用于基板应用的混合环氧复合材料 (联合复合粘合剂) 的制造及其对机械性能的评估
Mohammad Asif Alam1, Ubair Abdus Samad1, Hany S Abdo1
1Center of Excellence for Research in Engineering Materials (CEREM), King Saud University, Riyadh 11421, Saudi Arabia.
ACS omega
|September 30, 2024
概括
这项研究开发了一种新的环氧混合纳米复合材料,使用 (Zr) 和 (SiO2) 纳米颜料. 改进后的材料在施工应用中的机械强度和粘合力方面显著改善.
科学领域:
- 材料科学 材料科学 材料科学
- 聚合物化学 聚合物化学
- 纳米技术纳米技术
背景情况:
- 环氧树脂在建筑中广泛使用,但通常需要增强机械性能和粘附性.
- 开发先进的复合材料对于在苛刻的环境中提高结构完整性和耐用性至关重要.
研究的目的:
- 开发一种新的环氧混合纳米复合材料,其中包括二氧化 (ZrO2) 和二氧化 (SiO2) 纳米颜料.
- 研究这些纳米颜料和微填充剂对环氧基质的机械和粘合性能的协同效应.
- 评估这种纳米复合材料在建筑行业应用中的潜力.
主要方法:
- 使用双A (DGEBA) 环氧基质与ZrO2和SiO2纳米颗粒和微填充剂的亚利发性二氧化乙烯基乙制造环氧混合纳米复合材料.
- 填料的均分散是通过超声波和西兰合剂实现的.
- 使用ASTM标准进行机械性能测试 (拉力强度,度强度,弹性模量).
- 通过膝盖剪切测试对粘合物质的评估.
- 使用富里埃变换红外光谱 (FTIR),场辐射扫描电子显微镜 (FESEM),能量分散光谱 (EDS) 和高分辨率传输电子显微镜 (HRTEM) 的材料表征.
主要成果:
- 与SiO2-only配方相比,观察到最终抗拉强度 (95.3%),收益强度 (162.1%),弹性模量 (425.4%) 的显著提高.
- ZrO2,SiO2和微填充剂 (粉,酸盐) 的协同组合导致了机械性能的大幅改善.
- 鉴定证实了纳米颜料和填充剂在环氧基质内均分散.
- 发现了较好的粘合性能,这对于建筑应用至关重要.
结论:
- 开发的环氧混合纳米复合材料表现出优异的机械强度和粘附性,这是由于ZrO2和SiO2纳米颜料与微填充剂的协同作用.
- 这种先进的材料在建筑行业的应用中具有显著的前景,需要高性能和耐用性.
- 该研究强调了纳米颗粒结合用于增强环氧树脂性能的有效性.
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