CN107383478A - A kind of damping noise reduction automobile brake pincers use seal quality of rubber materials - Google Patents
A kind of damping noise reduction automobile brake pincers use seal quality of rubber materials Download PDFInfo
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- CN107383478A CN107383478A CN201710739085.9A CN201710739085A CN107383478A CN 107383478 A CN107383478 A CN 107383478A CN 201710739085 A CN201710739085 A CN 201710739085A CN 107383478 A CN107383478 A CN 107383478A
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- noise reduction
- damping noise
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L9/00—Compositions of homopolymers or copolymers of conjugated diene hydrocarbons
- C08L9/02—Copolymers with acrylonitrile
Abstract
The present invention relates to caliper seal processing technique field,Disclose a kind of damping noise reduction automobile brake pincers seal quality of rubber materials,In nitrile rubber,Add silicon nitride,Cellulose acetate,Graphite,Tert-butyl group alcohol carries out mixed and modified,It is prepared for a kind of new composite rubber material being used on caliper,The material has excellent self-lubricating property,The aging agent used is that rare earth element and existing aging agent are carried out into complexation reaction using cohesion coprecipitation,Obtained high coordination organic composite material,Combined closely in the form of granule with colloid,Rubber can be significantly improved draws high intensity and tearing strength,It also can obviously reduce the permanent deformation of rubber,The present invention is modified to nitrile rubber,Improve self-lubricating property,Add fibre composition,Improve the bearing capacity and physical and mechanical property of rubber,Damping noise reduction effect is fabulous.
Description
Technical field
The invention belongs to caliper seal processing technique field, and in particular to a kind of damping noise reduction automobile brake pincers are used
Seal quality of rubber materials.
Background technology
Seal be prevent fluid or solia particle from leak and prevent between adjacent faying face introduced contaminants such as dust with
The material or part of parts inside the intrusion machinery equipment such as moisture.Though seal processing industry is small, the face involved is very wide.
By materials classification：It is divided into NBR, ethylene propylene diene rubber, fluorubber, silica gel, fluorosioloxane rubber, nylon, polyurethane, engineering plastics
Deng in the last few years, the production of China's rubber seal productses and quality were progressed into a new stage, new period.But
Only these far can not also meet other industry developments all kinds of rubber seal productses are standardized, the needs of tandem product,
Particularly compared with international advanced country, China's product has quite big no matter in product quality, or in terms of product variety
Gap.Automobile brake pincers refer to produce the power for hindering vehicle movement or movement tendency（Brake force）Part, install and use
Seal can extend its service life, total abrasion of axle and bearing be improved, now for the research of automobile brake jaw seals part
Focus mostly at the wear-resistant aspect of quality of rubber materials, and because the impact shock that brings of friction stop and noise turn into ignored portion
Point.
The content of the invention
The purpose of the present invention is to be directed to the problem of existing, there is provided a kind of damping noise reduction automobile brake pincers use seal rubber
Material, nitrile rubber is modified, improves self-lubricating property, add fibre composition, improve the bearing capacity and physics of rubber
Mechanical property, damping noise reduction effect are fabulous.
The present invention is achieved by the following technical solutions：
A kind of damping noise reduction automobile brake pincers use seal quality of rubber materials, are made up in parts by weight of following component：Butyronitrile rubber
Glue 90-100 parts, silicon nitride 1.2-1.5 parts, cellulose acetate 8-10 parts, graphite 0.5-0.8 parts, sodium molybdate 3-5 parts, the tert-butyl group
Alcohol 10-12 parts, DHP 0.4-0.6 parts, sulphur 0.2-0.3 parts, inorganic filler 7-9 parts, vulcanization accelerator
0.1-0.2 parts, age resistor 0.1-0.3 parts；
Its preparation method is：Nitrile rubber is put into plastics processing mill and plastified, plasticization temperature is 200-230 DEG C, entirely reaches melting
After state, 1-2 hours are incubated, add silicon nitride, cellulose acetate, graphite, tert-butyl group alcohol, mechanical agitation, at 300-350 DEG C
3-5 hours of continuing to plasticate obtain modified nitrile rubber, on this basis, add sulphur, inorganic filler, vulcanization accelerator,
It is kneaded in mill uniformly, melting temperature is 120-150 DEG C, and residual components are added after cooling and are carried out on open kneading machine
It is kneaded, produces the quality of rubber materials.
