SET Proceedings 2978-4387 Caravel Press 10.65582/set.2005.064 2005.064 Study on Breakdown Characteristics of Polymer Material at the Super Low Temperature Environment ShimKyu Jin LeeSang Chul KimYoung Gem RahadiyanLubi JeongHyo Min ChungHan Shik Graduate School, Department of Mechanical and Precision Engineering, Gyeongsang National University, Tongyeong, KOREA School of Mechanical & Aerospace Engineering, Gyeongsang National University, Tongyeong, KOREA 23092005 4 1 978-7-112-07718-2 285 290 23 September 2005 © 2005 Copyright WSSET 2005

Resources recycling are very important and urgent technology for world industry. Development of waste recycling process includes environment protection and resources aspect. This process is very important for raw material of plastic industry, and the profit from this process is going to contribute national revenue. Especially waste plastic materials, if this process is not performed, it will cause serious problem for our environment. Therefore, recycling process technology of macro molecular material such as plastic is very important to be developed. The system for the treatment temperature (Tg) of waste material by using liquefied gas with super low temperature and technology is proposed for plastic recycling process. In addition, In this study, Impact energy is obtained for comminution of the low temperature in industry waste PE, PP, PVC material. The result of impact strength PE, PP and PVC in the super low temperature experiment at -80~-86°C is compared with normal temperature at 18°C. It is found that the impact strength of PE, PP, and PVC decrease about 94.6%, 90.57%, 93.12% respectively

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