Title :
SF6, O2, air glow discharge improve the electret property of biaxially oriented polypropylene film
Author :
Feng, Wei ; Jinghua Xia ; Tu, Demin
Author_Institution :
Electr. Insulation Inst., Xian Jiao Tong Univ., China
Abstract :
SF6 ,O2, air cold plasma are used for surface modification of the biaxially oriented polypropylene (BOPP) films. The effect of surface grafting on electret property is investigated. Surface potential is characterized as a parameter to evalue charge storage capacity, and half value temperature (T1/2 ) of thermal stimulated charge decay (TSCD) is an indicator of charge storage stability. The experiment result show that surface grafting increase the charge storage capacity 50% and T1/2 raise 25°C. IR spectrum gives some detail information about the chemical structure change taking piece during treatment, especially introduction of polar groups C=O,C-F etc. Finally the relationship between chemical component and trap density and modification effect are discussed
Keywords :
chemical structure; electrets; glow discharges; infrared spectra; polymer films; surface potential; surface treatment; thermally stimulated currents; BOPP; IR spectrum; biaxially oriented polypropylene film; charge storage; chemical structure; cold plasma treatment; electret; glow discharge; half value temperature; surface grafting; surface potential; thermal stimulated charge decay; Chemicals; Electrets; Electrodes; Glow discharges; Plasma properties; Plasma temperature; Polymers; Sulfur hexafluoride; Surface discharges; Surface treatment;
Conference_Titel :
Electrets, 1996. (ISE 9), 9th International Symposium on
Conference_Location :
Shanghai
Print_ISBN :
0-7803-2695-4
DOI :
10.1109/ISE.1996.578051
