Abstract
Enzymatically treated cellulose was dissolved in a
NaOH/ZnO solvent system and mixed together with
poly(ethylene-co-acrylic acid) (PE-co-AA) or
poly(acrylamide-co-acrylic acid) (PAA-co-AA) polymers, in
order to improve the properties of dissolved cellulose
and to prepare homogeneous cellulose-based blends for
films and coatings. The solution stage properties of the
blends were evaluated by rheological methods and the
precipitated dry blends were characterized by dynamic
mechanical analysis, differential scanning calorimetry,
and scanning electron microscopy. Paperboard coating
tests done at laboratory scale showed dissolved
cellulose/acrylic acid copolymer-based blends function
well as coating materials. All of the tested blends
showed a good resistance against grease in the coating
trials, having grease resistance from 60 to 69 days
despite a very thin (~2 µm) coating layer. In addition,
cellulose/PE-co-AA coating showed improved water vapor
and oxygen barrier properties when compared with neat
dissolved cellulose-coated paperboard
Original language | English |
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Article number | 40286 |
Journal | Journal of Applied Polymer Science |
Volume | 131 |
Issue number | 10 |
DOIs | |
Publication status | Published - 2014 |
MoE publication type | A1 Journal article-refereed |
Keywords
- copolymers
- blends
- cellulose
- coatings
- films