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http://dx.doi.org/10.7234/composres.2013.26.3.170

Study of Plasma Polymerization on Wood Powder/PP Composites Interface  

Ha, Jong-Rok (한국기계연구원 부설 재료연구소 복합재료센터)
Kim, Byung Sun (한국기계연구원 부설 재료연구소 복합재료센터)
Yi, Jin Woo (한국기계연구원 부설 재료연구소 복합재료센터)
Publication Information
Composites Research / v.26, no.3, 2013 , pp. 170-174 More about this Journal
Abstract
Atmospheric glow plasma polymerization was applied to wood powder before fabricating polypropylene (PP) matrix composites. Seven different types of monomers (Oxygen, Benzene, CH4, Acrylic-acid, Hexafluoroethane, Trifluorotolune, Hexamethyl-disiloxane) were analyzed to determine the most suitable precursor for plasma polymerization. The surface energy was calculated from measured contact angle about each monomer on PP. Hexamethyl-disiloxane (HMDSO) had a highest surface energy and is selected as the most suitable monomer. Wood powder and polypropylene were mixed as pellets by twin screw extruder and then 50 wt% wood powder/PP composites were produced by an injection machine. Tensile strength and Flexural strength have improved by 7.59% and 12.43% at the maximum respectively. SEM (Scanning Electron Microscope) observation on the fracture surface revealed that the plasma polymerization have improved the interfacial bonding and the mechanical properties of the composites.
Keywords
plasma; WPC(wood plastic composite); wood powder; Hexamethlydisiloxane;
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