Ultraviolet bonding of perfluoropolyethers to carbon surfaces investigated using quantum chemical methods

被引：3

作者：

Alam, Md. Khorshed ^{[1
]}

Zhang, Hedong ^{[1
]}

Koga, Nobuaki ^{[1
]}

Iuchi, Satoru ^{[1
]}

机构：

[1] Nagoya Univ, Grad Sch Informat Sci, Dept Complex Syst Sci, Chikusa Ku, Nagoya, Aichi 4648601, Japan

来源：

MICROSYSTEM TECHNOLOGIES-MICRO-AND NANOSYSTEMS-INFORMATION STORAGE AND PROCESSING SYSTEMS | 2013年 / 19卷 / 9-10期

基金：

日本学术振兴会;

关键词：

MAGNETIC DISK SURFACES; LUBRICANT FILMS; MOLECULES; MECHANISM; IRRADIATION; ADHESION; ZDOL; PFPE;

D O I：

10.1007/s00542-013-1824-x

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

For improving the tribological performance of hard disk drives, nanometer-thick perfluoropolyether (PFPE) lubricant films are generally treated with ultraviolet (UV) irradiation to bond them to the carbon overcoats of the disks. By modeling UV irradiation as an electron emission and attachment process, we investigate the UV bonding of nonfunctional PFPE Z and functional PFPE Zdol to hydrogenated and nitrogenated carbon surfaces with quantum chemical methods. Our calculation results show that, upon electron attachment, Z dissociates at its main chain to two fragments terminated by CF2CF2 and CF2O groups, whereas Zdol dissociates to a hydrogen fluoride and a fragment. The perfluoromethoxy oxygen in one of the Z fragments and the carbon radical and the hydrogen-truncated end group in the Zdol fragment interact strongly with sp(2) and oxidized sites on carbon surfaces. Imine moieties on the CNx surface also contribute considerably to the UV bonding of Zdol.

引用

页码：1383 / 1391

页数：9

共 50 条

[21] USING A QUANTUM-CHEMICAL APPROACH FOR THE INVESTIGATION OF CORROSION ON SURFACES OF METALS AND ALLOYS
Pokhmurs'kyi, V. I.
Kornii, S. A.
Kopylets, V. I.
MATERIALS SCIENCE, 2011, 47 (02) : 137 - 149
[22] Using a quantum-chemical approach for the investigation of corrosion on surfaces of metals and alloys
V. I. Pokhmurs’kyi
S. A. Kornii
V. I. Kopylets’
Materials Science, 2011, 47 : 137 - 149
[23] Modeling of Steels and Steel Surfaces Using Quantum Mechanical First Principles Methods
Alatalo, Matti
Pitkanen, Heikki
Ropo, Matti
Kokko, Kalevi
Vitos, Levente
PHYSICAL AND NUMERICAL SIMULATION OF MATERIALS PROCESSING VII, 2013, 762 : 445 - +
[24] Quantum chemical and electrochemical studies of lysine modified carbon paste electrode surfaces for sensing dopamine
Jayaprakash, Gururaj Kudur
Swamy, B. E. Kumara
Gonzalez Ramirez, Henry Nicole
Ekanthappa, Musturappa Tumbre
Flores-Moreno, Roberto
NEW JOURNAL OF CHEMISTRY, 2018, 42 (06) : 4501 - 4506
[25] REMOVAL OF SCALE DEPOSITED ON HEAT-TRANSFER SURFACES USING CHEMICAL METHODS
ABDULLATIF, NA
ALMADFAI, SHF
GHANIM, AN
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH, 1988, 27 (08) : 1548 - 1551
[26] Structure and stability of nitrogen, argon, and carbon monoxide dimers studied by quantum chemical methods
A. A. Milov
R. M. Minyaev
V. A. Gurashvili
V. I. Minkin
Russian Journal of Inorganic Chemistry, 2015, 60 : 1225 - 1237
[27] Structure and stability of nitrogen, argon, and carbon monoxide dimers studied by quantum chemical methods
Milov, A. A.
Minyaev, R. M.
Gurashvili, V. A.
Minkin, V. I.
RUSSIAN JOURNAL OF INORGANIC CHEMISTRY, 2015, 60 (10) : 1225 - 1237
[28] Reactivity of C-C Scission on Ni-Based Core/Shell Bimetallic Surfaces Investigated with Quantum-Chemical Calculations
Lin, Yu-Chieh
Ho, Jia-Jen
JOURNAL OF PHYSICAL CHEMISTRY C, 2011, 115 (39): : 19231 - 19238
[29] ASSESSMENT OF THE POSSIBILITY OF CARBON FIBER COMPOSITE RECYCLING USING CHEMICAL METHODS
Shaydurova, G. I.
Shevyakov, Ya. S.
Vasiliev, I. L.
Gatina, E. R.
Kulikova, Yu. V.
IZVESTIYA VUZOV-PRIKLADNAYA KHIMIYA I BIOTEKHNOLOGIYA, 2018, 8 (03): : 135 - 140
[30] Quantum chemical calculations and experimental evidence for O-bonding of carbon monoxide to alkali metal cations in zeolites
J Phys Chem B, 23 (4839-4846):

← 1 2 3 4 5 →