CN105802580A - Method for preparing carbon/silicon carbide composite friction material - Google Patents
Method for preparing carbon/silicon carbide composite friction material Download PDFInfo
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- CN105802580A CN105802580A CN201610132952.8A CN201610132952A CN105802580A CN 105802580 A CN105802580 A CN 105802580A CN 201610132952 A CN201610132952 A CN 201610132952A CN 105802580 A CN105802580 A CN 105802580A
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
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- C09K3/14—Anti-slip materials; Abrasives
- C09K3/1436—Composite particles, e.g. coated particles
Abstract
The invention provides a method for preparing a carbon/silicon carbide composite friction material. The method comprises the following steps: firstly, adding phenolic resin, hexamethylenetetramine, soya bean lecithin and 2,3-glycidyl trimethyl ammonium chloride into absolute ethyl alcohol, stirring, adding carbon fiber, leaving to stand, filtering, and drying solid so as to obtain a prefabricated material; further heating and curing the prefabricated material, and performing high-temperature carbonization so as to obtain a porous material; heating zinc fatty acid, heating to 150-170 DEG C, adding silicon carbide powder, stirring, cooling, further adding polyethyleneimine, glycerol, ethylene bis stearamide, and sulfomethal phenolaldehy resin, heating and mixing, and cooling to the room temperature so as to obtain a mixture; finally, adding the porous material to the mixture, performing infiltration treatment, and drying the obtained solid, thereby obtaining the carbon/silicon carbide composite friction material. The carbon/silicon carbide composite friction material provided by the invention is good in friction brake property.
Description
Technical field
The invention belongs to friction materials technology field, be specifically related to the preparation method of a kind of carbon/silicon carbide compound friction material.
Background technology
Along with profit learn a skill continuous progressive, the vehicles such as bullet train, automobile and aircraft gradually at a high speed, heavy duty, peace
The full direction such as comfortable is developed, so that the thermal force acted on brake gear acutely increases.Such as during automobile brake, system
Moving part reaches 500～600 DEG C with the temperature rise of brake disk surface；And up to 700～800 DEG C during Train brake；During aircraft landing braking,
Brake disc friction surface temperature is up to 1000～1100 DEG C, and brake temperature when large-scale supersonic speed flies and shallow bucket machine of fighting lands can be high
Reach 1300 DEG C.Additionally, brake material still to keep stable mechanical performance under standing hundreds of high temperature impacts, sustain
High temperature, the test of thermal shock heavily stressed, high.This constantly studies with regard to an urgent demand has sufficient intensity under high specific heat, high temperature
High performance brake material is to meet modern means of communication requirements of one's work under heavy duty and super-heavy load brake condition.Therefore, research
Exploitation novel high-performance brake material becomes current focus.
C/SiC composite, i.e. with carbon fiber as reinforcement, the composite with carbon, carborundum as matrix, is the powder smelting that continues
After gold and C/C composite, a kind of high-performance composite materials grown up in recent years.C/SiC has and overcomes friction material
The potentiality of material shortcoming, static, dynamic friction coefficient is above friction material, and wear rate quite or is better than friction material.Except tool
There is high specific strength that composite possessed, high ratio modulus, excellent high-temperature mechanical property, high high-temp stability, highly thermally conductive
Outside a series of premium properties such as rate and low thermal coefficient of expansion, C/SiC composite also has densification degree height, service life
Premium properties long, that a series of composites such as environmental suitability is strong are not had, especially its non-oxidizability highlighted,
Ablation resistance and low abrasion performance so that it is as structural material and function material powder can meet less than 1650 DEG C long-lives, 2000 DEG C
Following finite lifetime, the use requirement in less than 2800 DEG C instantaneous life-spans, be applied to many high frontiers such as Aero-Space.
In three kinds of techniques CVI, PIP and LSI very can realizing preparing C/SiC composite friction material, CVI Yu PIP matrix
Densification rate is low, and the production cycle is oversize, with high costs, is inevitably present the porosity of 10～20% in material simultaneously,
Cause final products thermal conductivity to decline, be unfavorable for that brake disc normally works.By contrast, LSI technique is simple, it is not necessary to repeat
Any step process link, final products consistency is high, can realize dead size molding.But Successful utilization LSI technique preparative
C/SiC composite that can be excellent needs suitable concrete dynamic modulus C/C composite wood half and is difficult to full as precast body, prior art
This requirement of foot.
Summary of the invention
It is an object of the invention to overcome the deficiencies in the prior art to provide the preparation method of a kind of carbon/silicon carbide compound friction material,
Gained composite friction material has good frictional damping performance.
