Surface structural changes, surface energy and antiwear properties of polytetrafluoroethylene induced by proton irradiation

CORC > 兰州化学物理研究所 > 中国科学院兰州化学物理研究所 > 先进润滑与防护材料研究发展中心

	Surface structural changes, surface energy and antiwear properties of polytetrafluoroethylene induced by proton irradiation
	Lv M(吕美)1,2; Zheng F(郑菲)1,2 ; Wang QH(王齐华)1 ; Wang TM(王廷梅)1 ; Liang YM(梁永民)3; Wang QH(王齐华); Wang QH(王齐华)
刊名	Materials and Design
	2015
卷号	85 页码:162-168
关键词	Polytetrafluoroethylene Surface modification Proton irradiation Surface energy Antiwear properties
ISSN号	0261-3069
通讯作者	王齐华
英文摘要	In this work, the polytetrafluoroethylene (PTFE) surface was modified with 25 keV proton beam irradiation in vacuum condition. Multiple characterization techniques including X-ray photoelectron spectroscopy, Raman spectroscopy and infrared spectroscopy were employed for research on microstructure changes in the PTFE surface. The changes in the surface energy and antiwear properties of PTFE were evaluated using contact angle analysis and a ball-on-disk tribometer, respectively. Experimental results showed that the surface energy of PTFE obviously increased from 13.17 mJ/m² to 33.73 mJ/m² and the wear rate decreased from 8.9 × 10^− 3 mm³/Nm to 5.8 × 10^− 4 mm³/Nm after proton irradiation for 15 min. Moreover, TRIM simulation indicated that the H⁺ ions cannot penetrate through the PTFE block and only stop at a depth of about 730 nm from the material surface. Proton irradiation has been proved to be a simple, rapid and effective measure for the surface modification of PTFE with distinctly improved surface energy and antiwear properties, and the possible reaction mechanism taking place in PTFE was also discussed in this paper.
学科主题	材料科学与物理化学
收录类别	SCI
资助信息	the National Basic Research Program of China (973 Program, Grant No. 2015CB057502);the National Defense Innovation Fund of Chinese Academy of Sciences (CXJJ-14-M43)
语种	英语
WOS记录号	WOS:000364585000021
内容类型	期刊论文
源URL	[http://210.77.64.217/handle/362003/19072]
专题	兰州化学物理研究所_先进润滑与防护材料研究发展中心兰州化学物理研究所_固体润滑国家重点实验室
通讯作者	Wang QH(王齐华); Wang QH(王齐华)
作者单位	1.Chinese Acad Sci, Lanzhou Inst Chem Phys, State Key Lab Solid Lubricat, Lanzhou 730000, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100039, Peoples R China 3.Lanzhou Univ, State Key Lab Appl Organ Chem, Lanzhou 730000, Gansu, Peoples R China
推荐引用方式 GB/T 7714	Lv M,Zheng F,Wang QH,et al. Surface structural changes, surface energy and antiwear properties of polytetrafluoroethylene induced by proton irradiation[J]. Materials and Design,2015,85:162-168.
APA	Lv M.,Zheng F.,Wang QH.,Wang TM.,Liang YM.,...&王齐华.(2015).Surface structural changes, surface energy and antiwear properties of polytetrafluoroethylene induced by proton irradiation.Materials and Design,85,162-168.
MLA	Lv M,et al."Surface structural changes, surface energy and antiwear properties of polytetrafluoroethylene induced by proton irradiation".Materials and Design 85(2015):162-168.