Title :
Trapping phenomena and supermolecular structure of polyester electrets
Author :
Zhou, Yiqin ; Jixiang Zhang ; Qian, Shijie ; Zhou, Guien
Author_Institution :
Dept. of Chem., Qingdao Univ., China
Abstract :
Polyethylene naphthalate dicarboxylate (PEN) films with various degrees of planar orientation were prepared by uniaxial and biaxial stretching. A linear relationship between the mean trap depth calculated from Thermally Stimulated Current spectra and the degree of planar orientation was observed. The structural origin of local states of PEN electret was proposed after X-ray diffraction measurement
Keywords :
X-ray diffraction; dielectric thin films; electrets; electron traps; energy gap; localised states; polyethylene insulation; polymer films; polymer structure; thermally stimulated currents; X-ray diffraction; biaxial stretching; local states; mean trap depth; planar orientation; polyester electrets; polyethylene naphthalate dicarboxylate films; supermolecular structure; thermally stimulated current spectra; trapping phenomena; uniaxial stretching; Chemistry; Crystallization; Electrets; Impurities; Plastic films; Polyethylene; Polymers; Positron emission tomography; Solids; X-ray diffraction;
Conference_Titel :
Electrets, 1994. (ISE 8), 8th International Symposium on
Conference_Location :
Paris
Print_ISBN :
0-7803-1940-0
DOI :
10.1109/ISE.1994.514808
