Molding Process 7 조회수

Insufficient strength of PVA water-soluble film

문제 현상

PVA water-soluble film tensile strength <30MPa, below the 40MPa requirement

원인 분석

PVA alcoholysis degree on the low side causing insufficient strength; film thickness insufficient

해결 방법

1) Select high alcoholysis degree PVA >98% to increase strength; 2) Increase film thickness; 3) Add 5wt% plasticizer to improve strength

핵심 요약

PVA water-soluble film strength is determined by alcoholysis degree; selecting a high alcoholysis degree grade is the key

PVA water-soluble filmtensile strengthalcoholysis degreefilm thicknessplasticizer

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