Interactions between PLA, PE and wood flour: effects of compatibilizing agents and ionic liquids

被引：14

作者：

Quitadamo, Alessia ^{[1
,2
]}

Massardier, Valerie ^{[1
]}

Valente, Marco ^{[2
]}

机构：

[1] Univ Lyon 69003, INSA Lyon, Ingn Mat Polymeres CNRS UMR 5223, F-69621 Villeurbanne, France

[2] Univ Roma La Sapienza, Dept Chem & Mat Engn, Via Eudossiana 18, I-00184 Rome, Italy

来源：

HOLZFORSCHUNG | 2018年 / 72卷 / 08期

关键词：

biopolymer; compatibilizing agents; differential scanning calorimetry (DSC); interface; ionic liquid (IL); mechanical properties; poly(lactic acid) (PLA); thermogravimetric analysis (TGA); wood flour; wood plastic composite (WPC); GREEN COMPOSITES; MECHANICAL-PROPERTIES; THERMAL-PROPERTIES; POLY(LACTIC ACID); NATURAL FIBERS; PLASTICIZERS; FILMS; POLYLACTIDE; SALTS; SIZE;

D O I：

10.1515/hf-2017-0149

中图分类号：

S7 [林业];

学科分类号：

0829 ; 0907 ;

摘要：

The differences in hydrophilicity are a main drawback for wood polymer composites (WPCs). This work aims at compatibilizing bio-derived poly(lactic acid) (PLA), high density polyethylene (PE) and wood fibers (\Ws) with either functional PEs [PE-graft-maleic anhydride (MA) (Polybond 3029) or random copolymer of ethylene and glycidyl methacrylate (PE-g-GMA) (Lotader AX8840)] or trihexyl(tetradecyl)phosphonium bistriflamide ionic liquid (IL). The interactions and possible chemical reactions between PLA and functional PE or IL were studied including their mechanical properties. PE-gGMA significantly increased elongation at break of PLA. According to scanning electron microscopy (SEM), the latter also displays good compatibility with WF. Addition of IL plastifies PLA without degrading it and improves the thermal stability of WF.

引用

页码：691 / 700

页数：10

共 60 条

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