Influence of nanofibrillated cellulose on the mechanical and thermal properties of poly(lactic acid)

被引：33

作者：

Peric, Matea ^{[1
]}

Putz, Robert ^{[1
]}

Paulik, Christian ^{[2
]}

机构：

[1] Kompetenzzentrum Holz GmbH, Wood K Plus Competence Ctr Wood Composites & Wood, Altenberger Str 69, A-4040 Linz, Austria

[2] Johannes Kepler Univ Linz, Inst Chem Technol Organ Mat, Altenberger Str 69, A-4040 Linz, Austria

来源：

EUROPEAN POLYMER JOURNAL | 2019年 / 114卷

关键词：

Poly(lactic acid); Nanofibrillated cellulose; Nanocomposites; HOMOGENEOUS ISOLATION; NANOCELLULOSE; COMPOSITES; BEHAVIOR; FIBERS; PULP;

D O I：

10.1016/j.eurpolymj.2019.03.014

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

In this work, we used a twin-screw extruder - as an alternative to other, more energy-intensive mechanical methods - to produce nanofibrillated cellulose. Scanning electron microscopy and thermogravimetric analysis were employed to determine morphology and thermal properties of the nanofibrillated cellulose. Further, we prepared poly(lactic acid)/nanofibrillated cellulose (PLA/NFC) composites by melt blending followed by injection molding, and subsequently characterized them using mechanical testing, size exclusion chromatography and differential scanning calorimetry. Our results showed that nanofibrillated cellulose produced in a twin-screw extruder can be used as reinforcement for poly(lactic acid). Adding only 5 wt% nanofibrillated cellulose yielded improvements in the crystallization behavior of PLA. An increase in elastic modulus was observed for all PLA/NFC composites compared to neat PLA.

引用

页码：426 / 433

页数：8

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