通过Silane合剂增强碳黑/复合材料的电力反应
Yanfang Zhao1,2,3, Yang Yang1,2,3, Bangwei Wan1,2,3
1Faculty of Civil Engineering and Mechanics, Kunming University of Science and Technology, Kunming 650500, China.
Molecules (Basel, Switzerland)
|June 27, 2024
概括
研究人员开发了一种新的碳黑/甲基乙烯复合复合材料,用于灵活的应变传感器. 这种材料消除了阻力反应中的有问题的肩部峰值,增强了带有健康监测的地震隔离.
科学领域:
- 材料科学 材料科学 材料科学
- 传感器技术 传感器技术
- 结构健康监测 结构健康监测
背景情况:
- 灵活的应变传感器对于监测地震隔离轴承至关重要.
- 具有肩尖的非单调电阻反应阻碍了实际的工程应用.
研究的目的:
- 为了消除柔性应变传感器中的肩部峰值现象.
- 提高用于地震隔离轴承的应变传感器的性能和适用性.
主要方法:
- 使用西兰合剂 (KH550) 修改碳黑 (CB) /甲基乙烯 (VMQ) 复合材料.
- 对电阻应变反应和机械性能的分析.
- 评估传感器稳定性和可重复性超过18000个周期.
- 应用道效应理论模型来解释响应机制.
主要成果:
- 添加KH550成功地消除了阻力反应中的肩峰现象.
- 观察到增强的机械性能和降低的透值.
- 复合材料具有出色的应变感应特性,稳定性和可重复性.
- 通过理论建模阐明了阻力-应变反应机制.
结论:
- 修改后的CB/VMQ复合材料有效地克服了传统应变传感器的局限性.
- 开发的传感器显示了对地震隔离轴承可靠健康监测的重大承诺.
- 这一进步有助于提高土木工程应用中的安全性和性能.
相关概念视频
01:23Abrasion Resistance of Concrete
125
Abrasion resistance is an essential characteristic of concrete that determines its durability and longevity under various wear conditions. Concrete surfaces are vulnerable to different types of abrasion. For instance, surfaces may wear down due to the constant movement of vehicles or be eroded by solids carried in water, as seen in concrete canal linings. Specific tests are conducted to measure the abrasion resistance of concrete.
One such test is the revolving disc test, where three plates...
One such test is the revolving disc test, where three plates...
125
01:29Additives and Fillers in Concrete
93
Additives and fillers are integral to enhancing the properties of concrete. Pozzolans and blast-furnace slag are additives or admixtures due to their reactions with calcium hydroxide released during cement hydration. Fillers, which are finely ground and similar in fineness to Portland cement, improve concrete attributes such as workability density, and reduce capillary bleeding or cracking. Some fillers possess hydraulic properties or participate in benign reactions within the cement paste.
The...
The...
93