Polystyrene: A Self-Dispersing, Ultralow Loading Additive for Improving the Breakdown Strength of Polypropylene for High Voltage Power Cable Applications

Lee, Seong Hwan; Kim, Do-Kyun; Kwon, Ik-Su; Kwon, Tae Hoon; Park, Hoyyul; Han, Dong Hee; Han, Se Won; Lee, Jun Young; Lee, Dae Ho; Yu, Seunggun

doi:10.1021/acsapm.2c01375

Cited by 5 publications

(2 citation statements)

References 33 publications

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“…The results show that the PP/Ac-SEBS blend have both higher AC and DC breakdown strength than that of PP/SEBS blend. Lee et al chose atactic polystyrene (aPS) as a thermoplastic macromolecule voltage stabiliser [103]. It is found that the smaller amount of aPS doping can significantly increase the breakdown strength of iPP, even at ultralow loading levels below 0.01 phr, which shows obviously higher action efficiency than directly adding small molecule voltage stabilisers.…”

Section: Modification Of Polypropylene Based On Voltage Stabilizermentioning

confidence: 99%

Eco‐friendly polypropylene power cable insulation: Present status and perspective

Yang

et al. 2023

IET Nanodielectrics

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Environmental protection is the future trend of power equipment development, and is also a research hotspot in the field of power cable insulation in recent years. Due to the excellent electrical properties and recyclability, polypropylene (PP) based composites are regarded as promising insulating materials for eco‐friendly next‐generation power cables. However, the high modulus and hardness of pure PP make it difficult to be directly employed as cable insulations, which needs to be further optimised. General methods of mechanical performance regulation often result in the deterioration of electrical performance, such as breakdown strength, space charge and so on. Therefore, it is recognised that the major challenge impeding practical applications of PP power cable insulation arises from the synergetic regulation of multi‐performances. The multi‐level structures influencing the multi‐performances of PP are introduced by the authors and the researches on the performance enhancement of PP through nanoscale structure regulation in recent years are reviewed in detail. Seven kinds of modification methods including nano‐doping, chemical grafting, in‐suit copolymerisation, heat treatment, nucleating agent, voltage stabiliser and elastomer blending are paid special attention. Based on the full understanding of the research status, the challenges and issues of future research are put forward for eco‐friendly PP power cable insulation.

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Section: Modification Of Polypropylene Based On Voltage Stabilizermentioning

confidence: 99%

Eco‐friendly polypropylene power cable insulation: Present status and perspective

Yang

et al. 2023

IET Nanodielectrics

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“…These radicals 2 of 18 create cross-links and a network structure in the polymer [1]. XLPE is used as an electrical insulating material due to its hydrolysis resistance, high insulation properties, abrasion resistance, and excellent mechanical properties [2][3][4][5][6]. In addition, it is used in piping systems for chemical storage, in heating and cooling systems, etc., due to its high extrusion speed and low cost.…”

Section: Introductionmentioning

confidence: 99%

Chemical Property Evaluation and Tensile Strength Correlation of XLPE Insulators Based on Accelerated Thermal Aging

Kwak,

Jeon,

Kim

et al. 2023

Applied Sciences

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Cross-linked polyethylene (XLPE) cable is a representative power transmission cable. XLPE has excellent mechanical properties, chemical and heat resistance, and insulation. However, XLPE insulation deteriorates during operation due to electrical, mechanical, and thermal stresses. Among these, thermal stress is a major factor and reduces insulation properties due to a change in molecular structure. Therefore, XLPE characteristic evaluation by heat exposure is essential for power cable condition evaluation. Herein, deteriorated XLPE samples were characterized by tensile strength, X-ray diffraction, Fourier-transform infrared spectroscopy, differential scanning calorimetry, and ultraviolet-visible spectroscopy after exposure to various temperatures and durations. Comparing the tensile strength with other analysis results yielded correlations. Each characteristic showed a linear relationship. The correlation between tensile strength and carbonyl index was the strongest, and the coefficient of determination, R2, was 0.9299. Therefore, these results will provide important information on chemical properties when establishing operational management standards for XLPE insulators in the future.

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Temperature Field Simulations of Three-Layer Extrusion in 110 kV Grafted Polypropylene Power Cables

Wu,

Huang,

et al. 2023

Lecture Notes in Electrical Engineering

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Polystyrene: A Self-Dispersing, Ultralow Loading Additive for Improving the Breakdown Strength of Polypropylene for High Voltage Power Cable Applications

Cited by 5 publications

References 33 publications

Eco‐friendly polypropylene power cable insulation: Present status and perspective

Eco‐friendly polypropylene power cable insulation: Present status and perspective

Chemical Property Evaluation and Tensile Strength Correlation of XLPE Insulators Based on Accelerated Thermal Aging

Temperature Field Simulations of Three-Layer Extrusion in 110 kV Grafted Polypropylene Power Cables

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