Molding Process
7 조회수
LLDPE film haze
문제 현상
High transparency requirements cannot be met; the film appears hazy.
원인 분석
LLDPE crystallization and surface state affect transparency; surface melt fracture or uneven cooling aggravates haze.
해결 방법
①Solve sharkskin/melt fracture; ②rapid cooling with air ring; ③select a high-transparency grade (metallocene); ④improve melt temperature uniformity.
핵심 요약
Haze = surface + crystallization; mLLDPE is the upgrade path.
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