Process for improving chloroprene mixed rubber scorching performances

Abstract

The invention discloses a process for improving chloroprene mixed rubber scorching performances. The mixed rubber comprises, by weight, a masterbatch ingredient comprising 70-100 parts of chloroprene rubber, 1-3 parts of a promoter, 0.5-2 parts of stearic acid, 1-3 parts of protection wax, 1-3.5 parts of an antiager OCT, 20-80 parts of fast extruding furnace black N550, 20-70 parts of semi-reinforcing furnace black N774 and 10-50 parts of dioctyl sebacate, and an auxiliary material ingredient comprising 1-3 parts of an antiager 3100, 1-2.5 parts of an antiager 4010NA and 2-10 parts of a vulcanizing agent. The mixing process comprises 1, initial stage mixing and 2, tail stage auxiliary material addition and mixing. Compared with the existing mixing process, the process provided by the invention improves mixing processes, changes a material use order by prior use of a part of the promoter and later use of all vulcanizing agent and a part of antiagers in masterbatch preparation to improve mixed rubber scorching time, and guarantees a mixed rubber transport and storage period and processing safety.

Description

technical field [0001] The invention belongs to the technical field of rubber mixing, and in particular relates to a process method for improving the scorch performance of neoprene rubber mixing rubber. Background technique [0002] At present, many rubber and plastic companies around the world are carrying out the takeaway compound business. At the same time, many companies entrust other rubber and plastic companies to process services because they cannot meet the production capacity requirements. The prolongation of the release time will cause self-scorch and lead to the overdue scrapping of the compounded rubber, which will bring huge economic losses to these enterprises. Therefore, it is imperative to develop a process to improve the scorch performance of neoprene compounded rubber. . Contents of the invention [0003] The purpose of the present invention is to develop a new rubber mixing process. The innovation of this process is to add the components that prolong th...

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Problems solved by technology

[0002] At present, many rubber and plastic companies around the world are carrying out the takeaway compound business. At the same time, many companies entrust other rubber and plastic companies to process services because they cannot meet the production capacity requirements. The prolongation of the release time will cause self-scorch and lead to the overdue scrapping of the compounded rubber, which will bring huge economic losses to these enterprises. Therefore, it is imperative to develop a process to improve the scorch performance of neoprene compounded rubber.

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