As further improvement of these options, described inorganic filler according to mass percent meter contain it is following into
Point：Carbon black accounts for 30-35%, montmorillonite accounts for 20-25%, kaolin accounts for 15-25%, calcium carbonate accounts for 5-10%, remaining as talcum powder.
As further improvement of these options, described vulcanization accelerator according to mass percent meter contain it is following into
Point：Dibenzothiazyl disulfide accounts for 25-35%, basic carbonate calcium accounts for 15-20%, lead oxide accounts for 10-15%, calcium oxide accounts for 5-10%,
Magnesia accounts for 5-10%, remaining as zinc oxide.
As further improvement of these options, described age resistor is made up of following raw material in parts by weight：Oxygen
Change lanthanum 1-2 parts, praseodymium oxide 2-3 parts, europium oxide 3-4 parts, N- hexamethylene-N ,-diphenyl-para-phenylene diamine 40-50 part, 2,6-, bis- tertiary fourths
Base -4- cresols 35-45 parts, stearic acid 30-40 parts, acetone 70-80 parts, by above-mentioned raw materials using cohesion coprecipitation reaction
1.5-2.0 hours, by filtering, washing, being drying to obtain.
The present invention has advantages below compared with prior art：Brought to solve existing automobile brake pincers because of friction stop
Impact shock and noise problem, the invention provides a kind of damping noise reduction automobile brake pincers seal quality of rubber materials, in butyronitrile
In rubber, add silicon nitride, cellulose acetate, graphite, tert-butyl group alcohol and carry out mixed and modified, be prepared for a kind of new being used to make
Composite rubber material on dynamic pincers, the material have excellent self-lubricating property, and the aging agent used is using cohesion co-precipitation
Rare earth element and existing aging agent are carried out complexation reaction by method, obtained high coordination organic composite material, in the form of granule
Combined closely with colloid, can significantly improve rubber draws high intensity and tearing strength, also can obviously reduce the permanent change of rubber
Shape, the present invention nitrile rubber is modified, improve self-lubricating property, add fibre composition, improve rubber bearing capacity and
Physical and mechanical property, damping noise reduction effect are fabulous.
Embodiment
With reference to specific embodiment, the invention will be further described.
Embodiment 1
A kind of damping noise reduction automobile brake pincers use seal quality of rubber materials, are made up in parts by weight of following component：Butyronitrile rubber
90 parts of glue, 1.2 parts of silicon nitride, 8 parts of cellulose acetate, 0.5 part of graphite, 3 parts of sodium molybdate, 10 parts of tert-butyl group alcohol, phthalic acid
0.4 part of dihexyl, 0.2 part of sulphur, 7 parts of inorganic filler, 0.1 part of vulcanization accelerator, 0.1 part of age resistor；
Its preparation method is：Nitrile rubber is put into plastics processing mill and plastified, plasticization temperature is 200 DEG C, entirely reaches molten condition
Afterwards, 1 hour is incubated, adds silicon nitride, cellulose acetate, graphite, tert-butyl group alcohol, mechanical agitation continues to plasticate 3 at 300 DEG C
Hour obtains modified nitrile rubber, on this basis, adds sulphur, inorganic filler, vulcanization accelerator, is mixed in mill
Refining is uniform, and melting temperature is 120 DEG C, and residual components are added after cooling and are kneaded on open kneading machine, produce the rubber
Glue material matter.
As further improvement of these options, described inorganic filler according to mass percent meter contain it is following into
Point：Carbon black, which accounts for 30%, montmorillonite and accounts for 20%, kaolin and account for 15%, calcium carbonate, accounts for 5%, remaining as talcum powder.
