【摘要】 采用加热显色法、傅立叶红外光谱法和称量法对废聚对苯二甲酸乙二酯中的氯乙烯共聚物进行定量检测。讨论了加热温度和加热时间对聚氯乙烯颜色和质量的影响,选择了样品加热处理的温度和时间。样品测定的平均回收率为99.8%。方法简单、实用、准确。更多还原

【Abstract】 The content of vinyl chloride copolymer in the polyethylene terephthalate scrap was analysed by using the heating method,the Fourier transform infrared spectrometry and the gravimetric method.The influence of the heating temperature and time on the mass and color of vinyl chloride copolymer were discussed.The conditions of the heating time and temperature to deal with the samples were choosed.The avarage recoveries of samples were 99.8%(n=8).The method was simple,applied and accurate.更多还原