English Abstract

The pursuit of Safety in Manufacture
Part IV Countermeasures of Degradation for Rubbers and Plastics Learned from Material Recycling and Trap of Biofuel
(I Material Recycling)

Yoshito OHTAKE
Chemicals Evaluation and Research Institute, Japan, Kitakatsushika-gun, Saitama, Japan
Nippon Gomu Kyokaishi,(2018),91(1),13-20 General Review in Japanese

A large amount of antioxidant is added to recycled plastic products. The amount reaches nearly ten times of the virgin. This reason is to prevent shortening of the lifetime caused by autoxidation. The recycled products contain much amount of radicals due to damage during re-molding and using, even if the physical properties are not affected.

Keywords: Recycle, Antioxidant, ESR