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A kind of acrylate rubber composite material

A composite material and acrylate technology, which is applied in the field of rubber composite materials, can solve the problems of poor cold resistance and solvent resistance, and are far from each other, and achieve the effects of good economic benefits, good process performance and broad market application prospects.

Active Publication Date: 2015-09-02
ZHEJIANG GUNAI RUBBER & PLASTIC SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Acrylate rubber (ACM) is a kind of special rubber prepared by copolymerization with acrylate as the main monomer; Olefin rubber is stable, especially has good heat and oxygen aging resistance, and its service temperature can be 30-60°C higher than that of nitrile rubber. There is no obvious change in aging in the air for several years; the polar ester side chain of acrylate rubber makes its solubility parameter far from that of various oils, especially mineral oil, so it shows good oil resistance; the disadvantages of acrylate rubber It is poor in cold resistance, water resistance and solvent resistance

Method used

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  • A kind of acrylate rubber composite material
  • A kind of acrylate rubber composite material
  • A kind of acrylate rubber composite material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] Example 1 Black acrylate rubber composite material used for automotive generator bearing seals

[0043] (1) Weighing: 300 grams of acrylate rubber, 4.5 grams of stearic acid, 6 grams of 4,4′-bis(α,α-dimethylbenzyl) diphenylamine, 60 grams of white carbon black, 54 grams of clay, 60 grams of carbon black, 7.5 grams of γ-mercaptopropyltrimethylsilane, 1.5 grams of triethanolamine, 6 grams of 3-(3,4-dichlorophenyl)-1,1-dimethylurea, sodium stearate 9 grams;

[0044](2) Mixing: keep the roller temperature of XK-160 open mill at 40-70°C, and mix the above-mentioned acrylate rubber, stearic acid, 4,4′-bis(α,α-dimethylbenzyl)diphenylamine in sequence , silica, clay, carbon black, γ-mercaptopropyltrimethylsilane, triethanolamine, 3-(3,4-dichlorophenyl)-1,1-dimethylurea, sodium stearate In the open mill, after the feeding is finished, the left and right cutters are cut 4 times and thinly passed 6 times, and then the film is removed; after the rubber material is parked for 24 h...

Embodiment 2

[0048] Example 2 Black acrylic rubber composite material used for automotive generator bearing seals

[0049] (1) Weighing: 300 grams of acrylate rubber, 4.5 grams of stearic acid, 6 grams of 4,4′-bis(α,α-dimethylbenzyl) diphenylamine, 45 grams of white carbon black, and 90 grams of talcum powder , 45 grams of carbon black, 9 grams of γ-mercaptopropyltrimethylsilane, 1.5 grams of triethanolamine, 6.6 grams of 3-(3,4-dichlorophenyl)-1,1-dimethylurea, stearic acid Sodium 9 grams;

[0050] (2) The operation of mixing and performance testing is the same as in Example 1, and the results are shown in Table 2.

[0051] Table 2 Properties of acrylate rubber composites

[0052]

Embodiment 3

[0053] Example 3 Black acrylic rubber composite material used for automotive generator bearing seals

[0054] (1) Weighing: 300 grams of acrylate rubber, 4.5 grams of stearic acid, 6 grams of 4,4′-bis(α,α-dimethylbenzyl) diphenylamine, 45 grams of white carbon black, 75 grams of diatomaceous earth grams, carbon black 90 grams, γ-mercaptopropyltrimethylsilane 6 grams, triethanolamine 1.5 grams, 3-(3,4-dichlorophenyl)-1,1-dimethylurea 6 grams, stearin Sodium acid 7.8 grams;

[0055] (2) The operation of mixing and performance testing is the same as in Example 1, and the results are shown in Table 3.

[0056] Table 3 Properties of acrylate rubber composites

[0057]

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Abstract

The invention discloses an acrylate rubber composite material used for bearing sealing of automobile generators. The composite material is composed of the following raw materials by mass ratio: 100 parts of acrylate rubber, 1-2 parts of stearic acid, 1.5-3 parts of 4,4'-Bis(alpha, alpha-dimethylbenzyl)diphenylamine, 30-100 parts of silicate, 0-40 parts of a toner, 2-4 parts of a coupling agent and 4-8 parts of a vulcanization accelerator. The acrylate rubber composite material used for the bearing sealing of the automobile generators has performances of oil resistance and good processing property of traditional acrylate rubber, and further solves problem of non-water resistance of the traditional acrylate rubber, has a price being 10 % higher than that of the traditional acrylate rubber, can be used for the bearing sealing of the automobile generators as well as used in occasions needed to be oil-resistant and water-resistant under a required temperature of 150-180 DEG C, and is good in economic benefit and wide in market application prospect.

Description

(1) Technical field [0001] The invention relates to a rubber composite material, in particular to a double-crosslinked acrylate rubber as the main carrier, which is prepared by adding different rubber additives, rubber fillers, and vulcanization accelerators on an internal mixer or an open mill. Acrylate rubber material for automotive alternator bearing seals. (2) Background technology [0002] Acrylate rubber (ACM) is a kind of special rubber prepared by copolymerization with acrylate as the main monomer; Olefin rubber is stable, especially good in heat and oxygen aging resistance. It can be used at a temperature 30-60°C higher than that of nitrile rubber. There is no obvious change in aging for several years in the air; the polar ester side chain of acrylate rubber makes its solubility parameter far from that of various oils, especially mineral oil, so it shows good oil resistance; the disadvantages of acrylate rubber It is poor in cold resistance, water resistance and s...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L33/04C08K13/02C08K5/09C08K5/18C08K3/34C08K3/36C08K5/548C08K5/17C08K5/205C08K5/21C08K5/098
Inventor 施明烁魏鹏胡乃达
Owner ZHEJIANG GUNAI RUBBER & PLASTIC SCI & TECH
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