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| 论文编号: |
122214O120130046 |
| 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: |
Effect of an polyamic acid sizing on the interfacial strength of carbon fiber/polyether sulfone composites
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| 论文题目英文: |
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| 作者: |
原浩杰
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| 论文出处: |
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| 刊物名称: |
新型炭材料
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| 年: |
2013
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| 卷: |
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| 期: |
0 |
| 页: |
13-18 |
| 联系作者: |
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| 影响因子: |
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| 摘要: |
An organic solvent-free polyamic acid (PAA) nanoemulsion was obtained by ionization treatment of the solid PAA resin in deionized water with the average particle size of 261 nm, 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 scanning electron 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 results demonstrated that the interfacial shear strength (IFSS) of carbon fiber/PES composites increased from 33.6 to 49.7 MPa by 47.9% due to the PAA sizing. 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. |
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