화학공학소재연구정보센터
학회 한국화학공학회
학술대회 2011년 봄 (04/27 ~ 04/29, 창원컨벤션센터)
권호 17권 1호, p.83
발표분야 고분자
제목 Crystallization characteristics of crosslinked High Density Polyethylene using Supercritical Fluid
초록 The crystallization, and mechanical of decrosslinked crosslinked-high-density polyethylenes using supercritical fluid were investigated by DSC, WAXS, DMTA and POM.
Silane-crosslinked high-density polyethylenes were successfully decrosslinked in a supercritical fluid condition. The residual gel content of the decrosslinked samples decreased with the reaction temperature. The crystallization behavior, mechanical properties of the decrosslinked samples were influenced considerably by the gel content. As the gel content increased, the network gel structure restricted the chain mobility of polymer molecules in the melt state and hindered their crystallization. Thus, the non-terminal yield behavior in the melt state was enhanced and the crystallinity decreased. The dynamic elastic modulus of the decrosslinked sample in solid state increased with the increase in the crystallinity.
저자 조항규1, 홍순만2, 유기풍1, 임종성1
소속 1서강대, 2한국과학기술(연)
키워드 crystallization; decrosslink; supercritical fluid
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