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| 论文编号: |
122214O120130028 |
| 第一作者所在部门: |
708组 |
| 中文论文题目: |
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| 英文论文题目: |
Improved interfacial adhesion in carbon fiber/polyether sulfone composites through an organic solvent-free polyamic acid sizing
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| 论文题目英文: |
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| 作者: |
张寿春*
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| 论文出处: |
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| 刊物名称: |
Applied Surface Science
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| 年: |
2013
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| 卷: |
279 |
| 期: |
0 |
| 页: |
279-284 |
| 联系作者: |
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| 收录类别: |
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| 影响因子: |
2.112
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| 摘要: |
An organic solvent-free polyamic acid (PAA) nanoemulsion was obtained by direct ionization of the solid
PAA in deionized water, with the average particle size of 261 nm and Zeta potential of
？55.1 mV, and
used as a carbon fiber sizing to improve the interfacial adhesion between the carbon fiber and polyether
sulfone (PES). The surface characteristics of PAA coated carbon fibers were investigated using Fourier
transform infrared spectroscopy, scanning electron microscopy, atomic force microscopy and dynamic
contact angle measurement. The results demonstrated that a continuous and uniform PAA sizing layer
was formed on the surface of carbon fibers, and the surface energy of carbon fibers increased from 42.91 to
54.55 mN/m after sizing treatment. The single fiber pull-out testing was also performed, which showed
the increased interfacial shear strength (IFSS) of carbon fiber/PES composites from 33.6 to 49.7 MPa
by 47.9%. The major reasons for the improved interfacial adhesion were the increased van der Waals
forces between the PES matrix and sizing layer as well as the chemical bonding between the sizing layer
and carbon fiber surface. Furthermore, the PAA sizing also presented a positive effect on the interfacial
adhesion of carbon fiber/PES composites under hydrothermal condition. |
| 英文摘要: |
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| 外单位作者单位: |
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| 备注: |
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