稀有金属材料与工程
稀有金屬材料與工程
희유금속재료여공정
RARE METAL MATERIALS AND ENGINEERNG
2010年
1期
37-41
,共5页
生物材料%自组装%超导磁体%接触角%表面能
生物材料%自組裝%超導磁體%接觸角%錶麵能
생물재료%자조장%초도자체%접촉각%표면능
biomaterials%self-assembly%superconductive magnet%contact angle%surface energy
在利用梯度磁场模拟的重力场环境中,用自组装的方法在钛合金表面制备官能团修饰的改性表面.采用接触角测量仪测量各种表面的接触角及表面能,用AFM分析抛光及酸洗表面的粗糙度.接触角测量结果表明,几种表面对3种测试液体的接触角及表面能的变化趋势基本一致;强磁效应使得官能团修饰的钛合金表面接触角降低,表面能提高;磁场强度相等时,重力加速度与接触角呈反比关系,与表面能呈正比关系.
在利用梯度磁場模擬的重力場環境中,用自組裝的方法在鈦閤金錶麵製備官能糰脩飾的改性錶麵.採用接觸角測量儀測量各種錶麵的接觸角及錶麵能,用AFM分析拋光及痠洗錶麵的粗糙度.接觸角測量結果錶明,幾種錶麵對3種測試液體的接觸角及錶麵能的變化趨勢基本一緻;彊磁效應使得官能糰脩飾的鈦閤金錶麵接觸角降低,錶麵能提高;磁場彊度相等時,重力加速度與接觸角呈反比關繫,與錶麵能呈正比關繫.
재이용제도자장모의적중력장배경중,용자조장적방법재태합금표면제비관능단수식적개성표면.채용접촉각측량의측량각충표면적접촉각급표면능,용AFM분석포광급산세표면적조조도.접촉각측량결과표명,궤충표면대3충측시액체적접촉각급표면능적변화추세기본일치;강자효응사득관능단수식적태합금표면접촉각강저,표면능제고;자장강도상등시,중력가속도여접촉각정반비관계,여표면능정정비관계.
Functional-group-modified surface of titanium alloys was derived by self-assembly method in the high-magnetic gravity field simulated by superconductive magnet. Contact angle and surface energy of the surface were measured and calculated by a contact angle meter, and surface roughness of the polished and eroded samples was analyzed by atomic force microscopy (AFM). The contact angle test results show that the developing tendency of contact angle and surface energy of the six test surfaces for the three fluids is basically consistent. The contact angle of the surface chemically modified by -PO_4H_2 functional group is decreased, and its surface energy is higher in the magnet than that out of the magnet due to the high magnetic effect. The acceleration of gravity is inversely proportional to the contact angle, and proportional to the surface energy when magnetic field intensity are equal.
