Preparation, characterization and crystallization kinetics of Kenaf fiber/multi-walled carbon nanotube/polylactic acid (PLA) green composites

被引：59

作者：

Chen, Po-Yuan ^{[1
]}

Lian, Hong-Yuan ^{[2
]}

Shih, Yeng-Fong ^{[1
]}

Chen-Wei, Su-Mei ^{[2
]}

Jeng, Ru-Jong ^{[3
]}

机构：

[1] Chaoyang Univ Technol, Dept Appl Chem, 168 Jifeng E Rd, Taichung 41349, Taiwan

[2] Ind Technol Res Inst, Div Appl Chem, Dept Adv Coating, Mat & Chem Res Labs, 321,Sec 2,Kuang Fu Rd, Hsinchu 30011, Taiwan

[3] Natl Taiwan Univ, Inst Polymer Sci & Engn, 1,Sec 4,Roosevelt Rd, Taipei 10617, Taiwan

来源：

MATERIALS CHEMISTRY AND PHYSICS | 2017年 / 196卷

关键词：

Kenaf fiber; Polylactic acid; Multi-walled carbon nanotubes; Annealing; POLY(LACTIC ACID); POLYLACTIC ACID; THERMAL-PROPERTIES; NATURAL FIBERS; MORPHOLOGY; CELLULOSE; TRANSCRYSTALLINITY; BIOCOMPOSITES; REINFORCEMENT; BEHAVIOR;

D O I：

10.1016/j.matchemphys.2017.05.006

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

In this study, chemically functionalized reinforcements, such as Kenaf fiber (KF) and multi-walled carbon nanotubes (MWCNTs), are used to enhance the crystallinity, mechanical properties and heat resistance of polylactic acid (PLA) composites. The functionalized KF and MWCNTs evidence excellent compatibility in the PLA matrix through the generation of chemical bonding, and a transcrystalline structure is generated around the reinforcements, thereby significantly improving the physical properties. The DSC analysis reveals that functionalized KF can speed up crystalline growth and increase the crystalline content. The annealing treatment further drives the PLA re-crystalization and enhances crystallinity, according to the DSC results. Moreover, the Avrami equation shows that the functionalized KF and MWCNTs are helpful in turning the PLA crystallinity from a 3-dimensional bulk (or sphere) structure into a 2-dimensional sheet structure. (C) 2017 Elsevier B.V. All rights reserved.

引用

页码：249 / 255

页数：7

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