聚合物在冲击荷载下的物性及“相变”实验研究进展

叶世佳 郝龙 王玉锋 李守瑞 耿华运 李俊

叶世佳, 郝龙, 王玉锋, 李守瑞, 耿华运, 李俊. 聚合物在冲击荷载下的物性及“相变”实验研究进展[J]. 高压物理学报, 2024, 38(3): 030109. doi: 10.11858/gywlxb.20230787
引用本文: 叶世佳, 郝龙, 王玉锋, 李守瑞, 耿华运, 李俊. 聚合物在冲击荷载下的物性及“相变”实验研究进展[J]. 高压物理学报, 2024, 38(3): 030109. doi: 10.11858/gywlxb.20230787
YE Shijia, HAO Long, WANG Yufeng, LI Shourui, GENG Huayun, LI Jun. Experimental Research Progress on Physical Properties and “Phase Transition” of Polymers under Impact Loading[J]. Chinese Journal of High Pressure Physics, 2024, 38(3): 030109. doi: 10.11858/gywlxb.20230787
Citation: YE Shijia, HAO Long, WANG Yufeng, LI Shourui, GENG Huayun, LI Jun. Experimental Research Progress on Physical Properties and “Phase Transition” of Polymers under Impact Loading[J]. Chinese Journal of High Pressure Physics, 2024, 38(3): 030109. doi: 10.11858/gywlxb.20230787

聚合物在冲击荷载下的物性及“相变”实验研究进展

doi: 10.11858/gywlxb.20230787
基金项目: 国家自然科学基金(12274381);冲击波物理与爆轰物理全国重点实验室基金(2022JCJQLB05705,2022JCJQLB05708)
详细信息
    作者简介:

    叶世佳(1995-),男,博士,助理研究员,主要从事冲击波物理研究. E-mail:sjye95@163.com

    通讯作者:

    李 俊(1982-),男,博士,研究员,主要从事冲击波物理研究. E-mail:lijun102@caep.cn

  • 中图分类号: O521.2

Experimental Research Progress on Physical Properties and “Phase Transition” of Polymers under Impact Loading

  • 摘要: 聚合物被广泛应用于国防和国民经济的各个领域,在服役过程中,不可避免地暴露于高温高压等极端环境,因此,有必要研究其在冲击荷载下的物性及“相变”问题。聚合物具有独特的分子链结构,表现出异于金属等大多数材料的性能。聚合物的雨贡纽曲线低压外推的截距明显高于零压体波声速,且低压下的波剖面呈现带弧形的波系结构。在20~30 GPa压力范围,其雨贡纽曲线存在明显的转折,说明材料在冲击下发生了“相变”。首先,对该“相变”反映的化学分解和晶格结构转变进行了解释,并对其中蕴含的“相变”动力学问题进行了研究。然后,简单介绍了基于化学分解的物态方程的建模方法。最后,对聚合物在冲击荷载下的物性和“相变”研究提出了展望。

     

  • 图  实验装置示意图

    Figure  1.  Schematic diagram of experimental setup

    图  部分聚合物的雨贡纽数据[4]

    Figure  2.  Hugoniot data of some polymers[4]

    图  聚碳酸酯(polycarbonate,PC)在低压区的波剖面[3031]

    Figure  3.  Wave profiles of polycarbonate in low pressure region[3031]

    图  聚乙烯、聚苯乙烯和聚砜的分子链结构

    Figure  4.  Molecular chain structures of polyethylene, polystyrene and polysulfone

    图  聚酰亚胺在过渡区的波剖面[8]

    Figure  5.  Wave profiles of polyimide in transition region[8]

    图  氰酸酯在高压区的波剖面[24, 32]

    Figure  6.  Wave profiles of cyanate ester in high pressure region[24, 32]

    图  聚酰亚胺内部不同位置的(a)波剖面和(b)波速实测值及其模拟结果[8]

    Figure  7.  Experimental and simulated results of (a) wave profiles and (b) shock velocities at different positions in polyimide[8]

    图  PMMA的雨贡纽数据和波速

    Figure  8.  Hugoniot data and shock velocities of PMMA

    图  聚苯乙烯不同位置的波剖面

    Figure  9.  Wave profiles of polystyrene at different positions

    图  10  不同孔隙度的聚氨酯的“相变”阈值压力[24]

    Figure  10.  Threshold pressures of “phase transition” of polyurethane with different porosities[24]

    图  11  聚酰亚胺的雨贡纽实验数据与物态方程模型[8]

    Figure  11.  Hugoniot experimental data and equation of state model of polyimide[8]

    表  1  部分聚合物的雨贡纽状态方程参数[4]

    Table  1.   Parameters of Hugoniot equation of state of some polymers[4]

    Material Before phase transition After phase transition
    C0a/(km·s−1) sa up,a/(km·s−1) C0b/(km·s−1) sb up,b/(km·s−1)
    High density polyethylene 2.86 1.57 0.7−3.2 3.27 1.43 3.4−5.3
    Epoxy 2.69 1.51 0.4−2.8 2.88 1.35 3.6−5.2
    Polycarbonate 2.33 1.57 0.4−2.6 2.06 1.39 3.6−5.2
    Polyimide 2.66 1.48 0.6−2.2 0.93 1.64 3.4−4.6
    Polysulfone 2.35 1.55 0.7−2.4 1.58 1.51 3.4−5.1
    Material At zero pressure pt/GPa
    ρ0/(g·cm−3) Cl/(km·s−1) Ct/(km·s−1) Cb/(km·s−1)
    High density polyethylene 0.954 2.462 1.014 2.166 24.7
    Epoxy 1.192 2.641 1.177 2.264 23.1
    Polycarbonate 1.196 2.187 0.886 1.933 20.0
    Polyimide 1.414 2.723 1.217 2.332 17.8
    Polysulfone 1.235 2.249 0.930 1.976 18.5
    下载: 导出CSV

    表  2  常见分解产物的EXP6参数[44]

    Table  2.   EXP6 parameters of common decomposition products[44]

    Constituent rs $ \epsilon k_{\mathrm{B}}^{-1} $/K α Constituent rs $ \epsilon k_{\mathrm{B}}^{-1} $/K α
    H2 3.67 36.9 10.6 CO 3.55 155 12
    H2O 3.22 195 13.4 HCOOH 4.096 335 13.781
    H 1.55 110 10 C 3.7 71.4 13
    CH4 4.45 152.1 11.47 O 2.41 700 11
    C2H6 4.86 246.7 13 CO2 4.096 335 13.781
    O2 4.11 75 13.117
    下载: 导出CSV
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出版历程
  • 收稿日期:  2023-11-08
  • 修回日期:  2024-01-18
  • 网络出版日期:  2024-03-19
  • 刊出日期:  2024-06-03

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