Tribological properties of cross-linked oleophilic polymer brushes on diamond-like carbon films
Motoyasu Kobayashi, Masataka Kaido, Atsushi Suzuki, Atsushi Takahara
分子集積化学部門
Surface-initiated atom transfer radical copolymerization of hexyl methacrylate (HMA) and 3-ethyl-3-oxetanylmethyl methacrylate (OxMA) was carried out on the surfaces of block- and ring-type steel pieces covered with silicon-incorporated diamond-like carbon (DLC-Si) in order to generate an oleophilic copolymer brush layer at the outermost surface. The sample was then immersed in a 1% BF3OEt2 solution to form cross-linkages between oxetane groups in the polymer brush chains. The thickness of the polymer brush layer was confirmed to be 50 nm through transmission electron microscope images of the focused ion beam (FIB)-fabricated cross section. The friction properties of the composite films were evaluated using block-on-ring tests under a load of 49 N (130 MPa), using a base oil at 353 K for 30 min. Although the brush layer was partially scratched from the substrate surface during the friction test, the polymer brush-immobilized DLC-Si exhibited a low friction coefficient of 0.02, while the friction coefficient of the non-modified steel substrate was 0.12. It is supposed that the oleophilic polymer brush was swollen in the oil to form a stable lubrication layer, thus preventing the direct contact of the DLC-Si substrate. The dependency of the tribological properties on normal load, sliding velocity, wear depth, and the silicon content of the DLC-Si substrate was also investigated.
https://doi.org/10.1016/j.polymer.2016.02.040
出版済み - 4月 20 2016
ポリマーおよびプラスチック
材料化学
10.1016/j.polymer.2016.02.040
「Tribological properties of cross-linked oleophilic polymer brushes on diamond-like carbon films」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。
Polymer Brush Material Science 100%
Surface Material Science 80%
Friction Material Science 80%
Spring Steel Material Science 40%
Silicon Material Science 40%
Solution Material Science 20%
Composite Films Material Science 20%
Diamond-Like Carbon Material Science 20%
Kobayashi, M., Kaido, M., Suzuki, A., & Takahara, A. (2016). Tribological properties of cross-linked oleophilic polymer brushes on diamond-like carbon films. polymer, 89, 128-134. https://doi.org/10.1016/j.polymer.2016.02.040
Tribological properties of cross-linked oleophilic polymer brushes on diamond-like carbon films. / Kobayashi, Motoyasu; Kaido, Masataka; Suzuki, Atsushi その他.
In: polymer, Vol. 89, 20.04.2016, p. 128-134.
Kobayashi, M, Kaido, M, Suzuki, A & Takahara, A 2016, 'Tribological properties of cross-linked oleophilic polymer brushes on diamond-like carbon films', polymer, vol. 89, pp. 128-134. https://doi.org/10.1016/j.polymer.2016.02.040
Kobayashi M, Kaido M, Suzuki A, Takahara A. Tribological properties of cross-linked oleophilic polymer brushes on diamond-like carbon films. polymer. 2016 4月 20;89:128-134. doi: 10.1016/j.polymer.2016.02.040
Kobayashi, Motoyasu ; Kaido, Masataka ; Suzuki, Atsushi その他. / Tribological properties of cross-linked oleophilic polymer brushes on diamond-like carbon films. In: polymer. 2016 ; Vol. 89. pp. 128-134.
