关于稀释剂剂量对环氧多乙醇自愈系统影响的研究
Jiajia Sheng1, Yang Guo1, Xin Pang2
1National Center for Materials Service Safety, University of Science and Technology Beijing, Beijing 102206, China.
Polymers
|February 26, 2025
概括
这项研究调查了C12-14基甘乙烯 (AGE) 如何影响水泥复合材料中的环氧树脂聚醇自我修复系统. 增加的AGE提高了微囊的分散,但降低了机械性能,为材料优化提供了洞察力.
科学领域:
- 材料科学 材料科学 材料科学
- 土木工程 土木工程是指土木工程.
- 聚合物化学 聚合物化学
背景情况:
- 自愈技术提高了基于水泥的复合材料的抗裂性能.
- 环氧树脂聚醇系统提供了有前途的自我愈合能力.
- 稀释剂在调整这些系统的性能方面发挥着至关重要的作用.
研究的目的:
- 评估C12-14基甘乙烯 (AGE) 对环氧树脂聚乙醇 (TMPMP) 自愈系统的影响.
- 分析AGE对核心流动性,微囊性质,分子动力学和机械性能的影响.
- 为优化自己愈合的水泥材料中的稀释剂比率提供见解.
主要方法:
- 在TMPMP系统中微封装E-51和AGE.
- 微囊的颗粒大小分析和分散评估.
- 福利埃变换红外光谱 (FTIR) 用于化学确认.
- 热降解分析 (TGA) 和固化反应动力学 (DSC).
- 硬化产品的机械性能测试 (斯模量).
主要成果:
- 增加AGE剂量改善了微囊分散和颗粒大小分布.
- 微囊显示了高达423.15K的热稳定性.
- 降低AGE剂量增加了热降解温度和激活能量.
- 的模量随着AGE剂量的增加而下降,这表明刚性减少.
- 固化反应动力学对AGE含量和加热速度敏感.
结论:
- AGE显著影响了环氧多乙醇自愈系统的性能.
- 优化AGE内容对于平衡自愈效率和机械完整性至关重要.
- 这些发现支持开发具有量身定制性能的先进的自我修复水泥材料.
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