Journal of Radiation Research and Radiation Proces ›› 2018, Vol. 36 ›› Issue (6): 60303-060303.doi: 10.11889/j.1000-3436.2018.rrj.36.060303

• RADIATION CHEMISTRY • Previous Articles     Next Articles

Structure and thermal properties of nylon 12 irradiated by electron-beam

CHEN Bangqiong1, YANG Gang2, PU Lingmin1, LI Jianxi2   

  1. 1 Suzhou Chien-shiung Institute of Technology, Department of Electronic Information, Suzhou 215411, China;
    2 China General Nuclear Power Group Advance Materials Technology(Suzhou) Co., Ltd., Suzhou 215400, China
  • Received:2018-09-26 Revised:2018-10-22 Online:2018-12-20 Published:2018-12-21
  • Supported by:

    Supported by "Three level linkage" Research Fund Project of Suzhou Chien-shiung Institute of Technology (2017SJLD15)

Abstract:

Nylon 12 (PA12) was irradiated by an electron-beam in air. The structure and thermal properties of the samples with different absorbed doses were studied by mechanical testing, Fourier transform infrared (FTIR) spectroscopy, differential scanning calorimetry (DSC), and X-ray diffraction (XRD). The results showed that the elongation at break of PA12 decreased gradually with increasing absorbed doses, approaching 0% at an absorbed dose of 1 600 kGy, at which the tensile strength was 42 MPa. The whiteness of PA12 decreased with increasing absorbed doses. FTIR spectra showed that the carbonyl index and N-H bend strength of PA12 increased with absorbed doses. DSC results showed that the crystallization enthalpy and melting point of PA12 decreased gradually with increasing absorbed doses. XRD results showed that electron-beam irradiation did not change the crystal structure of PA12.

Key words: Nylon 12, Electron-beam irradiation, Structure, Thermal properties

CLC Number: 

  • TL13