CN108587052A - A kind of carbon composite friction material and preparation method thereof - Google Patents
A kind of carbon composite friction material and preparation method thereof Download PDFInfo
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- C08L2205/00—Polymer mixtures characterised by other features
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Abstract
The present invention relates to friction material and its preparing technical fields,Especially a kind of carbon composite friction material and preparation method thereof,The material is using silicon-containing ceramic powder modified carbonaceous substance as friction material matrix,To be carbonized, nano-grade matter is made as lubriation material,Wherein,The quality volume of lubriation material is the 13 17% of basis material quality,There is stable friction factor using friction material made from the method for the present invention,Intensity is high,Adsorptivity is excellent,It is heat-resisting,The features such as wear-resistant,Improve materials from bonding intensity,Improve the heat decomposition temperature of resin,Improve the heat conductivity of non-metallic friction materials,Reduce the heavy metal material in the stability addition formula in friction material in order to improve high temperature friction coefficient,Reduce friction material proportion,And also excellent adsorptivity reduces the discharge of friction material brake(-holder) block pernicious gas at high operating temperatures,Realize that reference is made in feature of environmental protection exploitation for friction material.
Description
Technical field
The present invention relates to friction material and its preparing technical field, especially a kind of carbon composite friction material and its preparation side
Method.
Background technology
With the continuous development of society and progressive, people are to the speed of service of vehicle, high ferro, safety, comfort level and ring
More stringent requirements are proposed for guarantorization etc., and therefore, there is an urgent need to further increase the comprehensive performance of friction material.Wherein, resin base
Friction material has the advantages that friction and wear behavior is excellent, performance designability is strong and at low cost, but resin-matrix friction material exists
In braking process, friction factor stability is poor, high temperature heat fading easily occurs, and then affects safety in utilization etc., it limits
Its application prospect.
The patent No. 2016111837095 discloses a kind of friction material based on phenolic resin and metal-rubber and friction
Product, in order to solve, braking moment under high temperature operating conditions is undesirable and security hidden trouble, the patent utilize phenolic resin, glass
Glass fiber, metal-rubber particle, mineral fibres, barium sulfate, calcium carbonate, sodium fluoride, aluminium oxide, zirconium English powder, synthetic graphite, coke
After powder, calcium hydroxide, friction ion, aramid fiber mix according to a certain ratio, through hot-press solidifying, friction goods is obtained, provides one
Kind high intensity, high abrasion, fade resistance are strong, the friction plate of stable friction factor, and reduce product hardness, but fragrant in the program
The materials such as synthetic fibre fiber are expensive, environmental protection effect unobvious.
The patent No. 2016105838565 discloses a kind of friction material and preparation method thereof, and the document is novel in order to develop
Have cheap, braking ability strong and the new-type friction material of stable friction factor, be prepared using the following raw material：Iron
Zinc alloy powder, polyether-ketone, tungsten sulfide, molybdenum sulfide, spherical graphite, carbonyl nickel powder, zirconium carbide, ramet, phenolic resin, galapectite
Nanotube, but the program is to environmental protection effect unobvious.
Invention content
The present invention in order to solve the above technical problems, the present invention provides a kind of carbon composite friction material and preparation method thereof,
So that friction material has the characteristics that stable friction factor, intensity are high, adsorptivity is excellent, heat-resisting, wear-resistant, it is viscous to improve material
Knotting strength improves the heat decomposition temperature of resin, improves the heat conductivity of non-metallic friction materials, reduces in friction material
The heavy metal material in formula is added in stability in order to improve high temperature friction coefficient, reduces friction material proportion, and also excellent
Good adsorptivity reduces the discharge of friction material brake(-holder) block pernicious gas at high operating temperatures, and the feature of environmental protection is realized for friction material
Reference is made in exploitation.
It is realized particular by following technical scheme：
Carbon composite friction material provided by the invention be using silicon-containing ceramic powder modified carbonaceous substance as friction material matrix, with
Carbonization nano-grade matter is made for lubriation material, wherein the quality volume of lubriation material is the 13- of basis material quality
17%.
