用3D直角织成复合材料与玄武丝线进行界面修改和曲性能
Lihua Lyu1, Fangfang Wen1, Tingting Lyu1
1School of Textile and Material Engineering, Dalian Polytechnic University, Dalian 116034, China.
Materials (Basel, Switzerland)
|June 10, 2023
概括
用碳纳米管或聚多巴胺修改玄武岩纤维3D织物显著提高了复合材料的曲强度. 这项研究为高级应用提供了对材料增强的见解.
科学领域:
- 材料科学 材料科学 材料科学
- 复合材料 复合材料 复合材料
- 纳米技术纳米技术
背景情况:
- 改善3D织物界面特性对于复合材料的性能至关重要.
- 玄武纤维 (BF) 3D编织面料提供了潜力,但需要表面修改以提高功能.
研究的目的:
- 通过使用功能化碳氧化碳纳米管 (KH570-MWCNTs) 和聚多巴胺 (PDA) 来研究基岩纤维3D编织面料的修饰.
- 评估这些修改对以环氧树脂为基础的3D直角编织复合材料 (3DOWC) 曲性能的影响.
主要方法:
- 使用KH570-MWCNT和PDA修改BF3D织物.
- 通过真空辅助树脂转移成型 (VARTM) 制造3DOWC.
- 实验测试和有限元分析 (FEA) 来评估曲性能.
主要成果:
- 无论是KH570-MWCNTs还是PDA修改都成功地改变了玄武岩纤维表面.
- 修改后的3DOWC表现出明显改善的曲性能,最大负载增加分别为31.5%和31.0%.
- FEA的结果与实验数据密切匹配,误差低至3.37%,验证了模拟模型.
结论:
- 使用KH570-MWCNTs和PDA进行表面修改,有效地提高了玄武岩纤维3D编织复合材料的曲性能.
- 这项研究验证了FEA用于预测复合材料的行为和了解曲过程中损伤机制的使用.
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