Molding Process 7 조회수

EVA hardness is too low

문제 현상

EVA product Shore hardness is 5-10 degrees lower than target, feels soft

원인 분석

EVA's soft nature with low hardness; too much plasticizer or softener added; low crystallinity

해결 방법

1) Add 5-10wt% rigid filler to increase hardness; 2) Reduce plasticizer dosage; 3) Increase cooling rate to increase crystallinity

핵심 요약

Low hardness is caused by material softness and excessive plasticization; adding filler is key

EVA low hardness rigid filler plasticizer crystallization control

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