Concentrating on phosphite antioxidants for 30 years

CHPHOS® PDP Poly(dipropyleneglycol)phenyl phosphite

Product Introduction CAS No.:80584-86-7
Molecular weight:~2100
Structural formula:
Quality index Appearance:Colorless Transparent Liquid
Refractive index(25℃,η25):1.5340-1.5380
Package 200KG Drum
Application PVC、ABS、PU
Application Description A polymer type phosphite antioxidant with high molecular weight and high phosphorus content, suitable for multi-purpose polymers, including PVC, ABS, polyurethane, polycarbonate, and coatings. It can improve the thermal stability and long-term stability of products in processing and applications. As an auxiliary antioxidant and chelating agent used in hard or soft PVC products, it can maintain a brighter and more durable color of PVC and improve its thermal stability. Applied in polyurethane materials, it has a significant inhibitory effect on phenol yellow and NOX yellowing, and improves its thermal stability and long-term stability. Suggested dosage: 0.1~2.0%

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