The preparation method of a kind of carbon/silicon carbide compound friction material, comprises the following steps:
Step 1, in parts by weight, by phenolic resin 10～20 parts, hexamethylenetetramine 2～5 parts, soybean lecithin 1～
4 parts, 2,3-epoxypropyltrimethylchloride chloride 0.2～0.6 part add in dehydrated alcohol 30～50 parts, and stirring adds carbon fine
Tieing up 10～20 parts, stand, filter, solids is dried, and obtains prefabricated material；
Step 2, is heating and curing prefabricated for step 1 gained material, obtains solidifying substance；
Step 3, by step 2 gained solidifying substance high temperature cabonization, obtains porous material；
Step 4, in parts by weight, takes fatty acid zinc 20～30 parts, is heated to 150～170 DEG C, add silicon carbide powder 20～
30 parts, stirring, add polymine 2～4 parts, glycerol 10～20 parts, ethylene bis stearamide 5～10 after cooling
Part, sulfonated phenol formaldehyde resin 1～6 parts, heat up mixing, is cooled to room temperature, obtains mixture；
Step 5, adds to carry out in step 4 gained mixture infiltration process by step 3 gained porous material, and gained solids dries
Dry, to obtain final product.
Further, in step 2, condition of cure is 300～500 DEG C, 2～6h.
Further, in step 3, Carbonization Conditions is 900～1300 DEG C, 12～24h.
Further, the temperature of the mixing that heats up in step 4 is 40～50 DEG C, and the time is 20～30min.
Further, in step 5, infiltration processes and carries out at vacuum condition, and vacuum is 0.08～0.1MPa.
Further, the temperature that in step 5, infiltration processes is 1400～1700 DEG C, and the time is 2～5h.
Further, step 5 also needs to add carboxymethyl starch 5～10 parts.
Carbon/silicon carbide compound friction material that the present invention provides has good frictional damping performance.
Detailed description of the invention
Embodiment 1
The preparation method of a kind of carbon/silicon carbide compound friction material, comprises the following steps:
Step 1, in parts by weight, by 10 parts of phenolic resin, hexamethylenetetramine 2 parts, soybean lecithin 1 part, 2,3-
Epoxypropyltrimethylchloride chloride 0.2 part adds in dehydrated alcohol 30 parts, stirring, adds 10 parts of carbon fiber, stands, and filters,
Solids is dried, and obtains prefabricated material；
Step 2, is heating and curing prefabricated for step 1 gained material, obtains solidifying substance；
Step 3, by step 2 gained solidifying substance high temperature cabonization, obtains porous material；
Step 4, in parts by weight, takes fatty acid zinc 20 parts, is heated to 150 DEG C, adds silicon carbide powder 20 parts, stirs,
Add polymine 2 parts, glycerol 10 parts, ethylene bis stearamide 5 parts, sulfonated phenol formaldehyde resin 1 part after cooling, rise
Temperature mixing, is cooled to room temperature, obtains mixture；
Step 5, adds to carry out in step 4 gained mixture infiltration process by step 3 gained porous material, and gained solids dries
Dry, to obtain final product.
Wherein, in step 2, condition of cure is 300 DEG C, 6h；In step 3, Carbonization Conditions is 900 DEG C, 24h；In step 4
The temperature mixed that heats up is 40 DEG C, and the time is 30min；In step 5, infiltration processes and carries out at vacuum condition, vacuum
For 0.08MPa, the temperature that infiltration processes is 1400 DEG C, and the time is 5h.
Embodiment 2
The preparation method of a kind of carbon/silicon carbide compound friction material, comprises the following steps:
Step 1, in parts by weight, by 17 parts of phenolic resin, hexamethylenetetramine 4 parts, soybean lecithin 2 parts, 2,3-
Epoxypropyltrimethylchloride chloride 0.5 part adds in dehydrated alcohol 35 parts, stirring, adds 14 parts of carbon fiber, stands, and filters,
Solids is dried, and obtains prefabricated material；
Step 2, is heating and curing prefabricated for step 1 gained material, obtains solidifying substance；
Step 3, by step 2 gained solidifying substance high temperature cabonization, obtains porous material；
Step 4, in parts by weight, takes fatty acid zinc 25 parts, is heated to 150 DEG C, adds silicon carbide powder 29 parts, stirs,
Add polymine 3 parts, glycerol 12 parts, ethylene bis stearamide 9 parts, sulfonated phenol formaldehyde resin 2 parts after cooling, rise
Temperature mixing, is cooled to room temperature, obtains mixture；
Step 5, adds to carry out in step 4 gained mixture infiltration process by step 3 gained porous material, and gained solids dries
Dry, to obtain final product.
