在高温下加工的碳纤维复合材料的热力学行为
Larisa-Anda Stroe1, Daniel-Eugeniu Crunteanu1, Mihail Botan2
1Faculty of Aerospace Engineering, National University of Science and Technology POLITEHNICA of Bucharest, Splaiul Independenţei 313, 060042 Bucharest, Romania.
优化自闭体外 (OoA) 复合材料制造需要仔细控制固化温度. 温和的温度 (40-50°C) 提高了机械和热性能,用于节能应用.
科学领域:
- 材料科学 材料科学 材料科学
- 聚合物工程 聚合物工程
- 复合材料制造业 复合材料制造业
背景情况:
- 自闭体外 (OoA) 处理为高性能聚合物复合材料提供了节能且不那么复杂的制造.
- 优化OoA参数对于实现所需的材料性能至关重要.
研究的目的:
- 研究不同固化温度对碳纤维增强聚合物复合材料的热力学性能的影响.
- 为了确定在OoA加工中增强复合材料性能的最佳固化温度范围.
主要方法:
- 在OOA条件下使用树脂注入制造碳纤维/环氧层层.
- 在五种不同的温度下固化复合材料:25,40,50,60和70°C.
- 机械性能 (拉力,三点曲) 和热性能 (热偏移温度,DSC) 的评估.
主要成果:
- 增加固化温度通常会提高复合材料的刚性,强度和热偏移温度 (HDT).
- 固化温度范围为40-50°C,在机械和热性能方面提供了最平衡的改进.
- 差分扫描热量计 (DSC) 在更高的固化温度下显示出更完整的交叉连接,与增强的性能相关.
结论:
- 控制的热固化对于优化自室外 (OoA) 聚合物复合材料系统至关重要.
- 该研究支持使用特定的,适度的固化温度,以在节能复合材料制造中实现卓越的热力学性能.
- 研究结果为为先进的复合材料应用量身定制OoA处理参数提供了有价值的数据.
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