CN103059504A - Reinforced wear-resistant automobile brake composite material and preparation method thereof - Google Patents
Reinforced wear-resistant automobile brake composite material and preparation method thereof Download PDFInfo
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Abstract
The invention discloses a reinforce wear-resistant automobile brake composite material which is prepared from the following components in parts by weight: 85-100 parts of resin matrix, 100-150 parts of composite reinforcing fiber, 80-120 parts of filler, 25-40 parts of toughening material, 6-10 parts of curing agent, 4-6 parts of curing accelerator, 30-85 parts of frictional property regulator, 30-40 parts of noise reducer and 4.5-6 parts of releasing agent. The resin matrix is reinforced by the composite reinforcing fiber and matched with proper frictional property regulator, filler, toughening material and noise reducer to display the synergic coupling actions among the resin matrix, reinforcing fiber, filler and frictional property regulator, thereby obtaining the novel automobile brake composite material which has the advantages of stable friction factor, small wear rate, high heat fade resistance, favorable braking effect, shock absorption, noise reduction, high mechanical strength, low cost, long service life and favorable braking property at different temperatures.
Description
Technical field
The friction materials that the present invention relates to use in the automotive brake belongs to technical field of polymer composite materials, relates in particular to a kind of enhancing wear resistant automobile braking composite material and preparation method thereof.
Background technology
Along with the development of automotive industry, the auto output steady-state growth of China, the automobile consumption scale is increasingly huge, and the performance of automotive material is also had higher requirement, and material technology is important content and the basic substance of automotive industry innovation.The exploitation of novel material with use the production technology progress not only promoted automobile, will promote simultaneously development and the progress of material industry itself, the development of national economy is had considerable meaning.The development trend of automotive brake friction material is also inevitable towards having the more future development of the high-performance enhancing wearing composite material of high technology content.
Automotive brake friction material requires high and stable damping force on the one hand, namely require in the situation that widely in the temperature range and speed, pressure keep stablizing with the environment change frictional coefficient; Good wear resistance to be arranged on the other hand to guarantee permanent work-ing life and insensitivity; Good thermal conductivity, damping noise reduction, environmentally safe and certain high-temperature machinery intensity also should be arranged.
Traditional asbestos braking material because friction process asbestos decomposes produces decline and asbestos toxic by the strict limit production of many countries and use.Thereafter the semimetal braking sheet that occurs because of metal easy-to-rust, high heating and the shortcomings such as cost is high, frictional noise, and fails to replace fully asbestos formula brake material.In recent years, metal whisker reinforced composite has become trend in the matrix material research field, and the excellent properties that metal whisker reinforced composite shows has also promoted development and the exploitation of various whiskers widely, has now developed the different whisker of kind more than 100.Whisker has metal whisker, inorganic crystal whisker and polymkeric substance whisker.But most of high-quality whisker is expensive, has greatly limited their application.The patent of publication number CN 101514252A discloses a kind of whisker and has strengthened braking composite material, and the resulting materials frictional coefficient is moderate, wear rate is little, the heat-resistant decline, but exist noise that vibrations are arranged greatly, and the high shortcoming of cost.
Summary of the invention
The present invention be exactly provide in order to solve the problem that above-mentioned prior art exists that a kind of stable friction factor, little, the anti-character of heat-fading of wear rate are high, good braking effect, damping noise reduction, mechanical strength novel enhanced wear resistant automobile braking composite material large, with low cost.
Another object of the present invention provides the preparation method of above-mentioned enhancing wear resistant automobile braking composite material.
Purpose of the present invention is achieved through the following technical solutions:
A kind of enhancing wear resistant automobile braking composite material, made by the component that comprises following weight part:
Resin matrix 85-100 part,
Composite reinforcing fiber 100-150 part,
Filler 80-120 part,
Toughening material 25-40 part,
Solidifying agent 6-10 part,
Curing catalyst 4-6 part,
Frictional property regulator 30-85 part,
Noise abatement agent 30-40 part,
Releasing agent 4.5-6 part.
Preferably, described resin matrix is Effect of Organosilicon-modified Phenol-formaldehyde Resin, and the effect of bonding matrix is arranged in hot-forming.
