电气器件用含碳组分聚合物复合材料的热物理特性

IF 0.6 Q4 ENGINEERING, GEOLOGICAL
Natalya N. Minakova, V. Ushakov
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引用次数: 0

摘要

引用链接:Minakova n.n., Ushakov V.Ya。电气器件用含碳组分聚合物复合材料的热物理特性。托木斯克理工大学公报。岩土工程Аssets, 2023,第334卷,第2期。6,рр.134 - 139。俄文。这项工作的相关性是由于需要进一步提高复合材料的性能-它们的可制造性,资源和能源效率。这类材料的范围正在扩大,除其他外,还包括石油和天然气资源的勘探和生产,因为它们有可能在很大范围内调节其性质。由含碳成分的聚合物材料制成的电阻和绝缘产品具有重量轻、成本低、原材料和工业制造技术可用性好的特点。在高温下用于电阻结构的填充聚合物的各种过程需要研究它们的热物理特性,这决定了材料中的传热过程。其中的热释放和热传递是在不同的层次上实现的:导电网格浸没在聚合物基体中。这使得研究热物理特征具有相关性,热物理特征是由广泛的参数形成的。目的:研究炭黑填充橡胶的热物理特性,以提高其在产品和结构中的使用效率;揭示碳组分对高分子复合材料热物理和结构特性的影响。方法:仪器测量材料的热物理特性,x射线衍射,统计和相关分析。结果。实验证实,热物理特性(热容量、导热系数、热扩散系数)取决于粘结剂基体的类型。分析了它们与粘结剂基材和复合材料物理性能的关系。建立了复合材料中粘结剂组分结晶度与热物理特性的依赖关系——随着聚合物中结晶相含量的增加,热容量、导热系数和热扩散系数增大。对于含碳成分的聚合物复合材料,根据结构的热状态的性质,例如,在非固定热状态下操作时,制定了选择粘合剂材料的建议。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
THERMOPHYSICAL CHARACTERISTICS OF POLYMERIC COMPOSITE MATERIALS WITH CARBON COMPONENTS FOR ELECTRICAL DEVICES
Link for citation: Minakova N.N., Ushakov V.Ya. Thermophysical characteristics of polymeric composite materials with carbon components for electrical devices. Bulletin of the Tomsk Polytechnic University. Geo Аssets Engineering, 2023, vol. 334, no. 6, рр.134-139. In Rus. The relevance of the work is caused by the need to further improve the properties of composite materials – their manufacturability, resource and energy efficiency. The scope of such materials is expanding, covering, among other things, the exploration and production of oil and gas resources, due to the possibility of regulating their properties over a wide range. Resistive and insulating products made of polymer materials with carbon components are characterized by low weight and cost, as well as the availability of raw materials and industrial manufacturing technology. The variety of processes in filled polymers used in resistive structures at elevated temperatures requires the study of their thermophysical characteristics, which determine the processes of heat transfer in the material. Heat release and heat transfer in them are realized at different levels: electrically conductive mesh immersed in a polymer matrix. This makes it relevant to study thermophysical characteristics, which are formed due to a wide range of parameters. Purpose: to study the thermophysical characteristics of rubbers filled with carbon black to increase the efficiency of their use in products and structures; to reveal the effect of carbon components on the thermophysical and structural characteristics of polymer composite materials. Methods: instrumental measurements of thermophysical characteristics of materials, X-ray diffraction, statistical and correlation analyses. Results. It was experimentally confirmed that thermophysical characteristics (heat capacity, thermal conductivity, thermal diffusivity) depend on the type of binder base. Their relationship with the physical properties of the binder base and composite material is analyzed. The dependence of thermophysical characteristics on the degree of crystallinity of the binder component in the composite material was established – with an increase in the content of the crystalline phase in the polymer, the heat capacity, thermal conductivity and thermal diffusivity increase. Recommendations are formulated for the selection of a binder material for polymer composite materials with carbon components, depending on the nature of the thermal regime of the structure, for example, when operating in non-stationary thermal regimes.
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来源期刊
CiteScore
1.40
自引率
50.00%
发文量
210
审稿时长
5 weeks
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