Compared with butyl rubber, chlorinated butyl rubber has a faster vulcanization speed and can be co-vulcanized with other rubbers. The vulcanized rubber has better heat resistance and smaller compression deformation. It can be used for tire inner tubes, sidewall rubber inner liners, and vulcanization bladders. Wait. Chlorinated butyl reclaimed rubber is processed from waste chlorinated butyl rubber products such as medical butyl rubber stoppers as the main raw material. The main function is to replace chlorinated butyl raw rubber to produce rubber products and reduce the cost of raw materials. It can also be used in tires in a certain proportion. in production.
1. Tire inner liner
In actual production, the inner liner of tubeless tires requires the rubber to have low air permeability, which is conducive to maintaining the pressure of the tire 2YLYY69 for a long time; reducing the penetration and diffusion of oxygen into the carcass, reducing the degradation of rubber in the carcass, and reducing the pressure in the carcass , Improve the performance of the tire; reduce the penetration and diffusion of the moisture of the condensed water to the carcass, the cord and the rubber layer during inflation, thereby reducing the corrosion of the steel cord layer.
Chlorinated butyl reclaimed rubber can be used together with chlorinated butyl rubber in an appropriate ratio to prepare inner tubeless tire inner liners. It is recommended that the vulcanization system be combined with a zinc oxide-based thiazole system to improve the adhesiveness and flexibility of the rubber. High wear-resistant carbon black, calcium carbonate and clay can be used in the inner liner reinforcement filling system containing chlorinated butyl reclaimed rubber. In actual production, chlorinated butyl reclaimed rubber can also be used in combination with chlorinated butyl rubber and natural rubber, and it is more appropriate to use an alkylphenol disulfide vulcanization system.
2. Tire sidewall rubber
Tire sidewall rubber requires good flex fatigue resistance, dynamic and static ozone resistance, and long-term weather resistance, including white sidewalls and black sidewalls. In actual production, chlorinated butyl rubber/ethylene propylene rubber/natural rubber can be used as sidewall rubber for tires to significantly improve the dynamic ozone resistance and flex fatigue resistance of the sidewall rubber.
Chlorinated butyl reclaimed rubber has the basic performance characteristics of chlorinated butyl raw rubber, air permeability, heat resistance, ozone resistance, etc., which can replace part of chlorinated butyl rubber to prepare tire sidewall rubber, effectively reducing raw materials under the premise of ensuring product quality Cost and production energy consumption. When using chlorinated butyl reclaimed rubber to reduce the cost of raw materials for white sidewall rubber, you must choose non-polluting compounding agents, especially rubber oil and antioxidants; use sulfur vulcanization, and use accelerator DM, etc.; use high wear-resistant furnace black, Quickly pressed out of the furnace black, with talcum powder, clay, etc.
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