Butyl reclaimed rubber has good air tightness, heat resistance, chemical resistance, aging resistance, shock absorption, and insulation. It can replace butyl rubber to produce high-quality rubber products, and effectively reduce the cost of raw materials on the premise of ensuring product quality. In actual production, butyl reclaimed rubber can not only be used as the main rubber material, but also can be filled in the form of filler; different varieties and different use occasions have different physical properties of rubber, and the application method and addition ratio of butyl reclaimed rubber are different. The actual needs are reasonably determined.
1. Used alone as a rubber material
Butyl reclaimed rubber retains the basic performance characteristics of butyl rubber, and some butyl rubber products can completely use butyl reclaimed rubber instead of butyl raw rubber, effectively reducing the cost of raw materials. Compared with butyl rubber, butyl reclaimed rubber 2ELYY218 has better mixing effect during mixing and faster vulcanization during vulcanization, which can improve the processing efficiency of butyl rubber products to a certain extent. When producing high-quality rubber products from butyl reclaimed rubber, it is necessary to adjust the production formula and production process appropriately.
2. Used as a rubber material and raw rubber
The use of butyl reclaimed rubber as a rubber material in combination with raw rubber is the main way in the production of high-quality rubber products.
(1) Combined use with butyl rubber: Studies have shown that the addition of butyl reclaimed rubber to butyl rubber can significantly improve the problems of difficult rubber cutting, easy sticking to rollers, and slow feeding of mixing ingredients during butyl rubber processing. When butyl reclaimed rubber and butyl rubber are used together to produce rubber products, the addition ratio of butyl reclaimed rubber needs to be determined according to the actual demand of rubber products, formula vulcanization system and other factors.
When sulfur vulcanization is used for high-quality butyl rubber products, the dosage of butyl reclaimed rubber is controlled 30-60 parts; when resin vulcanization is used, the dosage of butyl reclaimed rubber is controlled within 30 parts; the overall performance of the finished product is better and the service life is longer. long.
(2) Combined use with other rubbers: The blending effect of butyl reclaimed rubber and other rubbers is better, and it can be combined with other rubbers, including ethylene-propylene rubber, natural rubber, styrene-butadiene rubber, etc. Butyl reclaimed rubber and natural rubber are used together, the vulcanizate has good air tightness, weather resistance, flex resistance, and good physical and mechanical properties. The combination of butyl reclaimed rubber and ethylene-propylene rubber can obviously improve the problem of ethylene-propylene rubber products becoming hard and brittle after aging, delaying the aging time and prolonging the service life.
3. Filled as rubber filler
Butyl reclaimed rubber can also be filled in the form of fillers in the production of high-quality rubber products. When butyl reclaimed rubber is used as filler, when its dosage in the sulfur vulcanization system is controlled at 40-60 parts, the comprehensive performance of the vulcanizate is better; in the resin vulcanization system, the dosage of butyl reclaimed rubber is generally controlled at 40-80 parts, and rubber products The finished product has better performance and longer service life.
Butyl rubber products are found in all walks of life, including tire inner tubes, tubeless tire innerliners, vulcanized bladders, water tires, medical bottle stoppers, etc. They are also widely used in hoses, tapes, waterproof membranes, shock absorption materials, and anti-corrosion materials. application. With the increase in the amount of butyl rubber products, in-depth research and development of the regeneration and utilization of waste butyl vulcanizate is of great significance. It can not only deal with waste butyl rubber products more reasonably, but also produce and process the butyl reclaimed rubber that can be recycled. It can be used in rubber products to effectively reduce costs and improve economic benefits.
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