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

doi:10.13801/j.cnki.fhclxb.20220525.002

仿竹结构多孔聚醚砜基碳纤维复合材料

doi: 10.13801/j.cnki.fhclxb.20220525.002

1.
长安大学　材料科学与工程学院，西安 710064
2.
云南电网有限责任公司电力科学研究院，昆明 650217
3.
德国GZD公司，德累斯顿 01187

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
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出版历程
- 收稿日期: 2022-03-30
- 修回日期: 2022-05-04
- 录用日期: 2022-05-13
- 网络出版日期: 2022-05-26
- 刊出日期: 2023-04-15

Bamboo structure like carbon fiber reinforced porous polyethersulfone matrix composites

1.
School of Materials Science and Engineering, Chang'an University, Xi'an 710064, China
2.
Electric Power Research Institute of Yunnan Power Grid CO., LTD., Kunming 650217, China
3.
GZD, Dresden 01187, Germany

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

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。
- 仿竹结构 /
- 多孔聚醚砜 /
- 比强度 /
- 比模量 /
- 吸能 /
- 碳纤维
Abstract: Bamboo is a natural composite material, which is composed of bamboo fiber as reinforcement and lignin as matrix. The bamboo fiber structure endows bamboo with the characteristics of high strength, and the porous lignin structure endows bamboo with the characteristics of light and high toughness. In this paper, carbon fiber reinforced bamboo structure porous polyethersulfone matrix composites (CF/foam PES) were prepared by imitating the structural characteristics of bamboo, and porous polyethersulfone was deposited on the surface of carbon fiber by liquid immersion method and immersion precipitation phase transformation method. The results show that: compared with traditional carbon fiber reinforced dense polyethersulfone matrix composites (CF/condense PES), CF/foam PES prepared in this paper has low apparent density; the specific strength and specific modulus of CF/foam PES are 234.5% and 192.6% higher than those of CF/condense PES. Moreover, the porous polyethersulfone matrix enhances the energy absorption properties of CF/foam PES.
- bamboo imitation structure /
- porous polyethersulfone /
- specific strength /
- specific modulus /
- energy absorption /
- carbon fiber

HTML全文

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×

下载: 全尺寸图片幻灯片

图 2 CF/foam PES和传统密实结构的聚醚砜基碳纤维复合材料(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. Position of CF/foam PES and traditional carbon fiber reinforced dense polyethersulfone matrix composites (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

PP—Polypropylene; PE—Polyethylene; PC—Polycarbonate; PA—Polyamide; PEEK—Poly(ether-ether-ketone); GFRP—Glass-fiber reinforced plastic; CFRP—Carbon-fiber reinforced plastic; PET—Polyethylene terephthalate; PS—Polystyrene; PMMA—Polymethyl methacrylate; PTFE—Polytetrafluoroethylene; EVA—Ethylene-vinyl acetate copolymer

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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 fracture mechanism 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

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图 4 CF/foam PES的DMA图谱

Figure 4. DMA map of CF/foam PES

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图 5 CF/foam PES、CF/condense PES及Film-PES的损耗因子和界面阻尼

Figure 5. Loss factors and interface damping of CF/foam PES, CF/condense PES, Film-PES

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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

Sample	Apparent density/ (g·cm⁻³)	Tensile strength/ MPa	Tensile modulus/ MPa	Specific strength/ (m²·s⁻²)	Specific modulus/ (m²·s⁻²)
CF/condense PES	1.409	240.2	8054.9	170.5	5716.7
CF/foam PES	0.419	239.0	7009.2	570.4(234.5%↑)	16728.4(192.6%↑)

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