화학공학소재연구정보센터
홈 로그인 로그아웃 연락처 사이트맵
Applied Chemistry for Engineering, Vol.28, No.1, 23-28, February, 2017
DOI10.14478/ace.2016.1091  Export Citation
폐플라스틱 필름의 열분해특성에 대한 연구
Research on Pyrolysis Properties of Waste Plastic Films
김영민, 이보람, 한태욱, 김승도†, 류태우1, 방병열1, 김종수1, 박영권2
  • 한림대학교 환경생명공학과
  • 1한국생산기술연구원
  • 2서울시립대학교 환경공학부
Young-Min Kim, Boram Lee, Tae Uk Han, Seungdo Kim†, Tae-U Yu1, Byoung Yeol Bang1, Joug-Su Kim1, and Young-Kwon Park2
  • Department of Environmental Sciences and Biotechnology, Hallym University, ChunCheon 24252, Korea
  • 1Korea Institute of Industrial Technology, Cheonan 31056, Korea
  • 2School of Environmental Engineering, University of Seoul, Seoul 02504, Korea
E-mail:
초록
열중량 분석기와 파이롤라이저-가스크로마토그래피/질량분석기를 이용하여 폐플라스틱 필름의 열분해 특성연구를 수행하였다. 열중량 분석 결과, 최근 사용량이 증가된 녹말 첨가 바이오 플라스틱의 영향으로 폐플라스틱 필름의 열분해는 200 °C에서 370°C 사이의 녹말 분해구간과 370 °C에서 510 °C 사이의 PS, PP, PE와 같은 플라스틱계열의 고분자 분해구간을 가지는 것을 확인할 수 있었다. Revised Ozawa method를 이용한 동역학 분석 결과 폐플라스틱 필름의 열분해 반응 활성화 에너지는 녹말과 플라스틱계열 고분자의 다른 분해 반응에 의해 급격하게 변화되었다. 파이롤라이저-가스크로마토그래피/질량분석 결과 폐플라스틱 필름에 포함된 각 고분자의 열분해 부산물인 levoglucosan (녹말), terephthalic acid (PET), styrene monomer/dimer/trimer (PS), methylated alkenes (PP), alkadiene/alkene/alkane으로 구성된 triplet 피크 (PE)가 나타남을 확인할 수 있었다. 또한 고분자 첨가제로 사용되는 프탈레이트 성분도 검출되었다.
Pyrolysis characteristics of waste plastic films were investigated by using a thermogravimetric analysis and pyrolyzer-gas chromatography/mass spectrometry. Thermogravimetric analysis results revealed that the pyrolysis of waste plastic films can be divided into two distinct reactions; (1) the decomposition reaction of starch at between 200 and 370 °C and (2) that of other plastic polymers such as PS, PP, PE at between 370 and 510 °C. The kinetic analysis results obtained by using the revised Ozawa method indicated that the apparent activation energy of the pyrolysis reaction of waste plastic films was also changed dramatically according to the different decomposition reactions of two major waste plastic film components. Py-GC/MS results also revealed that the typical pyrolyzates of each polymer in waste plastic films were levoglucosan (starch), terephthalic acid (PET), styrene monomer, dimer, and trimer (PS), methylated alkenes (PP), and triplet peaks (PE) composed of alkadiene/alkene/alkane. The phthalate, used as a polymer additive, was also detected on the pyrogram of waste plastic films mixture.
Keywords:waste plastic films;bioplastics;starch;kinetic analysis;Py-GC/MS
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