Material Analysis
11 조회수
EVOH Hardness Too High
문제 현상
EVOH product Shore hardness 5-10 degrees above target, hard to the touch
원인 분석
EVOH crystallinity too high, rigidity increased; filler added too much; cooling too fast, crystallization imperfect but rigidity frozen in
해결 방법
1) Reduce cooling rate to perfect crystallization and reduce hard feel; 2) Reduce filler addition; 3) Add plasticizer 0.5wt% to lower hardness
핵심 요약
High hardness is caused by crystallization and filler; adjusting cooling and filler is key
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