The friction material matrix is according to proportion by weight：2-8 parts of cashew nut shell oil, 38-43 parts of resin, rubber 30-
35 parts, 1-5 parts of silicon-containing ceramic powder.
The resin is any in phenolic resin, polyvinyl resin, epoxy resin, acrylic resin, cyanate ester resin
Kind or two or more mixtures.
The preparation method of the friction material matrix, includes the following steps：
(1) silicon-containing ceramic powder is placed in blender, mechanical agitation 8min under the conditions of rate is 500-700r/min；
(2) adjustment stir speed (S.S.) is 300-480r/min, and cashew nut shell oil is added and stirs 15min；
(3) it by after step (2) gains and resin, rubber mix, is placed under high temperature high vacuum condition and stands 20min, temperature
Degree is 500-700 DEG C；
(4) step (3) gains are placed in blender, mechanical agitation under the conditions of rate is 520-600r/min
10min。
The carbonization nano-grade matter is made of following proportion by weight raw material：10-17 parts of silicon carbide, aluminium oxide 2-5
Part, 10-15 parts of barite, 3-7 parts of metal powder, 5-8 parts of graphite, 4-9 parts of oyster shell whiting, 3-6 parts of powder diatom ooze.
The metal powder includes at least bismuth meal.
The metal powder further include in copper powder, iron powder, aluminium powder, nickel powder, titanium valve, magnesium powder, calcium powder it is any one or two kinds of with
On.
The preparation method of the carbonization nano-grade matter, includes the following steps：
(1) metal powder is placed under the conditions of temperature is 1200-1380 DEG C and is heated, be in molten state；
(2) graphite, silicon carbide, aluminium oxide, barite, oyster shell whiting are added into step (1) gains, is then keeping temperature
Degree is passed through the mixed gas of silicon fluoride gas and nitrogen, silicon fluoride under the conditions of being 1200-1380 DEG C：Carbon dioxide：Nitrogen rubs
You are than being 1：(3-5)：(10-12), flow control is in 70-100ml/min, processing time 2-4h；
(3) powder diatom ooze is added into step (2) gains, is uniformly mixed.
The present invention also provides the preparation methods of carbon composite friction material, include the following steps：
(1) it mixes：Friction material matrix is mixed with lubriation material, handles 4- at 75-98 DEG C in a kettle
8h；
(2) extrusion molding；
(3) it activates：Molding is placed under anoxia condition the activation process 1-2h at 200-220 DEG C；
(4) hot pressing：To 110-150 DEG C after cooling, it is placed in hot pressing die in the case where 15-25Mpa, temperature are 110-150 DEG C
Keep 30-60s.
In conclusion the beneficial effects of the present invention are：
Using friction material made from the method for the present invention have stable friction factor, intensity are high, adsorptivity is excellent, it is heat-resisting,
The features such as wear-resistant, improves materials from bonding intensity, improves the heat decomposition temperature of resin, improves non-metallic friction materials
Heat conductivity reduces in order to improve the heavy metal material that the stability of high temperature friction coefficient is added in formula in friction material,
Reduce friction material proportion, and also excellent adsorptivity reduces friction material brake(-holder) block pernicious gas at high operating temperatures
Discharge realizes that reference is made in feature of environmental protection exploitation for friction material.
The basis material that the present invention uses is by the modified resin of silicon-containing ceramic powder, rubber, cashew nut shell oil mixture
System improves the heat-resisting quantity of basis material, and has good curing process.
The present invention using simultaneously siliconising and carburizing technical finesse lubriation material, can improve lubriation material microcellular structure,
Abrasion resistance properties, adsorptivity and friction coefficient, so that microporous structure is effectively raised with matrix and lubriation material
Adhesion strength, adsorptivity can improve the heat decomposition temperature for improving resin, improve the heat conductivity of non-metallic friction materials,
It can reduce in friction material to improve the heavy metal material that the stability of high temperature friction coefficient is added in formula, reduce friction
Material proportion, its adsorptivity can reduce the discharge of friction material brake(-holder) block pernicious gas at high operating temperatures.
