PLA/PBS/天然繊維複合材の機械的物性に及ぼす充填材の影響

概要

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The polymer alloying of the PLA and PBS was conducted in order to improve the brittleness in a biodegradable polymer PLA (Polylactic Acid) and the softness in PBS (Polybutylene Succinate). The PLA/PBS polymer alloy composites filled with natural fibers (NF) such as the conifer fiber (ConF), kozo fiber (KozF), and silk fiber (SilF) were produced. Various mechanical properties of the PLA/PBS polymer alloy and PLA/PBS/NF composites were investigated experimentally. The results of examinations showed that the PLA/PBS is a compatible polymer alloy. Hence, the mechanical properties such as the tensile strength and elongation rate of the PLA/PBS polymer alloy depend on the mixture ratio which linearity, thus the additive property is consistent. The rigidity of PLA/PBS/NF polymer alloy composites increased due to NF; the tensile modulus increased and the elongation ratio decreased. These mechanical properties varied depending on the natural fibers used. Especially, the Izod impact value increased with the increase in the amount of natural fibers. It was understood that this is due to the absorption of the impact energy.
工学院大学の論文