Improvement in the mechanical properties of polylactide and bamboo fiber biocomposites by fiber surface modification

Macromolecular Research - Tập 19 - Trang 789-796 - 2011
Jun Tae Kang1, Seong Hun Kim1
1Department of Organic and Nano Engineering, College of Engineering, Hanyang University, Seoul, Korea

Tóm tắt

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 °C compared to the PLA composite containing pristine bamboo fiber (210–430 °C). 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.

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Thông tin
Thông tin xuất bản

Macromolecular Research

Tập 19

789-796

Thông tin tác giả