@article{6e7a5df5cea84d5a89ec3668fd2500cd,
title = "Tribological properties of cross-linked oleophilic polymer brushes on diamond-like carbon films",
abstract = "Surface-initiated atom transfer radical copolymerization of hexyl methacrylate (HMA) and 3-ethyl-3-oxetanylmethyl methacrylate (OxMA) was carried out on the surfaces of block- and ring-type steel pieces covered with silicon-incorporated diamond-like carbon (DLC-Si) in order to generate an oleophilic copolymer brush layer at the outermost surface. The sample was then immersed in a 1% BF3OEt2 solution to form cross-linkages between oxetane groups in the polymer brush chains. The thickness of the polymer brush layer was confirmed to be 50 nm through transmission electron microscope images of the focused ion beam (FIB)-fabricated cross section. The friction properties of the composite films were evaluated using block-on-ring tests under a load of 49 N (130 MPa), using a base oil at 353 K for 30 min. Although the brush layer was partially scratched from the substrate surface during the friction test, the polymer brush-immobilized DLC-Si exhibited a low friction coefficient of 0.02, while the friction coefficient of the non-modified steel substrate was 0.12. It is supposed that the oleophilic polymer brush was swollen in the oil to form a stable lubrication layer, thus preventing the direct contact of the DLC-Si substrate. The dependency of the tribological properties on normal load, sliding velocity, wear depth, and the silicon content of the DLC-Si substrate was also investigated.",
author = "Motoyasu Kobayashi and Masataka Kaido and Atsushi Suzuki and Atsushi Takahara",
note = "Publisher Copyright: {\textcopyright} 2016 Elsevier Ltd.",
doi = "10.1016/j.polymer.2016.02.040",
journal = "Polymer",
T1 - Tribological properties of cross-linked oleophilic polymer brushes on diamond-like carbon films
AU - Kobayashi, Motoyasu
AU - Kaido, Masataka
AU - Suzuki, Atsushi
AU - Takahara, Atsushi
N1 - Publisher Copyright: © 2016 Elsevier Ltd.
N2 - Surface-initiated atom transfer radical copolymerization of hexyl methacrylate (HMA) and 3-ethyl-3-oxetanylmethyl methacrylate (OxMA) was carried out on the surfaces of block- and ring-type steel pieces covered with silicon-incorporated diamond-like carbon (DLC-Si) in order to generate an oleophilic copolymer brush layer at the outermost surface. The sample was then immersed in a 1% BF3OEt2 solution to form cross-linkages between oxetane groups in the polymer brush chains. The thickness of the polymer brush layer was confirmed to be 50 nm through transmission electron microscope images of the focused ion beam (FIB)-fabricated cross section. The friction properties of the composite films were evaluated using block-on-ring tests under a load of 49 N (130 MPa), using a base oil at 353 K for 30 min. Although the brush layer was partially scratched from the substrate surface during the friction test, the polymer brush-immobilized DLC-Si exhibited a low friction coefficient of 0.02, while the friction coefficient of the non-modified steel substrate was 0.12. It is supposed that the oleophilic polymer brush was swollen in the oil to form a stable lubrication layer, thus preventing the direct contact of the DLC-Si substrate. The dependency of the tribological properties on normal load, sliding velocity, wear depth, and the silicon content of the DLC-Si substrate was also investigated.
AB - Surface-initiated atom transfer radical copolymerization of hexyl methacrylate (HMA) and 3-ethyl-3-oxetanylmethyl methacrylate (OxMA) was carried out on the surfaces of block- and ring-type steel pieces covered with silicon-incorporated diamond-like carbon (DLC-Si) in order to generate an oleophilic copolymer brush layer at the outermost surface. The sample was then immersed in a 1% BF3OEt2 solution to form cross-linkages between oxetane groups in the polymer brush chains. The thickness of the polymer brush layer was confirmed to be 50 nm through transmission electron microscope images of the focused ion beam (FIB)-fabricated cross section. The friction properties of the composite films were evaluated using block-on-ring tests under a load of 49 N (130 MPa), using a base oil at 353 K for 30 min. Although the brush layer was partially scratched from the substrate surface during the friction test, the polymer brush-immobilized DLC-Si exhibited a low friction coefficient of 0.02, while the friction coefficient of the non-modified steel substrate was 0.12. It is supposed that the oleophilic polymer brush was swollen in the oil to form a stable lubrication layer, thus preventing the direct contact of the DLC-Si substrate. The dependency of the tribological properties on normal load, sliding velocity, wear depth, and the silicon content of the DLC-Si substrate was also investigated.
U2 - 10.1016/j.polymer.2016.02.040
DO - 10.1016/j.polymer.2016.02.040
JO - Polymer
JF - Polymer