关于纳米粘土改性二硫化物含有多尿素复合材料的介电性质的研究
Xinjian Li1, Fan Wang1, Haowen Yin1
1Lianyungang Power Supply Company, State Grid Jiangsu Electric Power Co., Ltd., Lianyungang 222000, China.
一种新的复合材料,Halloysite纳米管/含有二硫化物的聚尿素 (HNTs/DPU),为面对极端天气的输电线路提供了卓越的绝缘. 与传统选项相比,这种先进的材料表现出增强的热稳定性,疏水性和电损阻力.
科学领域:
- 材料科学 材料科学 材料科学
- 电气工程 电气工程
- 聚合物化学 聚合物化学
背景情况:
- 由于极端环境和传统绝缘材料的局限性,输电线路经常出现故障.
- 现有绝缘体的电介质性能不足,接口兼容性不佳.
研究的目的:
- 开发一种新型复合材料,用于在极端条件下增强输电线路绝缘.
- 通过功能化的Halloysite纳米管 (HNTs) 修饰的含有二硫化物的聚尿素 (DPU) 的合成和特征.
主要方法:
- 用aminopropyltriethoxysilane (APTES) 和DPU修改的HNTs的合成.
- 使用FTIR,SEM和DSC进行表征.
- 性能评估包括接触角度,断裂强度,电弧阻力,介电常数和塔间隙断裂测试.
主要成果:
- 对HNT的APTES修改确保了统一的微观结构和更好的接口兼容性.
- 与商业聚尿素 (CPU) 和商业绝缘 (CIS) 相比,HNT/DPU具有更高的热稳定性 (更高的Tg) 和疏水性.
- 复合材料表现出增强的断裂强度,介电常数和电弧阻力,在塔间隙测试中在4毫米厚度下具有最佳绝缘.
结论:
- 在恶劣的环境中,HNT/DPU为输电线路绝缘保护提供了一个可行的新解决方案.
- 该材料在现有绝缘材料上表现出显著的性能优势.
- 在DPU和功能化的HNT中,动态共价键有助于提高性能.
更多相关视频
10:35Using Microwave and Macroscopic Samples of Dielectric Solids to Study the Photonic Properties of Disordered Photonic Bandgap Materials
Published on: September 26, 2014
09:06The Effect of Construction and Demolition Waste Plastic Fractions on Wood-Polymer Composite Properties
Published on: June 7, 2020
相关概念视频
Capacitor With A Dielectric
Dielectrics are non-conducting materials with no free or loosely bound electrons. When a dielectric is...
Gauss's Law in Dielectrics
Physical and Chemical Properties of Matter
Classifying Matter by Composition
According to its composition, the matter can be classified into two broad categories — pure substances and mixtures.
A pure substance is a form of matter that has a constant composition throughout with uniform properties. For example, any sample of sucrose has the same composition and same physical properties, such as melting point, color, and sweetness, regardless of the source from which it is isolated.
A mixture is composed of two or...
Dielectric Polarization in a Capacitor
General Properties of Solutions
