The influence of fiber-surface treatment on the mechanical properties of jute-polypropylene composites
The influence of fiber-surface treatment on the mechanical properties of jute-polypropylene composites
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DOI：
10.1016/s1359-835x(97)00042-0
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发表时间：
1997-01-01
影响因子：
8.7
通讯作者：
Bledzki, AK
中科院分区：
文献类型：
--
作者：
Gassan, J;Bledzki, AK
本文讨论了 MAH-PP 共聚物（PP 和马来酸酐的接枝共聚物）作为黄麻-聚丙烯复合材料中偶联剂的有效性。纤维处理时间和MAH-PP浓度影响复合材料的力学性能。经过 MAH-PP 处理的纤维的复合材料的弯曲强度高于未改性纤维，并且随着纤维负载量的增加而增加。负载增加时的循环动态值表明偶联剂减少了损坏的进展。因此，MAH-PP改性复合材料的动态强度（负载增加试验中的动态失效应力）提高了约40%。 SEM 研究证实，性能的提高是由于纤维基体粘合力的提高所致。纤维从基质中拉出的倾向较小。 (C) 1997 年由爱思唯尔科学有限公司出版。
This article concerns the effectiveness of MAH-PP copolymers (graft copolymer of PP and maleic anhydride) as coupling agents in jute-polypropylene composites. The fiber treatment time and the MAH-PP concentration influenced the mechanical properties of the composites. Flexural strength of the composites with MAH-PP treated fibers was higher than that of unmodified fibers, and increased with fiber loading. The cyclic-dynamic values at an increasing load indicated that the coupling agent reduces the progress of damage. Dynamic strength (dynamic failure stress at load increasing test) of the MAH-PP modified composites is therefore raised by about 40%. SEM investigations confirm that the increase in properties is caused by improved fiber-matrix adhesion. There was less inclination for fibers to pull out of the matrix. (C) 1997 Published by Elsevier Science Limited.