EPDM = aging, basically using EPDM rubber / reclaimed rubber production of rubber products manufacturers are running with its excellent resistance to aging, high temperature resistance to go? So why is EPDM rubber/reclaimed rubber very resistant to aging and high temperature? In fact, this is inseparable from their internal molecular structure characteristics. At the same time, it also gives EPDM rubber/reclaimed rubber more performance.
EPDM rubber is a copolymer of ethylene, propylene and a small amount of non-conjugated diene. EPDM reclaimed rubber is processed from waste EPDM rubber and used EPDM rubber products. The original molecular structure of some EPDM rubbers has almost the same performance as EPDM rubber.
1, saturation
The main chain of EPDM reclaimed rubber is composed of chemically stable saturated hydrocarbons, and only contains a small amount of unsaturated double bonds on the side chains, making EPDM reclaimed rubber excellent in high temperature resistance, aging resistance, weather resistance, and ozone resistance. Performance; stable chemical properties. EPDM reclaimed rubber has excellent high temperature resistance and can work in the environment of about 120°C for a long time; EPDM reclaimed rubber has strong resistance to ozone, oxygen, light, ultraviolet rays, thunderstorms, etc., and is not prone to cracking. phenomenon.
2, non-polar
EPDM reclaimed rubber is a typical non-polar rubber that has good resistance to various polar solutions and chemicals such as alcohols, aldehydes, alkalis, amines, weak acids, oxidants, inorganic salts, animal and vegetable oils, etc.; water absorption Low; good electrical insulation properties; non-polar EPDM reclaimed rubber molecular cohesion is low, the molecular chain can maintain a wide range of flexibility, EPDM reclaimed rubber also has good low temperature performance.
EPDM reclaimed rubber is resistant to high and low temperature, anti-aging, high insulation and corrosion resistance. It has been widely used in outdoor rubber products such as wire and cable jackets, sealing products, and waterproofing membranes. It can be said that it is everywhere. However, "supernatural power" EPDM reclaimed rubber is not omnipotent, its compatibility, oil resistance, airtightness, flame retardant, self-adhesion, mutual stickiness is poor, so to avoid these uses during use occasion.
The internal structure of EPDM recycled rubber determines its performance. Regardless of the good side or the bad side, we must treat it dialectically; when using EPDM reclaimed rubber to produce rubber products, we can use it alone. It can also be used together with raw rubber or butyl rubber to improve the performance of rubber products and prolong their service life.
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