Material Analysis
10 مشاهدة
PA66 UV aging protection
ظاهرة المشكلة
Outdoor PA66 parts are powdered and whitened on the surface after two years, and natural-color material embrittlement is especially severe
تحليل الأسباب
UV light excites photo-oxidative fracture of PA66 molecular chains, the surface powders and expands inward; unprotected natural-color material has short outdoor life, and black parts are significantly better than natural-color parts
الحل
①Select carbon black filled black grades for outdoor parts; ②Add UV stabilizers or evaluate weather-resistant materials for long-term exposure scenarios; ③Regular appearance inspection and early replacement; after adjustment, take continuous samples to verify the effect, confirm stability before resuming mass production
الخلاصة الأساسية
Carbon black is the most economical and effective UV protection for PA66; material substitution should be evaluated at the material selection stage for high-requirement outdoor scenarios; after confirming effectiveness, fix the parameters and practices into the work instructions to prevent recurrence
هل كان هذا مفيدًا؟
0 شخص وجدوا هذا مفيدًا
شكرًا لك على ملاحظاتك!