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Flame Retardancy and Thermal Properties of PVC/ATH Composites Prepared by a Modular Intermeshing Co-rotating Twin Screw Extruder
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  • Journal title : Elastomers and Composites
  • Volume 51, Issue 2,  2016, pp.147-153
  • Publisher : The Rubber Society of Korea
  • DOI : 10.7473/EC.2016.51.2.147
 Title & Authors
Flame Retardancy and Thermal Properties of PVC/ATH Composites Prepared by a Modular Intermeshing Co-rotating Twin Screw Extruder
Lee, Hyeongsu; Park, Se-Ho; Lee, Jae-Yeul; Park, Yuri; Jeong, Hobin; Jhee, Kwang-Hwan; Bang, Daesuk;
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 Abstract
Polyvinyl chloride (PVC) has been used as a general-purpose polymer because of its lower cost, good durability and mechanical properties compared to other materials. However, PVC is vulnerable to heat deformation and generates a toxic gas like hydrogen chloride. Therefore, it is important to delay or prevent the flame retardancy and thermal degradation of the PVC during the processing. It was reported that aluminum trihydroxide (ATH) improved flame retardancy as well as smoke inhibition of the virgin polymer. In this study, PVC composites by addition of ATH were compounded in a modular intermeshing co-rotating twin screw extruder. The PVC composites with different concentrations of ATH (0~5 phr) were analyzed. Flame retardancy of the PVC composite significantly increased depending on the ATH concentration. LOI of the composite also increased with the concentration of ATH. There were no significant differences for the thermal properties of the PVC composites with ATH.
 Keywords
flame retardant;aluminum trihydroxide;PVC composite;limiting oxygen index;twin screw extruder;
 Language
Korean
 Cited by
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