Title :
Space charge detrapping behavior in different crystal phase of nylon 11
Author :
Zhu, J. ; Zhang, X.Y. ; He, B.
Author_Institution :
Dept. of Polymer Sci. & Eng., Univ. of Sci. & Technol. of China, Hefei, China
Abstract :
Thermally stimulated depolarization current (TSDC) measurement has been used to investigate the space charge detrapping behavior in four kinds of nylon 11 samples (melt-quenched, melt-annealed, solution-cast and solution-cast and then annealed). There are four space charge detrapping processes in TSDC spectra of melt-quenched and solution-cast samples. On annealing, the high temperature peak will disappear because the defects in crystalline lamellas disappear and there are only two partly overlapped space charge peaks in the TSDC spectra of well annealed sample. Various local energy levels have a trend of becoming close to each other.
Keywords :
annealing; casting; crystal defects; crystal structure; polymer films; space charge; thermally stimulated currents; crystal phase; crystalline lamella defects; local energy levels; melt-annealed; melt-quenched; nylon 11 film; solution-cast; space charge detrapping behavior; thermally stimulated depolarization current spectra; Annealing; Crystallization; Current measurement; Energy states; Helium; Polymers; Solvents; Space charge; Space technology; X-ray diffraction;
Conference_Titel :
Electrets, 2005. ISE-12. 2005 12th International Symposium on
Print_ISBN :
0-7803-9116-0
DOI :
10.1109/ISE.2005.1612371
