Sustainable Pultruded Sandwich Profiles with Mycelium Core

This research focuses on exploring the potential of mycelium as a sustainable alternative to wood or solid foam in pultruded glass fiber-reinforced plastic (GFRP) sandwich profiles. The study evaluates the performance and the environmental sustainability potential of this composite by mechanical tes...

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Main Authors: Marion Früchtl, Andreas Senz, Steffen Sydow, Jonas Benjamin Frank, Andrea Hohmann, Stefan Albrecht, Matthias Fischer, Maximilian Holland, Frederik Wilhelm, Henrik-Alexander Christ
Format: Article
Language:English
Published: MDPI AG 2023-07-01
Series:Polymers
Subjects:
Online Access:https://www.mdpi.com/2073-4360/15/15/3205
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author Marion Früchtl
Andreas Senz
Steffen Sydow
Jonas Benjamin Frank
Andrea Hohmann
Stefan Albrecht
Matthias Fischer
Maximilian Holland
Frederik Wilhelm
Henrik-Alexander Christ
author_facet Marion Früchtl
Andreas Senz
Steffen Sydow
Jonas Benjamin Frank
Andrea Hohmann
Stefan Albrecht
Matthias Fischer
Maximilian Holland
Frederik Wilhelm
Henrik-Alexander Christ
author_sort Marion Früchtl
collection DOAJ
description This research focuses on exploring the potential of mycelium as a sustainable alternative to wood or solid foam in pultruded glass fiber-reinforced plastic (GFRP) sandwich profiles. The study evaluates the performance and the environmental sustainability potential of this composite by mechanical tests and life cycle assessment (LCA). Analysis and comparison of pultruded sandwich profiles with mycelium, polyurethane (PUR) foam and chipboard demonstrate that mycelium is competitive in terms of its performance and environmental impact. The LCA indicates that 88% of greenhouse gas emissions are attributed to mycelium production, with the heat pressing (laboratory scale) being the main culprit. When pultruded profiles with mycelium cores of densities 350 and 550 kg/m³ are produced using an oil-heated lab press, a global warming potential (GWP) of 5.74 and 9.10 kg CO<sub>2</sub>-eq. per functional unit was calculated, respectively. When using an electrically heated press, the GWP decreases to 1.50 and 1.78 kg CO<sub>2</sub>-eq. Compared to PUR foam, a reduction of 23% in GWP is possible. In order to leverage this potential, the material performance and the reproducibility of the properties must be further increased. Additionally, an adjustment of the manufacturing process with in situ mycelium deactivation during pultrusion could further reduce the energy consumption.
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spelling doaj.art-28a4aab6b0eb4e24bfe36734f13d3e602023-11-18T23:28:00ZengMDPI AGPolymers2073-43602023-07-011515320510.3390/polym15153205Sustainable Pultruded Sandwich Profiles with Mycelium CoreMarion Früchtl0Andreas Senz1Steffen Sydow2Jonas Benjamin Frank3Andrea Hohmann4Stefan Albrecht5Matthias Fischer6Maximilian Holland7Frederik Wilhelm8Henrik-Alexander Christ9Fraunhofer Institute for Casting, Composite and Processing Technology IGCV, Am Technologiezentrum 2, 86159 Augsburg, GermanyFraunhofer Institute for Casting, Composite and Processing Technology IGCV, Am Technologiezentrum 2, 86159 Augsburg, GermanyFraunhofer Institute for Wood Research Wilhelm-Klauditz-Institut WKI, Riedenkamp 3, 38108 Braunschweig, GermanyFraunhofer Institute for Casting, Composite and Processing Technology IGCV, Am Technologiezentrum 2, 86159 Augsburg, GermanyFraunhofer Institute for Casting, Composite and Processing Technology IGCV, Am Technologiezentrum 2, 86159 Augsburg, GermanyFraunhofer Institute for Building Physics