Ceramic / inorganic-organic nano-hybrid composites for thermally stable insulation of electrical wires. Part II: Properties of the composite insulated wires
Ceramic / inorganic-organic nano-hybrid composites for thermally stable insulation of electrical wires. Part II: Properties of the composite insulated wires
复制标题
用于电线热稳定绝缘的陶瓷/无机-有机纳米杂化复合材料。
DOI：
10.1109/tdei.2019.008380
复制
发表时间：
2020
影响因子：
3.1
通讯作者：
S. Hodgson
中科院分区：
文献类型：
--
作者：
Y. Pang;S. Hodgson
该论文第I部分报告了用新型复合涂层绝缘的耐高温电线的制造，所述复合涂层包括颗粒陶瓷和含硅无机-有机纳米杂化物。本文根据国家有关标准，对复合绝缘线的热性能、机械性能和介电性能进行了研究。材料表征技术也被应用于提供信息，以更好地了解涂层的性能作为电线绝缘。结果表明，该绝缘线具有中等的绝缘强度和良好的热稳定性，在500°C下绝缘持续时间超过100天，在450°C下持续高温老化，热循环20次后绝缘性能无明显下降。绝缘电线表现出良好的机械性能，具有临时柔性，允许1.2 mm绝缘电线的最小弯曲半径为3 mm。耐磨性和抗切割性也足以满足大多数实际应用。
The paper Part I reported on the fabrication of high temperature capable electrical wires insulated with a new type of composite coatings comprising particulate ceramics and silicon-containing inorganic-organic nano-hybrids. This second paper studies the thermal, mechanical and dielectric properties of these composite insulated wires in accordance with relevant national standards. Techniques for materials characterization were also applied to provide information for better understanding the coatings' performance as wire insulation. Results showed that insulated wires have moderate dielectric strength comparable to ceramic insulation and excellent thermal stability, with insulation sustained for over 100 days at 500°C and prolonged period at 450°C under constant high temperature ageing and there is no obvious insulation degradation after thermal cycling for 20 times. The insulated wires demonstrated good mechanical properties, with interim flexibility allowing a minimal bending radius of 3 mm for 1.2 mm insulated wires. The resistance to abrasion and cutting through are also good enough to satisfy most practical applications.