The reclaimed chlorinated butyl rubber is generally processed from discarded pharmaceutical butyl bottle stopper. It has the basic performance characteristics of chlorinated butyl rubber, good air tightness, heat resistance, flexure resistance, and chemical stability. It is an ideal raw material to replace chlorinated butyl rubber to produce various rubber products and reduce costs. In actual production, how is chlorinated butyl reclaimed rubber added to rubber products? How to adjust the formula after adding chlorinated butyl reclaimed rubber? Which rubber products can use chlorinated butyl reclaimed rubber?
1. Use of chlorinated butyl reclaimed rubber
(1) Application mode of chlorinated butyl reclaimed rubber
In actual production, chlorinated butyl reclaimed rubber can completely replace chlorinated butyl reclaimed rubber, or it can be used with chlorinated butyl rubber in proper proportion to produce rubber products, such as automobile and motorcycle inner tubes, damping blocks, sealing rings, heat resistant rubber sheets, etc. Chlorinated butyl reclaimed rubber can also be used with unsaturated rubber such as natural rubber, chloroprene rubber, styrene butadiene rubber and cis polybutadiene rubber; Or it can be used as a comonomer of synthetic butyl rubber to improve the vulcanization performance of butyl rubber.
(2) Formula design of reclaimed rubber products with chlorinated butyl rubber
When chlorinated butyl reclaimed rubber is used alone or combined with other rubbers to produce rubber products, because chlorinated butyl reclaimed rubber contains rubber hydrocarbons that can be vulcanized, it must be combined with sulfur and accelerator necessary for rubber hydrocarbons in vulcanized reclaimed rubber 2ELYY114. Compared with raw rubber, the sulfur and accelerator used in reclaimed rubber can be increased by about 20%. When chlorinated butyl reclaimed rubber and natural rubber are used together to produce rubber inner tubes and other products, even if the sulfur content is slightly higher, frost spraying like that of natural rubber will not occur.
When using chlorinated butyl reclaimed rubber to replace part of raw rubber to produce rubber products, it is necessary to comprehensively consider the use and quality requirements of rubber products, the purpose of matching chlorinated butyl reclaimed rubber, and the market price of products. First, determine the percentage of rubber, then determine what materials to use, and what proportion of reclaimed rubber to natural rubber and synthetic rubber. The chlorinated butyl reclaimed rubber can be used to replace the high priced raw rubber to produce rubber products; The effective rubber ingredients in the recycled rubber shall be used to determine the varieties and dosage of vulcanizing agent, accelerator, reinforcing agent, filler, antioxidant, softener, etc. in the formula.
2. Use of chlorinated butyl reclaimed rubber
In actual production, chlorinated butyl reclaimed rubber is widely used in the rubber product industry, and the common uses are as follows.
Chlorinated butyl reclaimed rubber is used in the tire industry for the production of tire components such as inner tube, sidewall, vulcanized capsule, and tubeless tire air seal, and is mostly used together with butyl rubber, chlorinated butyl rubber, and natural rubber. In rubber hose industry, chlorinated butyl rubber can be used alone or together with chlorinated butyl rubber to produce heat-resistant rubber hose, steam rubber hose and other products. In the conveyor belt industry, chlorinated butyl reclaimed rubber can be used together with butyl rubber, chlorinated butyl rubber or ethylene propylene diene monomer (EPDM) to produce heat-resistant conveyor belts in a proper proportion, reducing production costs on the premise of ensuring the physical properties of finished conveyor belts.
The chlorinated butyl reclaimed rubber retains the basic performance characteristics of butyl rubber and chlorinated butyl rubber, and has good damping and shock absorption properties. It is widely used in the production of shock absorption rubber products, such as vehicle shock pads, bridge bearings, etc. The reclaimed chlorinated butyl rubber can also be mixed with chlorinated butyl rubber or chlorinated butyl rubber/natural rubber blends for the production of rubber bladder. Chlorinated butyl reclaimed rubber has air permeability resistance, heat resistance, weather resistance and corrosion resistance, and can also be used in various industrial rubber products, such as equipment anti-corrosion lining, heat resistant seals, building gaskets, adhesives, sealing tapes, etc.
Chlorinated butyl reclaimed rubber is widely used in the rubber product industry. The usage and dosage of chlorinated butyl reclaimed rubber in different types of rubber products are quite different. Later, we will continue to discuss with you the specific application of chlorinated butyl reclaimed rubber in various types of rubber products, including vulcanization formula of chlorinated butyl reclaimed rubber products, key points of plastic mixing process, vulcanization parameter settings, molding precautions, etc.
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