%0 Journal Article
%T Performance of Polyaniline-coated Short Carbon Fibers in Electromagnetic Shielding Coating
%A Dongxiu YU
%A Jiang CHENG
%A Zhuoru YANG
%A <br>Dongxiu
%A YU
%A Jiang
%A CHENG
%A Zhuoru
%A YANG
%J 材料科学技术学报
%D 2007
%I 
%X Combined nitric acid oxidation method and polyaniline (PANI)-coated method were applied to modify the surface properties of short carbon fibers (SCF). The electrical and mechanical properties of acrylic coatings with 50 wt pct PANI-coated carbon fiber were investigated by using scanning electron microscope (SEM), UV-Vis spectrophotometer, four-probe method and the coaxial cable method. The results of the pH measurement and XPS (X-ray photoelectron spectroscopy) patterns showed that the oxygen functional groups, such as -OH and -COOH, were attached on the carbon fiber surfaces after oxidation treatment. The XPS analysis of PANl-coated oxidized SCF (PAOSCF) revealed that PANI may bond on the surface of oxidized SCF with chemical bonds. SEM images and surface roughness analyses showed that PANl-coated layer changed the surface morphology. Compared with SCF/acrylic coating, the surface resistivity of PAOSCF/acrylic coating decreased from17.1 to 5.3 Ω/sq and the shielding efficiency (SE) value increased from 1.54 to 23.3 dB.
%K Carbon fibers
%K Polyaniline
%K Surface treatment
%K Dispersion stability
%K Shielding effectiveness<br>碳纤维
%K 聚苯胺
%K 界面处理
%K 色散稳定性
%K 屏蔽效力
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=84529CA2B2E519AC&jid=324DC3CAB22330DB19158AE0A9B7BFA5&aid=26F96BAADDC27B24&yid=A732AF04DDA03BB3&vid=EA389574707BDED3&iid=E158A972A605785F&sid=2A2AA8B7E19F0DF7&eid=D45762219109E903&journal_id=1005-0302&journal_name=材料科学技术学报&referenced_num=0&reference_num=22