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表面改性自金属化技术制备表面导电热固性聚酰亚胺复合材料

张嘉阳 倪洪江 龚明 李军 张代军 陈祥宝

张嘉阳, 倪洪江, 龚明, 等. 表面改性自金属化技术制备表面导电热固性聚酰亚胺复合材料[J]. 复合材料学报, 2021, 38(10): 3247-3254. doi: 10.13801/j.cnki.fhclxb.20210104.001
引用本文: 张嘉阳, 倪洪江, 龚明, 等. 表面改性自金属化技术制备表面导电热固性聚酰亚胺复合材料[J]. 复合材料学报, 2021, 38(10): 3247-3254. doi: 10.13801/j.cnki.fhclxb.20210104.001
ZHANG Jiayang, NI Hongjiang, GONG Ming, et al. Preparation of surface conductive thermosetting polyimide composites by surface modification self-metallization process[J]. Acta Materiae Compositae Sinica, 2021, 38(10): 3247-3254. doi: 10.13801/j.cnki.fhclxb.20210104.001
Citation: ZHANG Jiayang, NI Hongjiang, GONG Ming, et al. Preparation of surface conductive thermosetting polyimide composites by surface modification self-metallization process[J]. Acta Materiae Compositae Sinica, 2021, 38(10): 3247-3254. doi: 10.13801/j.cnki.fhclxb.20210104.001

表面改性自金属化技术制备表面导电热固性聚酰亚胺复合材料

doi: 10.13801/j.cnki.fhclxb.20210104.001
基金项目: 国家自然科学基金(51803201)
详细信息
    通讯作者:

    陈祥宝,博士,研究员,博士生导师,研究方向为先进复合材料  E-mail:xiangbao.chen@biam.ac.cn

  • 中图分类号: TB333

Preparation of surface conductive thermosetting polyimide composites by surface modification self-metallization process

  • 摘要: 采用碱刻蚀/离子交换的方法对碳纤维增强热固性聚酰亚胺基复合材料进行了表面自金属化,制备了表面覆银导电聚酰亚胺复合材料。表征了聚酰亚胺复合材料表面酰亚胺五元环开环程度随碱液刻蚀条件的变化,研究了碱液刻蚀、酸洗、离子源和离子交换时间对复合材料表面导电性和力学性能的影响。当碱液刻蚀5 h、离子交换9 h时,热固性聚酰亚胺复合材料表面方块电阻可达0.26 Ω·sq−1,且基本力学性能得到保持。

     

  • 图  1  碱液刻蚀前后聚酰亚胺复合材料表面树脂FTIR图谱

    Figure  1.  FTIR spectra of polyimide composite surface resin before and after alkali modification

    图  2  GC800/EC-380A复合材料表面聚酰亚胺开环程度与碱刻蚀时长关系

    Figure  2.  Relationship between degree of imide ring-cleavage reaction on composite surface and alkali modification time

    图  3  过度碱刻蚀导致的复合材料层板边缘碳纤维毛丝图

    Figure  3.  Carbon fiber filaments at the edge of composite laminates caused by excessive alkali modification

    图  4  表面导电热固性聚酰亚胺复合材料表面微观形貌

    Figure  4.  Microscopic morphologies of surface conductive thermo setting polyimide composites

    图  5  表面覆银热固性聚酰亚胺树脂块

    Figure  5.  Surface silver coated thermosetting polyimide resin

    图  6  碱刻蚀不同时长聚酰亚胺复合材料弯曲性能

    Figure  6.  Flexural properties of polyimide composites modified by alkali at different time lengths

    图  7  碱刻蚀不同时长聚酰亚胺复合材料层间剪切性能

    Figure  7.  Interlaminar shear properties of polyimide composites modified by alkali at different time lengths

    表  1  聚酰亚胺复合材料表面电阻与碱刻蚀时长和离子交换时长关系

    Table  1.   Relationship between surface resistance of polyimide composites and alkali modification time and ion exchange time

    ModificationSurface resistance/(Ω·sq−1)
    Ion-exchange 3 hIon-exchange 9 hIon-exchange 24 h
    0 h Non-conducting Non-conducting Non-conducting
    3 h 0.57 0.50 0.84
    5 h 0.37 0.26 0.39
    7 h 0.22 0.18 0.20
    22 h 0.49 0.24 0.25
    下载: 导出CSV

    表  2  聚酰亚胺复合材料表面银层电阻与酸洗工艺和离子交换时长关系

    Table  2.   Relationship between the silver layer resistance of polyimide composites and acid washing process and ion exchange time

    Kinds of acidConcentration/%Pickling time/minIon exchange time/minSurface resistance/(Ω·sq−1)
    HCl 10 30 5
    HNO3 10 30 5 0.65
    HNO3 10 30 10 0.54
    HNO3 10 60 5 1.08
    HNO3 20 30 10 0.94
    下载: 导出CSV
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出版历程
  • 收稿日期:  2020-11-04
  • 录用日期:  2020-12-19
  • 网络出版日期:  2021-01-05
  • 刊出日期:  2021-10-01

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