화학공학소재연구정보센터
학회 한국고분자학회
학술대회 2021년 봄 (04/07 ~ 04/09, 대전컨벤션센터)
권호 46권 1호
발표분야 고분자 가공/복합재료
제목 A Study on the Size Control of EVOH Dispersed Phase in PP/EVOH Blend System According to CMC Addition
초록 Polypropylene (PP)/ethylene vinyl alcohol copolymer (EVOH) blends are widely known as immiscible blend systems. In this study, CMC (cellulose microcrystal), which has high affinity with EVOH, was added to the PP/EVOH blend to prove that it is effective in reducing the EVOH dispersed phase in the PP matrix. It was confirmed through mechanical, thermal, and rheological analysis that the PP/EVOH blend gradually changed to a property similar to PP as the content of CMC increased. In addition, it was observed using morphology analysis that the size of the EVOH dispersed phase decreases with increasing CMC content in the PP/EVOH blend. When the PP/EVOH blend with the reduced size of the EVOH dispersed phase is biaxially stretched, the EVOH will be located in a more complex form in the PP matrix, and it is predicted that the oxygen barrier property will be further improved due to these morpholgical properties.
저자 정빛남, 강동호, 김기홍, 이준혁, 손다솜, 심진기
소속 한국생산기술(연)
키워드 Polypropylene; Ethylene vinyl alcohol copolymer; Blend; Cellulose microcrystal
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