CN102816338B - Preparation method of basalt fiber-reinforced friction material - Google Patents
Preparation method of basalt fiber-reinforced friction material Download PDFInfo
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- CN102816338B CN102816338B CN201210313002.7A CN201210313002A CN102816338B CN 102816338 B CN102816338 B CN 102816338B CN 201210313002 A CN201210313002 A CN 201210313002A CN 102816338 B CN102816338 B CN 102816338B
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Abstract
The invention relates to a preparation method of a basalt fiber-reinforced friction material. The reinforced friction material prepared by mixing cashew shell oil modified phenol formaldehyde resin, basalt fiber and filler is formed in a hot pressing mode; and the prepared material can be used for testing on mechanical properties and frictional wear property after being sanded. The invention utilizes the excellent properties of the basalt fiber material, and performs modification in view of the defects of properties in the existing friction material to prepare the novel friction material which has the advantages of high heat stability and excellent mechanical properties; and meanwhile, the technical process is simple and can easily implement industrialized production.
Description
Technical field
The present invention relates to a kind of preparation method of friction materials, be specifically related to a kind of preparation method of basalt fibre enhancing friction materials.
Background technology
The exploitation of Disk type braking system has the meaning of particularly important for the automobile industry construction of China.Brake facing is widely used in Motor vehicles, and friction materials is the key material on brake facing, and its performance quality directly affects the braking effect of drift stop.Desirable friction materials should have good thermostability, makes at high temperature frictional coefficient variation of brake facing little, and thermal wear is little, improves working reliability, increases the service life; There is less brake noise, improve vehicle riding comfort, reduce the noise pollution to environment; In addition, also should have that the wearing and tearing of good physical strength, dual face are less, environment protecting good.Therefore, the material prescription of development of new, the performance of improving friction materials are research emphasis and the direction of brake facing.
Basalt fibre is similar to glass fibre, with carbon fiber, aramid fiber, the hi-tech fibers such as superhigh molecular weight polyethylene fibers are compared, except thering is hi-tech fiber high-strength degree, outside the feature of high-modulus, it is good that basalt fibre also has high thermal resistance, anti-oxidant, radioprotective, adiabatic sound insulation, filterableness is good, incompressible intensity and shearing resistance are high, be adapted to use under various environment and wait excellent properties, and cost performance is good, it is a kind of ceramic of pure natural, also be a kind of new base mateiral and hi-tech fiber that can meet infrastructural industry for the national economy growth requirement.
Summary of the invention
The object of the present invention is to provide a kind of basalt fibre to strengthen the preparation method of friction materials.The material Heat stability is good of making by preparation method of the present invention, every mechanical property excellence, technological process is simple simultaneously, is easy to realize suitability for industrialized production.
For achieving the above object, the technical solution used in the present invention is:
1) first, by weight percentage by 27% cupric sulfide, 27% aluminium sesquioxide, 19% graphite, after 13.5% calcium carbonate and 13.5% barium sulfate mix ball milling even filler;
2) secondly, get by weight percentage 24% cashew nut oil modified resol, the basalt fibre of 5-35% and the filler of 41-71%, add cashew nut oil modified resol in filler, to continue ball milling 6h, then add basalt fibre ball milling 2h to obtain compound;
3) by compound preheating 20 minutes at 80 DEG C;
4) by the compound after preheating in mould under normal temperature, after 2MPa precompressed 10min, adherence pressure is to 50MPa, temperature to 160 DEG C, hot pressing 30min is cooled to 120 DEG C of insulation 1h, then is warming up to 160 DEG C of insulation 2h, is again warming up to 200 DEG C of insulation 10h and obtains basalt fibre enhancing friction materials.
The diameter of described basalt fibre is 20 μ m, and length is 0.7-1.5mm.