Specific implementation mode
Specific embodiments of the present invention will be described in further detail below, but the invention is not limited in these realities
Mode is applied, it is claimed to still fall within the claims in the present invention for any improvement or replacement on the present embodiment essence spirit
Range.
Embodiment 1
Carbon composite friction material provided in this embodiment be using silicon-containing ceramic powder modified carbonaceous substance as friction material matrix,
To be carbonized, nano-grade matter is made as lubriation material, wherein the quality volume of lubriation material is basis material quality
13%；Preparation method includes the following steps：
(1) it mixes：Friction material matrix is mixed with lubriation material, handles 4h at 75 DEG C in a kettle；
(2) extrusion molding；
(3) it activates：Molding is placed under anoxia condition the activation process 1h at 200 DEG C；
(4) hot pressing：To 110 DEG C after cooling, be placed in hot pressing die 15Mpa, temperature be 110 DEG C at keep 30s；
Wherein, friction material matrix proportioning is：Cashew nut shell oil 2kg, resin 38kg, rubber 30kg, silicon-containing ceramic powder 1kg；
Resin is phenolic resin；
Wherein, carbonization nano-grade matter is made of following proportioning raw material：Silicon carbide 10kg, aluminium oxide 2kg, barite
10kg, metal powder 3kg, graphite 5kg, oyster shell whiting 4kg, powder diatom ooze 3kg；
The metal powder is the mixture of bismuth meal and copper powder.
Embodiment 2
Carbon composite friction material provided in this embodiment be using silicon-containing ceramic powder modified carbonaceous substance as friction material matrix,
To be carbonized, nano-grade matter is made as lubriation material, wherein the quality volume of lubriation material is basis material quality
17%；Preparation method includes the following steps：
(1) it mixes：Friction material matrix is mixed with lubriation material, handles 8h at 98 DEG C in a kettle；
(2) extrusion molding；
(3) it activates：Molding is placed under anoxia condition the activation process 2h at 220 DEG C；
(4) hot pressing：To 150 DEG C after cooling, be placed in hot pressing die 25Mpa, temperature be 150 DEG C at keep 60s；
Wherein, friction material matrix proportioning is：Cashew nut shell oil 8kg, resin 43kg, rubber 35kg, silicon-containing ceramic powder 5kg；
Resin is the mixture of phenolic resin and acrylic resin, cyanate ester resin；
Wherein, carbonization nano-grade matter is made of following proportioning raw material：Silicon carbide 17kg, aluminium oxide 5kg, barite
15kg, metal powder 7kg, graphite 8kg, oyster shell whiting 9kg, powder diatom ooze 6kg；
The metal powder is the mixture of bismuth meal, nickel powder, titanium valve, magnesium powder, calcium powder.
Embodiment 3
Carbon composite friction material provided in this embodiment be using silicon-containing ceramic powder modified carbonaceous substance as friction material matrix,
To be carbonized, nano-grade matter is made as lubriation material, wherein the quality volume of lubriation material is basis material quality
15%；Preparation method includes the following steps：
(1) it mixes：Friction material matrix is mixed with lubriation material, handles 4-8h at 85 DEG C in a kettle；
(2) extrusion molding；
(3) it activates：Molding is placed under anoxia condition the activation process 1.5h at 210 DEG C；
(4) hot pressing：To 130 DEG C after cooling, be placed in hot pressing die 20Mpa, temperature be 130 DEG C at keep 45s；
Wherein, friction material matrix proportioning is：Cashew nut shell oil 5kg, resin 40kg, rubber 33kg, silicon-containing ceramic powder 3kg；
Resin is epoxy resin；
Wherein, carbonization nano-grade matter is made of following proportioning raw material：Silicon carbide 14kg, aluminium oxide 3kg, barite
12kg, metal powder 5kg, graphite 7kg, oyster shell whiting 6kg, powder diatom ooze 4.5kg；
The metal powder is the mixture of bismuth meal and titanium valve.
