阻燃ABS的光老化研究OACSTPCD

By investigating the changes of color difference before and after aging,the effects of flame retardants,weathering agents and titanium dioxide on the weather resistance of flame retardant ABS were studied.The results showed that the brominated flame retardant system had a great influence on the weather resistance of ABS materials,and the color difference became significantly larger after light-aging,and cracks appeared in about 500 hours.Ultraviolet absorbers can effectively improve the photoaging resistance of flame-retardant ABS,while the effect of hindered amines is not obvious.The addition of titanium dioxide can effectively improve the light aging resistance of flame retardant ABS,and the light aging resistance of flame retardant ABS can be comparable to that of ordinary ABS by compounding with weathering agents.