The present invention is with cashew nut oil modified resol, and the enhancing friction materials that basalt fibre and filler are mixed with, adopts hot pressing mode moulding, and the material of preparation can be carried out to mechanical property through polishing, friction and wear behavior test.The invention has the advantages that the excellent properties that utilizes basalt fiber material itself, performance shortcomings for existing friction materials is carried out modification, to prepare Heat stability is good, and the new-type friction material of every mechanical property excellence, technological process is simple simultaneously, is easy to realize suitability for industrialized production.
Embodiment
Embodiment 1:
1) first, by weight percentage by 27% cupric sulfide, 27% aluminium sesquioxide, 19% graphite, after 13.5% calcium carbonate and 13.5% barium sulfate mix ball milling even filler;
2) secondly, get by weight percentage 24% cashew nut oil modified resol, 5% diameter is 20 μ m, length is the basalt fibre of 0.7-1.5mm and 71% filler, cashew nut oil modified resol is added and in filler, continues ball milling 6h, then add basalt fibre ball milling 2h to obtain compound;
3) by compound preheating 20 minutes at 80 DEG C;
4) by the compound after preheating in mould under normal temperature, after 2MPa precompressed 10min, adherence pressure is to 50MPa, temperature to 160 DEG C, hot pressing 30min is cooled to 120 DEG C of insulation 1h, then is warming up to 160 DEG C of insulation 2h, is again warming up to 200 DEG C of insulation 10h and obtains basalt fibre enhancing friction materials.
Embodiment 2:
1) first, by weight percentage by 27% cupric sulfide, 27% aluminium sesquioxide, 19% graphite, after 13.5% calcium carbonate and 13.5% barium sulfate mix ball milling even filler;
2) secondly, get by weight percentage 24% cashew nut oil modified resol, 10% diameter is 20 μ m, length is the basalt fibre of 0.7-1.5mm and 66% filler, cashew nut oil modified resol is added and in filler, continues ball milling 6h, then add basalt fibre ball milling 2h to obtain compound;
3) by compound preheating 20 minutes at 80 DEG C;
4) by the compound after preheating in mould under normal temperature, after 2MPa precompressed 10min, adherence pressure is to 50MPa, temperature to 160 DEG C, hot pressing 30min is cooled to 120 DEG C of insulation 1h, then is warming up to 160 DEG C of insulation 2h, is again warming up to 200 DEG C of insulation 10h and obtains basalt fibre enhancing friction materials.
Embodiment 3:
1) first, by weight percentage by 27% cupric sulfide, 27% aluminium sesquioxide, 19% graphite, after 13.5% calcium carbonate and 13.5% barium sulfate mix ball milling even filler;
2) secondly, get by weight percentage 24% cashew nut oil modified resol, 15% diameter is 20 μ m, length is the basalt fibre of 0.7-1.5mm and 61% filler, cashew nut oil modified resol is added and in filler, continues ball milling 6h, then add basalt fibre ball milling 2h to obtain compound;
3) by compound preheating 20 minutes at 80 DEG C;
4) by the compound after preheating in mould under normal temperature, after 2MPa precompressed 10min, adherence pressure is to 50MPa, temperature to 160 DEG C, hot pressing 30min is cooled to 120 DEG C of insulation 1h, then is warming up to 160 DEG C of insulation 2h, is again warming up to 200 DEG C of insulation 10h and obtains basalt fibre enhancing friction materials.
Embodiment 4:
1) first, by weight percentage by 27% cupric sulfide, 27% aluminium sesquioxide, 19% graphite, after 13.5% calcium carbonate and 13.5% barium sulfate mix ball milling even filler;
2) secondly, get by weight percentage 24% cashew nut oil modified resol, 20% diameter is 20 μ m, length is the basalt fibre of 0.7-1.5mm and 56% filler, cashew nut oil modified resol is added and in filler, continues ball milling 6h, then add basalt fibre ball milling 2h to obtain compound;
3) by compound preheating 20 minutes at 80 DEG C;
4) by the compound after preheating in mould under normal temperature, after 2MPa precompressed 10min, adherence pressure is to 50MPa, temperature to 160 DEG C, hot pressing 30min is cooled to 120 DEG C of insulation 1h, then is warming up to 160 DEG C of insulation 2h, is again warming up to 200 DEG C of insulation 10h and obtains basalt fibre enhancing friction materials.
