THERMAL SCIENCE

International Scientific Journal

Jingjing Shi

,

Enlong Yang

POST-ELECTROSPINNING CROSSLINKING OF GUAR/POLYVINYL ALCOHOL MEMBRANE

ABSTRACT
College of Material and Textile Engineering, Jiaxing University, Jiaxing, China The present study reports post-electrospinning crosslinking of guar/polyvinyl alcohol (PVA)/citric acid nanofiber membranes by heat treatment. Porous, interconnected nonwoven nanofiber membranes (average diameter 194±23 nm) were electrospun from a homogeneous blend of 1wt% guar gum and 8wt% polyvinyl alcohol solution (3:7 weight ratio) containing 5 wt% (by the total weight of the solution) citric acid. The electrospun nanofiber membranes were then cured at 140 oC for 2 h. The crosslinked nanofiber membranes were insoluble in water, while the non-crosslinked membranes dissolved instantaneously. FT-IR spectrum investigates that crosslinking of guar/PVA occurred through esterfication reaction during heat treatment.
KEYWORDS
guar, post-electrospinning, crosslinking, nanofiber membrane, heat treatment
PAPER SUBMITTED: 2014-12-25
PAPER REVISED: 2015-05-05
PAPER ACCEPTED: 2015-05-07
PUBLISHED ONLINE: 2015-06-07
DOI REFERENCE: https://doi.org/10.2298/TSCI141225076S
CITATION EXPORT: view in browser or download as text file
THERMAL SCIENCE YEAR 2016, VOLUME 20, ISSUE No. 1, PAGES [1 - 5]
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Post-electrospinning crosslinking of guar/polyvinyl alcohol membrane

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