电场对FOTS自组装分子膜/SiO_2界面作用特性的影响:《大连海事大学学报》2011年02期

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$u1~]%kW0电场对FOTS自组装分子膜/SiO_2界面作用特性的影响

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5dbEOj7bnE q0【摘要】:为研究电场对自组装分子膜摩擦学特性的影响,采用分子动力学模拟软件Materials Studio5.0计算不同电场强度和作用方向下FOTS自组装分子膜与SiO2基底的界面结合能.结果表明:当电场强度小于3.0×108V/m时,施加正负方向电场,界面结合能均增大,而施加正电场的界面结合能增大较多,但在正负方向电场作用下界面结合能随着场强的增加变化幅度较小.对FOTS与SiO2基底相互作用能的分析得知,影响体系结合能的主要因素是两者之间的范德华力,其中色散力起主要作用.水利论文E0e*Xn+lJl kg

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KS8K0F4u#Fn.Kh4A L^0大连海事大学交通与物流工程学院;

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FOTS SiO基底 结合能 分子动力学模拟

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WP&G2i-X~0【基金】:辽宁省高校重点实验室项目(2008S029)水利论文$Mk i8I*~d

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Interfacial contact characteristics betweenFOTS SAMs and SiO2under electric fieldLIU Shuo,LIAN Feng,ZHANG Huichen(Transportation and Logistics Engineering College,Dalian Maritime University,Dalian 116026,China)0引言电场作用条件下的摩擦机理极为复杂,因此

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