Material Analysis
11 조회수
Additive Precipitation of PBT
문제 현상
After long-term storage of PBT products, white powdery precipitates appear on the surface.
원인 분석
Additives (slip agents, antioxidants, etc.) have limited solubility in the matrix and migrate to the surface over time and precipitate (blooming).
해결 방법
Control the amount of additives within the solubility range; use high molecular weight additives to reduce the migration rate.
핵심 요약
PBT precipitates affect appearance and electrical properties.
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