评估和检测酸活性飞灰上西兰合剂和银层之间的化学键
Ranfang Zuo1, Jingyun Chen1, Jinder Jow1
1National Institute of Clean-and-Low-Carbon Energy, Future Science City, Changping District, Beijing 102211, China.
Materials (Basel, Switzerland)
|November 9, 2024
概括
性激活增强了飞灰的湿透性,从而改善了化物修饰和无电. N-(2-氨基乙基) -3-氨基基三甲基 (KH792) 在飞灰上成功形成了N-Ag键,与其他烯不同.
科学领域:
- 材料科学 材料科学 材料科学
- 表面化学 表面化学
- 化学工程是化学工程的重要组成部分.
背景情况:
- 飞灰 (FA) 的利用对于可持续建筑至关重要.
- 对FA的表面修改提高了其在先进材料中的适用性.
- 性激活是改变FA特性的一个关键过程.
研究的目的:
- 为了研究激活对飞灰湿度的影响.
- 评估不同联剂在FA上与银形成键的性能.
- 为了优化条件,在修改飞灰上进行银.
主要方法:
- 使用NaOH溶液性激活飞灰.
- 使用特定方法 (g2/s) 测量湿度.
- 使用X射线光电子谱 (XPS) 和扫描电子显微镜 (SEM) 进行表面分析.
主要成果:
- NaOH的激活增加了13.8微米的FA颗粒的可湿性.
- N-(2-氨基乙基) -3-氨基基三甲基 (KH792) 在FA表面促进了N-Ag键的形成.
- 其他西兰 (KH560,MTMS) 无法在FA上与银形成可检测的化学键,观察到粒子聚合和裸体表面.
结论:
- 活性飞灰显示了改善的表面性能,适合进一步修改.
- KH792是一种有效的西兰合剂,用于制造银飞灰复合材料.
- KH560和MTMS不适合通过这种方法在活性飞灰上实现强大的银粘附.
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