低温等离子体处理对航空氟硅橡胶表面性能的影响.pdf

第2期
材料工程
ol,43
2015年2月第73-78页
Journal of Materials Engineering
Feb,.2015pp.73-78
低温等离子体处理对航空氟硅
橡胶表面性能的影响
Effect of Low Temperature Plasma Treatment
on Surface Properties of Aviation
Fluorosilicone Rubber
陈玉如',王云英,孟江燕,范金娟,孙旭
(1南昌航空大学无损检测技术教育部重点
实验室材料科学与工程学院,南昌330063;
2北京航空材料研究院,北京100095)
CHEN Yu-ru, WANG Yun-ying, MENG Jiang-yan
FAN Jin
SUN Xu
(1 School of Materials Science and Engineering, Key Laboratory of
NDT(Ministry of Education), Nanchang Hangkong University
Nanchang 330063, China 2 Beijing Institute of Acronautical
Materials, Bcijing 100095, Chi
摘要:采用Ar,O2两种气氣对航空氟碓硫化橡胶(FS6265)表面进行低温等离子体(LTP)处理。用X射线光电子能谱
(XPS)分析表面元素,测试表征了静态接触角、表面能及剥离强度;用扫描电子显微镜(SEM)及原子力显微镜(AFM)观
察了表面形貌及表面粗糙度。结果表明:经Ar处理后,FS6265表面水接触角从101.5降到19.0°,表面能从19.3mJ
m-2升高至73.2mJ?m-2;经O2处理后,水接触角降到25.5°,表面能升高至70.6mJ?m-2。SEM及AFM图像显示
LTP处理后表面粗糙度增加。LTP处理后材料表面C、F元素含量下降,O元素含量大幅度提高,表面引人C-OH和
C=O基闭。LTP处理效果的时效性非常明显,FS6265经Ar,O2气氛处理后分别放置12,8h后表面性能的变化基本消
关键词:低温等离子体;氟硅橡胶;表面改性;粘接性;接触角
doi:10.11868/j.issn.1001-4381.2015.02.012
中图分类号:TQ333.93文献标识码:A文章编号:1001-4381(2015)02-0073-06
Abstract: Surface of the aviation vulcanized fluorosilicone(F$6265) rubber was treated by low tem-
perature plasma treatment with Ar and O2 atmospheres. Chemical element of surface of FS6265 was
analyzed by means of X-ray photoelectron spectroscopy (XPS).The static contact angle, surface ener
gy, and the peel strength were used to characterize the condition of F$6265. Surface morphology and
surface roughness were observed by scanning electron microscopy(SEM)and atomic force microscopy
(AFM). The results show that the contact angle of FS6265 decreases from 101.5 to 19, surface en
ergy increases from 19.3mj. m to 73 2mj m-2 when it's treated by Ar plasma treatment. The wa
ter contact angle declines to 25.5, and the surface energy improves to 70. 6MJ.m"2 after being trea
ted by O2. The images of SEM and AFM show that F$6265 surface roughness increases. XPS shows
that the concentration of carbon element and inert fluorine element decreases, oxygen element im
proves greatly after ITP treatment, double bonded carbon atoms (C=O)and C-OH function groups
are found in the surface. In addition, the time effectiveness of plasma treatment is obvious and for
F$6265, surface energy change disappear after treated in Ar, O2 atmospheres and then being placed 12h
and 8h
Key words: low temperature plasma(LTP); fluorosilicone rubber(F$6265); surface modification; ad-
hesive; contact ang