基于AFM-IR的高分子聚合物添加剂定量检测新方法  

A new method for quantitative detection of polymer additives based on AFM-IR

作　　者：罗放 Luo Fang(Sinopec Beijing Research Institute of Chemical Industry,Beijing 100013,China)

机构地区：[1]中石化(北京)化工研究院有限公司,北京100013

出　　处：《合成树脂及塑料》2024年第2期30-33,共4页China Synthetic Resin and Plastics

摘　　要：基于原子力-红外检测平台开发了一种定量检测聚合物中少量添加剂的方法。通过表征不同抗氧剂168含量的聚丙烯试样,统计不同试样特征红外吸收峰处的红外图像高亮点占比和平均信号强度变化,成功绘制了抗氧剂含量标准曲线,拟合度高达0.9967,这一方法可用于未知试样中不同添加剂含量的检测。A quantitative detection method for trace additives in polymers was established based on the atomic force microscopy-infrared spectroscopy(AFM-IR)detection platform.The proportion of high-light points and the average signal intensity at different infrared absorption wavelengths were statistically analyzed by characterizing polypropylene samples with different concentrations of antioxidant 168.The standard curve of antioxidant concentration was successfully drawn with a high fitting degree of 0.9967.This method can be used for detecting different additives in unknown samples.

关 键 词：原子力-红外技术 抗氧剂 聚丙烯 定量检测 

分 类 号：TQ325.14[化学工程—合成树脂塑料工业] O631.6[理学—高分子化学]