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Depolymerization of Waste Polyurethane from Automotive Seats

자동차 시트용 폐폴리우레탄의 해중합

  • Min, Sung-Jin (Div. of Ceramic and Chemical Engineering, Myongji Univ.) ;
  • Kong, Seung-Dae (Div. of Ceramic and Chemical Engineering, Myongji Univ.) ;
  • Yoon, Cheol-Hun (Div. of Ceramic and Chemical Engineering, Myongji Univ.) ;
  • Kang, An-Soo (Div. of Ceramic and Chemical Engineering, Myongji Univ.) ;
  • Eom, Jae-Yeol (Jin-Won Chemical. Co. Ltd.) ;
  • Shin, Pan-Woo (Div. of Application Chemistry, Dongyang Technical College.) ;
  • Lee, Seok-Woo (BEED, Agency for Technology & Standards.)
  • 민성진 (명지대학교 공과대학 세라믹화학공학부) ;
  • 공승대 (명지대학교 공과대학 세라믹화학공학부) ;
  • 윤철훈 (명지대학교 공과대학 세라믹화학공학부) ;
  • 강안수 (명지대학교 공과대학 세라믹화학공학부) ;
  • 엄재열 ((주) 진원케미컬) ;
  • 신판우 (동양공업대학 응용화학과) ;
  • 이석우 (산업자원부 기술표준원 생물환경과)
  • Published : 2001.06.30

Abstract

Resource recovery and recycling of materials and products, including polyurethanes is viewed as a necessity in today's society. Most urethane polymers are made from a polyol and a diisocyanate. these and be chemicals such as water, diamines or diols that react with isocyanate groups and add to the polymer backbone. The problems of recycling polyurethane wastes has major technological, economic and ecological significance because polyurethane itself is relatively expensive and its disposal whether by burning is also costly. In general, the recycling methods for polyurethane could be classified as mechanical, chemical and feedstock. In the chemical recycling method, there are hydrolysis, glycolysis, pyrolysis and aminolysis. This study, the work was carried out glycolysis using sonication ant catalyzed reaction. Different kinds of recycled polyols were produced by current method(glycolysis), catalyzed reaction and sonication as decomposers and the chemical properties were analyzed. The reaction results in the formation of polyester urethane diols, the OH value which is determined by the quantity of diol used for the glycolysis conditions. The glycolysis rates by sonication for the various glycols, increased as fallows: PPG

Keywords

Cited by

  1. Effect of different catalysts on recovery and reuse of waste polyurethane rigid foam vol.8, pp.3, 2001, https://doi.org/10.1088/2053-1591/abeabb