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Polymers
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Polymer Composites for Electrical and Electronic Engineering Applications, 2nd Edition
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Polymer Composites for Electrical and Electronic Engineering Applications, 2nd Edition

A special issue of Polymers (ISSN 2073-4360). This special issue belongs to the section "Polymer Composites and Nanocomposites".

Deadline for manuscript submissions: closed (25 April 2025) | Viewed by 2664

Special Issue Editor

Dr. Shaojian He

E-Mail Website
Guest Editor
Beijing Key Laboratory of Energy Safety and Clean Utilization, North China Electric Power University, Beijing 102206, China
Interests: polymer insulation materials; high-performance rubber nanocomposites; energy materials
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

We cordially invite you to submit your research papers, communications, or review articles to the Special Issue entitled “Polymer Composites for Electrical and Electronic Engineering Applications.”

Polymer composite materials have attracted great interest for the development of electrical and electronic engineering and technology and have been widely applied in electrical power systems, electrical insulation equipment, electrical and electronic devices, etc. Due to the significant expansion in the use of newly developed polymer composite materials, it is necessary to understand and accurately describe the relationship between composite structure and material properties. It is possible to estimate the properties for their future commercial applications solely via thorough laboratory characterization.

This Special Issue focuses on polymer composites applied in the field of electrical and electronic equipment, including (but not limited to) the synthesis and preparation of new polymeric materials, the structure–property relationship of polymer composites, the evaluation of material application, simulation, and modeling of material performance.

We look forward to receiving your outstanding work for this Special Issue.

Dr. Shaojian He
Guest Editor

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Polymers is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2700 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • polymer composite
  • electrical insulation
  • electronic materials
  • electromagnetic shielding
  • dielectric properties
  • mechanical properties
  • heat dissipation
  • breakdown
  • aging

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Published Papers (2 papers)

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Research

30 pages, 13451 KiB  
Article
Nanocomposites Based on Disentangled Ultra-High Molecular Weight Polyethylene: Aspects and Specifics of Solid-State Processing
by Oleg V. Lebedev, Ekaterina P. Tikunova, Tikhon S. Kurkin, Evgeny K. Golubev and Alexander N. Ozerin
Polymers 2024, 16(23), 3423; https://doi.org/10.3390/polym16233423 - 5 Dec 2024
Viewed by 844
Abstract
The stages of solid-state processing of nanocomposites, based on nascent disentangled ultra-high-molecular-weight polyethylene (d-UHMWPE) reactor powders (RPs) and carbon nanoparticles (NPs) of various types, were meticulously investigated. The potential for optimizing the filler distribution through variation of the processing parameters, and the impact [...] Read more.
The stages of solid-state processing of nanocomposites, based on nascent disentangled ultra-high-molecular-weight polyethylene (d-UHMWPE) reactor powders (RPs) and carbon nanoparticles (NPs) of various types, were meticulously investigated. The potential for optimizing the filler distribution through variation of the processing parameters, and the impact of the d-UHMWPE RP and nanofiller type on the electrical conductivity of the resulting composites were discussed. The specifics of the dependences of conductivity and tensile strength on the deformation ratio for the composites, oriented under homogeneous shear conditions, were investigated. The obtained results and the results on piezoresistivity and temperature dependency of conductivity in the oriented and compacted composites demonstrated the independence of the UHMWPE matrix orientational strengthening on the filling. The interchangeability of high-temperature uniaxial deformation and deformation under homogeneous conditions for orientational strengthening and electrical conductivity changes in the preliminary oriented composite samples was confirmed. The potential for simultaneously achieving high strength and conductivity in composite tapes and the possibility of directly processing d-UHMWPE RP and NPs mixtures into oriented composite tapes were demonstrated. The overall results suggest that the studied composites may serve as a viable model system for investigating the deformational behavior of conductive networks comprising NPs of varying types and contents. Full article
(This article belongs to the Special Issue Polymer Composites for Electrical and Electronic Engineering Applications, 2nd Edition)
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14 pages, 2002 KiB  
Article
Study on the Aging Characteristics of a ±500 kV Composite Dead-End Insulator in Longtime Service
by Zhijin Zhang, Bingbing Wang, Xuze Li, Shude Jing, Yuan Gao, Dong Zeng and Xingliang Jiang
Polymers 2024, 16(13), 1944; https://doi.org/10.3390/polym16131944 - 8 Jul 2024
Viewed by 1191
Abstract
Composite insulators have been widely used in power grids due to their excellent electrical-external-insulation performance. Long-term operation at high voltage levels accelerates the aging of composite insulators; however, there is a scarcity of research on aged composite insulators operating at 500 kV for [...] Read more.
Composite insulators have been widely used in power grids due to their excellent electrical-external-insulation performance. Long-term operation at high voltage levels accelerates the aging of composite insulators; however, there is a scarcity of research on aged composite insulators operating at 500 kV for over ten years. In this paper, the mechanical, electrical, and microscopic properties were tested on different sheds along a 500 kV composite insulator that had been running for 18 years. Additionally, the results were compared with a new insulator and the standards for live insulator operation. The results showed that the aging of the high-voltage end of composite insulators was the most serious. The results of the physical properties test indicated that the insulator’s hardness was compliant but its tensile strength and break elongation did not meet standards. Under wet conditions, the pollution flashover voltage decreases by about 50% compared to the new insulator. Combined with the microscopic test results, the shed skeleton structure could be damaged and the filler might be lost during the aging process of polydimethylsiloxane (PDMS). The hardness of the insulator would increase by the precipitation of inorganic silicon; however, inorganic silicon might destroy the hydrophobicity and other properties of insulator sheds. These results can provide theoretical references for insulator life prediction and operation protection. Full article
(This article belongs to the Special Issue Polymer Composites for Electrical and Electronic Engineering Applications, 2nd Edition)
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