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OALib Journal期刊
ISSN: 2333-9721
费用：99美元
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界面效应对小球藻在钛合金表面附着的影响
DOI: 10.11900/0412.1961.2014.00159, PP. 1146-1152
Keywords: 疏水,超疏水,钛合金,小球藻,附着
Abstract:
采用激光刻蚀技术在钛合金表面分别构筑网格、直线、点阵3种微结构,采用溶胶-凝胶法将纳米SiO2粒子涂覆在微结构上,制备分别具有微结构/微纳结构的疏水/超疏水表面.利用小球藻附着面积评价表面的抗海洋生物附着性能,利用动态冲刷实验评价小球藻的附着强度.结果显示具有微结构的疏水/超疏水表面符合Wenzel模型,具有微纳结构的超疏水表面符合Cassie模型,且其表面抗附着性能更优,附着强度更小;网格表面的超疏水自清洁性能最强,抗附着性能最优,附着强度最小,其次是直线,再次是点阵;随着微结构间距的增大,接触角减小,滚动角增大,抗附着性能降低,附着强度增大.
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