Preferably, described composite reinforcing fiber is selected from two or more the mixture in steel fiber, glass fibre, aramid fiber, the carbon fiber.
Preferably, described filler is selected from one or more in barite, agalmatolite, talcum, graphite, mica, the petroleum coke.
Preferably, described toughening material is selected from one or more in paracril, polyvinyl acetal, carboxybutyl rubber, the terpolymer EP rubber.
Preferably, described solidifying agent is selected from one or more in isophthalic triamine, hexamethylenetetramine, benzene sulfonyl chloride, sulfovinic acid, the mahogany acid; Described curing catalyst is selected from magnesium oxide or calcium hydroxide.
Preferably, described frictional property regulator is selected from one or more in rubber powder, tyre talc, iron powder, copper powder, the aluminium powder.
Preferably, described noise abatement agent is selected from the particulate matter of synthesizing hydrogenated Calucium Silicate powder and graphite formation, or is selected from the particulate matter of synthesizing hydrogenated Calucium Silicate powder and coke formation, and the average particulate diameter of described particulate matter is 1-1.5mm.
Preferably, described releasing agent is selected from one or more in stearic acid, Zinic stearas, Magnesium Stearate, the oleic acid.
A kind of preparation method who strengthens the wear resistant automobile braking composite material may further comprise the steps:
(1) takes by weighing raw material by following proportioning: resin matrix 85-100 weight part, composite reinforcing fiber 100-150 weight part, filler 80-120 weight part, toughening material 25-40 weight part, solidifying agent 6-10 weight part, curing catalyst 4-6 weight part, frictional property regulator 30-85 weight part, noise abatement agent 30-40 weight part, releasing agent 4.5-6 weight part;
First resin matrix is added in the kneader, be heated to 60-70 ℃, add gradually composite reinforcing fiber, filler, toughening material, solidifying agent, curing catalyst, frictional property regulator, noise abatement agent and releasing agent, and constantly stir, keep mixing temperature at 50-60 ℃, churning time 30-60 min, rotating speed are 250-350 r/min;
(2) then the material after the above-mentioned kneading is sent into heating kneading on two roller roller presses, further made the material mixing, the preliminary roller of roll extrusion and rear roller rotating ratio are 1:(1.2-1.6), front roll temperature is controlled at 80-90 ℃, and rear roll temperature is controlled at 30-40 ℃;
(3) mixture after the roll extrusion is put into mould hot-forming, hot pressing temperature is controlled at 155-170 ℃, and hot pressing pressure is controlled at 30-40 MPa, and the hot pressing soaking time is 5-8 min, in the 20-60 second that hot pressing begins, opens die cavity venting two to three times;
(4) more hot-forming goods are placed on that be warmed up to 145-165 ℃ half an hour in the baking oven, are incubated 4-6 hour, be down to subsequently room temperature and obtain finished product.
Compared with prior art, the present invention has following beneficial effect:
1, composite reinforcing fiber possesses asbestos in the prior art, all enhancements of whisker among the present invention, improved the supporting capacity of carrier, effectively improve specific tenacity and the specific rigidity of matrix material, and the composite reinforcing fiber wear resistance among the present invention is good, the high temperatures non-environmental-pollution, cost hangs down wide material sources.
2, the present invention utilizes composite reinforcing fiber to strengthen phenolic resin as matrix resin, be equipped with again suitable frictional property regulator, filler, toughening material, noise abatement agent, collaborative coupling between performance resin matrix, fortifying fibre, filler, the friction modifier, thereby obtain under differing temps that stable friction factor, little, the anti-character of heat-fading of wear rate are high, good braking effect, damping noise reduction, mechanical strength new automobile braking composite material large, with low cost, long service life, braking ability are good, preparation method's simple possible.
Embodiment
Describe the present invention in detail below in conjunction with each specific embodiment and Comparative Examples.
A kind of component and weight part that strengthens the wear resistant automobile braking composite material is: resin matrix 85-100 part, composite reinforcing fiber 100-150 part, filler 80-120 part, toughening material 25-40 part, solidifying agent 6-10 part, curing catalyst 4-6 part, frictional property regulator 30-85 part, noise abatement agent 30-40 part, releasing agent 4.5-6 part.