As further improvement of these options, described vulcanization accelerator according to mass percent meter contain it is following into
Point：Dibenzothiazyl disulfide, which accounts for 25%, basic carbonate calcium and accounts for 15%, lead oxide and account for 10%, calcium oxide and account for 5%, magnesia, to be accounted for 5%, is surplus
Remaining is zinc oxide.
As further improvement of these options, described age resistor is made up of following raw material in parts by weight：Oxygen
Change 1 part of lanthanum, 2 parts of praseodymium oxide, 3 parts of europium oxide, N- hexamethylene-N, 40 parts of-diphenyl-para-phenylene diamine, BHT
35 parts, 30 parts of stearic acid, 70 parts of acetone, by above-mentioned raw materials using cohesion coprecipitation react 1.5 hours, by filtering, washing
Wash, be drying to obtain.
Embodiment 2
A kind of damping noise reduction automobile brake pincers use seal quality of rubber materials, are made up in parts by weight of following component：Butyronitrile rubber
95 parts of glue, 1.3 parts of silicon nitride, 9 parts of cellulose acetate, 0.6 part of graphite, 4 parts of sodium molybdate, 11 parts of tert-butyl group alcohol, phthalic acid
0.5 part of dihexyl, 0.25 part of sulphur, 8 parts of inorganic filler, 0.15 part of vulcanization accelerator, 0.2 part of age resistor；
Its preparation method is：Nitrile rubber is put into plastics processing mill and plastified, plasticization temperature is 215 DEG C, entirely reaches molten condition
Afterwards, 1.5 hours are incubated, add silicon nitride, cellulose acetate, graphite, tert-butyl group alcohol, mechanical agitation, continue to plasticate at 320 DEG C
Obtain modified nitrile rubber within 4 hours, on this basis, sulphur, inorganic filler, vulcanization accelerator are added, in mill
It is kneaded uniformly, melting temperature is 130 DEG C, and residual components are added after cooling and are kneaded on open kneading machine, is produced described
Quality of rubber materials.
As further improvement of these options, described inorganic filler according to mass percent meter contain it is following into
Point：Carbon black, which accounts for 32%, montmorillonite and accounts for 23%, kaolin and account for 20%, calcium carbonate, accounts for 8%, remaining as talcum powder.
As further improvement of these options, described vulcanization accelerator according to mass percent meter contain it is following into
Point：Dibenzothiazyl disulfide, which accounts for 30%, basic carbonate calcium and accounts for 18%, lead oxide and account for 12%, calcium oxide and account for 8%, magnesia, to be accounted for 8%, is surplus
Remaining is zinc oxide.
As further improvement of these options, described age resistor is made up of following raw material in parts by weight：Oxygen
1.5 parts of lanthanum of change, 2.5 parts of praseodymium oxide, 3.5 parts of europium oxide, N- hexamethylene-N, 45 parts of-diphenyl-para-phenylene diamine, 2,6- di-t-butyls-
40 parts of 4- cresols, 35 parts of stearic acid, 75 parts of acetone, above-mentioned raw materials are reacted 1.8 hours using cohesion coprecipitation, passed through
Filter, wash, be drying to obtain.
Embodiment 3
A kind of damping noise reduction automobile brake pincers use seal quality of rubber materials, are made up in parts by weight of following component：Butyronitrile rubber
100 parts of glue, 1.5 parts of silicon nitride, 10 parts of cellulose acetate, 0.8 part of graphite, 5 parts of sodium molybdate, 12 parts of tert-butyl group alcohol, O-phthalic
Sour 0.6 part of dihexyl, 0.3 part of sulphur, 9 parts of inorganic filler, 0.2 part of vulcanization accelerator, 0.3 part of age resistor；
Its preparation method is：Nitrile rubber is put into plastics processing mill and plastified, plasticization temperature is 230 DEG C, entirely reaches molten condition
Afterwards, 2 hours are incubated, add silicon nitride, cellulose acetate, graphite, tert-butyl group alcohol, mechanical agitation continues to plasticate 5 at 350 DEG C
Hour obtains modified nitrile rubber, on this basis, adds sulphur, inorganic filler, vulcanization accelerator, is mixed in mill
Refining is uniform, and melting temperature is 150 DEG C, and residual components are added after cooling and are kneaded on open kneading machine, produce the rubber
Glue material matter.
