低分子量酚醛树脂固体含量对浸渍改性马尾松的性能影响  

Effect of Phenol Formaldehyde Resin Solids Content on Properties of Impregnated Pinus massoniana Lumber

作　　者：王向歌[1] 金菊婉[1] 邓玉和[1] 庄寿增[1] 韩书广[1] 

机构地区：[1]南京林业大学材料科学与工程学院,江苏南京210037

出　　处：《木材工业》2014年第4期17-20,共4页China Wood Industry

基　　金："十二五"国家科技支撑计划"非常用与低等级木材高效加工技术集成与示范"(2012BAD24B01-04);江苏省高校优势学科建设工程资助项目;苏北科技发展计划-科技富民强县项目"低等级小径级速生杨木高效强化复合地板加工技术及产业化"(SBN201310202)

摘　　要：为改善马尾松木材的性能,采用低分子量酚醛(PF)树脂对其进行浸渍改性处理,考察了树脂不同的固体含量对马尾松性能的影响。结果表明:处理马尾松试样的密度增大,尺寸稳定性、静曲强度、弹性模量和硬度均有不同程度的提高,冲击韧性降低。Pinus massoniana lumber was impregnated with low molecular weight phenol formaldehyde resins, with different solids contents, to improve its physical and mechanical properties. A vacuum-pressure process was used to impregnate the lumber. The results showed that dimensional stability, modulus of rupture, modulus of elasticity and hardness of the test samples were all increased after impregnation with different concentrations of PF resin from 10% to 30%. However, toughness of the samples decreased as the resin weight gain increased.

关 键 词：马尾松 低分子量PF树脂 固体含量 尺寸稳定性 力学性能 

分 类 号：S781.82[农业科学—木材科学与技术]