Embodiment 1
Take by weighing each raw material by the formulation weight umber, first with in 90 parts of adding kneaders of Effect of Organosilicon-modified Phenol-formaldehyde Resin, be heated to 60-70 ℃, add gradually composite reinforcing fiber (55 parts of 55 parts of steel fibers and aramid fibers), filler (37 parts in 55 parts in barite and graphite), 28 parts of paracrils, 7.5 parts of hexamethylenetetramines, 4.8 parts in magnesium oxide, frictional property regulator (15 parts of 30 parts of rubber powders and copper powders), 4.8 parts of 32 parts of noise abatement agent (particulate matter that synthesizing hydrogenated Calucium Silicate powder and graphite form) and stearic acid, and constantly stir, keep mixing temperature at 50-60 ℃, churning time 40-50 min, rotating speed are 280-300 r/min; Then the material after the above-mentioned kneading is sent into heating kneading on two roller roller presses, purpose is further to make the material mixing, and two roller rotating ratios of roll extrusion are 1:1.5, preliminary roller 16 r/min, rear roller 24 r/min, front roll temperature is controlled at 80-90 ℃, and rear roll temperature is controlled at 30-40 ℃; Mixture after the roll extrusion is put into mould hot-forming, hot pressing temperature is controlled at 160 ℃, and hot pressing pressure is controlled at 32 MPa, and the hot pressing soaking time is 5-8 min, in the 20-60 second that hot pressing begins, must open die cavity, exits two to three times; Again hot-forming goods are placed on that be warmed up to 155 ℃ half an hour in the baking oven, are incubated 5 hours, drop to subsequently room temperature and get finished product.
Embodiment 2
Take by weighing each raw material by the formulation weight umber, first with in 86 parts of adding kneaders of Effect of Organosilicon-modified Phenol-formaldehyde Resin, be heated to 60-70 ℃, add gradually composite reinforcing fiber (50 parts on 50 parts of steel fibers and carbon fiber), filler (30 parts in 50 parts of agalmatolites and graphite), 30 parts of paracrils, 6.2 parts of benzene sulfonyl chlorides, 4.2 parts in calcium hydroxide, frictional property regulator (10 parts of 20 parts of tyre talcs and copper powders), 4.5 parts of 30 parts of noise abatement agent (particulate matter that synthesizing hydrogenated Calucium Silicate powder and coke form) and Zinic stearass, and constantly stir, keep mixing temperature at 50-60 ℃, churning time 30-40 min, rotating speed are 290-310 r/min; Then the material after the above-mentioned kneading is sent into heating kneading on two roller roller presses, purpose is further to make the material mixing, and two roller rotating ratios of roll extrusion are 1:1.4, preliminary roller 15 r/min, rear roller 21 r/min, front roll temperature is controlled at 80-90 ℃, and rear roll temperature is controlled at 30-40 ℃; Mixture after the roll extrusion is put into mould hot-forming, hot pressing temperature is controlled at 155 ℃, and hot pressing pressure is controlled at 30 MPa, and the hot pressing soaking time is 5-8 min, in the 20-60 second that hot pressing begins, must open die cavity, exits two to three times; Again hot-forming goods are placed on that be warmed up to 150 ℃ half an hour in the baking oven, are incubated .5.5 hour, drop to subsequently room temperature and get finished product.
