Large amount of polymer material was used in automotive interior and exterior trim system.As there were some disadvantages in the molecular structure of the material itself,the polymer material was easily produced aging for the environment factor such as light,heat,water and oxygen etc.In order to improve the aging property of polymer material,this article classified the atmospheric exposure test problems,analyzed the causes of failure,and proposed quality control measures from various aspects such as material selection,test verification,and consistency of production process etc.
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