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Starch-poly(vinyl alcohol) barrier coatings for flexible packaging paper and their effects of phase interactions
Karlstads universitet, Fakulteten för hälsa, natur- och teknikvetenskap (from 2013), Institutionen för ingenjörs- och kemivetenskaper (from 2013).ORCID-id: 0000-0002-6832-0444
Karlstads universitet, Fakulteten för hälsa, natur- och teknikvetenskap (from 2013), Institutionen för ingenjörs- och kemivetenskaper (from 2013).ORCID-id: 0000-0002-1256-401X
Karlstads universitet, Fakulteten för hälsa, natur- och teknikvetenskap (from 2013), Institutionen för ingenjörs- och kemivetenskaper (from 2013).ORCID-id: 0000-0001-7368-7227
Karlstads universitet, Fakulteten för hälsa, natur- och teknikvetenskap (from 2013), Institutionen för ingenjörs- och kemivetenskaper (from 2013).ORCID-id: 0000-0002-1256-1708
2017 (engelsk)Inngår i: Progress in organic coatings, ISSN 0300-9440, E-ISSN 1873-331X, Vol. 111, s. 13-22Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

Starch and poly(vinyl alcohol) based barrier coatings for flexible packaging papers were studied. Both octenyl succinate modified and hydroxypropylated corn and potato starches were blended with regular and ethylene modified poly(vinyl alcohol) to increase the water vapor barrier properties and enhance the flexibility of the starch coatings, in order to accomplish superior barrier performance. Phase separation between starch and poly (vinyl alcohol) was studied in detail, both in the solution and in dry draw-down coatings on paper. The barrier performance of the coated paper was evaluated with respect to water vapor transmission rate. Conditions for the creation of a thin surface layer consisting of only one of the pure polymers were identified and discussed in terms of phase separation in solution migration of poly(vinyl alcohol) to the uppermost surface layer. The phase separation promoted low water vapor transmission rates also with a rather high fraction of starch in the coatings

sted, utgiver, år, opplag, sider
Elsevier, 2017. Vol. 111, s. 13-22
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Identifikatorer
URN: urn:nbn:se:kau:diva-65723DOI: 10.1016/j.porgcoat.2017.04.018ISI: 000407184600002OAI: oai:DiVA.org:kau-65723DiVA, id: diva2:1175665
Tilgjengelig fra: 2018-01-18 Laget: 2018-01-18 Sist oppdatert: 2019-07-10bibliografisk kontrollert

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Christophliemk, HannaUllsten, HenrikJohansson, CaisaJärnström, Lars

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