热重分析仪在复杂填充聚丙烯材料中碳酸钙定量分析中的应用  

Thermogravimetric Analyzer for Quantitative Analysis of Calcium Carbonate in Complex Filled Polypropylene Materials

作　　者：李卫领 庞承焕 吴博 叶南飚 黄险波 LI Wei-ling;PANG Cheng-huan;WU Bo;YE Nan-biao;HUANG Xian-bo(Enterprise Technology Center of Kingfa Science&Technology Co.,Ltd.,Guangzhou 510663,China;National Engineering Laboratory for Plastic Modification and Processing,Guangzhou 510663,China;National Polymer Materials Industry Innovation Center Co.,Ltd.,Guangzhou 510663,China)

机构地区：[1]金发科技股份有限公司企业技术中心,广东广州510663 [2]塑料改性与加工国家工程实验室,广东广州510663 [3]国高材高分子材料产业创新中心有限公司,广东广州510663

出　　处：《塑料工业》2020年第7期85-89,共5页China Plastics Industry

基　　金：国家重点研发计划项目(2019YFF0215502)。

摘　　要：利用热重分析仪(TGA)对碳酸钙填充玻纤增强聚丙烯材料涉及的原材料进行分解性质的研究和分析,优化了实验条件,最终通过碳酸钙在650~750℃下分解损失的质量与碳酸钙中二氧化碳的质量损失(44%)相一致,并且对不同碳酸钙改性体系中碳酸钙质量分数进行测定和重复性验证,相对偏差均小于10%;结果表明利用TGA可以方便、快捷地完成单一碳酸钙改性聚丙烯和复杂填充聚丙烯材料中碳酸钙的定量分析。The thermogravimetric analyzer(TGA) was used to study and analyze the decomposition properties of the raw materials involved in calcium carbonate-filled glass fiber reinforced polypropylene materials,and the experimental conditions were optimized.Finally,the weight loss of calcium carbonate at 650 ~750 ℃ was the same with the weight loss of carbon dioxide in calcium carbonate(44%),and the calcium carbonate content in different calcium carbonate modified systems were measured and verified.The relative deviations were less than 10%.The results show that the use of TGA can conveniently and quickly complete the quantitative analysis of calcium carbonate in single calcium carbonate modified polypropylene and complex filled polypropylene materials.

关 键 词：热重分析法 复杂填充聚丙烯 碳酸钙 定量分析 

分 类 号：TQ325.14[化学工程—合成树脂塑料工业]