Thermal properties of high density polyethylene composites with natural fibres: Coupling agent effect

被引:262
作者
Araujo, J. R. [1 ]
Waldman, W. R. [2 ]
De Paoli, M. A. [1 ]
机构
[1] Univ Estadual Campinas, Inst Quim, BR-13084970 Campinas, SP, Brazil
[2] Univ Estadual Norte Fluminense, Lab Ciencias Quim CCT, BR-28013602 Rio De Janeiro, RJ, Brazil
基金
巴西圣保罗研究基金会;
关键词
Natural fibre composites; Extrusion; Thermal stability; Polyethylene; Natural fibres;
D O I
10.1016/j.polymdegradstab.2008.07.021
中图分类号
O63 [高分子化学(高聚物)];
学科分类号
070305 ; 080501 ; 081704 ;
摘要
High density polyethylene composites with curaua fibres Were prepared using an intermeshing co-rotating extruder and two different coupling agents. The thermal stability of the components was studied by thermogravimetric and differential scanning analysis, as well as by the oxidation induction time. Maleic anhydride grafted polyethylene, used as coupling agent, affected the composite stability more markedly than did poly(ethylene-co-vinyl acetate). However, oxidation induction times were analogous for composites with and without coupling agents. Results also indicated that a higher fibre-matrix interaction precludes the crystallinity enhancement caused by the fibre. (C) 2008 Elsevier Ltd. All rights reserved.
引用
收藏
页码:1770 / 1775
页数:6
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