As further improvement of these options, described inorganic filler according to mass percent meter contain it is following into
Point：Carbon black, which accounts for 35%, montmorillonite and accounts for 25%, kaolin and account for 25%, calcium carbonate, accounts for 10%, remaining as talcum powder.
As further improvement of these options, described vulcanization accelerator according to mass percent meter contain it is following into
Point：Dibenzothiazyl disulfide account for 35%, basic carbonate calcium account for 20%, lead oxide account for 15%, calcium oxide account for 10%, magnesia account for 10%,
Remaining as zinc oxide.
As further improvement of these options, described age resistor is made up of following raw material in parts by weight：Oxygen
Change 2 parts of lanthanum, 3 parts of praseodymium oxide, 4 parts of europium oxide, N- hexamethylene-N, 50 parts of-diphenyl-para-phenylene diamine, BHT
45 parts, 40 parts of stearic acid, 80 parts of acetone, by above-mentioned raw materials using cohesion coprecipitation react 2.0 hours, by filtering, washing
Wash, be drying to obtain.
Comparative example 1
With differing only in for embodiment 1, silicon nitride, cellulose acetate, graphite, tert-butyl group alcohol are omitted in raw material, omits butyl
The modification procedure of rubber, remaining is consistent.
Comparative example 2
With differing only in for embodiment 2, the inorganic filler used is only carbon black and montmorillonite, and remaining is consistent.
Comparative example 3
With differing only in for embodiment 3, described age resistor is N- hexamethylene-N ,-diphenyl-para-phenylene diamine, 2,6-, bis- tertiary fourths
Base -4- cresols is according to 3：5 scalemic thereof, remaining is consistent.
Contrast experiment
Seal quality of rubber materials is used using embodiment 1-3 and comparative example 1-3 method processing and fabricating automobile brake pincers respectively, with existing
Some nitrile rubbers detect as control to material capability, result are recorded as shown in the table：
| Project | Tensile strength（MPa） | Elongation at break（%） | Acker dragon abrasion loss（cm3/1.6Km） | Volume change（%） | Damping noise reduction rate（%） |
| Embodiment 1 | 64 | 560 | 0.03 | 0.5 | 48 |
| Embodiment 2 | 68 | 568 | 0.02 | 0.3 | 52 |
| Embodiment 3 | 66 | 564 | 0.02 | 0.4 | 49 |
| Comparative example 1 | 28 | 350 | 0.35 | 1.5 | 4.2 |
| Comparative example 2 | 42 | 380 | 0.20 | 1.0 | 5.0 |
| Comparative example 3 | 35 | 320 | 0.30 | 1.2 | 4.5 |
| Control group | 33 | 340 | 0.25 | 1.1 | Control |
（The examination criteria of the tensile strength is GB/T 528, and the standard of elongation at break is GB/T 528, Acker dragon abrasion loss
Examination criteria be GB/T 1689, volume change determines after being heated in 68 hours distilled water, examination criteria GB/T
1690）
As can be seen here：The present invention is modified to nitrile rubber, improves self-lubricating property, is added fibre composition, is improved rubber
Bearing capacity and physical and mechanical property, damping noise reduction effect are fabulous.
Claims (4)
1. a kind of damping noise reduction automobile brake pincers use seal quality of rubber materials, it is characterised in that in parts by weight by below into
Divide and be made：Nitrile rubber 90-100 parts, silicon nitride 1.2-1.5 parts, cellulose acetate 8-10 parts, graphite 0.5-0.8 parts, sodium molybdate
3-5 parts, tert-butyl group alcohol 10-12 parts, DHP 0.4-0.6 parts, sulphur 0.2-0.3 parts, inorganic filler 7-9 parts,
Vulcanization accelerator 0.1-0.2 parts, age resistor 0.1-0.3 parts；
Its preparation method is：Nitrile rubber is put into plastics processing mill and plastified, plasticization temperature is 200-230 DEG C, entirely reaches melting
After state, 1-2 hours are incubated, add silicon nitride, cellulose acetate, graphite, tert-butyl group alcohol, mechanical agitation, at 300-350 DEG C
3-5 hours of continuing to plasticate obtain modified nitrile rubber, on this basis, add sulphur, inorganic filler, vulcanization accelerator,
It is kneaded in mill uniformly, melting temperature is 120-150 DEG C, and residual components are added after cooling and are carried out on open kneading machine
It is kneaded, produces the quality of rubber materials.
