スズキ　コウジ   KOHJI SUZUKI   鈴木　浩治    所属   千葉工業大学  工学部 機械工学科    千葉工業大学  工学研究科 工学専攻    千葉工業大学  工学研究科 機械工学専攻    職種   教授
言語種別	英語
発行・発表の年月	2013/05
形態種別	学術雑誌
査読	査読あり
標題	A Study on Mechanical Properties of Short Kenaf Fiber Reinforced Polylactide (PLA) Composites
執筆形態	単著
掲載誌名	Journal of Solid Mechanics and Materials Engineering
出版社・発行元	Japan Society of Mechanical Engineers
巻・号・頁	7(3),pp.439-454
著者・共著者	Kohji Suzuki
概要	In the present paper, short fibers extracted from kenaf (Hibiscus cannabinus L.) were used for composite reinforcement of poly(lactic acid) (PLA) or simply polylactide. As the present molding process, twin-bladed melt mixing followed by hot-pressing was chosen with fiber weight fractions varied up to 20wt% by 5wt% increment. Tensile strength and strain at break of the composites were found to decrease as compared to those of neat PLA. On the other hand, the tensile moduli both at initial and at several stress levels up to the final breakage were found to be improved via kenaf fiber loading. Two-parameter Weibull plots in terms of tensile strength and SEM fractography of the fractured surfaces were also examined. Finally, three-point bending strength, Charpy impact toughness, plain strain fracture toughness and S-N fatigue curves for the present composites were also shown and discussed.
DOI	10.1299/jmmp.7.439