Wherein, in step 2, condition of cure is 370 DEG C, 4h；In step 3, Carbonization Conditions is 1200 DEG C, 15h；In step 4
The temperature mixed that heats up is 44 DEG C, and the time is 25min；In step 5, infiltration processes and carries out at vacuum condition, vacuum
For 0.09MPa, the temperature that infiltration processes is 1600 DEG C, and the time is 2h.
Embodiment 3
The preparation method of a kind of carbon/silicon carbide compound friction material, comprises the following steps:
Step 1, in parts by weight, by 14 parts of phenolic resin, hexamethylenetetramine 3 parts, soybean lecithin 2 parts, 2,3-
Epoxypropyltrimethylchloride chloride 0.5 part adds in dehydrated alcohol 40 parts, stirring, adds 17 parts of carbon fiber, stands, and filters,
Solids is dried, and obtains prefabricated material；
Step 2, is heating and curing prefabricated for step 1 gained material, obtains solidifying substance；
Step 3, by step 2 gained solidifying substance high temperature cabonization, obtains porous material；
Step 4, in parts by weight, takes fatty acid zinc 24 parts, is heated to 160 DEG C, adds silicon carbide powder 27 parts, stirs,
Add polymine 3 parts, glycerol 16 parts, ethylene bis stearamide 8 parts, sulfonated phenol formaldehyde resin 5 parts after cooling, rise
Temperature mixing, is cooled to room temperature, obtains mixture；
Step 5, adds to carry out in step 4 gained mixture infiltration process by step 3 gained porous material, and gained solids dries
Dry, to obtain final product.
Wherein, in step 2, condition of cure is 300 DEG C, 6h；In step 3, Carbonization Conditions is 900 DEG C, 24h；In step 4
The temperature mixed that heats up is 45 DEG C, and the time is 20min；In step 5, infiltration processes and carries out at vacuum condition, vacuum
For 0.1MPa, the temperature that infiltration processes is 1600 DEG C, and the time is 3h.
Embodiment 4
The preparation method of a kind of carbon/silicon carbide compound friction material, comprises the following steps:
Step 1, in parts by weight, by 20 parts of phenolic resin, hexamethylenetetramine 5 parts, soybean lecithin 4 parts, 2,3-
Epoxypropyltrimethylchloride chloride 0.6 part adds in dehydrated alcohol 50 parts, stirring, adds 20 parts of carbon fiber, stands, and filters,
Solids is dried, and obtains prefabricated material；
Step 2, is heating and curing prefabricated for step 1 gained material, obtains solidifying substance；
Step 3, by step 2 gained solidifying substance high temperature cabonization, obtains porous material；
Step 4, in parts by weight, takes fatty acid zinc 30 parts, is heated to 170 DEG C, adds silicon carbide powder 30 parts, stirs,
Polymine 4 parts, glycerol 20 parts, ethylene bis stearamide 10 parts, sulfonated phenol formaldehyde resin 6 parts is added after cooling,
Heat up mixing, is cooled to room temperature, obtains mixture；
Step 5, adds to carry out in step 4 gained mixture infiltration process by step 3 gained porous material, and gained solids dries
Dry, to obtain final product.
Wherein, in step 2, condition of cure is 500 DEG C, 2h；In step 3, Carbonization Conditions is 1300 DEG C, 12h；In step 4
The temperature mixed that heats up is 40 DEG C, and the time is 30min；In step 5, infiltration processes and carries out at vacuum condition, vacuum
For 0.08MPa, the temperature that infiltration processes is 1400 DEG C, and the time is 5h.
Embodiment 5
The present embodiment is with the difference of embodiment 4: also need in step 5 add carboxymethyl starch 5～10 parts.
The preparation method of a kind of carbon/silicon carbide compound friction material, comprises the following steps:
Step 1, in parts by weight, by 20 parts of phenolic resin, hexamethylenetetramine 5 parts, soybean lecithin 4 parts, 2,3-
Epoxypropyltrimethylchloride chloride 0.6 part adds in dehydrated alcohol 50 parts, stirring, adds 20 parts of carbon fiber, stands, and filters,
Solids is dried, and obtains prefabricated material；
Step 2, is heating and curing prefabricated for step 1 gained material, obtains solidifying substance；
Step 3, by step 2 gained solidifying substance high temperature cabonization, obtains porous material；
Step 4, in parts by weight, takes fatty acid zinc 30 parts, is heated to 170 DEG C, adds silicon carbide powder 30 parts, stirs,
Polymine 4 parts, glycerol 20 parts, ethylene bis stearamide 10 parts, sulfonated phenol formaldehyde resin 6 parts is added after cooling,
Heat up mixing, is cooled to room temperature, obtains mixture；
Step 5, adds to infiltrate in step 4 gained mixture by step 3 gained porous material, carboxymethyl starch 10 parts
Processing, gained solids is dried, and to obtain final product.
