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仿竹结构多孔聚醚砜基碳纤维复合材料

许培俊 韩磊 王临江 郭新良 刘荣海 高尚林

许培俊, 韩磊, 王临江, 等. 仿竹结构多孔聚醚砜基碳纤维复合材料[J]. 复合材料学报, 2022, 40(0): 1-8
引用本文: 许培俊, 韩磊, 王临江, 等. 仿竹结构多孔聚醚砜基碳纤维复合材料[J]. 复合材料学报, 2022, 40(0): 1-8
Peijun XU, Lei HAN, Linjiang WANG, Xinliang GUO, Ronghai LIU, Shanglin GAO. Bamboo structure like carbon fiber reinforced porous polyethersulfone matrix composites[J]. Acta Materiae Compositae Sinica.
Citation: Peijun XU, Lei HAN, Linjiang WANG, Xinliang GUO, Ronghai LIU, Shanglin GAO. Bamboo structure like carbon fiber reinforced porous polyethersulfone matrix composites[J]. Acta Materiae Compositae Sinica.

仿竹结构多孔聚醚砜基碳纤维复合材料

基金项目: 国家自然科学基金面上项目(51978072);陕西省重点研发计划项目(2022 GY-371);长安大学中央高校基本科研业务费专项资金资助(300102312404);
详细信息
    通讯作者:

    许培俊,博士,教授,博士研究生导师,研究方向为聚合物基复合材料 E-mail: xupeijun@chd.edu.cn

  • 中图分类号: TB332

Bamboo structure like carbon fiber reinforced porous polyethersulfone matrix composites

Funds: National Natural Science Foundation of China (51978072); Key Research and Development Program of Shanxi Province (2022 GY-371); Fundamental Research Funds for the Central Universities of Chang'an University (300102312404)
  • 摘要: 竹子是以竹纤维为增强体、木质素为基体所构成的天然复合材料,其竹纤维赋予了竹材高强度的特点,多孔木质素结构赋予了竹材轻质、高韧性的特点。本文通过模仿竹子的结构特征,采用液相浸渍法和浸没沉淀相转化法在碳纤维表面沉积多孔聚醚砜聚合物,制备出兼具轻质、高韧性、高强度特点的仿竹结构多孔聚醚砜基碳纤维复合材料(CF/foam PES)。研究结果表明:与传统密实结构的聚醚砜基碳纤维复合材料(CF/condense PES)相比,本文制备出的聚醚砜基碳纤维复合材料的海绵状多孔聚醚砜结构降低了复合材料的表观密度,且CF/foam PES的比强度相对于CF/condense PES提高了234.5%,比模量提高了192.6%;多孔聚醚砜使CF/foam PES具有优异的吸能性能。

     

  • 图  1  仿竹结构多孔聚醚砜基碳纤维复合材料(CF/foam PES)微观形貌:(a) 20000倍下CF/foam PES的断面图;(b) 2500倍下CF/foam PES的断面图

    Figure  1.  Microstructure of carbon fiber reinforced bamboo structure porous polyethersulfone matrix composites (CF/foam PES): (a) section of CF/foam PES for 20000×; (b) section of CF/foam PES for 2500×

    图  2  CF/foam PES和CF/condense PES在材料拉伸性能空间图中所处的位置:(a) 拉伸强度-密度;(b) 拉伸模量-密度;(c) 比强度-密度;(d) 比模量-密度

    Figure  2.  The position of CF/foam PES and CF/condense PES in the space diagram of tensile properties of materials: (a) tensile strength-density; (b) tensile modulus-density; (c) specific strength-density; (d) specific modulus-density

    图  3  拉伸曲线及断裂机制示意图:(a) CF/foam PES及CF/condense PES的应力-应变曲线;(b) CF/foam PES的拉伸断面示意图;(c) CF/condense PES的拉伸断面示意图

    Figure  3.  Drawing curve and schematic diagram: (a) stress-strain curves of CF/foam PES and CF/condense PES; (b) drawing section of CF/foam PES; (c) drawing section diagram of CF/condense PES

    图  4  CF/foam PES的DMA图谱

    Figure  4.  DMA map of CF/foam PES

    图  5  CF/foam PES、CF/condense PES及Film-PES的损耗因子Fig.5 Loss factors of CF/foam PES、CF/condense PES及Film-PES

    表  1  CF/foam PES和CF/condense PES的力学性能

    Table  1.   Mechanical properties of CF/foam PES and CF/condense PES

    SampleApparent density/
    (g·cm−3)
    Tensile strength/
    MPa
    Tensile modulus/
    MPa
    Specific strength/
    (m2·s−2)
    Specific modulus/
    (m2·s−2)
    CF/condense PES1.409240.28054.9170.55716.7
    CF/foam PES0.419239.07009.2570.4(234.5%↑)16728.4(192.6%↑)
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  • 收稿日期:  2022-03-30
  • 录用日期:  2022-05-13
  • 修回日期:  2022-05-04
  • 网络出版日期:  2022-06-01

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