Material Analysis
11 조회수
Performance decline of PBT products in high-temperature and high-humidity environments
문제 현상
The mechanical properties of PBT products decline significantly after aging in high temperature and high humidity (such as 85°C/85%RH).
원인 분석
PBT degrades (hydrolyzes) under hot and humid conditions, the molecular weight decreases and whitens, and glass fiber reinforced products degrade more severely due to interface damage.
해결 방법
Add anti-hydrolysis agents; select hydrolysis-resistant PBT grades; consider sufficient performance margin in design.
핵심 요약
PBT has limited hot and humid resistance and needs anti-hydrolysis stabilization.
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