Wherein, in step 2, condition of cure is 500 DEG C, 2h；In step 3, Carbonization Conditions is 1300 DEG C, 12h；In step 4
The temperature mixed that heats up is 40 DEG C, and the time is 30min；In step 5, infiltration processes and carries out at vacuum condition, vacuum
For 0.08MPa, the temperature that infiltration processes is 1400 DEG C, and the time is 5h.
Performance test
Using the braking quality of the friction braking material of the MM-1000 frictional testing machine test present invention, test condition is: inertia
3.8kgf·cm·s2, than pressure 100N/cm2, linear velocity 25m/s.Result is as follows:
| Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 | Embodiment 5 | |
| Bending strength MPa | 170 | 170 | 175 | 185 | 192 |
| Average dry friction coefficient | 0.32 | 0.33 | 0.37 | 0.42 | 0.45 |
| Average wet friction coefficient | 0.24 | 0.25 | 0.25 | 0.31 | 0.32 |
| Line wear rate μm/face time | 1.02 | 1.03 | 1.01 | 0.95 | 0.93 |
| Fracture toughness MPa m1/2 | 5.12 | 5.13 | 5.14 | 5.47 | 5.67 |
As can be seen from the table, the composite friction material that the present invention provides has good frictional damping performance.
Claims (7)
1. the preparation method of carbon/silicon carbide compound friction material, it is characterised in that: comprise the following steps:
Step 1, in parts by weight, by phenolic resin 10～20 parts, hexamethylenetetramine 2～5 parts, soybean lecithin 1～4 parts, 2,3-epoxypropyltrimethylchloride chloride 0.2～0.6 part add in dehydrated alcohol 30～50 parts, stirring, add carbon fiber 10～20 parts, stand, filtering, solids is dried, and obtains prefabricated material；
Step 2, is heating and curing prefabricated for step 1 gained material, obtains solidifying substance；
Step 3, by step 2 gained solidifying substance high temperature cabonization, obtains porous material；
Step 4, in parts by weight, take fatty acid zinc 20～30 parts, it is heated to 150～170 DEG C, addition silicon carbide powder 20～30 parts, stirring, polymine 2～4 parts, glycerol 10～20 parts, ethylene bis stearamide 5～10 parts, sulfonated phenol formaldehyde resin 1～6 parts are added after cooling, heat up mixing, is cooled to room temperature, obtains mixture；
Step 5, adds to carry out in step 4 gained mixture infiltration process by step 3 gained porous material, and gained solids is dried, and to obtain final product.
The preparation method of carbon the most according to claim 1/silicon carbide compound friction material, it is characterised in that: in step 2, condition of cure is 300～500 DEG C, 2～6h.
The preparation method of carbon the most according to claim 1/silicon carbide compound friction material, it is characterised in that: in step 3, Carbonization Conditions is 900～1300 DEG C, 12～24h.
The preparation method of carbon the most according to claim 1/silicon carbide compound friction material, it is characterised in that: the temperature of the mixing that heats up in step 4 is 40～50 DEG C, and the time is 20～30min.
The preparation method of carbon the most according to claim 1/silicon carbide compound friction material, it is characterised in that: in step 5, infiltration processes and carries out at vacuum condition, and vacuum is 0.08～0.1MPa.
The preparation method of carbon the most according to claim 1/silicon carbide compound friction material, it is characterised in that: the temperature that in step 5, infiltration processes is 1400～1700 DEG C, and the time is 2～5h.
The preparation method of carbon the most according to claim 1/silicon carbide compound friction material, it is characterised in that: step 5 also needs to add carboxymethyl starch 5～10 parts.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106763335A (en) * | 2016-12-28 | 2017-05-31 | 山东正凯机械科技有限公司 | A kind of preparation method of the modified carbon fiber based brake disc of lighting |
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| CN106507782B (en) * | 2004-11-29 | 2017-03-15 | 西北工业大学 | The manufacture method of carbon/carborundum brake material |
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Application publication date: 20160727 |