Ecoefficiency of Thermal Insulation Sandwich Panels Based On Fly Ash Modified with Colloidal Mesoporous Silica
Document identifier: oai:DiVA.org:ltu-77121
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10.1021/acssuschemeng.9b05726Keyword: Engineering and Technology,
Industrial Biotechnology,
Bioprocess Technology,
Teknik och teknologier,
Industriell bioteknik,
Bioprocessteknik,
Ecoefficiency,
Thermal insulation sandwich panels,
Colloidal mesoporous silica,
Municipal solid waste incineration fly ash,
Life cycle assessment,
Life cycle costing,
Lignin−epoxy resin,
Biokemisk processteknik,
Biochemical Process EngineeringPublication year: 2019Relevant Sustainable Development Goals (SDGs):
The SDG label(s) above have been assigned by OSDG.aiAbstract: The current practice of landfilling fly ash generated by waste incineration is nonsustainable, so alternative ways of using this material are needed. Silanization effectively immobilizes the heavy metal contaminants in the incineration fly ash and enables its circular utilization because silanized fly ash (SFA) has market value as a low-cost filler for polymer composites. This study examines the ecoefficiency of a thermal insulation panel that consists of a polyurethane (PU) foam core sandwiched between two epoxy composite skins prepared by reinforcing glass fibers (GF) and SFA in epoxy resin. The ecoefficiency of such panels was evaluated by comparing their life cycle environmental externality costs (LCEE) to their life cycle costs (LCC). The LCEE was calculated by monetizing the panels’ environmental impacts, which were quantified by performing a life cycle assessment (LCA). The results revealed that the ecoefficiency of the composite panels is positive (47%) and superior to that of market incumbent alternatives with PU foam or rockwool cores and steel skins. The two market incumbents have negative ecoefficiencies, primarily due to their high LCEE. The environmental performance of the panel with SFA–GF epoxy composite skins can be further improved by using lignin-based epoxy resin or thermoplastic polypropylene as the polymer matrix of composite skins. Overall, application as a filler in fabricating polymer composite skins of sandwich panels is an upcycling pathway of SFA that combines circular economy prospects with sustainability benefits.
Authors
K. Shanmugam
Department of Chemistry, Umeå University, Umeå, Sweden
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S. Jansson
Department of Chemistry, Umeå University, Umeå, Sweden
Other publications
>>
V. Gadhamshetty
Civil and Environmental Engineering, South Dakota School of Mines and Technology, Rapid City, SD, United States. Surface Engineering Research Center, South Dakota School of Mines and Technology, Rapid City, SD, United States
Other publications
>>
Leonidas Matsakas
Luleå tekniska universitet; Kemiteknik
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>>
Ulrika Rova
Luleå tekniska universitet; Kemiteknik
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>>
M. Tysklind
Department of Chemistry, Umeå University, Umeå, Sweden
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>>
Paul Christakopoulos
Luleå tekniska universitet; Kemiteknik
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>>
V.K.K. Upadhyayula
Department of Chemistry, Umeå University, Umeå, Sweden
Other publications
>>
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header:
identifier: oai:DiVA.org:ltu-77121
datestamp: 2021-04-19T12:40:33Z
setSpec: SwePub-ltu
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recordCreationDate: 2019-12-10
identifier:
http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-77121
10.1021/acssuschemeng.9b05726
2-s2.0-85075697945
titleInfo:
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lang: eng
title: Ecoefficiency of Thermal Insulation Sandwich Panels Based On Fly Ash Modified with Colloidal Mesoporous Silica
abstract: The current practice of landfilling fly ash generated by waste incineration is nonsustainable so alternative ways of using this material are needed. Silanization effectively immobilizes the heavy metal contaminants in the incineration fly ash and enables its circular utilization because silanized fly ash (SFA) has market value as a low-cost filler for polymer composites. This study examines the ecoefficiency of a thermal insulation panel that consists of a polyurethane (PU) foam core sandwiched between two epoxy composite skins prepared by reinforcing glass fibers (GF) and SFA in epoxy resin. The ecoefficiency of such panels was evaluated by comparing their life cycle environmental externality costs (LCEE) to their life cycle costs (LCC). The LCEE was calculated by monetizing the panels’ environmental impacts which were quantified by performing a life cycle assessment (LCA). The results revealed that the ecoefficiency of the composite panels is positive (47%) and superior to that of market incumbent alternatives with PU foam or rockwool cores and steel skins. The two market incumbents have negative ecoefficiencies primarily due to their high LCEE. The environmental performance of the panel with SFA–GF epoxy composite skins can be further improved by using lignin-based epoxy resin or thermoplastic polypropylene as the polymer matrix of composite skins. Overall application as a filler in fabricating polymer composite skins of sandwich panels is an upcycling pathway of SFA that combines circular economy prospects with sustainability benefits.
subject:
@attributes:
lang: eng
authority: uka.se
topic:
Engineering and Technology
Industrial Biotechnology
Bioprocess Technology
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lang: swe
authority: uka.se
topic:
Teknik och teknologier
Industriell bioteknik
Bioprocessteknik
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lang: eng
topic: Ecoefficiency
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lang: eng
topic: Thermal insulation sandwich panels
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lang: eng
topic: Colloidal mesoporous silica
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lang: eng
topic: Municipal solid waste incineration fly ash
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lang: eng
topic: Life cycle assessment
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lang: eng
topic: Life cycle costing
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lang: eng
topic: Lignin−epoxy resin
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lang: swe
authority: ltu
topic: Biokemisk processteknik
genre: Research subject
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lang: eng
authority: ltu
topic: Biochemical Process Engineering
genre: Research subject
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publication/journal-article
ref
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Published
8
Validerad;2020;Nivå 2;2020-02-25 (johcin)
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Shanmugam
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dateIssued: 2019
publisher: American Chemical Society (ACS)
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