期刊
JOURNAL OF MACROMOLECULAR SCIENCE PART B-PHYSICS
卷 45, 期 6, 页码 1135-1140出版社
TAYLOR & FRANCIS INC
DOI: 10.1080/00222340600962650
关键词
poly(vinyl chloride)/calcium carbonate (PVC/CaCO3) composites; micrometer/nanometer filler; thermal stability
Poly(vinyl chloride)/calcium carbonate (PVC/CaCO3) composites with micrometer or nanometer CaCO3 as fillers were prepared by the solution blending method. The thermogravimetric analysis (TGA) of the composite films conducted in N-2 atmosphere showed that the addition of the CaCO3 fillers could improve their thermal stabilities. It was also found that the nanometer CaCO3 filler provided better thermal stabilities than the micrometer fillers even with a smaller amount. The mechanism of the improvements was investigated by a facile chemical analysis developed to examine the thermal stabilizing effect of calcium carbonate particles with different sizes in PVC/CaCO3 composites after the pyrolysis of the samples in an air atmosphere in an oven.
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