类水稻叶多尺度表面构筑与各向疏水性

发布时间：2018-04-18 06:20

  本文选题：超疏水 + 多尺度　； 参考：《科学通报》2017年16期

【摘要】：采用高速电火花线切割加工方法与电刷镀工艺结合在铝合金表面构筑了类水稻叶多尺度层级结构表面.利用扫描电子显微镜(SEM)、激光共聚焦显微镜(LSCM)、X射线衍射仪(XRD)和接触角测量仪表征表面的形貌结构、物相组成和润湿特性.结果表明,电刷镀获得的双尺度(微-纳米)微观结构对表面疏水性起关键作用,而高速电火花线切割加工获得的规则排列亚毫米级槽棱结构进一步放大了其平槽方向表面的疏水性能,使其未经任何化学修饰即获得优异的超疏水特性,接触角可以达到151°,且展现平槽和垂槽方向不同的疏水特性.这一研究将对各向异性功能材料结合超疏水材料的应用起到一定的指导意义.
[Abstract]:The multi-scale hierarchical structure surface of rice leaves was constructed on the surface of aluminum alloy by high speed WEDM and brush plating.Scanning electron microscopy (SEM), laser confocal microscope (LSCM) and X-ray diffractometer (XRD) were used to measure the surface morphology, phase composition and wetting properties of the instrument.The results show that the microstructures obtained by brush plating play a key role in surface hydrophobicity.The regular arrangement of submillimeter grooves obtained by high speed WEDM further magnifies the hydrophobicity of the surface of the flat groove, making it obtain excellent superhydrophobic properties without any chemical modification.The contact angle can reach 151 掳, and the hydrophobic characteristics of flat groove and vertical groove are different.This study will play a guiding role in the application of anisotropic functional materials combined with super hydrophobic materials.
【作者单位】： 长春理工大学机电工程学院;
【基金】：国家自然科学基金(51505039) 吉林省科技发展计划(20150204018GX) 中国博士后科学基金(2014M551145)资助
【分类号】：TG178
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本文编号：1767159