Embodiment 4
Carbon composite friction material provided in this embodiment be using silicon-containing ceramic powder modified carbonaceous substance as friction material matrix,
To be carbonized, nano-grade matter is made as lubriation material, wherein the quality volume of lubriation material is basis material quality
15%；Preparation method includes the following steps：
(1) it mixes：Friction material matrix is mixed with lubriation material, handles 4-8h at 80 DEG C in a kettle；
(2) extrusion molding；
(3) it activates：Molding is placed under anoxia condition the activation process 1h at 208 DEG C；
(4) hot pressing：To 120 DEG C after cooling, be placed in hot pressing die 18Mpa, temperature be 120 DEG C at keep 30-60s；
Wherein, friction material matrix proportioning is：Cashew nut shell oil 3kg, resin 393kg, rubber 31kg, silicon-containing ceramic powder 2kg；
Resin is the mixture of polyvinyl resin and acrylic resin；
Wherein, carbonization nano-grade matter is made of following proportioning raw material：Silicon carbide 11kg, aluminium oxide 2kg, barite
11kg, metal powder 4kg, graphite 6kg, oyster shell whiting 5kg, powder diatom ooze 4kg；
The metal powder is bismuth meal and magnesium powder, the mixture of calcium powder.
Embodiment 5
Carbon composite friction material provided in this embodiment be using silicon-containing ceramic powder modified carbonaceous substance as friction material matrix,
To be carbonized, nano-grade matter is made as lubriation material, wherein the quality volume of lubriation material is basis material quality
15%；Preparation method includes the following steps：
(1) it mixes：Friction material matrix is mixed with lubriation material, handles 8h at 98 DEG C in a kettle；
(2) extrusion molding；
(3) it activates：Molding is placed under anoxia condition the activation process 2h at 220 DEG C；
(4) hot pressing：To 150 DEG C after cooling, be placed in hot pressing die 25Mpa, temperature be 150 DEG C at keep 60s；
Wherein, friction material matrix proportioning is：Cashew nut shell oil 5kg, resin 40kg, rubber 33kg, silicon-containing ceramic powder 3kg；
Resin is cyanate ester resin；
Wherein, carbonization nano-grade matter is made of following proportioning raw material：Silicon carbide 17kg, aluminium oxide 5kg, barite
15kg, metal powder 7kg, graphite 8kg, oyster shell whiting 9kg, powder diatom ooze 6kg；
The metal powder is bismuth meal and iron powder, the mixture of aluminium powder；
Embodiment 6
The present embodiment provides the preparation methods of the friction material matrix described in embodiment 1-5, include the following steps：
(1) silicon-containing ceramic powder is placed in blender, mechanical agitation 8min under the conditions of rate is 600r/min；
(2) adjustment stir speed (S.S.) is 360r/min, and cashew nut shell oil is added and stirs 15min；
(3) it by after step (2) gains and resin, rubber mix, is placed under high temperature high vacuum condition and stands 20min, temperature
Degree is 600 DEG C；
(4) step (3) gains are placed in blender, mechanical agitation 10min under the conditions of rate is 560r/min.
Embodiment 7
The present embodiment provides the preparation methods of the carbonization nano-grade matter that rubs described in embodiment 1-5, include the following steps：
(1) metal powder is placed under the conditions of temperature is 1290 DEG C and is heated, be in molten state；
(2) graphite, silicon carbide, aluminium oxide, barite, oyster shell whiting are added into step (1) gains, is then keeping temperature
Degree is passed through the mixed gas of silicon fluoride gas and nitrogen, silicon fluoride under the conditions of being 1290 DEG C：Carbon dioxide：The molar ratio of nitrogen is
1：4：11, flow control is in 85ml/min, processing time 3h；
(3) powder diatom ooze is added into step (2) gains, is uniformly mixed.