Embodiment 3
Take by weighing each raw material by the formulation weight umber, first with in 100 parts of adding kneaders of Effect of Organosilicon-modified Phenol-formaldehyde Resin, be heated to 60-70 ℃, add gradually composite reinforcing fiber (62 parts of 62 parts of steel fibers and aramid fibers), filler (42 parts in 63 parts in talcum and graphite), 25 parts of polyvinyl acetals, 8.5 parts of hexamethylenetetramines, 5.2 parts in magnesium oxide, frictional property regulator (25 parts of 50 parts of rubber powders and iron powders), 5.4 parts of 35 parts of noise abatement agent (particulate matter that synthesizing hydrogenated Calucium Silicate powder and graphite form) and Magnesium Stearates, and constantly stir, keep mixing temperature at 50-60 ℃, churning time 40-50 min, rotating speed are 250-270 r/min; Then the material after the above-mentioned kneading is sent into heating kneading on two roller roller presses, purpose is further to make the material mixing, and two roller rotating ratios of roll extrusion are 1:1.2, preliminary roller 20 r/min, rear roller 24 r/min, front roll temperature is controlled at 80-90 ℃, and rear roll temperature is controlled at 30-40 ℃; Mixture after the roll extrusion is put into mould hot-forming, hot pressing temperature is controlled at 170 ℃, and hot pressing pressure is controlled at 40 MPa, and the hot pressing soaking time is 5-8 min, in the 20-60 second that hot pressing begins, must open die cavity, exits two to three times; Again hot-forming goods are placed on that be warmed up to 165 ℃ half an hour in the baking oven, are incubated 4 hours, drop to subsequently room temperature and get finished product.
Embodiment 4
Take by weighing each raw material by the formulation weight umber, first with in 92 parts of adding kneaders of Effect of Organosilicon-modified Phenol-formaldehyde Resin, be heated to 60-70 ℃, add gradually composite reinforcing fiber (75 parts in 75 parts of steel fibers and glass fibre), filler (47 parts in 65 parts of agalmatolites and graphite), 36 parts of carboxybutyl rubber, 9.8 parts of sulfovinic acids, 6.0 parts in magnesium oxide, frictional property regulator (22 parts of 44 parts of rubber powders and aluminium powders), 6.0 parts of 40 parts of noise abatement agent (particulate matter that synthesizing hydrogenated Calucium Silicate powder and coke form) and stearic acid, and constantly stir, keep mixing temperature at 50-60 ℃, churning time 50-60 min, rotating speed are 310-330 r/min; Then the material after the above-mentioned kneading is sent into heating kneading on two roller roller presses, purpose is further to make the material mixing, and two roller rotating ratios of roll extrusion are 1:1.6, preliminary roller 15 r/min, rear roller 24 r/min, front roll temperature is controlled at 80-90 ℃, and rear roll temperature is controlled at 30-40 ℃; Mixture after the roll extrusion is put into mould hot-forming, hot pressing temperature is controlled at 165 ℃, and hot pressing pressure is controlled at 38 MPa, and the hot pressing soaking time is 5-8 min, in the 20-60 second that hot pressing begins, must open die cavity, exits two to three times; Again hot-forming goods are placed on that be warmed up to 145 ℃ half an hour in the baking oven, are incubated 6 hours, drop to subsequently room temperature and get finished product.
Embodiment 5
Take by weighing each raw material by the formulation weight umber, first with in 85 parts of adding kneaders of Effect of Organosilicon-modified Phenol-formaldehyde Resin, be heated to 60-70 ℃, add gradually composite reinforcing fiber (68 parts on 68 parts of steel fibers and carbon fiber), filler (45 parts in 75 parts in barite and graphite), 40 parts of paracrils, 7.6 parts of hexamethylenetetramines, 5.6 parts in calcium hydroxide, frictional property regulator (28 parts of 56 parts of tyre talcs and iron powders), 5.5 parts of 37 parts of noise abatement agent (particulate matter that synthesizing hydrogenated Calucium Silicate powder and graphite form) and Zinic stearass, and constantly stir, keep mixing temperature at 50-60 ℃, churning time 40-50 min, rotating speed are 330-350 r/min; Then the material after the above-mentioned kneading is sent into heating kneading on two roller roller presses, purpose is further to make the material mixing, and two roller rotating ratios of roll extrusion are 1:1.5, preliminary roller 16 r/min, rear roller 24 r/min, front roll temperature is controlled at 80-90 ℃, and rear roll temperature is controlled at 30-40 ℃; Mixture after the roll extrusion is put into mould hot-forming, hot pressing temperature is controlled at 165 ℃, and hot pressing pressure is controlled at 35MPa, and the hot pressing soaking time is 5-8 min, in the 20-60 second that hot pressing begins, must open die cavity, exits two to three times; Again hot-forming goods are placed on that be warmed up to 160 ℃ half an hour in the baking oven, are incubated 4.5 hours, drop to subsequently room temperature and get finished product.
