Natural rubber vulcanizate has the characteristics of high mechanical strength, good elasticity and resilience, high abrasion, flex resistance, etc., and is an indispensable raw material for the preparation of truck tire tread rubber. When producing truck tire tread rubber with natural rubber as the main raw material, adding styrene butadiene rubber and butadiene rubber in an appropriate amount can further improve the comprehensive physical properties of the tread rubber, especially heat resistance, wear resistance, cold resistance, etc.; use reclaimed rubber in an appropriate amount It can effectively reduce the cost of raw materials and improve the process performance. So which reclaimed rubber can be used in the production of truck tire tread rubber?
1. Reclaimed tire rubber
The main raw material of tire reclaimed rubber is waste tire rubber powder. my country produces a large amount of waste tires every year. Recycling low-cost tire reclaimed rubber into new tire production is one of the main ways to dispose of waste tires. In the application process, truck tire rubber puts strict requirements on the wear resistance, aging resistance and adhesion of the rubber compound. When using tire reclaimed rubber 2YLYY67 to reduce the cost of raw material for heavy-duty tire tread rubber, it is recommended to use tire tread reclaimed rubber with better wear resistance and tear resistance.
In actual production, 5-20 parts of tire tread reclaimed rubber, fine tire reclaimed rubber, etc. can be added to the tire tread rubber formula with natural rubber as the main raw material, which can effectively reduce the cost of raw materials under the premise of ensuring product quality. At present, more heavy-duty tire tread rubber manufacturers will use natural rubber, styrene butadiene rubber, butadiene rubber and tire reclaimed rubber together.
2. Latex reclaimed rubber
Latex reclaimed rubber is processed from waste natural rubber, waste natural rubber and latex products, and is an ideal raw material to replace high-priced natural rubber. The effective rubber hydrocarbon content of high-quality reclaimed latex rubber can reach more than 75%, which can directly replace part of natural rubber and reduce the raw material cost of natural rubber tread rubber. In actual production, the price of black latex reclaimed rubber with the same index is lower. It is recommended to use black latex reclaimed rubber in the tire tread rubber to reduce more raw material costs.
3. Butyl reclaimed rubber
Butyl reclaimed rubber has the characteristics of good air tightness, heat resistance, chemical resistance, etc. It is an ideal raw material to replace part of butyl raw rubber to reduce the production cost of butyl inner tube. When preparing truck tire tread rubber with natural rubber as the main raw material, using butyl reclaimed rubber in an appropriate amount can not only reduce the cost of raw materials, but also further improve the aging resistance of the tire tread rubber and prolong the service life of the product. In actual production, in 100 parts of raw rubber (natural rubber/butadiene rubber or natural rubber/styrene butadiene rubber/butadiene rubber total mass parts) can be mixed with 10-20 parts of butyl reclaimed rubber.
When using natural rubber and natural rubber/synthetic rubber to produce truck tire tread rubber, you can also add tire rubber powder, activated rubber powder, etc., to further reduce the cost of raw materials. Later editors will continue to share with you to reduce truck tire tread rubber Other raw materials and application skills of raw material cost.
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