The main raw material of chlorinated butyl reclaimed rubber is medicinal butyl bottle stopper, which can be used together with unsaturated rubber such as natural rubber, neoprene rubber, styrene butadiene rubber, butadiene rubber, etc., to improve the overall performance of rubber products. In actual production, the combined use of chlorobutyl rubber and different types of rubber requires the selection of a suitable vulcanization system to further improve the performance of the finished product.
4. Combined use of chlorinated butyl rubber and butadiene rubber
Butadiene rubber has the characteristics of high elastic modulus and excellent low temperature performance. Chlorinated butyl rubber and butadiene rubber are used together, and the vulcanized rubber has a large dynamic modulus and good low temperature performance. The chlorinated butyl compound/butadiene rubber compound rubber can adopt a variety of vulcanization systems, such as sulfur-accelerator TMTD, zinc oxide system, etc.; proper adjustment of the blending process can further improve the strength and elongation performance and resistance of the CIIR/BR compound rubber Grinding performance.
5. Combined use of chlorinated butyl rubber and EPDM
The chemical structure of EPDM rubber is similar to that of chlorinated butyl rubber, its vulcanization speed is close, and the rubber has good heat resistance and flex resistance. In actual production, chlorinated butyl rubber compound can be used together with EPDM 2YLYY827 in any ratio, both sulfur vulcanization system and peroxide vulcanization system. After chlorinated butyl rubber/natural rubber/EPDM rubber is vulcanized with an alkyl phenol disulfide system, the vulcanized rubber has excellent dynamic ozone resistance and flexural resistance.
6. Combined use of chlorinated butyl rubber and nitrile rubber
The chlorinated butyl compound itself does not have oil resistance, and the vulcanized rubber has good oil resistance after being used with nitrile rubber. In actual production, when the combined ratio of chlorobutyl rubber/nitrile rubber is 75/25, the oil resistance of the combined rubber is equivalent to that of chloroprene rubber; when the combined ratio of chlorinated butyl rubber/nitrile rubber is 50/50, vulcanization The oil resistance of rubber is better than that of neoprene. CIIR/NBR combined rubber mostly uses sulfur-zinc oxide vulcanization system.
7. Combined use of chlorobutyl rubber and neoprene
Chlorinated butyl rubber and appropriate amount of chloroprene rubber can be vulcanized with a variety of vulcanization systems, such as NA-22, TMTD-DM, etc., to improve the oil resistance of the rubber; among them, the rubber vulcanized with NA-22 has good oil resistance. The TMTD-DM vulcanized rubber has excellent tensile properties before and after aging.
In actual production, chlorinated butyl rubber or chlorinated butyl reclaimed rubber can also be used together with chlorosulfonated polyethylene rubber to improve the oil resistance and weather resistance of vulcanized rubber. I will not go into details here. I have the opportunity to continue with you. Discuss related issues.
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