Comparative Examples 1
Do not add filler, all the other are with embodiment 5.First with in 85 parts of adding kneaders of Effect of Organosilicon-modified Phenol-formaldehyde Resin, be heated to 60-70 ℃, add gradually 5.5 parts of composite reinforcing fiber (steel fiber 68 parts and carbon fiber 68 parts), 40 parts of paracrils, 7.6 parts of hexamethylenetetramines, 5.6 parts in calcium hydroxide, frictional property regulator (28 parts of 56 parts of tyre talcs and iron powders), 37 parts of noise abatement agent (particulate matter that synthesizing hydrogenated Calucium Silicate powder and graphite form) and Zinic stearass, and constantly stir, keep mixing temperature at 50-60 ℃, churning time 40-50 min, rotating speed are 330-350 r/min; Then the material after the above-mentioned kneading is sent into heating kneading on two roller roller presses, purpose is further to make the material mixing, and two roller rotating ratios of roll extrusion are 1:1.5, preliminary roller 16 r/min, rear roller 24 r/min, front roll temperature is controlled at 80-90 ℃, and rear roll temperature is controlled at 30-40 ℃; Mixture after the roll extrusion is put into mould hot-forming, hot pressing temperature is controlled at 165 ℃, and hot pressing pressure is controlled at 35MPa, and the hot pressing soaking time is 5-8 min, in the 20-60 second that hot pressing begins, must open die cavity, exits two to three times; Again hot-forming goods are placed on that be warmed up to 160 ℃ half an hour in the baking oven, are incubated 4.5 hours, drop to subsequently room temperature and get finished product.
Comparative Examples 2
Do not add composite reinforcing fiber, all the other are with embodiment 4.First with in 92 parts of adding kneaders of Effect of Organosilicon-modified Phenol-formaldehyde Resin, be heated to 60-70 ℃, add gradually 6.0 parts of filler (agalmatolite 65 parts and graphite 47 parts), 36 parts of carboxybutyl rubber, 9.8 parts of sulfovinic acids, 6.0 parts in magnesium oxide, frictional property regulator (22 parts of 44 parts of rubber powders and aluminium powders), 40 parts of noise abatement agent (particulate matter that synthesizing hydrogenated Calucium Silicate powder and coke form) and stearic acid, and constantly stir, keep mixing temperature at 50-60 ℃, churning time 50-60 min, rotating speed are 310-330 r/min; Then the material after the above-mentioned kneading is sent into heating kneading on two roller roller presses, purpose is further to make the material mixing, and two roller rotating ratios of roll extrusion are 1:1.6, preliminary roller 15 r/min, rear roller 24 r/min, front roll temperature is controlled at 80-90 ℃, and rear roll temperature is controlled at 30-40 ℃; Mixture after the roll extrusion is put into mould hot-forming, hot pressing temperature is controlled at 165 ℃, and hot pressing pressure is controlled at 38 MPa, and the hot pressing soaking time is 5-8 min, in the 20-60 second that hot pressing begins, must open die cavity, exits two to three times; Again hot-forming goods are placed on that be warmed up to 145 ℃ half an hour in the baking oven, are incubated 6 hours, drop to subsequently room temperature and get finished product.
Comparative Examples 3
Do not add frictional property regulator, all the other are with embodiment 5.First with in 85 parts of adding kneaders of Effect of Organosilicon-modified Phenol-formaldehyde Resin, be heated to 60-70 ℃, add gradually 5.5 parts of composite reinforcing fiber (steel fiber 68 parts and carbon fiber 68 parts), filler (45 parts in 75 parts in barite and graphite), 40 parts of paracrils, 7.6 parts of hexamethylenetetramines, 5.6 parts in calcium hydroxide, 37 parts of noise abatement agent (particulate matter that synthesizing hydrogenated Calucium Silicate powder and graphite form) and Zinic stearass, and constantly stir, keep mixing temperature at 50-60 ℃, churning time 40-50 min, rotating speed are 330-350 r/min; Then the material after the above-mentioned kneading is sent into heating kneading on two roller roller presses, purpose is further to make the material mixing, and two roller rotating ratios of roll extrusion are 1:1.5, preliminary roller 16 r/min, rear roller 24 r/min, front roll temperature is controlled at 80-90 ℃, and rear roll temperature is controlled at 30-40 ℃; Mixture after the roll extrusion is put into mould hot-forming, hot pressing temperature is controlled at 165 ℃, and hot pressing pressure is controlled at 35MPa, and the hot pressing soaking time is 5-8 min, in the 20-60 second that hot pressing begins, must open die cavity, exits two to three times; Again hot-forming goods are placed on that be warmed up to 160 ℃ half an hour in the baking oven, are incubated 4.5 hours, drop to subsequently room temperature and get finished product.
