화학공학소재연구정보센터
홈 로그인 로그아웃 연락처 사이트맵
Macromolecular Research, Vol.19, No.8, 789-796, August, 2011
DOI10.1007/s13233-011-0807-y  Export Citation
Improvement in the Mechanical Properties of Polylactide and Bamboo Fiber Biocomposites by Fiber Surface Modification
Jun Tae Kang, and Seong Hun Kim†
  • Department of Organic and Nano Engineering, College of Engineering, Hanyang University, Seoul, 133-791, Korea
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Polylactide (PLA)/bamboo fiber biocomposites treated with an alkali solution and a silane coupling agent were prepared by melt compounding. The PLA composite containing delignified bamboo fibers showed a narrow decomposition range of 300-400 ℃ compared to the PLA composite containing pristine bamboo fiber (210-430 ℃). The tensile and flexural moduli of the treated PLA/bamboo fiber composite increased with increasing bamboo fiber content. The tensile and flexural moduli of a PLA/bamboo fiber composite treated with an alkali solution was higher than that of a PLA/bamboo fiber composite containing pristine bamboo fibers. The PLA/bamboo fiber biocomposites treated with an alkali solution and a silane coupling agent exhibited higher tensile and flexural strength than a PLA composite containing pristine bamboo fibers, and the tensile strength was twice that of the PLA composite containing untreated bamboo fibers. This enhancement in the mechanical properties was attributed to surface modification and improvement of the interfacial adhesion between the PLA matrix and bamboo fibers.
Keywords:bamboo fiber;polylactide;biodegradable composite;biocomposites.
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