Embodiment 5:
1) first, by weight percentage by 27% cupric sulfide, 27% aluminium sesquioxide, 19% graphite, after 13.5% calcium carbonate and 13.5% barium sulfate mix ball milling even filler;
2) secondly, get by weight percentage 24% cashew nut oil modified resol, 25% diameter is 20 μ m, length is the basalt fibre of 0.7-1.5mm and 51% filler, cashew nut oil modified resol is added and in filler, continues ball milling 6h, then add basalt fibre ball milling 2h to obtain compound;
3) by compound preheating 20 minutes at 80 DEG C;
4) by the compound after preheating in mould under normal temperature, after 2MPa precompressed 10min, adherence pressure is to 50MPa, temperature to 160 DEG C, hot pressing 30min is cooled to 120 DEG C of insulation 1h, then is warming up to 160 DEG C of insulation 2h, is again warming up to 200 DEG C of insulation 10h and obtains basalt fibre enhancing friction materials.
Embodiment 6:
1) first, by weight percentage by 27% cupric sulfide, 27% aluminium sesquioxide, 19% graphite, after 13.5% calcium carbonate and 13.5% barium sulfate mix ball milling even filler;
2) secondly, get by weight percentage 24% cashew nut oil modified resol, 30% diameter is 20 μ m, length is the basalt fibre of 0.7-1.5mm and 46% filler, cashew nut oil modified resol is added and in filler, continues ball milling 6h, then add basalt fibre ball milling 2h to obtain compound;
3) by compound preheating 20 minutes at 80 DEG C;
4) by the compound after preheating in mould under normal temperature, after 2MPa precompressed 10min, adherence pressure is to 50MPa, temperature to 160 DEG C, hot pressing 30min is cooled to 120 DEG C of insulation 1h, then is warming up to 160 DEG C of insulation 2h, is again warming up to 200 DEG C of insulation 10h and obtains basalt fibre enhancing friction materials.
Embodiment 7:
1) first, by weight percentage by 27% cupric sulfide, 27% aluminium sesquioxide, 19% graphite, after 13.5% calcium carbonate and 13.5% barium sulfate mix ball milling even filler;
2) secondly, get by weight percentage 24% cashew nut oil modified resol, 35% diameter is 20 μ m, length is the basalt fibre of 0.7-1.5mm and 41% filler, cashew nut oil modified resol is added and in filler, continues ball milling 6h, then add basalt fibre ball milling 2h to obtain compound;
3) by compound preheating 20 minutes at 80 DEG C;
4) by the compound after preheating in mould under normal temperature, after 2MPa precompressed 10min, adherence pressure is to 50MPa, temperature to 160 DEG C, hot pressing 30min is cooled to 120 DEG C of insulation 1h, then is warming up to 160 DEG C of insulation 2h, is again warming up to 200 DEG C of insulation 10h and obtains basalt fibre enhancing friction materials.
