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Butadiene rubber dust cover and preparation method thereof

A technology of cis-butadiene rubber and dust cover, applied in the field of rubber materials, can solve the problems of low tear strength and tensile strength of cis-butadiene rubber, poor processing performance, etc., and achieve good low temperature resistance, dynamic performance, and good mechanical performance. , The effect of good wear resistance

Inactive Publication Date: 2020-04-28
ZHEJIANG SHITAI IND CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The invention provides a butadiene rubber dust cover and a preparation method thereof aiming at the disadvantages of low tear strength and tensile strength and poor processability of butadiene rubber in the prior art

Method used

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  • Butadiene rubber dust cover and preparation method thereof
  • Butadiene rubber dust cover and preparation method thereof
  • Butadiene rubber dust cover and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] A butadiene rubber dust cover, comprising the following raw materials in parts by weight:

[0032]

[0033] The weight ratio of carbon black, nano kaolin and modified calcium sulfate whiskers is 1:1:1.

[0034] Curing agents include combinations of t-butyl peroxybenzoate, sulfur and phenolic resins.

[0035] The weight ratio of tert-butyl peroxybenzoate, sulfur and phenolic resin in the vulcanizing agent is 0.3:0.5:0.2.

[0036] The vulcanization aid is a composition of 0.5 parts of hexamethylene diisocyanate, 0.5 parts of zinc chloride and 1 part of 4,4'-bismaleimide.

[0037] The modified calcium sulfate whisker is calcium sulfate whisker modified by aluminate coupling agent.

[0038] A preparation method for butadiene rubber dust cover, comprising the following steps:

[0039] (1) modifying the nano kaolin and carbon black with a titanate coupling agent to obtain a modified reinforcing agent;

[0040] (2) Butadiene rubber, cellulose acetate resin, nano-zinc ox...

Embodiment 2

[0045] A butadiene rubber dust cover, comprising the following raw materials in parts by weight:

[0046]

[0047]

[0048] The weight ratio of carbon black, nano kaolin and modified calcium sulfate whiskers is 1:1:1.

[0049] Curing agents include combinations of t-butyl peroxybenzoate, sulfur and phenolic resins.

[0050] The weight ratio of tert-butyl peroxybenzoate, sulfur and phenolic resin in the vulcanizing agent is 1:1:1.

[0051] The vulcanization aid is a combination of 3 parts of 2,4-toluene diisocyanate, 3 parts of magnesium chloride and 4 parts of 4,4'-bismaleimide.

[0052] The modified calcium sulfate whisker is a titanate coupling agent modified calcium sulfate whisker.

[0053] A preparation method for butadiene rubber dust cover, comprising the following steps:

[0054] (1) modifying the nano kaolin and carbon black with a titanate coupling agent to obtain a modified reinforcing agent;

[0055] (2) Butadiene rubber, cellulose acetate resin, nano-zin...

Embodiment 3

[0060] A butadiene rubber dust cover, comprising the following raw materials in parts by weight:

[0061]

[0062]

[0063] The weight ratio of carbon black, nano kaolin and modified calcium sulfate whiskers is 1:1:1.

[0064] Curing agents include combinations of t-butyl peroxybenzoate, sulfur and phenolic resins.

[0065] The weight ratio of tert-butyl peroxybenzoate, sulfur and phenolic resin in the vulcanizing agent is 0.6:0.8:0.6.

[0066] The vulcanization aid is a combination of 2 parts of 2,6-toluene diisocyanate, 2 parts of ferric chloride and 2 parts of 4,4'-bismaleimide.

[0067] The modified calcium sulfate whisker is an aluminum-titanium coupling agent modified calcium sulfate whisker.

[0068] A preparation method for butadiene rubber dust cover, comprising the following steps:

[0069] (1) modifying the nano kaolin and carbon black with a titanate coupling agent to obtain a modified reinforcing agent;

[0070] (2) Butadiene rubber, cellulose acetate re...

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Abstract

The invention relates to the technical field of rubber materials, and discloses a butadiene rubber dust cover. The butadiene rubber dust cover comprises the following components: 90-110 parts of butadiene rubber, 30-50 parts of cellulose acetate resin, 6-8 parts of epoxy resin, 15-20 parts of carbon black, 15-20 parts of nano kaolin, 15-20 parts of modified calcium sulfate whiskers, 5-10 parts ofa titanate coupling agent, 1-3 parts of a vulcanizing agent, 2-10 parts of a vulcanizing aid, 5-7 parts of nano zinc oxide, 2-4 parts of stearic acid, 6-8 parts of paraffin and 1-3 parts of an anti-aging agent. The invention also discloses a preparation method thereof. According to the butadiene rubber dust cover prepared by the invention, butadiene rubber is used as a raw material; compared withthe prior art, the dust cover has the advantages that other rubber materials do not need to be doped, the processability of the dust cover is improved through vulcanization of tert-butyl peroxybenzoate, sulfur and phenolic resin under the action of cellulose acetate resin, epoxy resin, carbon black, nano kaolin and modified calcium sulfate whiskers, and the obtained dust cover is good in mechanical property and high in tearing strength.

Description

technical field [0001] The invention relates to the technical field of rubber materials, in particular to a butadiene rubber dust cover and a preparation method thereof. Background technique [0002] In the power unit of a motor vehicle, a dust cover is often used for dust-proof sealing between the joints of the motion transmission. The automobile dust cover has the function of preventing dust, moisture, oil, mud, sand and stones from entering the seal. . Therefore, the dust cover not only needs material compactness, good compressibility and resilience, and small permanent deformation, but also needs good mechanical strength, aging resistance, temperature resistance, corrosion resistance and other properties, and can be used in acid, alkali, oil, etc. Long-term work in medium and other media, and the flexibility combined with the sealing surface. [0003] Most of the existing dust covers are made of natural rubber, which requires higher toughness and strength of the dust c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L9/00C08L1/12C08L63/00C08L61/06C08L91/06C08K13/06C08K9/04C08K7/08C08K3/04C08K3/34C08K3/22C08K5/14C08K3/06
CPCC08K2003/2296C08K2201/011C08L9/00C08L2205/035C08L1/12C08L63/00C08L61/06C08L91/06C08K13/06C08K9/04C08K7/08C08K3/04C08K3/346C08K3/22C08K5/14C08K3/06
Inventor 陈建会陈中敢
Owner ZHEJIANG SHITAI IND CO LTD
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