• Journal of Radiation Research and Radiation Processing
  • Vol. 42, Issue 6, 060201 (2024)
Zhihao WU, Yifan LI, Hang SHEN, and Mingzhang LIN*
Author Affiliations
  • School of Nuclear Science and Technology,University of Science and Technology of China,Hefei 230026,China
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    DOI: 10.11889/j.1000-3436.2024-0102 Cite this Article
    Zhihao WU, Yifan LI, Hang SHEN, Mingzhang LIN. Effects of the amount and size of hexagonal boron nitride on the radiation resistance of silicone rubber[J]. Journal of Radiation Research and Radiation Processing, 2024, 42(6): 060201 Copy Citation Text show less
    Cross section SEM images of SR-U (a,b) and BN/SR composites loading 1 phr (c,d),3 phr (e,f),5 phr (g,h),10 phr (i,j),and 20 phr (k,l) of h-BN
    Fig. 1. Cross section SEM images of SR-U (a,b) and BN/SR composites loading 1 phr (c,d),3 phr (e,f),5 phr (g,h),10 phr (i,j),and 20 phr (k,l) of h-BN
    The ν and Mc of SR-U and BN/SR composites
    Fig. 2. The ν and Mc of SR-U and BN/SR composites
    Tensile strength (a),S100 (b),hardness (c) and Eb (d) of BN/SR composites loading different amount of h-BN
    Fig. 3. Tensile strength (a),S100 (b),hardness (c) and Eb (d) of BN/SR composites loading different amount of h-BN
    TG curves (a),DTG curves (b) and DTG magnification view (c) of SR-U and BN/SR composites (color online)
    Fig. 4. TG curves (a),DTG curves (b) and DTG magnification view (c) of SR-U and BN/SR composites (color online)
    Tensile strength (a),Eb (b) and S100 (c) of SR-U and BN/SR composites after γ-ray irradiation (color online)
    Fig. 5. Tensile strength (a),Eb (b) and S100 (c) of SR-U and BN/SR composites after γ-ray irradiation (color online)
    TG curves of SR-U (a),BN/SR-3 (b) and BN/SR-20 (c) and their Tonset (d) (color online)
    Fig. 6. TG curves of SR-U (a),BN/SR-3 (b) and BN/SR-20 (c) and their Tonset (d) (color online)
    Tensile strength (a),Eb (b),S100 (c) and hardness (d) of BN/SR composites loading different size of h-BN before and after γ-ray radiation (color online)
    Fig. 7. Tensile strength (a),Eb (b),S100 (c) and hardness (d) of BN/SR composites loading different size of h-BN before and after γ-ray radiation (color online)
    Change of crosslink density of SR-U and BN/SR composites after γ-ray irradiation (color online)
    Fig. 8. Change of crosslink density of SR-U and BN/SR composites after γ-ray irradiation (color online)
    H2 yield (a) and O2 consumption (b) of SR-U and BN/SR composites after γ-ray radiation (color online)
    Fig. 9. H2 yield (a) and O2 consumption (b) of SR-U and BN/SR composites after γ-ray radiation (color online)
    DPPH RSA of h-BN at different concentrations
    Fig. 10. DPPH RSA of h-BN at different concentrations

    样品

    Sample

    SR gum / phr

    FS

    / phr

    SiOH

    / phr

    h-BN

    / phr

    DBPMH / phr
    SR-U10030801
    BN/SR-11003081 (B2)1
    BN/SR-31003083 (B2)1
    BN/SR-51003085 (B2)1
    BN/SR-1010030810 (B2)1
    BN/SR-2010030820 (B2)1
    BN/SR-B11003088 (B1)1
    BN/SR-B21003088 (B2)1
    BN/SR-B31003088 (B3)1
    BN/SR-B41003088 (B4)1
    Table 1. The formulations of BN/SR composites
    样品 SampleTonset/ ℃T1/ ℃T2/ ℃残余量 / % Residual mass fraction
    SR-U37453966224.3
    BN/SR-138054263823.8
    BN/SR-338254062423.4
    BN/SR-538054361225.6
    BN/SR-1037353258726.2
    BN/SR-2036552433.0
    Table 2. The TG data of SR-U and BN/SR composites

    吸收剂量 / kGy

    Absorbed dose

    样品

    Sample

    拉伸强度保留值 / %

    Retention of tensile strength

    Eb保留值 / %

    Retention of Eb

    S100保留值 / %

    Retention of S100

    50SR-U90.7 ± 13.181.4 ± 8.5121.1 ± 3.3
    BN/SR-396.6 ± 9.182.0 ± 5.7125.6 ± 3.7
    BN/SR-2088.3 ± 9.172.3 ± 5.5124.6 ± 2.9
    100SR-U81.7 ±15.066.2 ± 9.4143.7 ± 3.9
    BN/SR-385.0 ± 8.465.7 ± 6.1149.5 ± 3.6
    BN/SR-2081.6 ± 6.062.3 ± 4.0150.3 ± 3.3
    150SR-U75.7 ± 15.254.7 ± 9.3172.0 ± 4.7
    BN/SR-385.1 ± 8.955.3 ± 4.9181.3 ± 5.3
    BN/SR-2077.0 ± 4.953.4 ± 5.3162.8 ± 4.6
    Table 3. The retention of mechanical properties of SR-U and BN/SR composites
    Zhihao WU, Yifan LI, Hang SHEN, Mingzhang LIN. Effects of the amount and size of hexagonal boron nitride on the radiation resistance of silicone rubber[J]. Journal of Radiation Research and Radiation Processing, 2024, 42(6): 060201
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