Study on failure mechanism of bonding joint for plasma treated wood/pe composites under water soaking

被引：0
|
作者：
Key Laboratory of Bio-based Material Science and Technology , Northeast Forestry University, Harbin 150040, China [1 ]
机构：
[1] Key Laboratory of Bio-based Material Science and Technology (Ministry of Education), Northeast Forestry University
来源：
Jianzhu Cailiao Xuebao | 2012年 / 6卷 / 798-802期
关键词：
Failure mechanism; Plasma; Surface treatment; Water-resistance; Wood/PE composity;
D O I：
10.3969/j.issn.1007-9629.2012.06.013
中图分类号：
学科分类号：
摘要：
The surface of wood/polyethylene (PE) composites was treated by low-pressure glow discharge of air plasma to improve its adhesion properties. To explore the failure mechanism in the condition of water for the bonding joint of wood/PE composites, the water-resistance of plasma treated wood/PE composites bonding joint was studied and the effect of water on the surface properties of plasma treated wood/PE composites was investigated by using the analysis of contact angle, SEM and FT-IR. The results show that the contact angle increases firstly and then decreases with the soaking time extended, the water absorption for the composite increases and the surface for the sample become more and more rough. However, the number of -OH, C-O and C=O groups on the surface of plasma treated wood/PE composites decreases at first and then increases with the soaking time extended. And the failure mechanism in the condition of water for the bonding joint is related to the change on the surface roughness and chemical radicals for the surface of plasma treated wood/PE composites and the water absorption of the composites due to the soaking with water.
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页码：798 / 802
页数：4
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