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  • Zhao, WeiUppsala universitet,RISE,Material- och ytdesign,Uppsala University, Sweden,Fasta tillståndets elektronik,RISE Research Institutes of Sweden (author)

Surfactant-free starch-graphene composite films as simultaneous oxygen and water vapour barriers

  • Article/chapterEnglish2022

Publisher, publication year, extent ...

  • 2022-03-18
  • Nature Research,2022
  • printrdacarrier

Numbers

  • LIBRIS-ID:oai:DiVA.org:ri-59006
  • https://urn.kb.se/resolve?urn=urn:nbn:se:ri:diva-59006URI
  • https://doi.org/10.1038/s41699-022-00292-xDOI
  • https://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-465002URI

Supplementary language notes

  • Language:English
  • Summary in:English

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  • Subject category:ref swepub-contenttype
  • Subject category:art swepub-publicationtype

Notes

  • Funding details: Stiftelsen för Strategisk Forskning, SSF, FID-15-0105; Funding text 1: This work was financially supported by the Swedish Foundation for Strategic Research (SSF, grant no. FID-15-0105) and BillerudKorsnäs AB. The authors thank Karin Hallstensson for support with the SEM imaging, Mikael Sundin for performing the XPS analysis and Marie Ernstsson for interpreting the data, Andreas Fall and Niklas Nordgren for insightful discussions and review of the manuscript.; Funding text 2: This work was financially supported by the Swedish Foundation for Strategic Research (SSF, grant no. FID-15-0105) and BillerudKorsna?s AB. The authors thank Karin Hallstensson for support with the SEM imaging, Mikael Sundin for performing the XPS analysis and Marie Ernstsson for interpreting the data, Andreas Fall and Niklas Nordgren for insightful discussions and review of the manuscript.
  • A single coating formulation for multifunctional composites, such as a gas barrier against both oxygen and water vapour, is the holy grail for the packaging industry. Since the last decade, graphene has been touted as the ideal barrier material in composites due to its morphology and impermeability to all gases. However, this prospect is limited by either poor dispersion of graphene or excess surfactants to aid the dispersion, both leading to shortcuts that allow gas permeation through the composite. Here, we demonstrate a combined gas barrier with starch-graphene composite films made from a single formulation of surfactant-free starch nanoparticle-stabilized graphene dispersion (2.97 mg mL−1). Hence, the incorporated graphene reduces the permeability of both the oxygen and the water vapour by over 70% under all the relative humidity conditions tested. Moreover, these films are foldable and electrically conductive (9.5 S m−1). Our surfactant-free approach of incorporating graphene into an industrially important biopolymer is highly relevant to the packaging industry, thus offering cost-effective and water-based solution depositions of multifunctional composite films for wide-ranging applications, such as gas barriers in food packaging. © 2022, The Author(s).

Subject headings and genre

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  • Sugunan, AbhilashRISE,Material- och ytdesign,RISE Research Institutes of Sweden(Swepub:ri)AbhilashSu@ri.se (author)
  • Gillgren, ThomasBillerudKorsnäs AB, Sweden (author)
  • Larsson, Johan ABillerudKorsnäs AB,Sweden,RISE Research Institutes of Sweden (author)
  • Zhang, Zhi-BinUppsala universitet,Fasta tillståndets elektronik(Swepub:uu)zhizh813 (author)
  • Zhang, Shi-LiUppsala universitet,Fasta tillståndets elektronik(Swepub:uu)shizh725 (author)
  • Sommertune, JensRISE,RISE Research Institutes of Sweden(Swepub:ri)jens.sommertune@ri.se (author)
  • Dobryden, IlliaRISE,Material- och ytdesign,RISE Research Institutes of Sweden(Swepub:ri)illiado@ri.se (author)
  • Ahniyaz, AnwarRISE,Material- och ytdesign(Swepub:ri)AnwarAh@ri.se (author)
  • RISEMaterial- och ytdesign (creator_code:org_t)

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