The matrix material of embodiment 1-5 and Comparative Examples 1-3 is prepared into test bars carries out frictional behaviour test and Mechanics Performance Testing, measure respectively 100 ℃, 150 ℃, 200 ℃, 250 ℃, 300 ℃, the frictional coefficient in the time of 350 ℃ and wear rate, and shock strength and the compressive strength of sample under the room temperature, test result sees Table 1-3.
The contrast of table 1 experiment frictional coefficient
The contrast of table 2 experiment wear rate
The test of table 3 mechanical strength
By every data in the table 1 as can be known, the a little higher than low temperature frictional coefficient of high temperature friction coefficient, in 100 ℃ of-350 ℃ of temperature ranges, the frictional coefficient of embodiment 5 is stable (fluctuating up and down 0.05), and the frictional coefficient of not filled Comparative Examples 1 is very unstable, upper lower variation of tolerance very large (fluctuation 0.12), namely the less stability of the fluctuation of alternating temperature process frictional coefficient is better; By every data in the table 2 as can be known, have the sample that adds frictional property regulator not have obvious heat fading phenomenon, the wear rate of embodiment 5 is minimum, and it is very large not add the wear rate of Comparative Examples 3 of frictional property regulator; By every data in the table 3 as can be known, embodiment 4,5 mechanical strength are high, and do not add shock strength and the compressive strength decrease of the Comparative Examples 2 of composite reinforcing fiber, do not reach the performance requriements of brake friction material.
Embodiment 6
A kind of preparation method who strengthens the wear resistant automobile braking composite material may further comprise the steps:
(1) takes by weighing raw material by following proportioning: Effect of Organosilicon-modified Phenol-formaldehyde Resin 88 weight parts, steel fiber 60 weight parts, glass fibre 65 weight parts, filler barite 40 weight parts, agalmatolite 55 weight parts, toughening material paracril 12 weight parts, polyvinyl acetal 20 weight parts, solidifying agent mahogany acid 10 weight parts, curing catalyst magnesium oxide 4 weight parts, frictional property regulator aluminium powder 50 weight parts, particulate matter (average particulate diameter is 1mm) 38 weight parts that the synthesizing hydrogenated Calucium Silicate powder of noise abatement agent and graphite form, releasing agent oleic acid 5.2 weight parts;
First resin matrix is added in the kneader, be heated to 60 ℃, add gradually composite reinforcing fiber, filler, toughening material, solidifying agent, curing catalyst, frictional property regulator, noise abatement agent and releasing agent, and constantly stir, keep mixing temperature at 50 ℃, churning time 60 min, rotating speed are 250 r/min;
(2) then the material after the above-mentioned kneading is sent into heating kneading on two roller roller presses, further made the material mixing, the preliminary roller of roll extrusion and rear roller rotating ratio are 1:1.2, the preliminary roller rotating speed is 15 r/min, rear roller rotating speed is 18 r/min, and front roll temperature is controlled at 80 ℃, and rear roll temperature is controlled at 30 ℃;
(3) mixture after the roll extrusion is put into mould hot-forming, hot pressing temperature is controlled at 155 ℃, and hot pressing pressure is controlled at 30 MPa, and the hot pressing soaking time is 8 min, in the 20-60 second that hot pressing begins, opens die cavity venting two to three times;
(4) more hot-forming goods are placed on that be warmed up to 145 ℃ half an hour in the baking oven, are incubated 6 hours, be down to subsequently room temperature and obtain finished product.
