Development and characterization of bionanocomposites based on poly(3-hydroxybutyrate) and cellulose nanocrystals for packaging applications

被引：45
作者：
Seoane, Irene T. [1 ]
Fortunati, Elena [2 ]
Puglia, Debora [2 ]
Cyras, Viviana P. [1 ]
Manfredi, Liliana B. [1 ]
机构：
[1] UNMdP, Fac Ingn, Inst Invest Ciencia & Tecnol Mat INTEMA, CONICET, Ave Juan B Justo 4302,B7608FDQ, Mar Del Plata, Buenos Aires, Argentina
[2] Univ Perugia, Civil & Environm Engn Dept, UdR INSTM, Str Pentima 4, I-05100 Terni, Italy
来源：
POLYMER INTERNATIONAL | 2016年 / 65卷 / 09期
关键词：
cellulose nanocrystals; poly(3-hydroxybutyrate); biodegradable polymers; nanocomposites; POLY(3-HYDROXYBUTYRATE-CO-3-HYDROXYVALERATE)/CELLULOSE NANOWHISKERS COMPOSITES; PLA NANO-BIOCOMPOSITES; SILVER NANOPARTICLES; THERMAL-PROPERTIES; POLYHYDROXYBUTYRATE PRODUCTION; BIODEGRADABLE COMPOSITES; MIGRATION PROPERTIES; BARRIER PROPERTIES; MELTING BEHAVIOR; PHB BLENDS;
D O I：
10.1002/pi.5150
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
Poly(3-hydroxybutyrate) (PHB)-based bionanocomposites were prepared using various percentages of cellulose nanocrystals (CNCs) by a solution casting method. CNCs were prepared from microcrystalline cellulose using sulfuric acid hydrolysis. The influence of CNCs on PHB properties was evaluated using differential scanning calorimetry, Fourier transform infrared spectroscopy, X-ray diffraction, thermogravimetry and tensile testing. Vapor permeation and light transmission of the materials were also measured. Differential scanning calorimetric tests demonstrated that CNCs were effective PHB nucleation agents. Tensile strength and Young's modulus of PHB increased with increasing CNC concentration. Moreover, the PHB/CNC bionanocomposites exhibited reduced water vapor permeation compared to neat PHB and had better UV barrier properties than commodity polymers such as polypropylene. It was found that nanocomposites with 6wt% of CNCs had the optimum balance among thermal, mechanical and barrier properties. (c) 2016 Society of Chemical Industry
引用
收藏
页码：1046 / 1053
页数：8
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