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Method for preparing high-strength aging-resistant vulcanized rubber

A vulcanized rubber and anti-aging technology, applied in the field of high-strength anti-aging vulcanized rubber preparation, can solve the problem of increased difficulty for operators

Inactive Publication Date: 2012-11-07
郑华锋
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This puts forward certain requirements on the production process, and the operator's work also increases a certain degree of difficulty.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0012] Example 1: Inject uniformly stirred raw materials into a mold and then vulcanize (usually put in a vulcanizer for vulcanization), the vulcanization temperature is 120°C, the vulcanization pressure is 0.5Mpa, and the vulcanization time is 60 minutes; the raw materials are composed of the following ingredients and parts by weight Composition: zinc oxide 90, polyepichlorohydrin-dimethylamine (antioxidant SP-C) 30, 2-thiol benzothiazole (accelerator MBT) 12, diphenylguanidine (accelerator DPG) 7, two Vulcanized dibenzothiazole (accelerator DM) 19, RX-80 resin (rubber softener RX-80) 19, stearic acid 13, sulfur 22, light calcium carbonate 3500, natural rubber 1400, butadiene rubber 280, cis Butadiene rubber 190, No. 46 engine oil 580.

Embodiment 2

[0013] Example 2: Inject uniformly stirred raw materials into a mold and then vulcanize (usually put in a vulcanizer for vulcanization). The vulcanization temperature is 125°C, the vulcanization pressure is 0.4Mpa, and the vulcanization time is 50 minutes; the raw materials are composed of the following ingredients and parts by weight Composition: zinc oxide 110, polyepichlorohydrin-dimethylamine (anti-aging agent SP-C) 50, 2-thiol benzothiazole (accelerator MBT) 14, diphenylguanidine (accelerator DPG) 9, two Vulcanized dibenzothiazole (accelerator DM) 21, RX-80 resin (rubber softener RX-80) 21, stearic acid 15, sulfur 24, light calcium carbonate 3700, natural rubber 1600, butadiene rubber 320, cis Butadiene rubber 210, No. 46 engine oil 620.

Embodiment 3

[0014] Example 3: Inject uniformly stirred raw materials into a mold and then vulcanize (usually put in a vulcanizer for vulcanization). The vulcanization temperature is 130°C, the vulcanization pressure is 0.3Mpa, and the vulcanization time is 40 minutes; the raw materials are composed of the following ingredients and parts by weight Composition: zinc oxide 100, polyepichlorohydrin-dimethylamine (anti-aging agent SP-C) 40, 2-thiol benzothiazole (accelerator MBT) 13, diphenylguanidine (accelerator DPG) 8, two Dibenzothiazole vulcanized (accelerator DM) 20, RX-80 resin (rubber softener RX-80) 20, stearic acid 14, sulfur 23, light calcium carbonate 3600, natural rubber 1500, butadiene rubber 300, cis Butadiene rubber 200, No. 46 engine oil 600, Salicylic acid 6.

[0015] The rubber products are inspected and the technical indicators are as follows:

[0016] 1. Tensile strength: ≥15Mpa;

[0017] 2. Elongation at break: ≥500%;

[0018] 3. Abrasion: ≤2.0cm3;

[0019] 4. Aging resistance (...

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Abstract

The invention relates to a method for preparing rubber. The technical problem to be solved is that the method is required to have the characteristic of low cost. The technical scheme is that a method for preparing high-strength aging-resistant vulcanized rubber comprises the following steps of: injecting raw materials which are stirred uniformly into a mould and vulcanizing to form the high-strength aging-resistant vulcanized rubber, wherein the vulcanization temperature is 120 to 130 DEG C; the vulcanization pressure is 0.3 to 0.5Mpa; and the vulcanization time is 40 to 60 minutes. The rubber consists of the following components in part by weight: 90 to 110 parts of zinc oxide, 30 to 50 parts of anti-aging agent SP-C, 12 to 14 parts of accelerator MBT, 7 to 9 parts of accelerator DPG, 19 to 21 parts of accelerator DM, 19 to 21 parts of rubber softener RX-80, 13 to 15 parts of stearic acid, 22 to 24 parts of sulfur, 3,500 to 3,700 parts of light calcium carbonate, 1,400 to 1,600 parts of natural rubber, 280 to 320 parts of styrene butadiene rubber, 190 to 210 parts of butadiene rubber, and 580 to 620 parts of machine oil No. 46.

Description

Technical field [0001] The invention relates to a method for preparing rubber products, in particular to a method for preparing high-strength anti-aging vulcanized rubber. Background technique [0002] Rubber products have high elasticity, heat resistance, tensile strength and insolubility in organic solvents only after vulcanization. Therefore, common rubber products (such as rubber shoes) will be vulcanized. At present, rubber products are generally vulcanized by using a rubber vulcanizer. During the production process, the rubber products (with vulcanizing agent added in proportion) are placed in the vulcanization cylinder of the rubber vulcanizer, and the vulcanization process is completed after a period of high temperature treatment. [0003] The vulcanization method of conventional rubber is mainly to incorporate sulfur into natural rubber; generally speaking, the larger the amount of sulfur, the faster the vulcanization speed and the higher the degree of vulcanization that c...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08J3/24B29C35/02C08L7/00C08L9/06C08L9/00C08K13/02C08K3/22C08K5/09C08K3/06C08K3/26
Inventor 郑华锋泮雪英程向明俞林冲泮雪芳
Owner 郑华锋
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