Rubber accelerator is usually made of organic compounds, which is an active additive that can accelerate the cross-linking reaction between rubber molecules during the processing of rubber. The flexibility and toughness of rubber is determined by the cross-linking structure between rubber molecules, and the function of rubber accelerator is to accelerate the cross-linking reaction, so that the rubber molecules can form the cross-linking structure faster under the conditions of heating and compression, thus improving the softness and toughness of rubber products.
Rubber Auxiliaries play a role in the mechanism of the following aspects:
1. Reaction with vulcanizing agents to form active species: rubber accelerators usually react with vulcanizing agents to form active thiol species. These reactive species can react with the double bonds in the rubber molecule to form a cross-linked structure. Through the synergistic effect with vulcanizing agents, rubber accelerators can accelerate the vulcanization reaction of rubber and increase the cross-linking density of rubber, thus improving the strength and toughness of Rubber Products.
3. Improve the fluidity of rubber: rubber accelerator can improve the fluidity of rubber, so that the rubber in the processing process is easier to flow and fill the mold. Rubber needs to go through extrusion, calendering, injection molding and other steps in the process, and fluidity is the key factor to ensure that the rubber is evenly distributed in the process and fill the mold. By adjusting the viscosity and hardness of rubber, rubber accelerators make rubber have better fluidity and can better adapt to different processing requirements.
In summary, rubber accelerator can improve the flexibility and toughness of rubber products by accelerating the cross-linking reaction of rubber, promoting the vulcanization reaction, improving the fluidity of rubber and improving the aging resistance of rubber. Rubber accelerator plays a very important role in rubber processing, can improve the quality and performance of rubber products, to meet the different needs of people for Rubber Products.