Embodiment 7
A kind of preparation method who strengthens the wear resistant automobile braking composite material may further comprise the steps:
(1) takes by weighing raw material by following proportioning: Effect of Organosilicon-modified Phenol-formaldehyde Resin 95 weight parts, glass fibre 65 weight parts, aramid fiber 70 weight parts, filler talcum 40 weight parts, graphite 60 weight parts, toughening material carboxybutyl rubber 34 weight parts, solidifying agent benzene sulfonyl chloride 8 weight parts, curing catalyst magnesium oxide 5 weight parts, frictional property regulator rubber powder 40 weight parts, copper powder 30 weight parts, particulate matter (average particulate diameter is 1.5mm) 34 weight parts that the synthesizing hydrogenated Calucium Silicate powder of noise abatement agent and graphite form, stearic acid release agent zinc 3 weight parts, Magnesium Stearate 2.8 weight parts;
First resin matrix is added in the kneader, be heated to 70 ℃, add gradually composite reinforcing fiber, filler, toughening material, solidifying agent, curing catalyst, frictional property regulator, noise abatement agent and releasing agent, and constantly stir, keep mixing temperature at 60 ℃, churning time 30 min, rotating speed are 350 r/min;
(2) then the material after the above-mentioned kneading is sent into heating kneading on two roller roller presses, further made the material mixing, the preliminary roller of roll extrusion and rear roller rotating ratio are 1:1.6, the preliminary roller rotating speed is 15r/min, rear roller rotating speed is 24r/min, and front roll temperature is controlled at 90 ℃, and rear roll temperature is controlled at 40 ℃;
(3) mixture after the roll extrusion is put into mould hot-forming, hot pressing temperature is controlled at 170 ℃, and hot pressing pressure is controlled at 40 MPa, and the hot pressing soaking time is 5 min, in the 20-60 second that hot pressing begins, opens die cavity venting two to three times;
(4) more hot-forming goods are placed on that be warmed up to 165 ℃ half an hour in the baking oven, are incubated 4 hours, be down to subsequently room temperature and obtain finished product.
Embodiment 8
A kind of preparation method who strengthens the wear resistant automobile braking composite material may further comprise the steps:
(1) takes by weighing raw material by following proportioning: Effect of Organosilicon-modified Phenol-formaldehyde Resin 98 weight parts, glass fibre 75 weight parts, carbon fiber 45 weight parts, filler mica 60 weight parts, petroleum coke 50 weight parts, toughening material terpolymer EP rubber 38 weight parts, solidifying agent isophthalic triamine 5 weight parts, hexamethylenetetramine 5 weight parts, curing catalyst calcium hydroxide 5.5 weight parts, frictional property regulator tyre talc 50 weight parts, iron powder 35 weight parts, particulate matter (average particulate diameter is 1.2mm) 36 weight parts that the synthesizing hydrogenated Calucium Silicate powder of noise abatement agent and coke form, stearic acid release agent 5 weight parts;
First resin matrix is added in the kneader, be heated to 65 ℃, add gradually composite reinforcing fiber, filler, toughening material, solidifying agent, curing catalyst, frictional property regulator, noise abatement agent and releasing agent, and constantly stir, keep mixing temperature at 55 ℃, churning time 45 min, rotating speed are 280-300 r/min;
(2) then the material after the above-mentioned kneading is sent into heating kneading on two roller roller presses, further made the material mixing, the preliminary roller of roll extrusion and rear roller rotating ratio are 1:1.3, the preliminary roller rotating speed is 20 r/min, rear roller rotating speed is 26 r/min, and front roll temperature is controlled at 85 ℃, and rear roll temperature is controlled at 38 ℃;
(3) mixture after the roll extrusion is put into mould hot-forming, hot pressing temperature is controlled at 160 ℃, and hot pressing pressure is controlled at 35 MPa, and the hot pressing soaking time is 7 min, in the 20-60 second that hot pressing begins, opens die cavity venting two to three times;
(4) more hot-forming goods are placed on that be warmed up to 158 ℃ half an hour in the baking oven, are incubated 5 hours, be down to subsequently room temperature and obtain finished product.
Above disclosed only be several specific embodiments of the application, but the application is not limited thereto, the changes that any person skilled in the art can think of all should drop in the application's the protection domain.
