本文利用傅里叶变换红外光谱仪对常见的不同厂家、不同型号的汽车车灯灯罩进行了红外光谱测定。对得到的红外光谱图进行解析分析后, 发现可以将汽车车灯灯罩材料分为三大类, 分别为聚碳酸酯、聚苯乙烯和聚甲基丙烯酸甲酯。实验结果能够为相关案件的检验鉴定工作提供依据和参考。

In this paper, analysis of common car lampshades from cars of different manufacturers and different models was made by FTIR. After analyzing the infrared spectra in detail, we found the material of car lampshades can be divided into three categories-polycarbonate, polystyrene and polymethyl-methacrylate. The results of the tests can provide basis and reference for identification of related cases.