Biobased foams for thermal insulation: material selection, processing, modelling, and performance Mort, Rebecca Vorst, Keith Curtzwiler, Greg Jiang, Shan
dc.contributor.department Ames National Laboratory
dc.contributor.department Food Science and Human Nutrition
dc.contributor.department Materials Science and Engineering
dc.contributor.department Industrial and Manufacturing Systems Engineering 2021-01-27T02:31:54.000 2021-02-26T03:30:06Z 2021-02-26T03:30:06Z Fri Jan 01 00:00:00 UTC 2021 2021-01-22
dc.description.abstract <p>With the urgent need for the development of sustainable materials and a circular economy, a surge of research regarding biobased materials and associated processing methods has resulted in many experimental biobased foams. Although several biobased foams are already shown to have thermal and mechanical properties competitive with expanded polystyrene, there remains a fundamental knowledge gap leading to limited understanding of the principles that determine performance. This review outlines the progress in this burgeoning field, introducing materials selection and processing, comparing performance, examining efforts in modelling physical properties, and discusses challenges in applying models to real biobased systems. The focus is on low thermal conductivity, which is a critical property for temperature-controlled applications such as packaging for refrigerated/frozen foods, medications, and vaccines as well as building materials. Currently, the trend in the field is moving towards fully biobased and compostable foams, though partially biobased polyurethane foams remain the most consistent performers. To illustrate the foam structure–property relationship, thermal conductivity, cell size, and density data were compiled. Given the complexity of biobased foams, heat transfer models aid in identifying crucial variables. However, data relevant to the insulation capability of biobased foams is not fully reported in many references. To address this issue, we employed a dimensional analysis to fill the gaps, revealing a power law correlation between thermal conductivity and relative density. Our approach is not intended as a robust prediction technique, but rather a simple demonstration of how biobased foams data could be utilized to predict the most promising materials and methods.</p>
dc.description.comments <p>This article is published as Mort, Rebecca, Keith Vorst, Greg Curtzwiler, and Shan Jiang. "Biobased foams for thermal insulation: material selection, processing, modelling, and performance." <em>RSC Advances</em> 11, no. 8 (2021): 4375-4394. DOI: <a href="" target="_blank">10.1039/D0RA09287H</a>. Posted with permission.</p>
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dc.identifier.articleid 1400
dc.identifier.contextkey 21283664
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dc.language.iso en
dc.source.bitstream archive/|||Fri Jan 14 23:56:37 UTC 2022
dc.source.uri 10.1039/D0RA09287H
dc.subject.disciplines Food Science
dc.subject.disciplines Polymer and Organic Materials
dc.title Biobased foams for thermal insulation: material selection, processing, modelling, and performance
dc.type article
dc.type.genre article
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