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Mechanical Properties of PVC Complexes Using Waste-Gypsum (I)  

Ho, Dong-Su (Department of Chemistry, Sunchon National University)
Park, Young-Hoon (Department of Polymer Science and Engineering, Sunchon National University)
Nah, Jae-Woon (Department of Polymer Science and Engineering, Sunchon National University)
Choi, Chang-Yong (Department of Polymer Science and Engineering, Sunchon National University)
Kim, Myung-Yul (Department of Polymer Science and Engineering, Sunchon National University)
Publication Information
Elastomers and Composites / v.37, no.1, 2002 , pp. 7-13 More about this Journal
Abstract
In this study, mechanical properties of PVC complexes containing the gypsum (Namhae Chemical Co.) which contains phosphte, CaO, etc., Pb-species stabilizer, and $CaCO_3$ were investigated as a function or the content. As a result, mechanical properties increased when the gypsum was mixed with PVC at the extent of 8.46wt%. From this result, it is suggested that the gypsum containing phosphate and CaO is compatible with PVC. Thermogravimetric analysis(TGA) showed that pyrolysis started about at $275^{\circ}C$, and residual weight(%) increased with the amount of the gypsum, and differential scanning calorimetry (DSC) showed that $T_m,\;T_g$ had the maximum and minimum value respectively when the gypsum was mixed with PVC at the extent of 8.46wt%. Comparing all the results, both mechanical and thermal properties of PVC complex were improved. The X-ray diffraction measurement also showed their blonds and structures.
Keywords
PVC complexes; gypsum; Properties; compatible; blends;
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