| 摘要 |
<p>Curable ethylene-propylene rubber compsn. comprises (by wt.) 100 pts. ethylene-propylene rubber, 3-10 pts. chlorosulphonated polyethylene, 15-30 pts. ZnO, 50-125 pts. talc, 0.5-3 pts. vinylsilane, 10-32 pts. carbon black, 3-10 pts. Sb2O3, 1-4 pts. amine antioxidant, 0.2-4 pts. imidazole antioxidant, 2-8 pts. peroxide curing agent and 2-5 pts. co-curing agent. The prods. have improved tensile strength, heat resistance and physical and electrical properties. They are esp. useful as electrical insulation, esp. as cable coverings.</p> |
