Design and Development of Cellulosic Bionanocomposites from Forestry Waste Residues for 3D Printing Applications

被引：28
作者：
John, Maya Jacob [1 ,2 ]
Dyanti, Nokuzola [1 ,2 ]
Mokhena, Teboho [1 ]
Agbakoba, Victor [1 ,2 ]
Sithole, Bruce [3 ]
机构：
[1] Council Sci & Ind Res CSIR, Ctr Nanostruct & Adv Mat, POB 395, Pretoria, South Africa
[2] Nelson Mandela Univ, Dept Chem, POB 77000, Port Elizabeth, South Africa
[3] Council Sci & Ind Res CSIR, Biorefinery Ind Dev Facil BIDF, POB 59081, Durban, South Africa
来源：
MATERIALS | 2021年 / 14卷 / 13期
关键词：
cellulose nanofibres; biopolymer; bionanocomposites; 3D printing; POLY BUTYLENE SUCCINATE; POLY(LACTIC ACID); NANOCRYSTALS; NANOFIBERS; BLENDS; COMPOSITES; PLA;
D O I：
10.3390/ma14133462
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：
This paper deals with the development of cellulose nanofibres (CNFs) reinforced biopolymers for use in packaging applications. Cellulose nanofibres were extracted from sawdust by a combination of chemical and mechanical treatments. The extracted cellulose nanofibres were chemically modified (fCNFs) and characterised by Fourier Transform Infrared Spectroscopy (FTIR). Bionanocomposites were prepared from biopolymers polylactic acid/polybutylene succinate (PLA/PBS) and cellulose nanofibres by compounding in a twin-screw extruder followed by injection moulding. The developed bionanocomposites were subjected to mechanical and thermal characterisation. As part of product development, CNF-biopolymer pellets were also extruded into filaments which were then 3D printed into prototypes. This work is a successful demonstration of conversion of waste residues into value-added products, which is aligned to the principles of circular economy and sustainable development.
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页数：13
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