Production & Quality
4 조회수
Acetaldehyde increase in PET bottles during storage
문제 현상
The AA content of PET bottles increases over time during storage, exceeding shelf-life standards.
원인 분석
Residual thermal history in the preform slowly releases acetaldehyde; insufficient crystallinity causes oxygen permeation that promotes AA generation; storage temperature is on the high side.
해결 방법
Reduce preform processing temperature to reduce initial AA; increase crystallinity to reduce oxygen permeation; store at low temperature <30°C; use oxygen-barrier bottle design.
핵심 요약
PET bottle AA content changes dynamically and needs full life-cycle control.
이 정보가 도움이 되었나요?
0 명이 도움이 되었다고 합니다
의견 주셔서 감사합니다!