Claims (9)
1. a kind of carbon composite friction material, which is characterized in that the material is using silicon-containing ceramic powder modified carbonaceous substance as friction material
Expect matrix, nano-grade matter is made as lubriation material to be carbonized, wherein the quality volume of lubriation material is basis material matter
The 13-17% of amount.
2. carbon composite friction material as described in claim 1, which is characterized in that the friction material matrix is according to mass parts
Proportioning is：2-8 parts of cashew nut shell oil, 38-43 parts of resin, 30-35 parts of rubber, 1-5 parts of silicon-containing ceramic powder.
3. carbon composite friction material as claimed in claim 2, which is characterized in that the resin is phenolic resin, polyethylene
Any one or more mixtures in resin, epoxy resin, acrylic resin, cyanate ester resin.
4. carbon composite friction material as claimed in claim 2, which is characterized in that the preparation method packet of the friction material matrix
Include following steps：
(1) silicon-containing ceramic powder is placed in blender, mechanical agitation 8min under the conditions of rate is 500-700r/min；
(2) adjustment stir speed (S.S.) is 300-480r/min, and cashew nut shell oil is added and stirs 15min；
(3) it by after step (2) gains and resin, rubber mix, is placed under high temperature high vacuum condition and stands 20min, temperature is
500-700℃；
(4) step (3) gains are placed in blender, mechanical agitation 10min under the conditions of rate is 520-600r/min.
5. carbon composite friction material as described in claim 1, which is characterized in that the carbonization nano-grade matter is by following matter
Measure part proportioning raw material composition：10-17 parts of silicon carbide, 2-5 parts of aluminium oxide, 10-15 parts of barite, 3-7 parts of metal powder, graphite 5-8
Part, 4-9 parts of oyster shell whiting, 3-6 parts of powder diatom ooze.
6. carbon composite friction material as claimed in claim 5, which is characterized in that the metal powder includes at least bismuth meal.
7. carbon composite friction material as claimed in claim 5, which is characterized in that the metal powder further include copper powder, iron powder,
It is any one or more in aluminium powder, nickel powder, titanium valve, magnesium powder, calcium powder.
8. carbon composite friction material as claimed in claim 5, which is characterized in that the preparation method of the carbonization nano-grade matter
Include the following steps：
(1) metal powder is placed under the conditions of temperature is 1200-1380 DEG C and is heated, be in molten state；
(2) graphite, silicon carbide, aluminium oxide, barite, oyster shell whiting are added into step (1) gains, is then in holding temperature
The mixed gas of silicon fluoride gas and nitrogen, silicon fluoride are passed through under the conditions of 1200-1380 DEG C：Carbon dioxide：The molar ratio of nitrogen
It is 1：(3-5)：(10-12), flow control is in 70-100ml/min, processing time 2-4h；
(3) powder diatom ooze is added into step (2) gains, is uniformly mixed.
9. a kind of preparation method of carbon composite friction material as described in claim 1, which is characterized in that include the following steps：
(1) it mixes：Friction material matrix is mixed with lubriation material, handles 4-8h at 75-98 DEG C in a kettle；
(2) extrusion molding；
(3) it activates：Molding is placed under anoxia condition the activation process 1-2h at 200-220 DEG C；
(4) hot pressing：To 110-150 DEG C after cooling, be placed in hot pressing die 15-25Mpa, temperature be 110-150 DEG C at keep
30-60s。
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109749708A (en) * | 2018-12-26 | 2019-05-14 | 深圳市欧科力科技有限公司 | A kind of preparation method of metal friction composite material |
| CN112124256A (en) * | 2020-09-08 | 2020-12-25 | 上海国由复合材料科技有限公司 | Tread cleaning device grinder for high-speed motor train and preparation process |
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Application publication date: 20180928 |