氨基环氧系统在各种固化后温度下的机械和热性能数据
Alex Tamayo-Aguilar1, Víctor H Guerrero1, Patricia I Pontón1
1Department of Materials, Escuela Politécnica Nacional, Quito 170109, Ecuador.
Data in brief
|October 20, 2025
概括
为高温应用量身定制氨基环氧系统至关重要. 优化后固化温度显著提高机械和热性能,确保在苛刻的行业可靠的性能.
科学领域:
- 材料科学与工程 材料科学与工程
- 聚合物化学 聚合物化学
- 机械工程 机械工程
背景情况:
- 氨基环氧热系统被广泛用于苛刻的应用.
- 控制热和机械性能对于高温性能至关重要.
- 固化后处理显著影响环氧系统的最终性能.
研究的目的:
- 为量身定制的氨基环氧系统开发制造指南.
- 研究固化后温度对机械和热性能的影响.
- 为高温应用建立可重复性质.
主要方法:
- 使用了一种商用环氧系统 (Epikure 3223 amine/Epon 828环氧).
- 标本经过室温固化,然后在80,100和120°C进行后固化.
- 使用动态机械分析 (DMA) 和柔性测试来评估机械性能.
- 热行为通过差分扫描热量计 (DSC),热力学分析 (TMA) 和热重力学分析 (TGA) 来评估.
- 使用统计分析 (ANOVA) 来确定财产的意义.
主要成果:
- 固化后的温度对环氧系统的机械和热性能产生重大影响.
- 优化后固化扩展了玻璃状态的操作温度范围.
- 在接近玻璃过渡温度 (Tg ∞ ≈ 153 °C) 的温度下,可以达到可重现的性能.
结论:
- 选择合适的后固化工艺对于提高环氧系统性能至关重要.
- 这种方法可确保在汽车,航空航天和建筑领域的高温应用中具有可预测和可靠的性能.
- 这种方法将固化动力学与环氧系统的热史分开.
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