China's utilization of waste rubber is extremely critical

China is the world's largest rubber consuming country, the main rubber production in the world; rubber consumption in 2004 more than 3,400,000 tons, 3 years in a row in retaining its position in the world. However, China's rubber is also a resource-poor countries, only the resources of the world's total of nearly 10% each year gap more than 50% of imports of natural rubber every year to be 1,200,000 tons, 600,000 tons Synthetic. China is the world's largest volume of waste rubber occurred in one of the countries that produce rubber used in 2004 was about 2,720,000 tons, mainly of discarded tires, some more than 100,000,000 article. This shows China's use of scrap rubber is extremely critical.

At present, the waste rubber resource utilization about 65% (not including renovation of tires), and developed more than 80% utilization rate still lags behind in comparison. At present, China's rubber waste comprehensive utilization of resources is the main way to the production of renewable sources of rubber and rubber powder, reclaimed rubber production in the world. And abroad in addition to the use of scrap rubber tires renovation, the powder is mainly used in manufacturing building materials, as well as the use of heat of combustion. A certain period of time, renewable plastic powder and comprehensive utilization of waste rubber in China is still the dominant product.

Renovation of old tires tire is the most economical way to use. General radial load in normal use conditions, the rate doubled to 80 percent in the second, doubled the rate of 60% over the three rate of 40%. As the pre-sulfide over fetal development, a tire up on the mileage of close to or exceed the new milestone in the birth, along with two and three turned up, heavy-duty radial tire will increase the mileage of an integrated 1 or more times, a child can be the equivalent of 2 , Saving resources such as rubber, at the same time reduce the amount of tires occurred. However, China's tire renovation of the new tire production capacity accounts for only 4%, and 10% for the developed countries in general, especially the renovation of the high proportion of the renovation of the radial tire, way behind the developed countries.

China's tires caused by the renovation of the main reasons for the low rate of: overload damage to the tire carcass, resulting in lower rates of renovation; bad driving habits, resulting in turn reduce the source of fetal birth; part of the new tire carcass quality; really be able to wire the renovation of the radial tire factory is Less.

China's use of rubber waste following major problems: over low birth rate, which is currently the biggest problem with most of the renovation of the tire should be used to make renewable plastic, rubber, and some even used indigenous oil refining or Waste, resulting in serious waste of resources and environmental pollution; powder and unreasonable proportion of reclaimed rubber, rubber powder technology behind the application.

According to the International Rubber Organization predicts that by 2020 China rubber consumption from the current accounting for 22% of the total world consumption upgraded to 29%, reaching more than 800 million tons, occurred in the volume of waste rubber will reach 600 million tons of waste rubber to use Situation is becoming increasingly severe. As a result, China's rubber waste recycling and the need to be more emphasis on the development of science.