聚氯乙烯是最早工业化的塑料之一,并在工农业以及日常生活中被广泛地应用,因此在日常工作中,常常碰到聚氯乙烯的鉴定,尤其是聚氯乙烯中的增塑剂的鉴定。我们知道样品如果不经处理,即使增塑剂含量高达50%以上,用红外光谱法也不能直接确定下来,往往要用溶剂萃取后拍摄光谱图;如果是混合增塑剂, PVC is one of the earliest industrialized plastics, and is widely used in agriculture, industry and daily life. Therefore, in daily work, it is often encountered the identification of PVC, especially the plasticizer in PVC Identification. We know that if the sample is untreated, even if the plasticizer content is as high as 50% or more, it can not be directly determined by infrared spectroscopy, and the spectrum is often taken after solvent extraction; if it is a mixed plasticizer,