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雷达-红外双波段兼容的碳纤维/铝粉/改性三元乙丙复合涂层

宁亮 董春蕾 王贤明 吴连锋 于美杰 王成国

宁亮, 董春蕾, 王贤明, 等. 雷达-红外双波段兼容的碳纤维/铝粉/改性三元乙丙复合涂层[J]. 复合材料学报, 2024, 42(0): 1-9.
引用本文: 宁亮, 董春蕾, 王贤明, 等. 雷达-红外双波段兼容的碳纤维/铝粉/改性三元乙丙复合涂层[J]. 复合材料学报, 2024, 42(0): 1-9.
Ning Liang, DONG Chunlei, WANG Xiangming, et al. Radar-IR dual band compatible carbon fiber/aluminum powder /modified EPDM composite coating[J]. Acta Materiae Compositae Sinica.
Citation: Ning Liang, DONG Chunlei, WANG Xiangming, et al. Radar-IR dual band compatible carbon fiber/aluminum powder /modified EPDM composite coating[J]. Acta Materiae Compositae Sinica.

雷达-红外双波段兼容的碳纤维/铝粉/改性三元乙丙复合涂层

基金项目: 山东省重点研发计划(重大科技创新工程)(2021ZLGX01, 2021CXGC010903);山东省自然科学基金 (ZR2022ME055)
详细信息
    通讯作者:

    王贤明,硕士,正高级工程师,硕士生导师,研究方向为特种涂料 E-mail: wxm133701@163.com

    王成国,博士,教授,博士生导师,研究方向为碳纤维复合材料 E-mail:wangchg@sdu.edu.cn

  • 中图分类号: TB332

Radar-IR dual band compatible carbon fiber/aluminum powder /modified EPDM composite coating

Funds: Key Research and Development Program of Shandong Province (No. 2021ZLGX01, 2021CXGC010903); Shandong Province Natural Science Foundation (No. ZR2022ME055)
  • 摘要: 多波段兼容的复合涂层材料在军民融合领域需求迫切,是目前的研究热点。涂料粘结剂是影响涂层力学性能、红外性能和介电性能的重要组分,然而大部分有机粘结剂红外发射率较高,添加低发射率填料后往往无法协调力学性能、红外隐身和雷达透波性能之间的矛盾。以丙烯酸(AA)、马来酸酐(MAH)为改性单体对三元乙丙粘结剂进行接枝改性,以改性前后的三元乙丙为粘结剂,以漂浮性铝粉和短切抗静电碳纤维为填料,制备了具有低红外发射率和低介电损耗特性的复合涂层。系统研究了改性单体种类、用量对粘结剂本身以及对添加填料的复合涂层性能的影响规律。研究结果表明,随着改性单体含量的增加,复合涂层的红外发射率略有提高,而雷达透波性能基本维持不变。粘结剂的接枝改性改善了填料和粘结剂之间的相容性、润湿性和界面结合,显著提高了复合涂层的力学性能,通过适当的接枝改性,复合涂层的拉伸强度(σb)和断裂伸长率(e)分别可提高32%和18%。分析了引入极性单体对复合涂层介电常数和损耗的影响,以及对填料与树脂相容性的影响。

     

  • 图  1  接枝改性前后EPDM的红外光谱

    Figure  1.  FTIR spectroscopy of EPDM before and after modification

    图  2  单体含量对改性清漆涂层力学性能的影响

    Figure  2.  Effect of monomer content on mechanical properties of modified varnish coatings

    图  3  复合涂层力学性能随改性单体用量的变化

    Figure  3.  Mechanical properties of the composite coating vary with the amount of the monomers

    图  4  复合涂层拉伸断口SEM形貌

    Figure  4.  SEM morphology of composite coating tensile fracture

    (a) Low magnification and (b) high magnification of composite coating without modification (a1)-(a4) composite coating modified by AA (b1)-(b4) composite coating modified by MAH

    图  5  清漆涂层红外发射率随厚度和底板的变化

    Figure  5.  Infrared emissivity of varnish coating with thickness and base plate type

    图  6  复合涂层红外发射率随改性单体的变化(底板均为环氧板)

    Figure  6.  Infrared emissivity of composite coating vary with the amount of the monomers(the base plates are all epoxy)

    图  7  清漆涂层的介电性能随改性单体用量的变化

    Figure  7.  Dielectric properties of the varnish coating vary with the amount of the monomers

    图  8  改性前后复合涂层的介电性能

    Figure  8.  Dielectric properties of the composite coating before and after modification

    表  1  样品编号和单体用量

    Table  1.   Samples and the dosage of monomers

    Samples Dosage of AA/g Dosage of MAH/g
    EPDM-g-AA1 0.5 0
    EPDM-g-AA2 1.0 0
    EPDM-g-AA3 1.5 0
    EPDM-g-AA4 2.0 0
    EPDM-g-MAH1 0 0.5
    EPDM-g-MAH2 0 1.0
    EPDM-g-MAH3 0 1.5
    EPDM-g-MAH4 0 2.0
    Notes: EPDM—Ethylene propylene diene; AA—modified by acrylic acid; MAH—modified by maleic anhydride.
    下载: 导出CSV
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出版历程
  • 收稿日期:  2023-12-04
  • 修回日期:  2023-12-23
  • 录用日期:  2023-12-25
  • 网络出版日期:  2024-01-24

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