Processing and Characterization of Cellulose Nanocrystals/Polylactic Acid Nanocomposite Films

被引:84
|
作者
Sullivan, Erin M. [1 ]
Moon, Robert J. [1 ,2 ]
Kalaitzidou, Kyriaki [1 ,3 ]
机构
[1] Georgia Inst Technol, Sch Mat Sci & Engn, Atlanta, GA 30332 USA
[2] US Forest Serv, Forest Prod Lab, Madison, WI 53726 USA
[3] Georgia Inst Technol, George W Woodruff Sch Mech Engn, Atlanta, GA 30332 USA
来源
MATERIALS | 2015年 / 8卷 / 12期
关键词
cellulose nanocrystals; polylactic acid; nanocomposite film; MECHANICAL-PROPERTIES; POLYLACTIDE; COMPOSITES; PLA; CRYSTALLINE; MORPHOLOGY; BEHAVIOR;
D O I
10.3390/ma8125447
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
The focus of this study is to examine the effect of cellulose nanocrystals (CNC) on the properties of polylactic acid (PLA) films. The films are fabricated via melt compounding and melt fiber spinning followed by compression molding. Film fracture morphology, thermal properties, crystallization behavior, thermo-mechanical behavior, and mechanical behavior were determined as a function of CNC content using scanning electron microscopy, differential scanning calorimetry, X-ray diffraction, dynamic mechanical analysis, and tensile testing. Film crystallinity increases with increasing CNC content indicating CNC act as nucleating agents, promoting crystallization. Furthermore, the addition of CNC increased the film storage modulus and slightly broadened the glass transition region.
引用
收藏
页码:8106 / 8116
页数:11
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