| 摘要 |
PROBLEM TO BE SOLVED: To provide an insulating high polymer material composition which has improved weather resistance, anti-tracking property, electrical insulation property, and moldability and is of light weight. SOLUTION: This composition is acquired in such a manner that EPDM (ethylene-propylene-diene-monomer) rubber is selected as a high polymer material, while that aluminum hydroxide as a filling material, a peroxide-grouped organic peroxide as a curing agent, carbon black as a molding assistant, stearic acid, zinc oxide, and N-cyclohexylthiophthalimide are added to this EPDM rubber, and that the kneaded mixture is molded by an injection molding means. In this case, aluminum hydroxide of 150 weight portions, the peroxide-grouped organic peroxide of 4 weight portions, carbon black of 2 weight portions, stearic acid of 1 weight portion and zinc oxide of 1 weight portion are added to the EPDM rubber of 100 portions. |
