMTD.
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| CN101837665A (en) * | 2010-05-27 | 2010-09-22 | 上海加富橡胶制品有限公司 | Rubber combination and diaphragm containing same |
| CN101907141A (en) * | 2010-07-07 | 2010-12-08 | 北京瑞斯福科技有限公司 | Method for manufacturing composition brake shoe with powder metallurgy inserts |
| CN102020977A (en) * | 2010-11-01 | 2011-04-20 | 陈俊 | Friction particles and preparation method thereof |
| CN102617871A (en) * | 2012-04-01 | 2012-08-01 | 北京瑞斯福科技有限公司 | Method for preparing macromolecular composite friction material |
| CN103194039A (en) * | 2013-04-17 | 2013-07-10 | 北京瑞斯福科技有限公司 | Synthetic material with low friction coefficient and preparation method thereof |
| CN103486172A (en) * | 2013-10-15 | 2014-01-01 | 句容市睿远科技有限公司 | Friction piece material for high-speed rail train brake shoes and preparation method thereof |
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| CN101837665B (en) * | 2010-05-27 | 2013-04-24 | 上海加富橡胶制品有限公司 | Rubber combination and diaphragm containing same |
| CN101837665A (en) * | 2010-05-27 | 2010-09-22 | 上海加富橡胶制品有限公司 | Rubber combination and diaphragm containing same |
| CN101907141A (en) * | 2010-07-07 | 2010-12-08 | 北京瑞斯福科技有限公司 | Method for manufacturing composition brake shoe with powder metallurgy inserts |
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| CN102020977A (en) * | 2010-11-01 | 2011-04-20 | 陈俊 | Friction particles and preparation method thereof |
| CN102020977B (en) * | 2010-11-01 | 2012-12-19 | 陈俊 | Friction particles and preparation method thereof |
| CN102617871A (en) * | 2012-04-01 | 2012-08-01 | 北京瑞斯福科技有限公司 | Method for preparing macromolecular composite friction material |
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| CN103486172A (en) * | 2013-10-15 | 2014-01-01 | 句容市睿远科技有限公司 | Friction piece material for high-speed rail train brake shoes and preparation method thereof |
| CN103819765B (en) * | 2014-02-14 | 2016-05-11 | 北京瑞斯福高新科技股份有限公司 | The preparation method of friction material and lorry brake shoe for the heavy rail freight brake shoe of macro-axis |
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| CN112961456A (en) * | 2021-04-13 | 2021-06-15 | 北京纵横机电科技有限公司 | Friction regulator composition and preparation method and application thereof |
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Application publication date: 20090311 |