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PAN纳米纤维膜对PBO织物增强复合材料层间剪切性能的影响

陆瑶 赵玉芬 田荟霞 李笑宇 高兴忠 樊威

陆瑶, 赵玉芬, 田荟霞, 等. PAN纳米纤维膜对PBO织物增强复合材料层间剪切性能的影响[J]. 复合材料学报, 2021, 39(0): 1-8
引用本文: 陆瑶, 赵玉芬, 田荟霞, 等. PAN纳米纤维膜对PBO织物增强复合材料层间剪切性能的影响[J]. 复合材料学报, 2021, 39(0): 1-8
Yao LU, Yufen ZHAO, Huixia TIAN, Xiaoyu LI, Xingzhong GAO, Wei FAN. Effect of PAN nanofiber membrane on interlaminar shear properties of PBO fabric reinforced composites[J]. Acta Materiae Compositae Sinica.
Citation: Yao LU, Yufen ZHAO, Huixia TIAN, Xiaoyu LI, Xingzhong GAO, Wei FAN. Effect of PAN nanofiber membrane on interlaminar shear properties of PBO fabric reinforced composites[J]. Acta Materiae Compositae Sinica.

PAN纳米纤维膜对PBO织物增强复合材料层间剪切性能的影响

基金项目: 国家自然科学基金项目(52073224);纺织之光应用基础研究计划(J202110);超高温结构复合材料重点实验室基金 (No.6142911200310);陕西省创新能力支撑计划(2020PT-043);陕西省自然科学基础研究计划(2021JQ-659);西安工程大学博士科研启动项目(BS202053)
详细信息
    通讯作者:

    樊 威,博士,教授,硕士生导师,研究方向为三维纺织复合材料结构与性能、智能纤维与智能可穿戴、废旧纺织品回收利用及安全与防护用纺织品的开发 E-mail:fanwei@xpu.edu.cn

  • 中图分类号: TB332

Effect of PAN nanofiber membrane on interlaminar shear properties of PBO fabric reinforced composites

  • 摘要: 聚对苯撑苯并双恶唑(PBO)纤维表面黏结能力弱,其与树脂复合后界面强度低,影响复合材料力学性能。采用静电纺丝的方法在PBO平纹织物上覆一层聚丙烯腈(PAN)纳米纤维膜,再将其进行铺层固化得到复合材料,在PBO纤维与环氧树脂之间构成了梯度界面层结构,以提高复合材料界面强度。使用万能试验机对复合材料进行短梁剪切测试,通过改变纺丝电压来确定最佳的层间性能增强效果。采用原子力显微镜获得界面相对刚度图像探究界面增强机理。结果表明,在保证注射泵推速和收集辊转速不变的情况下,当纺丝电压为20 kV时,复合材料层间性能增强效果最为明显。相较于纯PBO纤维增强复合材料,表面覆膜的PBO纤维增强复合材料的层间剪切强度提高了40.1%;梯度界面结构有助于应力从树脂基体向纤维增强体均匀地传递,提高复合材料力学性能。

     

  • 图  1  聚丙烯腈(PAN)纳米纤维/聚对苯撑苯并双恶唑(PBO)平纹织物预制体制备流程

    Figure  1.  Prefabrication and preparation process of polyacrylonitrile (PAN) nanofiber/poly-p-phenylene benzobisoxazole (PBO) plain fabric

    图  2  PAN纳米纤维/PBO平纹织物复合材料制备示意图

    Figure  2.  Preparation diagram of PAN nanofiber / PBO plain fabric composite

    图  3  PAN纳米纤维/PBO平纹织物复合材料与纯PBO平纹织物复合材料剪切测试结果: (a) 应力应变曲线;(b) 短梁剪切强度值

    Figure  3.  Shear test results of PAN nanofiber / PBO plain fabric composites and pure PBO plain fabric composites: (a) stress-strain curve; (b) Shear strength value of short beam

    图  4  PAN纳米纤维/PBO平纹织物复合材料与纯PBO平纹织物复合材料损伤形貌图:(a)、(b) 纯PBO;(c)、(d) 15 kV;(e)、(f) 20 kV;(g)、(h) 25 kV

    Figure  4.  Damage morphology of PAN nanofiber / PBO plain fabric composite and pure PBO plain fabric composite: (a), (b) pure PBO; (c), (d) 15 kV; (e), (f) 20 kV; (g), (h) 25 kV

    图  5  不同纺丝电压下制备的PAN纳米纤维的直径统计:(a) 15 kV; (b) 20 kV; (c) 25 kV

    Figure  5.  Diameter statistics of PAN nanofibers prepared under different spinning voltages: (a) 15 kV; (b) 20 kV; (c) 25 kV

    图  6  超景深图像分析:(a)纯树脂浇注体;(b)为(a)局部放大图;(c)含膜树脂浇注体;(d)为(c)局部放大图

    Figure  6.  super depth of field image analysis: (a) pure resin castable; (b) enlarged view of (a); (c) film containing resin castable; (d) enlarged view for (c)

    图  7  不同纱线横截面图像: (a) PBO纤维复合材料横截面示意图;(b) PBO纤维复合材料横截面形貌图;(c) PAN/PBO纤维包芯纱复合材料横截面示意图;(d) PAN/PBO纤维包芯纱复合材料横截面形貌图

    Figure  7.  Cross-sectional images of different yarns: (a) PBO fibers composite cross-sectional schematic diagram; (b) PBO fiber composite cross-sectional morphology diagram; (c) PAN/PBO fibers core-spun yarn composite cross-sectional schematic diagram; (d) PAN/PBO fibers core-spun yarn composite Cross-sectional morphology diagram

    图  8  不同相复合材料界面微观结构测试分析相关图:(a)、(b)PBO/环氧树脂两相复合材料的横截面相对刚度图像和横截面相对刚度分布曲线;(c)、(d)PBO/PAN/环氧树脂复合材料的横截面相对刚度图像和横截面相对刚度分布曲线

    Figure  8.  Correlation diagrams for the test and analysis of the interface microstructure of different phase composites: (a), (b) cross-sectional relative stiffness images and cross-sectional relative stiffness distribution curves for PBO/epoxy composite; (c), (d) cross-sectional relative stiffness images and cross-sectional relative stiffness distribution curves for PBO/PAN/epoxy composite

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  • 收稿日期:  2021-10-09
  • 录用日期:  2021-11-08
  • 修回日期:  2021-11-01
  • 网络出版日期:  2021-12-01

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