Millions of tons of scrap rubber tires are produced in the world each year, accounting for 70% of the total amount of scrap rubber products. The discarded tires can not naturally degrade for a long time and a large number of discarded rubber tires are more difficult to form than plastic (white) Black pollution handled. The huge number of waste tires how to effectively deal with the issue has become the general concern of society. To this end, in addition to the mountains of waste rubber products as fuel burning, since 1910, scientists from various countries have studied more effective recycling of waste rubber technology, and now now about 70% of waste tires processed in tire reclaimed rubber , To replace rubber production of rubber products.
Tire reclaimed rubber refers to the scrap vulcanized rubber after crushing, heating, mechanical processing and other physical and chemical processes, from the elastic state in a plastic and adhesive, can be vulcanized rubber. The essence of the regeneration process of tire reclaimed rubber is that under the combined effect of heat, oxygen, mechanical action and chemical and physical effects of regenerant, the vulcanized rubber network is destroyed and degraded. The fracture position has both the cross-linking and cross-linking Between the macromolecular bond, processed in a value of the tire reclaimed rubber.
Waste tires will lose their value after being recycled, waiting for the natural degradation is impossible, blind accumulation will only increase the environmental burden, so with the continuous development of reclaimed rubber technology, a large number of waste tires began to be used for tire reclaimed rubber Production, on the one hand can replace natural rubber, ease the shortage of rubber resources; the other hand, the recycling of used tires to solve the problem of waste rubber pollution of the environment.
Originally tire reclaimed rubber loss of use value can only be recycled, the emergence of reclaimed rubber technology has the tire part of the value of the use of processed in reclaimed rubber for a variety of rubber products in the production, to ensure that the rubber products to meet the indicators under the premise All or part of the use of tire reclaimed rubber, equal to scrap rubber tires re-shiny in the rubber industry fever.
At present, domestic tire processing methods have been retreaded tires, processed in recycled rubber and renewable rubber powder, of which the main processing of renewable rubber. China is a country with relative shortage of raw rubber resources. China needs to import about 50% of its reclaimed rubber consumption every year. Looking for sources of rubber raw materials and substitute materials is a task that China is struggling to achieve. Therefore, earnestly and properly disposing of discarded tires has extremely profound positive and practical significance for making full use of renewable resources, getting rid of the scarcity of natural resources, reducing environmental pollution and improving people's living environment.
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