Compatibility issues in high voltage DC cable insulation development

Bánhegyi, György

doi:10.1016/j.aiepr.2023.06.001

Cited by 2 publications

(1 citation statement)

References 55 publications

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“…Multicomponent polymer systems are made by mixing diverse polymers with different chemical structures, which complement each other, to achieve better performances and novel functionalities . Under the circumstances, strong interfacial interaction is a key issue for realizing the synergy effect among the components, which has attracted the continuous attention of academia and industry. − …”

Section: Introductionmentioning

confidence: 99%

Reversibly Interlocking of Immiscible Covalent Adaptive Networks in Solid State: A Paradigm for Enhancing Interfacial Interaction of Multicomponent Polymer Systems

You,

Wang,

Rong

et al. 2023

Macromolecules

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The authors of this work propose the construction of reversibly interlocked macromolecular networks (RILNs) at the interface between immiscible polymers to address the common challenge arising from compounding different polymers together. The proof-of-concept model system is made by stacking crosslinked polyether and styrene−butadiene block copolymer, which, respectively, contain reversible Schiff base and Diels−Alder (DA) bonds. By taking advantage of the synergy between the topological rearrangement of the dynamic networks and migration of the preembedded zinc ion catalyst, interdiffusion and interlocking of the temporarily de-cross-linked macromolecular chains can be purposely synchronized. Consequently, the envisaged interfacial RILNs with decent mechanical properties are successfully prepared in the solid state, which is an advancement over traditional RILNs that have to be made with the assistance of solvent. The resulting interfacial binding is tight and reversible because of the massive chain entanglements in the interfacial region and the degradability of dynamic networks as well. It is anticipated that the methodology discussed in the paper would hopefully be developed into a facile technique for the fabrication of high-performance polymer blends regardless of the miscibility of the raw materials.

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Section: Introductionmentioning

confidence: 99%

Reversibly Interlocking of Immiscible Covalent Adaptive Networks in Solid State: A Paradigm for Enhancing Interfacial Interaction of Multicomponent Polymer Systems

You,

Wang,

Rong

et al. 2023

Macromolecules

View full text Add to dashboard Cite

show abstract

Alternative Concepts for Extruded Power Cable Insulation: from Thermosets to Thermoplastics

Pourrahimi,

Mauri,

D'Auria

et al. 2024

Advanced Materials

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The most common type of insulation of extruded high‐voltage power cables is composed of low‐density polyethylene (LDPE), which must be crosslinked to adjust its thermomechanical properties. A major drawback is the need for hazardous curing agents and the release of harmful curing byproducts during cable production, while the thermoset nature complicates reprocessing of the insulation material. This perspective explores recent progress in the development of alternative concepts that allow to avoid byproducts through either click chemistry type curing of polyethylene‐based copolymers or the use of polyolefin blends or copolymers, which entirely removes the need for crosslinking. Moreover, polypropylene‐based thermoplastic formulations enable the design of insulation materials that can withstand higher cable operating temperatures and facilitate reprocessing by remelting once the cable reaches the end of its lifetime. Finally, polyethylene‐based covalent and non‐covalent adaptable networks are explored, which may allow to combine the advantages of thermoset and thermoplastic insulation materials in terms of thermomechanical properties and reprocessability.

show abstract

Compatibility issues in high voltage DC cable insulation development

Cited by 2 publications

References 55 publications

Reversibly Interlocking of Immiscible Covalent Adaptive Networks in Solid State: A Paradigm for Enhancing Interfacial Interaction of Multicomponent Polymer Systems

Reversibly Interlocking of Immiscible Covalent Adaptive Networks in Solid State: A Paradigm for Enhancing Interfacial Interaction of Multicomponent Polymer Systems

Alternative Concepts for Extruded Power Cable Insulation: from Thermosets to Thermoplastics

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