화학공학소재연구정보센터
학회 한국공업화학회
학술대회 2019년 봄 (05/01 ~ 05/03, 부산 벡스코(BEXCO))
권호 23권 1호
발표분야 석유화학·윤활유_포스터
제목 Low Energy Recycling Technique of Waste CFRPs by Pyrolysis Activation Energy
초록 An energy-efficient recycling technique was developed using various reactive gases and pyrolysis periods. An activation energy study of the polymer matrix decomposition was employed in order to obtain optimal pyrolysis conditions as a function of reactive gases. From the results, the total energy consumption for matrix pyrolysis at the low-temperature region (under 400°C) was the smallest with the carbon dioxide atmosphere. To remove all carbonaceous residue, a two-step pyrolysis technique was used, consisting of a low-temperature decomposition (carbon dioxide at 400°C) and high-temperature decomposition (superheated steam method at 700°C). Properly recycled carbon fibers were obtained after more than 40 min of superheated steam treatment. The mechanical strength of the recycled carbon fibers was measured using a single fiber tensile test, and it was found that all recycled fibers had over 80% of the strength of virgin carbon fibers.
저자 정진수1, 김관우2, 안계혁1, 김병주3
소속 1전주대, 2한국탄소융합기술원 / 전북대, 3한국탄소융합기술원
키워드 Carbon fiber; Heat treatment; Tensile strength; Super-heated steam; Low energy recycling
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