A kind of high stability rubber exhaust aid and its manufacturing method

Abstract

The invention discloses a high-stability rubber exhaust additive formula and a manufacturing method of an additive. Zinc stearate, polyethylene wax, sulfur compounds, fatty acid and nano calcium carbonate are added to styrene butadiene rubber, additive master batch is prepared, the styrene butadiene rubber has better fluidity at high temperature, and the additive is prepared. The additive is added in the sulfuration process of a rubber product, the styrene butadiene rubber carries the polyethylene wax and the zinc stearate and serves as a macromolecule lubricating agent among rubber molecules to promote movement of the rubber molecules, and therefore air inside the rubber modules in the sulfuration process can be exhausted; meanwhile, the polyethylene wax which has the lubricating effect can be adsorbed in the styrene butadiene rubber and flows along with flow of the styrene butadiene rubber, and therefore the lubrication action on all parts of the rubber product is achieved. The exhaust property of the rubber product in the sulfuration process is improved, meanwhile, the stability of the exhaust property can be improved, and the exhaust property of the rubber product can be improved even under the high-temperature and long-time sulfuration condition.

Description

technical field [0001] The present invention relates to rubber auxiliary agent, more specifically, it relates to a kind of high stability rubber exhaust auxiliary agent and its manufacturing method. Background technique [0002] The process in which rubber macromolecules react chemically with crosslinking agent sulfur under heating to form a three-dimensional network structure. The vulcanized rubber is called vulcanized rubber. Vulcanization is the last process in rubber processing, and it can get shaped rubber products with practical value. In the network structure of rubber, the density of sulfur crosslinks determines the degree of vulcanization of rubber. The latter is judged by the macroscopic physical and mechanical properties of the rubber material or the change of rubber viscosity in the process practice. [0003] During the vulcanization process, there is air in the rubber molecule itself, and the vulcanization is carried out at high temperature. The air inside th...

AI Technical Summary

Problems solved by technology

[0005] However, if the lubricant is used alone, the temperature is high during the vulcanization process, and the lubricant is in a fluid state, which is easy to lose during the vulcanization process. At the same time, under high temperature conditions, the lubricant is easy to decompose and be destroyed, resulting in poor exhaust effect. good

Images