| 학회 |
한국화학공학회 |
| 학술대회 |
2009년 봄 (04/23 ~ 04/24, 광주 김대중컨벤션센터) |
| 권호 |
15권 1호, p.14 |
| 발표분야 |
고분자 |
| 제목 |
Decrosslinking reaction of crosslinked polyolefin by using sub- and supercritical fluids |
| 초록 |
The recycling of crosslinked polyolefin (XLPO) by decrosslinking reaction was studied. Experimentswere executed under sub- and supercritical condition with change of factors such as pressure, solvents, weight ratio of solvent to XLPO and heat sources to determine the optimum condition for continuous system. This reaction was achieved in the sub- and supercritical fluids, especially as for methanol, with little degradation of back-bone chain, and ethanol was also considered as a good solvent because the comparable result methanol was shown and it was non toxic unlike methanol. Pressure changemadeno significant difference under supercritical condition while the conversion was a little bit decreased under subcritical condition. This reaction could proceed under even small amount of solvent such as the weight ratio of 1:1. Upon using salt bath as a heat source, taking time to reach the reaction temperature was much shorter than heating jacket and uniform temperature distribution could be expected by agitation. Decrosslinking rate of XLPP was much faster than the one of XLPE. It was considered that more branches on XLPP could make more tertiary carbon radicals than XLPE, and that made difference between XLPP and XLPE. |
| 저자 |
정주형1, 이홍식1, 조항규2, 구종민2, 홍순만2, 이윤우1, 김화용1
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| 소속 |
1서울대, 2한국과학기술(연) |
| 키워드 |
crosslinked polyolefins; decrosslinking reaction; sub- and supercritical condition
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| E-Mail |
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| 원문파일 |
초록 보기 |
