Material Analysis
4 조회수
Weather resistance of modified polyamide 12 (long carbon chain nylon) not up to standard
문제 현상
The weather resistance of modified polyamide 12 (long carbon chain nylon) is not up to standard, with yellowing, embrittlement, or significant performance decline after outdoor use
원인 분석
（1）No ultraviolet absorber is added or the addition amount is insufficient
（2）The antioxidant system is imperfect
（3）The ultraviolet absorber has poor compatibility with polyamide 12 (long carbon chain nylon)
（4）The antioxidant is consumed and degraded during processing
（5）Unreasonable formulation design
해결 방법
（1）Add an appropriate amount of ultraviolet absorber (0.2-0.5%)
（2）Improve the antioxidant system with primary/secondary antioxidant combination
（3）Select a UV absorber with good compatibility
（4）Avoid high-temperature degradation of the antioxidant during processing
（5）Optimize the formulation design
핵심 요약
Weather resistance needs to be addressed from UV absorbers and antioxidants
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