Journal
ENERGIES
Volume 14, Issue 10, Pages -Publisher
MDPI
DOI: 10.3390/en14102758
Keywords
polymeric material; thermoplastic; thermoset; elastomer; epoxy resin; electrical properties; mechanical properties; high-voltage applications; partial discharges
Categories
Funding
- Agencia Nacional de Investigacion y Desarrollo (ANID) [Fondecyt regular 1200055, Fondef ID19I10165]
- UTFSM [PI_m_19_01]
- Ministry of Higher Education (MOHE), Malaysia via Universiti Teknologi Malaysia (UTM) [Q.K130000.3556.06G43]
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This paper reviews the applications of thermoplastic, thermoset polymers and their functions, presents the synthetic routes and characteristics of polymeric materials, discusses their mechanical and thermal properties, as well as their electrical behavior for insulation purposes. The evolution, limitations, advantages, and future trends of polymeric materials in electrical applications are also mentioned, along with the need for developing new techniques to reduce costs and improve technical properties.
In this paper, the applications of thermoplastic, thermoset polymers, and a brief description of the functions of each subsystem are reviewed. The synthetic route and characteristics of polymeric materials are presented. The mechanical properties of polymers such as impact behavior, tensile test, bending test, and thermal properties like mold stress-relief distortion, generic thermal indices, relative thermal capability, and relative thermal index are mentioned. Furthermore, this paper covers the electrical behavior of polymers, mainly their dielectric strength. Different techniques for evaluating polymers' suitability applied for electrical insulation are covered, such as partial discharge and high current arc resistance to ignition. The polymeric materials and processes used for manufacturing cables at different voltage ranges are described, and their applications to high voltage DC systems (HVDC) are discussed. The evolution and limitations of polymeric materials for electrical application and their advantages and future trends are mentioned. However, to reduce the high cost of filler networks and improve their technical properties, new techniques need to be developed. To overcome limitations associated with the accuracy of the techniques used for quantifying residual stresses in polymers, new techniques such as indentation are used with higher force at the stressed location.
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