Millions of tons of waste rubber are produced all over the world every year, and the amount is so huge that how to deal with it effectively has become a common concern of the whole society. Therefore, in addition to burning mountains of waste rubber products as fuel, from 19 10, scientists all over the world are studying more effective recycling technology of waste rubber. Reclaimed rubber refers to the physical and chemical processes such as crushing, heating and mechanical treatment of waste vulcanized rubber, which makes it change from elastic state to vulcanizable plastic and viscous rubber. The essence of the regeneration process is that under the comprehensive action of heat, oxygen, mechanical action and chemical and physical action of the regenerant, the vulcanized rubber network is destroyed and degraded, and there are both cross-linked bonds and macromolecular bonds between cross-linked bonds at the fracture.
Rubber regeneration methods can be roughly divided into two categories: physical regeneration and chemical regeneration.
In addition, waste tires have a new use, and the tire wall controls desertification.
The invention patent "tire wall" applied by Cui Yuntai, a citizen of Jilin, is a sample of using waste tires to control desertification.
The "tire wall" takes waste tires as raw materials, punches holes around the waste tires, punches water holes with hollow plastic pipes, and places nutrient soil in the grooves in the tires. After planting plants in the middle of the tire, the roots will spread in all directions, form roots in the tire, and then spread out from the holes in the tire. Water can also be completely "locked" in the groove of the tire, which is not easy to lose and allows plants to fully absorb nutrients. After multiple fetal walls are connected together, water can blend with each other, which is beneficial to the growth of plants.