Basalt fibre prepared by embodiment 1-7 strengthens friction materials on XDMSM constant speed formula frictional testing machines, carries out friction and wear behavior experiment by GB5763-1998 standard; By XHR-150 plastic Rockwell hardometer mensuration sample hardness; Impact the shock strength of trier mensuration sample with Xl-50Z type built-up type, specimen size: 55mm × 10mm × 6mm.Friction disc material is HT25 graphitic cast iron, pearlitic structure, and hardness is HB180 ~ 220.Sample friction area is 25mm × 25mm × 5mm, and it the results are shown in Table 1,2:
Table 1 is hardness and the shock strength test result that the basalt fibre prepared of embodiment 1-7 strengthens friction materials
Table 2 is measurement results that the basalt fibre prepared of embodiment 1-7 strengthens friction materials wear rate under differing temps
Claims (2)
1. basalt fibre strengthens a preparation method for friction materials, it is characterized in that:
1) first, by weight percentage by 27% cupric sulfide, 27% aluminium sesquioxide, 19% graphite, after 13.5% calcium carbonate and 13.5% barium sulfate mix ball milling even filler;
2) secondly, get by weight percentage 24% cashew nut oil modified resol, the basalt fibre of 5-35% and the filler of 41-71%, add cashew nut oil modified resol in filler, to continue ball milling 6h, then add basalt fibre ball milling 2h to obtain compound;
3) by compound preheating 20 minutes at 80 DEG C;
4) by the compound after preheating in mould under normal temperature, after 2MPa precompressed 10min, adherence pressure is to 50MPa, temperature to 160 DEG C, hot pressing 30min is cooled to 120 DEG C of insulation 1h, then is warming up to 160 DEG C of insulation 2h, is again warming up to 200 DEG C of insulation 10h and obtains basalt fibre enhancing friction materials.
2. basalt fibre according to claim 1 strengthens the preparation method of friction materials, it is characterized in that: the diameter of described basalt fibre is 20 μ m, and length is 0.7-1.5mm.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210313002.7A CN102816338B (en) | 2012-08-29 | 2012-08-29 | Preparation method of basalt fiber-reinforced friction material |
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| CN201210313002.7A CN102816338B (en) | 2012-08-29 | 2012-08-29 | Preparation method of basalt fiber-reinforced friction material |
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| CN102816338B true CN102816338B (en) | 2014-07-30 |
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Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104830020A (en) * | 2015-04-03 | 2015-08-12 | 陕西科技大学 | Andesite fiber reinforced friction material and preparation method thereof |
| CN105733506B (en) * | 2016-01-28 | 2018-01-26 | 广西民族大学 | Coefficient of friction basalt fibre enhancing friction material and preparation method in the low load of high speed |
| CN105733174B (en) * | 2016-02-02 | 2017-12-12 | 东南大学 | A kind of preparation method of fiber surface-processing method and fibre reinforced composites and composite |
| CN106117955B (en) * | 2016-06-29 | 2018-09-21 | 黄石金朝阳粉末材料有限责任公司 | Basalt ultra-fine fibre is used to prepare to the methods and applications of brake block |
| CN106041372B (en) * | 2016-07-11 | 2018-03-30 | 湖南银阁铝业有限公司 | A kind of granule modified method for preparing aluminium alloy welding wire of basalt |
| CN106190029A (en) * | 2016-07-11 | 2016-12-07 | 雷春生 | A kind of preparation method of automobile-used low noise antifriction material |
| CN107216602B (en) * | 2017-05-08 | 2019-05-24 | 武汉理工大学 | A kind of clutch driven plate friction material and preparation method thereof |
| CN108456395A (en) * | 2018-02-02 | 2018-08-28 | 西安交通大学 | A kind of basalt reinforced resin base braking composite material and preparation method thereof |
| CN114276047B (en) * | 2021-12-31 | 2023-06-30 | 武汉中科先进材料科技有限公司 | High-strength wear-resistant friction material and preparation method thereof |
| CN114957743B (en) * | 2022-06-30 | 2023-12-22 | 河南大张过滤技术研究院有限公司 | Copper sulfide nanosheet coated basalt fiber reinforced polypropylene composite material and preparation method thereof |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102408671A (en) * | 2011-07-22 | 2012-04-11 | 江苏安捷汽车配件有限公司 | Hemp fiber doped saloon car brake pad and preparation process thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102408671A (en) * | 2011-07-22 | 2012-04-11 | 江苏安捷汽车配件有限公司 | Hemp fiber doped saloon car brake pad and preparation process thereof |
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