Effect of a two step fiber treatment on the flexural mechanical properties of sisal-polyester composites

被引：12

作者：

Calado, V

Barreto, DW

d'Almeida, JRM

机构：

[1] Univ Fed Rio de Janeiro, Escola Quim, Ctr Tecnol, Rio De Janeiro, Brazil

[2] Pontificia Univ Catolica Rio de Janeiro, Dept Mat Sci & Met, BR-22453900 Rio De Janeiro, RJ, Brazil

来源：

POLYMERS & POLYMER COMPOSITES | 2003年 / 11卷 / 01期

关键词：

D O I：

10.1177/096739110301100104

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Sisal fibers were chemically treated with a two-step treatment (first sodium sulfide aqueous solution and then acetic anhydride/acetic acid mixture) to promote better adhesion to a polyester resin matrix. The flexural behaviour of the composites was analyzed as a function of the time of immersion in distilled water, and there was an improvement for short times of immersion. The long term behaviour of the treated composites was, however, no better than that of the untreated ones. This could be because of the controlling role of plasticization of both the fibers and the resin matrix for the longer times of immersion.

引用

页码：31 / 36

页数：6