Butyl rubber has excellent air tightness and water tightness, heat resistance, shock absorption, chemical corrosion resistance, and is widely used in the production of rubber products. However, the production cost of butyl rubber is high, and there are problems such as high cold flow and difficult mixing in the process of use. The butyl reclaimed rubber processed from waste butyl inner tube has the basic performance characteristics of butyl rubber, and can be used with butyl rubber in an appropriate proportion to produce rubber products, so as to improve the performance of rubber processing technology and reduce the cost of rubber production under the premise of ensuring the performance of the products.
1. The advantages of the combination of butyl rubber and butyl reclaimed rubber
(1) Low cost: butyl reclaimed rubber is made of waste rubber products desulfurization and regeneration, the price is 1/3 of the price of butyl rubber, the price fluctuation is very small, the use of butyl reclaimed rubber to replace part of the butyl rubber can effectively reduce the cost of raw materials.
(2) Good processing performance
Compared with butyl rubber, butyl reclaimed rubber has good plasticity, good compatibility with other rubber, and the compounding agent is evenly dispersed, so the mixing difficulty is small. Butyl reclaimed rubber can play a lubricating role, improve the fluidity of rubber, and the rubber material mixed with butyl reclaimed rubber E4LYY111 is easier to produce and compress the film; The expansion and contraction of unvulcanized rubber with reclaimed rubber is much smaller than that of unvulcanized rubber with only new rubber, which is easy to process and the size and shape of the finished product are more stable.
(3) Complementary performance
The properties of butyl rubber are more stable than those of butyl reclaimed rubber, and the mechanical strength, air tightness, water tightness, heat resistance, and chemical resistance of the rubber compound are more stable. Butyl rubber is easy to soften after aging, and the hardness of butyl reclaimed rubber changes little after aging; The combination of butyl rubber and butyl reclaimed rubber to produce rubber products can improve the aging resistance of rubber compounds and prolong the service life. The damping property of butyl reclaimed rubber is combined with the elasticity of butyl rubber, which can significantly reduce the transmission of vibration capacity, which is more important in the production of shock-absorbing rubber products.
2. Common application fields of butyl rubber/butyl reclaimed rubber combined with rubber
(1) Tire industry
Butyl rubber/butyl reclaimed rubber is widely used in tire inner tubes and inner liners, which can not only effectively reduce production costs, but also maintain good air tightness and elasticity of inner tubes, provide excellent air tightness and durability for tire inner liners, and ensure the driving safety of tires. Vulcanized capsules, truck tire linings, etc. can also be processed with butyl rubber/butyl reclaimed rubber and glue.
(2) Sealed shock-absorbing products
Butyl rubber/butyl reclaimed rubber has good air tightness, heat resistance, chemical resistance, etc., and can be used to produce rubber seals, sealing rings, sealing strips, etc., and are widely used in sealing systems in automobile, machinery, chemical and other industries. Butyl rubber/butyl reclaimed rubber has certain shock absorption and damping properties, which can be used to produce shock absorbing pads for suspension systems, vibration isolation blocks for engines, etc., effectively absorbing vibration energy and reducing the transmission of vibration and noise.
(3) Building waterproofing materials
The building waterproofing membrane and waterproof tape produced by the combination of butyl rubber and butyl reclaimed rubber have good low temperature flexibility, tensile strength and elongation, and the processing performance of the combined rubber is good, which is conducive to production and construction; The finished waterproofing membrane can effectively adapt to the deformation of the building, prevent water penetration, ensure the quality and service life of the building, and is widely used in the waterproofing of roofs and basements, the waterproofing treatment of subway tunnel construction gaps, etc.
Butyl rubber/butyl reclaimed rubber can also be used in various anti-corrosion products and heat-resistant conveyor belt processing. When using butyl rubber/butyl reclaimed rubber to produce different varieties of rubber products, the appropriate vulcanization system can be selected according to the specific needs of rubber products, such as the rubber material vulcanized by sulfur vulcanization system has the characteristics of high tensile strength, fatigue resistance and tear resistance, and the rubber material vulcanized by resin vulcanization system has excellent heat resistance, flexural resistance and chemical stability; In the follow-up, Xiaobian will continue to share with you the formula design skills of butyl rubber/butyl reclaimed rubber and glue production products.
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