Production & Quality
7 görüntüleme
Yellowing of EAA products after processing
Sorun Belirtisi
After 1 week of storage, the surface of EAA products gradually yellows, color difference ΔE>3
Neden Analizi
Incomplete antioxidant system, thermal-oxidative degradation produces yellow products; ultraviolet irradiation accelerates photo-oxidation; residual transition metal catalysts catalyze oxidation
Çözüm
1) Improve the antioxidant system 1010(0.1)+168(0.1)+DSTDP(0.2)wt%; 2) Add 0.2-0.5wt% UV absorber; 3) Add 0.05wt% metal deactivator; 4) Select low-residue raw material grades
Temel Çıkarım
Yellowing is caused by thermal and photo-oxidation and metal catalysis; improving the antioxidant system and UV absorber is the key
Bu faydalı oldu mu?
0 kişi bunu faydalı buldu
Geri bildiriminiz için teşekkürler!