Kevlar tires for a breakthrough

"Five-Year Plan" key scientific and technological projects - green Kevlar material used in tire production technology development, South China University of Technology, one million Department of Science and Technology Development Corporation and the South China Rubber Tire Co., Ltd., birch good tire, such as the Joint Co., Ltd. Research has made an important breakthrough in the formation and industrialization of production capacity, promote the use of a new stage.

The project's use of Shandong Bolet processing of aramid cord impregnated by the basic properties of materials research, focused on solving the Kevlar material of rubber and adhesive technology, Kevlar special processing technology and low rolling resistance rubber with the overall design and other issues For the tire carcass and belt, and to develop and produce a series of high-performance car radial tire 65,60,40. Fortunately, development and production quantities of tires than the average quality standard radial light 12.4%, 12% drop in rolling resistance, high-speed performance to reach 240 km / h over the durability of more than 180 hours, far better than national standards. According to calculation, the average test fetal material cost increases of about 35 yuan /, but because of the Kevlar material brought about by high-performance tires and long service life, in particular to highlight the effect of fuel-efficient, cost-effective integrated so that it is far more than ordinary meridian Fetus.

At present, the international Kevlar material prices are steady downward trend in prices in the near future about 200 yuan / kg. Kevlar material for domestic development and has achieved preliminary results, high temperature, "1313" Kevlar material has industrial scale, the tire industry in the use of "1414" Kevlar material made important progress in the development, in particular the use of Kevlar tire cord production Technology has Shenma Group and Shandong Bolet companies to form the industrialization of the scale of China's tire industry for the application of Kevlar cord provides an important basis for the conditions.

It is understood that the current radial tire with Kevlar and steel reinforcing materials, polyester, nylon and so on, have a high-intensity, the deformation of small, low-heat shrinkable, high heat and little creep, and other advantages, the strength of steel wire is 5 ~ 6 times the modulus of the wire is 2 times the relative density of steel is only 1 / 5, the decomposition temperature of 560 ℃, with both synthetic flexibility, with the rigid wire. The world's leading tire manufacturers are concerned about the Kevlar in the car tire, in particular the use of Kevlar cord as a reinforcing material production of ultra-light, ultra-thin and low radial tire rolling resistance.

Kevlar material as a high-performance rubber matrix material have been a number of national five-year plan of scientific and technological research.