固化温度对多纳米粒子增强环氧矩阵复合材料制造工艺的影响
João M Parente1, Rogério Simoes2, Abilio P Silva1
1C-MAST-Centre for Mechanical and Aerospace Science and Technologies, Universidade da Beira Interior, Rua Marquês d'Avila e Bolama, 6201-001 Covilhã, Portugal.
Materials (Basel, Switzerland)
|April 27, 2024
概括
较低的固化温度 (5°C) 显著提高了用石墨烯 (GNP) 和碳纳米纤维 (CNFs) 增强的复合材料的机械性能. 混合化进一步提高了性能,但树脂类型影响了有效性.
科学领域:
- 材料科学 材料科学 材料科学
- 聚合物科学 聚合物科学
- 纳米技术纳米技术
背景情况:
- 像石墨烯 (GNP) 和碳纳米纤维 (CNF) 这样的纳米粒子越来越多地用于增强复合材料.
- 了解制造参数,如固化温度对纳米粒子增强复合材料的影响,对于优化性能至关重要.
- 纳米粒子类型,含量,树脂矩阵和加工条件之间的相互作用会影响复合材料的性能.
研究的目的:
- 研究固化温度对含有GNP,CNF或混合混合物的复合材料的机械性能的影响.
- 分析纳米粒子类型,含量,树脂和混合化如何影响复合材料的特性.
- 为了确定最佳的固化条件,以提高机械性能.
主要方法:
- 复合材料是使用不同树脂的石墨烯 (GNP) 和碳纳米纤维 (CNF) 制造的.
- 测量了纳米粒子添加对树脂粘度和复合材料收缩的影响.
- 机械性能 (曲和硬度) 在不同的固化温度 (5°C和20°C) 下进行了评估.
- 混合化和树脂类型对这些特性的影响被系统地研究.
主要成果:
- 无论是GNP还是CNF都增加了树脂粘度,而CNF显示出更明显的效果.
- 国民生产总值的增加导致了显著的收缩增长,而CNF则导致了显著的下降.
- 在5°C的固化温度下,所有测试的复合材料的曲性和硬度比20°C高.
- GNP和CNF的混合化导致曲和硬度的协同改进,超过了单一增强复合材料.
- 发现杂交的有效性是树脂依赖的.
结论:
- 固化温度是实现纳米粒子增强复合材料最佳机械性能的关键因素.
- 较低的固化温度 (5°C) 有助于增强曲和硬度.
- 混合纳米粒子系统由于协同效应提供了卓越的性能,尽管树脂兼容性是关键.
- 这项研究为通过受控制造工艺设计高性能纳米复合材料提供了宝贵的见解.
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