Journal of Radiation Research and Radiation Processing, Volume. 42, Issue 6, 060103(2024)

Scattering investigation on the structure of γ-irradiated crosslinked polyethylene and filled silicone rubber materials

Kun SONG... Xiaoqing TU, Xiang LUO and Dong LIU |Show fewer author(s)
Author Affiliations
  • Key Laboratory of Neutron Physics and Institute of Nuclear Physics and Chemistry,China Academy of Engineering Physics,Mianyang 621999,China
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    Figures & Tables(9)
    Primary mechanism of action of γ-ray irradiation on polymer chains,with blue lines representing polymer chains,green dots representing crosslinks,and red dots representing scissions
    Frequency dependence of G′,G″,and η* at 200 °C for (a) original HDPE and (b) XL-HDPE with total absorbed dose of 50 kGy[19]
    Based on the irradiation cross-linked polyethylene system,a one-to-one correlation between flow-induced nucleation morphologies and strain in polyethylene via rheology – SAXS investigation[19]
    In situ SANS investigation on flow induced crystallization of irradiation cross-linked dPE/PE blend[22]
    Revisiting the morphology and mechanism of flow-induced crystallization of irradiation cross-linked PE inversely: an in situ swelling SANS study[24]
    (a) Spherical harmonic expansion of the scattering intensity I(q) for the lightly crosslinked high-density polyethylene after completion of crystallization at 132 ℃ and ε=1.1. The color bars denote the scale of the scattering intensity in arbitrary unit. (b) The associated 1D expansion coefficients Il0q[26]
    Model analyses of the spherical harmonic expansion coefficients for the SAXS spectra of shish in (a) hexagonal and (b) sparse packing. Here,we fit I20q and I40q simultaneously,and calculate the model curves of I00q,I60q,and I80q with the parameters determined from the fit. The arrow in panel (a) denotes the bump arising from the ordering of shish packing. The insets in panels (a) and (b) are schematic diagrams of the shish model for above two conditions
    Time evolution of lamellar growth for the lightly crosslinked high-density polyethylene melt. The inset is the schematic diagram of the transfer of crystallizable chains for the formation of lamellae,where the red arrows denote the diffusion direction of crystallizable chains (color online)
    Correlation between mechanical properties and microscopic structures of an optimized silica fraction in irradiation-cured silicone rubber[39]
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    Kun SONG, Xiaoqing TU, Xiang LUO, Dong LIU. Scattering investigation on the structure of γ-irradiated crosslinked polyethylene and filled silicone rubber materials[J]. Journal of Radiation Research and Radiation Processing, 2024, 42(6): 060103

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    Paper Information

    Category: REVIEW

    Received: Oct. 28, 2024

    Accepted: Dec. 4, 2024

    Published Online: Jan. 15, 2025

    The Author Email:

    DOI:10.11889/j.1000-3436.2024-0094

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