The Chain Segment Motion and Traps in γ‐Irradiation Crystalline Nylon 1010

Abstract

The chain segment motion, charge trapping and detrapping in γ‐irradiated nylon 1010 films (doses in the range 0–2,000 kGy were used) have been investigated by means of thermally stimulated depolarization current (TSDC). There are three current peaks (named α, ρ1 and ρ2, respectively) in the TSDC spectra, corrected by spontaneous current, above room temperature. By analyzing the characteristic parameters of the three peaks, it is found that the chain segment motion in the amorphous regions becomes more difficult at low irradiation dose (<100 kGy) and then becomes easier with further increasing irradiation dose. The stability of the traps at the crystalline‐amorphous interfaces increases at low irradiation dose (<500 kGy) and then decreases with further increasing irradiation dose; the irradiation promotes the creation of traps and the stability of traps in the crystalline regions.