Rubber comprehensive accelerator and method for preparing same

A technology of accelerators and thiazole accelerators, which is applied in the field of rubber comprehensive accelerators and its preparation, and can solve problems such as poor mechanical properties

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A technology of accelerators and thiazole accelerators, which is applied in the field of rubber comprehensive accelerators and its preparation, and can solve problems such as poor mechanical properties

CN105670130AActive Publication Date: 2016-06-15YONGJIA WEICHENG RUBBER IND & TRADE CO LTD

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preparation example Construction

[0033] The preparation method of the present invention is as follows:

[0034] (1) Take high-activity zinc oxide, post-effect sulfenamide accelerator, thiazole accelerator and ultra-high-speed accelerator successively according to the parts by weight in Table 1, and mix the above raw materials;

[0035] (2) design and take dispersant according to the parts by weight in table 1;

[0036] (3) According to the parts by weight design in Table 1, take respectively EPDM rubber and organic active agent, put it into the kneader and knead for 6-9 minutes and then discharge the material;

[0037] (4) Put the weighed and mixed raw materials in (1) and (2) into the internal mixer, and discharge the material when the temperature of the internal mixer rises to 81-89°C;

[0038] (5) After fully mixing the mixture produced in (3) and (4) to form a plastic object, put it into an open mill for dispersion and cooling;

[0039] (6) Put the material after the cooling treatment into the granulati...

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Abstract

The invention discloses a rubber comprehensive accelerator and a method for preparing the same.The rubber comprehensive accelerator mainly comprises, by weight, 40-75 parts of high-activity zinc oxide, 2-9 parts of after-effectiveness sulfenamide accelerators, 7-15 parts of thiazole accelerators, 10-21 parts of ultrahigh-speed accelerators and 8-19 parts of macromolecular carriers.The rubber comprehensive accelerator and the method have the advantages that different types of additives can be sufficiently mixed with one another by the aid of a step-by-step adding process, accordingly, the rubber comprehensive accelerator is excellent in aging resistance and yellowing resistance, and mechanical properties of rubber products further can be improved.

Description

technical field [0001] The invention relates to the field of rubber industry, more specifically, it relates to a comprehensive rubber accelerator and a preparation method thereof. Background technique [0002] Rubber accelerator is also called rubber vulcanization accelerator. In the rubber vulcanization process, sulfur and rubber are mainly used for vulcanization reaction. However, the crosslinking reaction between sulfur and rubber is very slow. Therefore, adding the rubber vulcanization accelerator to the rubber compound can promote the activation of the vulcanizing agent, thereby accelerating the reaction speed of the vulcanizing agent and rubber molecules, shortening the vulcanization time, reducing the vulcanization reaction temperature, and reducing the amount of vulcanizing agent. [0003] The application of rubber accelerators in the rubber vulcanization process can greatly improve the production efficiency of rubber products, reduce product costs, improve the physi...

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Application Information

Patent Timeline

15 Jun 2016

Publication

CN105670130A

IPC: C08L23/16; C08L23/06; C08L71/02; C08K13/02; C08K5/47; C08K3/22; C08K5/5398; C08K5/053

CPC: C08K3/22; C08K5/053; C08K5/47; C08K5/5398; C08K13/02; C08K2003/2296; C08K2201/014; C08L23/16

Inventors: 章兴武