화학공학소재연구정보센터
홈 로그인 로그아웃 연락처 사이트맵
Korean Chemical Engineering Research, Vol.50, No.1, 88-92, February, 2012
Export Citation
초임계 메탄올에서 가교폴리프로필렌과 가교폴리에틸렌의 재활용성 비교
Recycling of Crosslinked Polypropylene and Crosslinked Polyethylene in Supercritical Methanol
이홍식, 정주형, 홍순만1, 구종민1, 조항규1, 이윤우†
  • 서울대학교 화학생물공학부, 151-742 서울 관악구 관악로 1
  • 1한국과학기술연구원, 136-791 서울 성북구 화랑로 14길 5
Hong-shik Lee, Ju Hyeong Jeong, Soon Man Hong1, Chong Min Koo1, Hang-Kyu Cho1, and Youn-Woo Lee†
  • School of Chemical and Biological Engineering, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 151-742, Korea
  • 1Korea Institute of Science and Technology, 14-gil 5 Hwarang-ro, Seongbuk-gu, Seoul 136-791, Korea
E-mail:
초록
초임계 메탄올에서 가교폴리프로필렌의 탈가교 반응에 대해 연구하고 이를 가교폴리에틸렌의 탈가교 반응과 비교하였다. 회분식 반응기를 이용하여 반응 온도와 초기 겔 함량이 탈가교 반응 속도에 미치는 영향을 알아보았고, 정량적 분석을 위해 반응 전후의 겔 함량을 측정하였다. 반응 온도가 증가할수록, 초기 겔 함량이 증가할수록 탈가교 반응 속도가 증가하였고, 반응 속도는 겔 함량에 선형적으로 의존하였다. 가교폴리프로필렌의 탈가교 반응이 가교폴리에틸렌보다 빠르게 일어나는 것을 확인하였고, 반응속도상수를 계산하여 이를 정량적으로 확인하였다. 이를 통해 재활용 측면에서는 가교폴리프로필렌이 가교폴리에틸렌보다 우수한 것을 알 수 있다.
Decrosslinking of crosslinked polypropylene(XLPP) in supercritical methanol was investigated compared with that of crosslinked polyethylene(XLPE). Effect of reaction temperature and initial gel contents was studied using a batch reactor. Gel contents of samples before and after reaction were measured for quantitative analysis. As reaction temperature and initial gel contents increased, the decrosslinking rate increased. The rate of decrosslinking reaction is dependent linearly on the gel contents. Experimental results indicated that the decrosslinking of XLPP was faster than that of XLPE, and it was confirmed quantitatively by the calculation of kinetic constants. In conclusion, it is considered that XLPP has better recyclability than XLPE.
Keywords:Crosslinked Polypropylene;Crosslinked Polyethlene;Supercritical;Decrosslinking;Recycling
  1. Imran M, Kim BK, Han M, Cho BG, Kim DH, Polym. Degrad. Stabil., 95(9), 1685 (2010)
  2. Genta M, Iwaya T, Sasaki M, Goto M, Hirose T, Ind. Eng. Chem. Res., 44(11), 3894 (2005)
  3. Kaiso K, Sugimoto T, Kashiwagi K, Kamimura A, Chem. Lett., 40(4), 370 (2011)
  4. Goto M, J. Supercrit. Fluids, 47(3), 500 (2009)
  5. Bai Y, Wang Z, Feng L, Mater. Design., 31(2), 999 (2010)
  6. Piero-Hernanz R, Dodds C, Hyde J, Garca-Serna J, Poliakoff M, Lester E, Cocero MJ, Kingman S, Pickering S, Wong KH, Compos.Part A - Appl. S., 39(3), 454 (2008)
  7. Kamimura A, Yamada K, Kuratani T, Taguchi Y, Tomonaga F, Chem. Lett., 35(6), 586 (2006)
  8. Cho HK, Hong SM, Baek KY, Koo CM, Lee HS, Lee YW, Macromol. Res., 17(12), 950 (2009)
  9. Lee H, Jeong JH, Cho HK, Koo CM, Hong SM, Kim H, Lee YW, Polym. Degrad.Stabil., 93, 2084 (2008)
  10. Hong SM, Cho HK, Koo CM, Lee JH, Park WY, Lee HS, Lee YW, Korean Chem. Eng. Res., 46(1), 63 (2008)
  11. Watanabe S, Komura K, Nagaya S, Morita H, Nakamoto T, Hirai S, Aida F, “Development of Cross-Linked Polymer Material Recycling Technology by Supercritical Water,” Proceedings of the 7th Intemational Conference on Properties and Applications of Dielectric Materials, June, Nagoya (2003)
  12. Hornback JM, Organic Chemistry, Thomson Learning, Belmont (1998)