1841 ポリ乳酸樹脂の機械的性質に及ぼす熱処理の影響(G03-6 生体材料・プラスチック,G03 材料力学)

概要

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Polylactide (PLA) is biodegradable and has relatively high strength in biodegradable plastics. Therefore, if PLA is reinforced, PLA has possibility to use as green plastics for industries. In this study, the purpose was to try to improve the mechanical property of PLA by crystallization with heat treatment. Mechanical properties were evaluated by static bending properties. At first, crystallinity adjustment method was established by isothermal crystallization. Consequently, as crystallinity was increased, the static bending properties were improved. However, static bending properties differed on the same crystallinity materials. Then, crystalline structure was observed using electron microscope, it was clarified that crystalline size varied according to heat treatment temperature. As a result, as heat treatment temperature increased, particle size of crystal was increased.
一般社団法人日本機械学会の論文
2005-09-18