Production and Modification of Cellulose Nanocrystals from Camellia oleifera Fruit Shells and Its Effect on the Mechanical Properties of Poly(lactic acid)

被引：2
作者：
Shi, Junhua [1 ]
Yao, Jin [1 ]
Li, Zhihan [2 ,3 ,4 ]
Zeng, Guangsheng [2 ,3 ,4 ]
Zhu, Heping [1 ]
机构：
[1] Hunan Univ Technol, Sch Packaging Design & Art, Zhuzhou 412007, Peoples R China
[2] Hunan Univ Technol, Hunan Key Lab Biomass Fiber Funct Mat, Zhuzhou 412007, Peoples R China
[3] Hunan Univ Technol, Sch Packaging & Mat Engn, Zhuzhou 412007, Peoples R China
[4] Hunan Univ Technol, Hunan Int Sci & Technol Innovat Cooperat Base Bio, Zhuzhou 412007, Peoples R China
来源：
NANOSCIENCE AND NANOTECHNOLOGY LETTERS | 2019年 / 11卷 / 03期
基金：
中国国家自然科学基金;
关键词：
Cellulose Nanocrystals; Surface Modification; Poly(lactic acid) Composites; Mechanical Properties; SURFACE MODIFICATION; DRUG-RELEASE; NANOCELLULOSE; GREEN; FILMS; NANOCOMPOSITES; REINFORCEMENT; FABRICATION; SCAFFOLDS; RAPAMYCIN;
D O I：
10.1166/nnl.2019.2894
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
In this study, biodegradable polylactic acid (PLA) composite films reinforced with cellulose nanocrystals (CNCs) were produced by solvent casting. The CNCs extracted from Camellia oleifera fruit shells (COFS) were modified with butyric anhydride and their physical properties were studied. The resultant butyrated cellulose nanocrystals (BCNCs) showed improved dispersion in organic solvents compared with CNCs. These BCNCs were subsequently introduced into PLA matrix to produce fully biodegradable film. The prepared PLA/BCNCs composites exhibited a comprehensive improvement in both tensile and thermomechanical performance, which was primarily attributed to the uniform dispersion of the BCNCs and the strong interfacial adhesion between filler and matrix. The resultant high performance and ecofriendly composites will expand the utilization of CNCs from renewable bioresources and the practical application of PLA-based products.
引用
收藏
页码：428 / 433
页数：6
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