The rubber damping block is also called cement, and its main function is to reduce noise and reduce vibration in automobiles, and to use more polymer resin materials and rubber materials with good elasticity and good damping properties. Among the reclaimed rubber products, there is a regenerative rubber with good damping performance and can also be used for the production of automotive damping blocks. It is a butyl reclaimed rubber that is known for its air tightness in the rubber field. The use of butyl reclaimed rubber and butyl rubber together to produce damping blocks can not only ensure good performance of the rubber damping block, but also can significantly reduce the raw material cost of the cement and achieve good economic benefits.
Butyl rubber, 20 parts; Butyl reclaimed rubber, 15 parts, polyisobutylene, 60 parts; Light calcium carbonate, 400 mesh, 115 parts; C5 petroleum resin, 30 parts; Carbon black, N550, 15 parts; APAO, 5 parts; Liquid petroleum resin, 10 parts; Total: 270 parts.
When using this formula to produce butyl rubber damping block products, some of the light calcium carbonate can be replaced with clay or talcum powder. They are also good filling materials, but when adding talc powder, it is best to choose products with more than 1000 mesh, talcum powder It can not only reduce the cost of rubber as filling material, but also alleviate the aging phenomenon of butyl damping block; calcium carbonate can improve the wear resistance, tensile strength, elongation at break, and gloss of the surface of rubber damping block; It can increase the tensile strength, definite stress, and resistance to water, wear, and corrosion of butyl damping blocks.
The combination of butyl regenerated rubber and butyl rubber to produce damping blocks can not only reduce the cost of raw materials, but also ensure good "damping" performance of the damping block. The ratio of blending is not constant, and rubber manufacturers can adjust the butyl according to the demand of indicators and the occasion of use. Reclaimed rubber and butyl rubber, some damper blocks with low mechanical performance requirements can also completely use butyl reclaimed rubber, significantly reducing raw material costs. It is worth mentioning that, when using butyl reclaimed rubber and butyl rubber in combination to produce damping blocks, in addition to adjusting the proportion of butyl reclaimed rubber/rubber, it is necessary to adjust the amount of various compounding agents, and then adjust the whole dyke according to the seasons. Based on recycled rubber damping block formula.
When selecting butyl regenerated rubber products, do not choose butyl regenerated rubber that is significantly lower than the market price in order to reduce the cost. The quality of the produced damping blocks cannot be guaranteed; if you choose a butyl regenerated rubber product The quality is not enough, or it can not be used at all, or can only improve the performance of the product by increasing the amount of butyl rubber to meet the needs of butyl rubber damping blocks. However, in any case, it will bring you a huge loss, it is simply not worth the candle. Recycled rubber price is not the only factor to measure the cost of rubber products.
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