汽车仪表板材料氙灯老化试验与自然曝晒试验相关性研究

目的研究人工加速老化试验与自然曝晒试验的相关性。方法分析汽车内饰材料老化的影响因素,选定3种汽车内饰件氙灯老化试验方法对仪表板材料进行人工加速试验,并与自然曝晒试验结果进行对比分析。结果该材料的光泽保持率随光照辐照量的增加呈下降趋势,色差随辐照量的增加而呈增加趋势,与自然曝晒试验趋势符合。结论通过计算相关系数和对比分析试验结果,表明采用GB/T 16422.2标准的氙灯老化试验与自然曝晒试验结果相关性较好。

Study on Correlation between Xenon Lamp Aging and Natural Exposure Methods of Automobile Instrument Panel Materials

Objective The correlation between artificial accelerated aging test and natural exposure test of automobile instrument panel materials was studied in this paper. Methods By analyzing the aging influencing factors of automobile interior materials,we opted three xenon lamp aging tests as artificial accelerated method to compare with the natural exposure test on instrument panel materials. Results With increasing radiation dose,gloss retention of the materials increased,while color difference decreased. The results were in accordance with the trend of natural exposure test. Conclusion To analyze correlation coefficient and compare with the natural exposure test,the results indicated a good correlation of the aging test with GB/T 16422.2.