在环氧树脂和石之间的接口上对吸附机制和机械性能进行分子模拟研究
Lili Cai1,2,3, Tao Liu4,5, Dejian Shen4,5
1Nanjing Ningtong Intelligent Transportation Technology Research Institute Co., Ltd., Tianjiao Road, Nanjing 211135, China.
ACS omega
|June 30, 2025
概括
用DGEBA等环氧树脂对石膏 (PG) 进行固化,可以提高其用于道路建设的性能. 分子动力学模拟显示,DGEBA提供了最好的机械性能和与PG的界面粘合.
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.
- 化学工程是化学工程的重要组成部分.
背景情况:
- 石 (PG) 在塑性和强度上有局限性,适用于建筑应用.
- 环氧树脂固化为改善PG特性提供了一个潜在的解决方案.
- 在道路建设中利用PG可以减轻天然聚合物的短缺.
研究的目的:
- 为了研究环氧树脂固化的原子尺度机制.
- 评估不同的环氧树脂与PG的吸附行为和机械性能.
- 为了确定最佳的环氧树脂配方,以提高PG性能.
主要方法:
- 构建了三个接口模型:DGEBA-PG,DGEDDS-PG和AEOR-PG.
- 使用分子动力学模拟来分析界面相互作用.
- 评估结,吸附能量,机械性能和结构刚度.
主要成果:
- DGEBA显示了最多的接口键;AEOR与PG具有最高的吸附能量.
- 该DGEBA-PG系统表现出优越的整体机械性能.
- 与DGEBA-PG和DGEDDS-PG相比,AEOR-PG系统的结构更为严格.
结论:
- 环氧树脂固化显著改善了石材的特性,用于潜在的道路建设用途.
- 已确定DGEBA是增强PG机械性能的一种有前途的环氧树脂.
- 了解原子尺度上的界面相互作用是优化PG环氧复合材料的关键.
相关概念视频
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