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表面膜對點陣結(jié)構(gòu)Ti6Al4V表面超疏水特性的影響
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國家自然科學(xué)基金 (50975036)；遼寧省自然科學(xué)基金 (20082143)；遼寧省教育廳重點實驗室項目 (20088029)


Effects of Surface Film on Superhydrophobic Characteristics of Ti6Al4V with Dotted Matrix Structure
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    摘要:

    采用激光加工在Ti6Al4V試樣表面加工不同間距的點陣結(jié)構(gòu)，采用自組裝技術(shù)制備4種自組裝分子膜。通過表面形貌和接觸角的測量表征試樣的表面特性。 結(jié)果表明：通過激光點陣加工和沉積自組裝分子膜，可顯著增加Ti6Al4V試樣的水接觸角。長鏈分子FDTS、FOTS和OTS制備的自組裝分子膜，使Ti6Al4V試樣的接觸角均大于150°，形成超疏水表面，其中沉積FDTS自組裝分子膜時，試樣的接觸角最大，可達(dá)164.5°。沉積短鏈分子MPS自組裝分子膜時，只有當(dāng)激光加工間距為50 μm時，試樣方可形成超疏水表面；間距增大后，試樣表面變成疏水表面。沉積4種自組裝分子膜時，試樣的接觸角均隨激光點陣加工間距的增大而減小

    Abstract:

    The dotted matrix structures on Ti6Al4V specimens with different spacing were manufactured by laser technology. Four kinds of self-assembled monolayers (SAMs) were prepared on the above Ti6Al4V substrates by self-assembled technique. The surface characteristics of Ti6Al4V specimens were characterized with topography and contact angle measurement. The results show that the water contact angles of the Ti6Al4V specimens increase significantly by dotted matrix structure manufacturing and SAMs deposition. The contact angles of the Ti6Al4V specimens deposited with long chain molecules of FDTS, FOTS and OTS are larger than 150° and the superhydrophobic surfaces are formed. The maximum contact angle of 164.5° can be acquired when FDTS SAMs are deposited on the Ti6Al4V specimens. The superhydrophobic surface of the Ti6Al4V specimens can be formed for short chain MPS molecule deposition only when the spacing of laser manufacturing is set to 50 μm. The superhydrophobic surface will change to the hydrophobic surface with spacing increasing. The contact angles of the Ti6Al4V specimens for all four SAMs deposition reduce with increasing of the spacing of dotted matrix

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連 峰,張會臣,龐連云,朱海波.表面膜對點陣結(jié)構(gòu)Ti6Al4V表面超疏水特性的影響[J].稀有金屬材料與工程,2012,41(4):612~616.[Lian Feng, Zhang Huichen, Pang Lianyun, Zhu Haibo. Effects of Surface Film on Superhydrophobic Characteristics of Ti6Al4V with Dotted Matrix Structure[J]. Rare Metal Materials and Engineering,2012,41(4):612~616.]
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  • 收稿日期:2011-04-01
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