Coarse-grained Molecular Dynamics Simulation of the Wear Mechanism of Cyclic Polymer Brushes

被引：3
|
作者：
Liu, Zhongmin [1 ]
Ootani, Yusuke [1 ]
Uehara, Shuichi [1 ]
Xu, Jingxiang [1 ,2 ]
Wang, Yang [1 ,3 ]
Miyazaki, Narumasa [1 ]
Higuchi, Yuji [1 ]
Ozawa, Nobuki [1 ]
Kubo, Momoji [1 ]
机构：
[1] Tohoku Univ, Inst Mat Res, Aoba Ku, 2-1-1 Katahira, Sendai, Miyagi 9808577, Japan
[2] Shanghai Ocena Univ, Coll Engn Sci & Technol, Shanghai 201306, Peoples R China
[3] Tohoku Univ, Grad Sch Engn, Dept Mech Syst Engn, Aoba Ku, 6-6-01 Aramaki Aza Aoba, Sendai, Miyagi 9808579, Japan
来源：
CHEMISTRY LETTERS | 2020年 / 49卷 / 10期
关键词：
Polymer brush; Wear; Coarse-grained molecular dynamics; LAMELLAR STRUCTURE; FRACTURE PROCESSES; SURFACE; FRICTION; POLYETHYLENE; DEFORMATION; LUBRICATION; ADSORPTION; LEVEL;
D O I：
10.1246/cl.200323
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
We investigated the effect of a cyclic chain structure on the wear resistance of polymer brushes via coarse-grained molecular dynamics simulations. Friction simulations were performed for cyclic and linear polymer brushes, and the former was found to exhibit superior wear resistance. The cyclic structure suppressed the interpenetration of the polymer chain at the sliding interface, thereby reducing the frictional force and improving the wear resistance for the cyclic polymer brush.
引用
收藏
页码：1185 / 1188
页数：4
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