聚丙烯中抗氧剂3125的定量分析及应用  

Quantitative Analysis and Application of Antioxidant 3125 in Polypropylene

作　　者：陈键[1] 张桂云[1] 梁进杰[1] 

机构地区：[1]仲恺农业工程学院化学化工学院,广东广州510225

出　　处：《现代塑料加工应用》2014年第5期41-44,共4页Modern Plastics Processing and Applications

摘　　要：经混炼机混料,得到聚丙烯(PP)/抗氧剂3125和PP/抗氧剂3125/抗氧剂168(定量)2个体系。利用红外光谱法测定2个体系中抗氧剂3125特征吸收峰面积,并由特征吸收峰面积与含量的关系拟合方程,得到相关系数均大于0.98的标准曲线,经置信度检验,相对误差小于8%,能满足实际检测的需要。By using of mixing machine, two systems, e.g., the system 1polypropylene（PP）/antioxidant 3125 and the system 2PP/antioxidant 3125/antioxidant 168（quantitative）were prepared.Infrared spectroscopy analysis was performed to determine the characteristic absorption peak area of antioxidant 3125 from the two systems.The relationship between area and levels was analyzed and the fitting equation was obtained.The correlation coefficients were greater than 0.98.It was found that the relative error was less than 8% through accuracy verification,which meet the needs of the actual detection of antioxidants.

关 键 词：聚丙烯 抗氧剂 定量 分析 

分 类 号：TQ325.14[化学工程—合成树脂塑料工业] O657.33[理学—分析化学]