采用自组装技术在钛金属薄膜上制备了两种分子链长相同、官能团不同的自组装分子膜,并对其进行了不同时间的紫外照射,对钛金属薄膜和自组装分子膜进行了表征和摩擦特性测试,研究了紫外照射、官能团、滑动速度和载荷对自组装分子膜摩擦特性的影响,结果表明:通过紫外照射钛金属薄膜表面羟基化、自组装分子水解及自组装分子缩合可在钛金属薄膜上制备结构致密的自组装分子膜,制备的两种短链自组装分子膜可降低钛金属薄膜的摩擦特性,APS自组装分子膜的摩擦特性优于MPS自组装分子膜的摩擦特性,紫外照射5 min的自组装分子膜表面吸附的有机杂质被蒸发掉,对针尖的黏着力减小,从而导致针尖的变形减小,摩擦力最低,而紫外照射15 min的自组装分子膜致密的网状结构被破坏,减弱了自组装分子膜的润滑效应,两种自组装分子膜的摩擦力随着滑动速度的增加略呈上升趋势,随着载荷的增加略呈下降趋势,但是变化不大.
参考文献
| [1] | ZHANG Huichen,YAN Li,Lubrication Theory and Application in Nanometer Scale(Beijing,Chemical Industry Press,2005)P.211 (张会臣,严立,纳米尺度润滑理论及应用(北京,化学工业出版社,2005)P.211) |
| [2] | S.Tao,D.Y.Li,Tribological,mechanical and electrochemical properties of nanocrystaUine copper deposits prouced by pulse eIectrodeposition,Nanotechnology,17(1),65(2006) |
| [3] | J.H.Choo,H.A.Spikes,M.Ratoi,Friction reduction in lowload hydrodynamic lubrication with a hydrophobic surface,Tribology International,40(2),154(2007) |
| [4] | ZHANG Huichen,SUN Changguo,YAN Li,Effects of functional groups on the friction properties of selfassembled monolayers,Chinese Journal of Materials Research,18(3),301(2004) (张会臣,孙昌国,严立,官能团对自组装分子膜摩擦特性的影响,材料研究学报,18(3),301(2004)) |
| [5] | M.Nakano,T.Ishida,Creation of functional surface by self-assembled organic layer-Tribological properties of selfassembled organic layer,Journal of Japanese Society of Tribologists,50(8),590(2005) |
| [6] | O.P.Khatri,S.K.Biswas,Boundary lubrication capabilities of alkylsilane monolayer self-assembled on aluminium as investigated using FTIR spectroscopy and nanotribometry,Surface Science,600(18),4399(2006) |
| [7] | M.Akbulut,A.R.G.Alig,J.Israelachvili,Triboelectrification between smooth metal surfaces coated with selfassembled monolayers(SAMs),Journal of Physical Chemistry B,110(44),22271(2006) |
| [8] | E.Barrena,C.Ocal,M.Salmeron,A comparative AFM study of the structural and frictional properties of mixed and single component films of alkanethiols on Au(111),Surface Science,482,1216(2001) |
| [9] | I.H.Sung,D.E.Kim,Surface damage characteristics of selfassembled monolayers of alkanethiols on metal surfaces,Tribology Letters,17(4),835(2004) |
| [10] | S.Tosatti,R.Michel,M.Textor,N.D.Spencer,Self assembled monolayers of dodecyl and hydroxy-dodecyl phosphates on both smooth and rough titainium and titanium oxide surfaces,Langmuir,18(9),3538(2002) |
| [11] | YANG Shengrong,REN Sill,ZHANG Junyan,ZHANG Xushou,Structure and self-assembly mechanism of selfassembled monolayers,Chemical Journal of Chinese Universities,22(3),470(2001) (杨生荣,任嗣利,张俊彦,张绪寿,自组装单分子膜的结构及其自组装机理,高等学校化学学报,22(3),470(2001)) |
| [12] | HU Xiaoli,Studies on the formation and properties of ultra-organic thin films on the magnetic head,Ph.D Thesis of Tsinghua University,Beijing(2005) (胡晓莉,磁头表面超薄有机分子膜的制备和性能研究,清华大学博士论文(2005)) |
| [13] | D.Devaprakasam,O.P.Khatri,N.Shankar,Boundary lubrication additives for aluminium:A journey from nano to macrotribology,Tribology International,38(11-12),1022(2005) |
| [14] | T.Ye,E.A.McArthur,E.Borguet,Mechanism of UV photoreactivity of alkylsiloxane self-assembled monolayers,Journal of Physical Chemistry B,109(20),9927(2005) |
| [15] | A.E.Moser,C.J.Eckhardt,A method for reliable measurement of relative frictional properties of different selfassembled monolayers using frictional force microscopy,Thin Solid Films,382(1-2),202(2001) |
| [16] | J.P.Lee,H.K.Kim,C.R.Park,G.Park,H.T.Kwak,S.M.Koo,M.M.Sung,Photocatalytic decomposition of alkylsiloxane self-assembled monolayers on titanium oxide surfaces,Journal of Physical Chemistry B,107,8997(2003) |
| [17] | P.M.Mendes,J.A.Preece,Precision chemical engineering:integrating nanolithography and nanoassembly,Current Opinion in Colloid & Interface Science,9,236(2004) |
| [18] | N.G.Semaltianos,Modification by UV-light irradiation of the affinity for copper chemical vapour deposition of selfassembled monolayers of organosilanes on SiO2 substrates,Surface & Coatings Technology,201,7327(2007) |
| [19] | H.S.Choi,Y.Kang,H.Lee,C.Lee,Photopatterning of gold and copper surfaces by using self-assembled monolayers,Current Applied Physics,7,522(2007) |
| [20] | A.Kanta,R.Sedev,J.Ralston,The formation and stability of self-assembled monolayers of octadecylphosphonic acid on titania,Colloids and Surfaces A:Physicochem.Eng.Aspects,291,51(2006) |
| [21] | J.Yip,K.Chan,K.M.Sin,K.S.Lau,Study on the surface chemical properties of UV excimer laser irradiated polyamide by XPS,ToF-SIMS and CFM,Applied Surface Science,205,151(2003) |
| [22] | C.Boettcher,T.Bell,H.Dong,Surface engineering of timet 550 with oxygen to form a rutile-based,wear-resistant coating,Metall.Mater.Trans.A,33A,1201(2002) |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%