期刊
APPLIED SURFACE SCIENCE
卷 311, 期 -, 页码 273-278出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.apsusc.2014.05.055
关键词
Silica surface; Ordered orientation; Polyethylene; Molecular dynamics
类别
资金
- National Science Foundation of China [NSFC-11174117, NSFC-11374132]
- Shandong Province Natural Science Foundation of China [ZR2013AQ018]
The structural and dynamical properties of polyethylene (PE) adsorbed on (1 1 1), (2 2 0) and (3 3 1) surfaces of SiO2 are investigated using molecular dynamics (MD) simulation. The evolution of the PE/SiO2 composite system is characterized using the change of nonbond energy along with time. The dynamical behaviors of PE adsorbed on these surfaces are analyzed by aid of the radial distribution, the order parameter and the diffusion coefficient. The results show that these surfaces of SiO2 can induce ordered orientation of PE although the induction effects of the surfaces are obviously different, which is helpful for designing PE/SiO(2)composite materials. (C) 2014 Elsevier B.V. All rights reserved.
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