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木纤维的表面特性

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为了考察木纤维的表面特性,通过测取接触角和计算回归相结合的方法,研究了木纤维的表面张力以及在不同温度下的变化趋势.结果表明:在25℃时,杉木、杨木和竹木纤维表面张力分别为46.75、40.01和31.01 mJ/m~2.经高温处理后,杨木纤维和竹木纤维的下降幅度较大,分别下降了16.39%和14.16%;而且,木纤维表面张力的极性部分均有较大幅度的下降.表明高温处理后的木纤维更适合制备木塑复合材料.
Characteristics of Wood Fiber Surface
To study the characteristics of the surface of wood fibers.including the surface tension and its variation at different temperatures,contact angles have been measured and regression has been theoretically calculated.Results show that the surface tension of fir,poplar and bamboo wood fibers at 25℃ is 46.75,40.01 and 31.01mJ/m~2,respectively.After high temperature treatment,the surface tension of poplar and bamboo wood fibers drops largely,by 16.39%and 14.16%respectively.Moreover,the polarities of surface tension of wood fibers decline greatly,which indicates that wood fibers after high temperature treatment are more suitable for preparation of wood-plastic composites.

wood-plastic compositeswood fibersurface tension

丁辉、姚鹏、张然、徐世民

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天津大学化工学院,天津,300072

天津大学精馏技术国家工程研究中心,天津,300072

木塑复合材料 木纤维 表面张力

天津市科技计划资助项目

07ZCKFSH02200

2010

天津大学学报
天津大学

天津大学学报

CSTPCDCSCD北大核心EI
影响因子:0.793
ISSN:0493-2137
年,卷(期):2010.43(2)
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