IBP, Nobelstraße 12, 70569 Stuttgart, GermanyFraunhofer Institute for Building Physics IBP, Nobelstraße 12, 70569 Stuttgart, GermanyFraunhofer Institute for Casting, Composite and Processing Technology IGCV, Am Technologiezentrum 2, 86159 Augsburg, GermanyFraunhofer Institute for Casting, Composite and Processing Technology IGCV, Am Technologiezentrum 2, 86159 Augsburg, GermanyFraunhofer Institute for Wood Research Wilhelm-Klauditz-Institut WKI, Riedenkamp 3, 38108 Braunschweig, GermanyThis research focuses on exploring the potential of mycelium as a sustainable alternative to wood or solid foam in pultruded glass fiber-reinforced plastic (GFRP) sandwich profiles. The study evaluates the performance and the environmental sustainability potential of this composite by mechanical tests and life cycle assessment (LCA). Analysis and comparison of pultruded sandwich profiles with mycelium, polyurethane (PUR) foam and chipboard demonstrate that mycelium is competitive in terms of its performance and environmental impact. The LCA indicates that 88% of greenhouse gas emissions are attributed to mycelium production, with the heat pressing (laboratory scale) being the main culprit. When pultruded profiles with mycelium cores of densities 350 and 550 kg/m³ are produced using an oil-heated lab press, a global warming potential (GWP) of 5.74 and 9.10 kg CO<sub>2</sub>-eq. per functional unit was calculated, respectively. When using an electrically heated press, the GWP decreases to 1.50 and 1.78 kg CO<sub>2</sub>-eq. Compared to PUR foam, a reduction of 23% in GWP is possible. In order to leverage this potential, the material performance and the reproducibility of the properties must be further increased. Additionally, an adjustment of the manufacturing process with in situ mycelium deactivation during pultrusion could further reduce the energy consumption.https://www.mdpi.com/2073-4360/15/15/3205sustainable compositepultrusionmyceliumlife cycle assessmentsandwichhybrid pultruded products
spellingShingle Marion Früchtl
Andreas Senz
Steffen Sydow
Jonas Benjamin Frank
Andrea Hohmann
Stefan Albrecht
Matthias Fischer
Maximilian Holland
Frederik Wilhelm
Henrik-Alexander Christ
Sustainable Pultruded Sandwich Profiles with Mycelium Core
Polymers
sustainable composite
pultrusion
mycelium
life cycle assessment
sandwich
hybrid pultruded products
title Sustainable Pultruded Sandwich Profiles with Mycelium Core
title_full Sustainable Pultruded Sandwich Profiles with Mycelium Core
title_fullStr Sustainable Pultruded Sandwich Profiles with Mycelium Core
title_full_unstemmed Sustainable Pultruded Sandwich Profiles with Mycelium Core
title_short Sustainable Pultruded Sandwich Profiles with Mycelium Core
title_sort sustainable pultruded sandwich profiles with mycelium core
topic sustainable composite
pultrusion
mycelium
life cycle assessment
sandwich
hybrid pultruded products
url https://www.mdpi.com/2073-4360/15/15/3205
work_keys_str_mv AT marionfruchtl sustainablepultrudedsandwichprofileswithmyceliumcore
AT andreassenz sustainablepultrudedsandwichprofileswithmyceliumcore
AT steffensydow sustainablepultrudedsandwichprofileswithmyceliumcore
AT jonasbenjaminfrank sustainablepultrudedsandwichprofileswithmyceliumcore
AT andreahohmann sustainablepultrudedsandwichprofileswithmyceliumcore
AT stefanalbrecht sustainablepultrudedsandwichprofileswithmyceliumcore
AT matthiasfischer sustainablepultrudedsandwichprofileswithmyceliumcore
AT maximilianholland sustainablepultrudedsandwichprofileswithmyceliumcore
AT frederikwilhelm sustainablepultrudedsandwichprofileswithmyceliumcore
AT henrikalexanderchrist sustainablepultrudedsandwichprofileswithmyceliumcore