Preparation and Properties of -Cellulose Short Fiber-Reinforced Poly(lactic Acid) Composites

作者：Wu Jyh Hong; Kuo M C^*; Chen Chien Wen; Chen Chen Wei; Hsu Yu Lun; Kuan Ping Hung; Lee Kuan Yu; Fang Kuan Ting; He Jhih Hong

来源：Polymer - Plastics Technology and Engineering, 2013, 52(9): 877-884.

DOI：10.1080/03602559.2013.763365

• Biodegradable
• Composites
• Extrusion
• Fibers

The objective of this study is to fabricate the PLA/-cellulose composites and to investigate the effect of -cellulose short fibers on the toughness improvement of PLA. To homogeneously disperse the polar -cellulose in the non-polar PLA matrix, the as-received -cellulose was subjected to surface modification using stearic acid to impart the hydrophobic characteristics to the short fibers. The -cellulose fibers dispersed more homogeneously in PLA through this modification, and consequently, the fiber pull-out and longer micro-crack length could improve the toughness and damping property of the resulting PLA composites. The inclusion of -cellulose short fibers considerably decreased the spherulite dimension of the PLA/-cellulose composites to accommodate larger deformation through grain boundary sliding. The PLA/-cellulose composite improved its toughness by three times that of the neat PLA with low -cellulose content (approximate to 4wt.%), and maintained its transparency.

• 出版日期2013-7-15