Material Drying
5 조회수
TPU Hydrolysis Aging
문제 현상
Polyester-type TPU products crack after one year in a hot and humid environment
원인 분석
Polyester-type TPU has poor hydrolysis resistance; in hot and humid environments, ester bonds hydrolyze and molecular weight decreases; when troubleshooting on site, verify item by item according to this mechanism, avoiding blind machine adjustment based solely on experience; this mechanism has been repeatedly verified by industry materials and should be confirmed first during troubleshooting
해결 방법
Choose polyether-type TPU for hot and humid environments; store products protected from heat and humidity; verify according to aging standards; after adjustment, continuously sample to verify the effect, and resume mass production only after confirming stability; change only one variable at a time and record parameter changes to facilitate locating effective measures
핵심 요약
Polyether-type TPU is a must for hot and humid environments; after confirming effectiveness, fix the parameters and practices into the work instruction to prevent recurrence; include this case in the defect archive as a reference for troubleshooting similar problems later
이 정보가 도움이 되었나요?
0 명이 도움이 되었다고 합니다
의견 주셔서 감사합니다!