可持续的纳米复合材料涂层用于保护历史建筑表面:分子模拟
1School of Architecture, Xiamen University Tan Kah Kee College, Zhangzhou, 363123, China. li6677882025@126.com.
Journal of molecular modeling
|November 6, 2025
概括
石墨烯和聚四乙烯 (PTFE) 显著增强环氧涂层,降低孔隙性并提高对遗产石材保护的耐腐蚀性. 这种新的复合材料涂层提供了卓越的机械强度和耐用性.
科学领域:
- 材料科学 材料科学 材料科学
- 腐蚀工程 腐蚀工程
- 纳米技术 纳米技术
背景情况:
- 有效的防腐涂层对于保存石头遗产结构至关重要.
- 环氧树脂被广泛使用,但它们的性能可以提高.
- 研究了石墨烯和聚四乙烯 (PTFE) 对环氧涂层的协同作用.
研究的目的:
- 研究石墨烯和PTFE对环氧涂层性能的协同效应.
- 评估经过修改的环氧涂料的耐腐蚀性和机械性能.
- 为开发用于历史建筑保护的先进涂料提供见解.
主要方法:
- 使用LAMMPS软件进行分子动力学模拟.
- 用于纯环氧树脂 (PR),用石墨烯增强环氧树脂 (G/PR) 和G/PTFE/PR.的模型的制造.
- 利用聚合物一致力场 (PCFF) 进行精确的模拟.
主要成果:
- 石墨烯和PTFE的结合显著降低了环氧树脂矩阵的多孔性.
- 在G/PTFE/PR系统中,水分子扩散减少了47%,环氧树脂分子扩散减少了52%.
- 增强的环氧涂层表现出优越的抗拉强度,由于键的形成阻碍了水的扩散.
结论:
- 石墨烯和PTFE的联合使用为开发高性能防腐蚀环氧涂层提供了一个有希望的战略.
- 增强的涂层显示出更好的耐腐蚀剂和更好的机械完整性.
- 这项研究通过提供先进的材料解决方案,有助于保护石材遗产.
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