2. a kind of damping noise reduction automobile brake pincers use seal quality of rubber materials as claimed in claim 1, it is characterised in that
Described inorganic filler contains following component according to mass percent meter：Carbon black accounts for 30-35%, montmorillonite accounts for 20-25%, height
Ridge soil accounts for 15-25%, calcium carbonate accounts for 5-10%, remaining as talcum powder.
3. a kind of damping noise reduction automobile brake pincers use seal quality of rubber materials as claimed in claim 1, it is characterised in that
Described vulcanization accelerator contains following component according to mass percent meter：Dibenzothiazyl disulfide accounts for 25-35%, alkali
Formula calcium carbonate accounts for 15-20%, lead oxide accounts for 10-15%, calcium oxide accounts for 5-10%, magnesia accounts for 5-10%, remaining as zinc oxide.
4. a kind of damping noise reduction automobile brake pincers use seal quality of rubber materials as claimed in claim 1, it is characterised in that
Described age resistor is made up of following raw material in parts by weight：Lanthana 1-2 parts, praseodymium oxide 2-3 parts, europium oxide 3-4
Part, N- hexamethylene-N ,-diphenyl-para-phenylene diamine 40-50 part, BHT 35-45 parts, stearic acid 30-40 parts,
Acetone 70-80 parts, by above-mentioned raw materials using cohesion coprecipitation reaction 1.5-2.0 hours, by filtering, washing, dry i.e.
.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710739085.9A CN107383478A (en) | 2017-08-25 | 2017-08-25 | A kind of damping noise reduction automobile brake pincers use seal quality of rubber materials |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710739085.9A CN107383478A (en) | 2017-08-25 | 2017-08-25 | A kind of damping noise reduction automobile brake pincers use seal quality of rubber materials |
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| CN201710739085.9A Pending CN107383478A (en) | 2017-08-25 | 2017-08-25 | A kind of damping noise reduction automobile brake pincers use seal quality of rubber materials |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107474400A (en) * | 2017-07-31 | 2017-12-15 | 威固技术（安徽）有限公司 | One kind improves auto NVH performance self-lubricating rubber hanger and preparation method thereof |
| CN111322402A (en) * | 2018-02-09 | 2020-06-23 | 乐清市华尊电气有限公司 | Sealing element of motorcycle brake caliper |
| CN111363213A (en) * | 2020-04-27 | 2020-07-03 | 宁国市格斯特密封件有限公司 | Preparation method of high-strength brake caliper sealing element |
-
2017
- 2017-08-25 CN CN201710739085.9A patent/CN107383478A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107474400A (en) * | 2017-07-31 | 2017-12-15 | 威固技术（安徽）有限公司 | One kind improves auto NVH performance self-lubricating rubber hanger and preparation method thereof |
| CN107474400B (en) * | 2017-07-31 | 2020-09-04 | 威固技术（安徽）有限公司 | Self-lubricating rubber lifting lug for improving NVH (noise, vibration and harshness) performance of automobile and preparation method thereof |
| CN111322402A (en) * | 2018-02-09 | 2020-06-23 | 乐清市华尊电气有限公司 | Sealing element of motorcycle brake caliper |
| CN111322402B (en) * | 2018-02-09 | 2021-09-21 | 乐清市泰博恒电子科技有限公司 | Sealing element of motorcycle brake caliper |
| CN111363213A (en) * | 2020-04-27 | 2020-07-03 | 宁国市格斯特密封件有限公司 | Preparation method of high-strength brake caliper sealing element |
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20171124 |
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