Long-term water uptake behavior of lignocellulosic-high density polyethylene composites

被引：0

作者：

Najafi, Saeed Kazemi ^{[1
]}

Tajvidi, Mehdi ^{[2
]}

Chaharmahli, Majid ^{[1
]}

机构：

[1] Department of Wood and Paper Science and Technology, College of Natural Resources and Marine Sciences, University of Tarbiat Modares, Noor, Iran

[2] Department of Wood and Paper Science and Technology, College of Natural Resources, University of Tehran, Karaj, Iran

来源：

Journal of Applied Polymer Science | 2006年 / 102卷 / 04期

关键词：

Composites of different lignocellulosic materials and high-density polyethylene were prepared and their long-term water absorption behaviors were studied. Wood flour; rice hulls; newsprint fibers; and kenaf fibers were mixed with the polymer at 25 and 50 wt % fiber contents and 1 and 2% compatibilizer; respectively. Water absorption tests were carried out on injection-molded specimens at room temperature for five weeks. Results indicated a significant difference among different natural fibers with kenaf fibers and newsprint fibers exhibiting the highest and wood flour and rice hulls the lowest water absorption values; respectively. Very little difference was observed between kenaf fiber and newsprint composites and between rice hulls and wood flour composites regarding their water uptake behavior. The difference between 25 and 50% fiber contents for all composite formulations increased at longer immersion times; especially for the composites with higher water absorption. Kenaf fiber composites containing 50% kenaf fibers exhibited the highest water diffusion coefficient. A strong correlation was found between the water absorption and holocellulose content of the composites. © 2006 Wiley Periodicals; Inc;

D O I：

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学科分类号：

摘要：

Journal article (JA)

引用

页码：3907 / 3911

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