Major Breakthroughs in Key Technologies for Synthetic Rubber

SCI99

2019-03-07

Major Breakthroughs in Key Technologies for Synthetic Rubber Industrialization

Recently, it was learned from the Petrochemical Research Institute that the “Key Technologies for Synthetic Rubber Industrialization”, which is led by the institute to undertake national key R&D projects, has achieved initial results.

In the core technical fields such as star-type branched butyl/bromobutyl rubber synthesis and double-B tire preparation technology, major technological breakthroughs have been realized. The service life of butyl curing bladder has increased by more than 17% from the original level, and domestic tires have been promoted. The flow resistance and wet skid resistance reached the B-class standard, which will increase the proportion of synthetic rubber materials in tire preparation by more than 15%. It provides a technical solution for the supply side reform and high-quality development of the tire industry and also promoted China’s synthetic rubber and tire industries to reach the world-class advanced level.

Butyl rubber is the most airtight rubber material. Star-type branched butyl rubber/bromobutyl rubber is a rubber type that is urgently needed to improve the life of curing bladder and attenuate the inner liner during the high-end process of China’s tire industry. However, the production technology is difficult, and there are no mature star-type branching technologies and products in China. At the same time, the backwardness of processing technology has caused the domestic tire industry to lag behind foreign countries. Domestically produced tires are two to three grades worse than foreign advanced double-B tires.

In order to reverse the passive situation of the domestic synthetic rubber industry and improve the market competitiveness of China’s tire industry, the Ministry of Science and Technology listed the “Key Technologies for Synthetic Rubber Industrialization” into the national key research and development plan.

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