| 王岩， 吴震宇， 卢坚.成型压力对碳纤维增强聚醚醚酮复合材料性能的影响[J].轻工机械,2025,43(3):17-22 |
| 成型压力对碳纤维增强聚醚醚酮复合材料性能的影响 |
| Effect of Molding Pressure on Properties of Carbon Fiber/ Polyether Ether Ketone Composites |
| |
| DOI：10.3969/j.issn.1005 2895.2025.03.003 |
| 中文关键词: 复合材料 碳纤维增强聚醚醚酮 成型压力 层间断裂韧性 纤维桥接 |
| 英文关键词:composites CF/PEEK（Carbon Fiber/Polyether Ether Ketone） molding pressure interlaminar fracture toughness fiber bridging |
| 基金项目:国家自然科学基金区域发展重点项目：激光辅助热塑性复合材料构件原位铺放成形制造关键技术研究（U22A20182）。 |
|
| 摘要点击次数: 4 |
| 全文下载次数: 4 |
| 中文摘要: |
| 为提高复合材料成型工艺的效率和材料性能，课题组研究了成型压力对碳纤维增强聚醚醚酮（Carbon Fiber/Polyether Ether Ketone，CF/PEEK）复合材料性能的影响，并设计了监测不同成型压力下性能变化的实验方法。该方法结合了修正梁理论和J积分理论，计算得到载荷 拉伸总位移曲线、R曲线及纤维桥接牵引力，同时利用扫描电子显微镜和光学显微镜对层间断裂韧性和纤维桥接牵引力进行深入研究。实验结果表明：成型压力对复合材料的性能有显著影响，适当的成型压力有助于树脂均匀渗透并增强纤维与基体的结合，从而提高复合材料的致密性、抗断裂性和韧性；[JP2]过高的成型压力可能导致树脂流失、界面结合力下降及纤维桥接牵引力减弱；而过低的成型压力则可能导致树脂渗透不完全，产生空隙或气泡，进而影响材料的力学性能。因此，将成型压力控制在适当范围内是提升复合材料性能的关键手段之一。 |
| 英文摘要: |
| In order to improve the efficiency of composites molding process and material properties, the research group studied the effect of molding pressure on the properties of Carbon Fiber/Polyether Ether Ketone (CF/PEEK) composites, and designed an experimental method to monitor the performance changes under different molding pressures. This method combined the modified beam theory and J integral theory to record and calculate the load tensile total displacement curve, R curve and fiber bridging traction. At the same time, the interlaminar fracture toughness and fiber bridging force were analyzed by scanning electron microscope and optical microscope. The experimental results show that the molding pressure has a significant effect on the properties of composites. Appropriate molding pressure helps the resin to penetrate uniformly and enhance the bonding between the fiber and the matrix, thereby improving the compactness, fracture resistance and toughness of the composite. Excessive molding pressure may lead to resin loss, decrease of interfacial bonding force and weakening of fiber bridging force. While too low molding pressure may lead to incomplete resin penetration, resulting in voids or bubbles, which will affect the mechanical properties of the material. Therefore, controlling the molding pressure within an appropriate range is one of the critical techniques to improving the performance of composites. |
| 查看全文 查看/发表评论 下载PDF阅读器 |
| 关闭 |