Claims (10)
1. one kind strengthens the wear resistant automobile braking composite material, it is characterized in that, is made by the component that comprises following weight part:
Resin matrix 85-100 part,
Composite reinforcing fiber 100-150 part,
Filler 80-120 part,
Toughening material 25-40 part,
Solidifying agent 6-10 part,
Curing catalyst 4-6 part,
Frictional property regulator 30-85 part,
Noise abatement agent 30-40 part,
Releasing agent 4.5-6 part.
2. enhancing wear resistant automobile braking composite material as claimed in claim 1 is characterized in that, described resin matrix is Effect of Organosilicon-modified Phenol-formaldehyde Resin.
3. enhancing wear resistant automobile braking composite material as claimed in claim 1 is characterized in that, described composite reinforcing fiber is selected from two or more the mixture in steel fiber, glass fibre, aramid fiber, the carbon fiber.
4. enhancing wear resistant automobile braking composite material as claimed in claim 1 is characterized in that, described filler is selected from one or more in barite, agalmatolite, talcum, graphite, mica, the petroleum coke.
5. enhancing wear resistant automobile braking composite material as claimed in claim 1 is characterized in that, described toughening material is selected from one or more in paracril, polyvinyl acetal, carboxybutyl rubber, the terpolymer EP rubber.
6. enhancing wear resistant automobile braking composite material as claimed in claim 1 is characterized in that, described solidifying agent is selected from one or more in isophthalic triamine, hexamethylenetetramine, benzene sulfonyl chloride, sulfovinic acid, the mahogany acid; Described curing catalyst is selected from magnesium oxide or calcium hydroxide.
7. enhancing wear resistant automobile braking composite material as claimed in claim 1 is characterized in that, described frictional property regulator is selected from one or more in rubber powder, tyre talc, iron powder, copper powder, the aluminium powder.
8. enhancing wear resistant automobile braking composite material as claimed in claim 1, it is characterized in that, described noise abatement agent is selected from the particulate matter of synthesizing hydrogenated Calucium Silicate powder and graphite formation, or is selected from the particulate matter of synthesizing hydrogenated Calucium Silicate powder and coke formation, and the average particulate diameter of described particulate matter is 1-1.5mm.
9. enhancing wear resistant automobile braking composite material as claimed in claim 1 is characterized in that, described releasing agent is selected from one or more in stearic acid, Zinic stearas, Magnesium Stearate, the oleic acid.
10. the preparation method of an enhancing wear resistant automobile braking composite material as claimed in claim 1 is characterized in that, may further comprise the steps:
(1) takes by weighing raw material by following proportioning: resin matrix 85-100 weight part, composite reinforcing fiber 100-150 weight part, filler 80-120 weight part, toughening material 25-40 weight part, solidifying agent 6-10 weight part, curing catalyst 4-6 weight part, frictional property regulator 30-85 weight part, noise abatement agent 30-40 weight part, releasing agent 4.5-6 weight part;
First resin matrix is added in the kneader, be heated to 60-70 ℃, add gradually composite reinforcing fiber, filler, toughening material, solidifying agent, curing catalyst, frictional property regulator, noise abatement agent and releasing agent, and constantly stir, keep mixing temperature at 50-60 ℃, churning time 30-60 min, rotating speed are 250-350 r/min;
(2) then the material after the above-mentioned kneading is sent into heating kneading on two roller roller presses, further made the material mixing, the preliminary roller of roll extrusion and rear roller rotating ratio are 1:(1.2-1.6), front roll temperature is controlled at 80-90 ℃, and rear roll temperature is controlled at 30-40 ℃;
(3) mixture after the roll extrusion is put into mould hot-forming, hot pressing temperature is controlled at 155-170 ℃, and hot pressing pressure is controlled at 30-40 MPa, and the hot pressing soaking time is 5-8 min, in the 20-60 second that hot pressing begins, opens die cavity venting two to three times;
(4) more hot-forming goods are placed on that be warmed up to 145-165 ℃ half an hour in the baking oven, are incubated 4-6 hour, be down to subsequently room temperature and obtain finished product.
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