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A solution blown superporous nonwoven hydrogel based on hydroxypropyl cellulose
Linköping University, Department of Science and Technology, Laboratory of Organic Electronics. Linköping University, Faculty of Science & Engineering. RISE IVF, Sweden.
RISE IVF, Sweden; Chalmers Univ Technol, Sweden.
2020 (English)In: Soft Matter, ISSN 1744-683X, E-ISSN 1744-6848, Vol. 16, no 29, p. 6850-6861Article in journal (Refereed) Published
Abstract [en]

A superporous hydrogel - in which the interconnecting fibres themselves are hydrogels - based on hydroxypropyl cellulose (HPC) has been produced using the nonwoven solution blown technique. The nonwoven fibres were subsequently thermally crosslinked with citric acid as identified by esterbond formation using FT-IR spectroscopy. The gel fraction was approximately 70%. The superporous HPC hydrogel exhibited a very fast water absorption, reaching an equilibrium absorption (80% water content) within 30 seconds. The equilibrium absorption was strongly codependent on both the fibre thickness and the pore size whereas the absorption rate was correlated with the pore size as established using standard linearized regression analysis.

Place, publisher, year, edition, pages
ROYAL SOC CHEMISTRY , 2020. Vol. 16, no 29, p. 6850-6861
National Category
Polymer Technologies
Identifiers
URN: urn:nbn:se:liu:diva-168202DOI: 10.1039/d0sm00724bISI: 000553224100013PubMedID: 32638815OAI: oai:DiVA.org:liu-168202DiVA, id: diva2:1460223
Note

Funding Agencies|Swedish Research Council FORMASSwedish Research CouncilSwedish Research Council Formas [2016-61, 2018-02284]; VinnovaVinnova [2017-04693, 2019-04332]

Available from: 2020-08-22 Created: 2020-08-22 Last updated: 2020-08-22

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