A solution blown superporous nonwoven hydrogel based on hydroxypropyl cellulose
Journal article, 2020

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.

Author

Ting Yang Nilsson

Linköping University

RISE Research Institutes of Sweden

Markus Andersson Trojer

RISE Research Institutes of Sweden

Chalmers, Chemistry and Chemical Engineering, Applied Chemistry, Lars Nordstierna Group

Soft Matter

1744-683X (ISSN) 1744-6848 (eISSN)

Vol. 16 29 6850-6861

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Subject Categories

Polymer Chemistry

Paper, Pulp and Fiber Technology

Polymer Technologies

DOI

10.1039/d0sm00724b

PubMed

32638815

More information

Latest update

9/23/2020