酚醛树脂改性速生杨木耐腐性能研究  被引量:12

Study on anti-decay ability of modified fast-grown poplar with phenol-formaldehyde resin

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作  者:岳孔[1] 夏炎[1] 张伟[1] 许俊[1] 卢晓宁[1] 

机构地区:[1]南京林业大学木材工业学院,江苏南京210037

出  处:《福建林学院学报》2008年第2期164-168,共5页Journal of Fujian College of Forestry

基  金:江苏省科技攻关科学基金资助项目(BE2005355)

摘  要:未经任何处理的杨木素材试件,耐腐性能较差,经低分子酚醛树脂浸渍处理后,试件的耐腐性能明显地提高。腐朽试验结果表明,在所选试验条件下,仅8周时间,素材的失重率就达9.52%之多,而当浸以低分子酚醛树脂后,同等条件下试件的失重率均小于2%。当处理材增重率为14.2%时,其失重率最小,腐朽前后试件表面的颜色变化也证实了这一点。试验结果表明,在所选试验条件下,低分子酚醛树脂处理后,速生杨木的耐腐性能改善效果明显。The natural anti-decay ability of untreated poplar samples was quite poor, while the performance of those samples modified with low molecule phenol-formaldehyde resin (PF) could be enhanced distinctly. 8 weeks later, weight percent losses (WPL) of untreated samples reached 9.52%, WPL of treated samples was all less than 2% , and could be the lowest when the weight percent gains were adopted at the level of 14.2%. The color change of modified and un-moditled samples validated this point further. The conclusions could be drawn that the anti-decay ability of fast-grown poplar modified with PF could be improved clearly.

关 键 词:酚醛树脂 浸渍 失重率 耐腐性能 

分 类 号:S781.7[农业科学—木材科学与技术]

 

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