Effect of Extractives on Water Sorption and Durability of Wood-Plastic Composites
Effect of Extractives on Water Sorption and Durability of Wood-Plastic Composites
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DOI：
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发表时间：
2009-07
影响因子：
1.4
通讯作者：
Jae-Woo Kim;D. Harper;Adam M. Taylor
中科院分区：
文献类型：
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作者：
Jae-Woo Kim;D. Harper;Adam M. Taylor
采用等规聚丙烯和四种不同木材中的一种的提取和未提取的粉末制成木塑复合材料（WPC）。除松树WPC外，用提取木粉制成的WPC的机械性能低于未提取的WPC。对于所有的物种，除了松树，WPC与提取木粉表现出较高的吸湿性和厚度膨胀特性。对于用提取的木材制成的WPC，观察到更高水平的真菌腐烂，除了松树WPC，其中提取的木材样品中褐腐的真菌腐烂较低。这些结果表明，木材提取物影响木塑复合材料的力学性能，吸水性和抗真菌腐烂。
Wood—plastic composites (WPCs) were made from isotactic polypropylene and extracted and unextracted flours of one of four different wood species. WPCs made with extracted wood flour had lower mechanical properties than unextracted WPCs with the exception of pine WPCs. For all of the species except pine, WPCs made with extracted wood flours showed higher moisture sorption and thickness swelling characteristics. Higher levels of fungal decay were observed for the WPCs made with extracted wood, except for the pine WPCs, in which there was lower fungal decay from brown rot in the extracted wood samples. These results demonstrate that wood extractives affect the mechanical properties, water sorption, and fungal decay resistance of WPCs.