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Byproduct-free curi...
Byproduct-free curing of a highly insulating polyethylene copolymer blend: An alternative to peroxide crosslinking
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- Mauri, Massimiliano, 1987 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Peterson, Anna, 1988 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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Senol, Ayca, 1995 (author)
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- Elamin, Khalid, 1977 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Gitsas, Antonis (author)
- Borealis GmbH
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- Hjertberg, Thomas, 1951 (author)
- Borealis GmbH
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- Matic, Aleksandar, 1968 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Gkourmpis, Thomas (author)
- Borealis GmbH
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- Prieto, Oscar (author)
- Borealis GmbH
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- Müller, Christian, 1980 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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(creator_code:org_t)
- 2018
- 2018
- English.
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In: Journal of Materials Chemistry C. - : Royal Society of Chemistry (RSC). - 2050-7534 .- 2050-7526. ; 6:42, s. 11292-11302
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Abstract
Subject headings
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- High-voltage direct-current (HVDC) cables are a critical component of tomorrow's power grids that seamlessly integrate renewable sources of energy. The most advanced power cable technology uses crosslinked polyethylene (XLPE) insulation, which is produced by peroxide crosslinking of low-density polyethylene (LDPE). Peroxide crosslinking gives rise to hazardous byproducts that compromise the initially excellent purity and cleanliness of LDPE, and hence increase the electrical conductivity of the insulation material. Therefore, a byproduct-free curing process, which maintains the processing advantages and high electrical resistivity of LDPE, is in high demand. Here, we demonstrate a viable alternative to peroxide crosslinking that fulfils these requirements. Click chemistry reactions between two polyethylene copolymers allow the design of a curing process that is additive-free and does not result in the release of any byproducts. The thermoplastic copolymer blend offers a broad processing window up to 140 °C, where compounding and shaping can be carried out without curing. At more elevated temperatures, epoxy and acrylic acid functional groups rapidly react without byproduct formation to form an infusible network. Strikingly, the crosslinked copolymer blend exhibits a very low direct-current (DC) electrical conductivity of 2 × 10-16 S cm-1 at a typical cable operating temperature of 70 °C, which is on par with values measured for both ultra-clean LDPE and commercial XLPE. Hence, the use of polyethylene copolymer blends opens up the possibility to replace peroxide crosslinking with click chemistry type reactions, which may considerably expand the versatility of the most common type of plastic used today.
Subject headings
- NATURVETENSKAP -- Kemi -- Polymerkemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Polymer Chemistry (hsv//eng)
- TEKNIK OCH TEKNOLOGIER -- Kemiteknik -- Kemiska processer (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Chemical Engineering -- Chemical Process Engineering (hsv//eng)
- TEKNIK OCH TEKNOLOGIER -- Kemiteknik -- Polymerteknologi (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Chemical Engineering -- Polymer Technologies (hsv//eng)
- NATURVETENSKAP -- Fysik -- Annan fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Other Physics Topics (hsv//eng)
Keyword
- Electrical power transmission networks
- Blending
- Synthesis (chemical)
- HVDC power transmission insulation
- Peroxides
- Electrical conductivity
- Byproducts
- Cables
- Polymer blends
- Polyethylene
- Curing
- Oxidation
Publication and Content Type
- art (subject category)
- ref (subject category)
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Mauri, Massimili ...
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Peterson, Anna, ...
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Senol, Ayca, 199 ...
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Elamin, Khalid, ...
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Gitsas, Antonis
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Hjertberg, Thoma ...
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Matic, Aleksanda ...
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Gkourmpis, Thoma ...
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Prieto, Oscar
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Müller, Christia ...
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- About the subject
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Chemical Science ...
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and Polymer Chemistr ...
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- ENGINEERING AND TECHNOLOGY
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ENGINEERING AND ...
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and Chemical Enginee ...
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and Chemical Process ...
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- ENGINEERING AND TECHNOLOGY
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ENGINEERING AND ...
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and Chemical Enginee ...
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and Polymer Technolo ...
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Physical Science ...
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and Other Physics To ...
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Journal of Mater ...
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Chalmers University of Technology