What are primary and secondary accelerators in rubber compounding?

In rubber compounding, primary accelerators and secondary accelerators are two types of accelerators used to speed up the vulcanization process. Here’s a comparison between them: Function: Primary accelerators are responsible for initiating and promoting the initial stages of vulcanization. They provide fast initial curing rates.

How do I choose a rubber accelerator system?

When selecting an accelerator system for the production of a specific rubber product, it is essential to consider the following factors: The accelerator system should demonstrate effectiveness across a broad spectrum of cure temperatures and exhibit compatibility with different types of polymers.

What is the chemical structure of rubber accelerator?

According to the chemical structure of rubber accelerator which is usually divided into eight categories: thiazole, thiuram, sulfenamide, guanidine, dithiocarbamates, aldehyde amine, xanthogenate and thiocarbamides.

What is the role of crosslinking in rubber vulcanization reaction?

It involved in rubber vulcanization reaction, improve the rubber accelerator activity and give full play to its efficiency, reduce promote agent, and can not only improve the curing speed, and also to improve crosslinking degree, influence crosslinking improve vulcanizates physical and mechanical properties.