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제124회 대한화학회 학술발표회, 총회 및 기기전시회 안내 Fabrication of floor polyurethane using environmental –friendly curing agent MBEA

등록일
2019년 9월 4일 23시 11분 58초
접수번호
1951
발표코드
MAT.P-396 이곳을 클릭하시면 발표코드에 대한 설명을 보실 수 있습니다.
발표시간
10월 17일 (목요일) 11:00~12:30
발표형식
포스터
발표분야
Material Chemistry
저자 및
공동저자
Sang won Lee, Dongwoon Jung*
Department of Chemistry Engineering, Wonkwang University, Korea
MOCA [4,4-Methylene-bis (2-chloroaniline), which has been used as a curing agent for polyurethanes, has been widely used to make polyurethane elastomers with strong mechanical properties. However, MOCA is a solid at room temperature, which is inconvenient to be melted at 110 ℃ or higher when synthesized. Also MOCA structurally attached to chlorine atoms, occuring HCl and phosgene that classified as carcinogens and toxic substances when decomposition at high temperatures. Therefore, it is needed to develop an environmental-friendly polyurethane curing agent to replace MOCA. In this study, we synthesized nontoxic MBEA [4,4-Methylene-bis- (o-ethylaniline)] to substitute chlorine with ethyl group and liquefied at room temperature. Polyurethane elastomers were prepared using MBEA and showed similar properties in hardness and curing time as in the case of conventional MOCA.

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