Environmental stability of ABS plastics

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Abstract
Experiments with different ABS resins indicate that thermal stability in this class of polymers is dependent upon the ratio of styrene–acrylonitrile copolymer to polybutadiene rubber in the graft phase; resins containing more highly grafted rubber are more resistant to thermal oxidation. It is also found that in outdoor aging there is a minimum carbon black loading for these resins below which light screening is not effective.

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