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Enhancing moisture resistance of starch-coated paper by improving the film forming capability of starch film.
- Source :
-
Industrial Crops & Products . Jun2017, Vol. 100, p12-18. 7p. - Publication Year :
- 2017
-
Abstract
- Starch-coated paper is widely used in packaging, printing, writing, and so on. However, achieving starch-coated paper with excellent moisture resistance remains a challenge for its end uses. To overcome this challenge, we hypothesize that the film-forming ability of starch plays a pivotal role in the moisture resistance of starch-coated paper. Polyvinyl alcohol (PVA) is used to enhance the film-forming capability of starch film and the moisture resistance of PVA/CS coated paper is evaluated in terms of moisture absorption, tensile index, and stiffness. A PVA/CS film with only a coating weight of 4.0 g/m 2 can fully cover the porous structure of paper that leads to a higher moisture resistance than CS-coated paper with a similar loading weight. However, as the coating weight continues to increase, the decline of the mechanical properties of PVA/CS coated paper is almost unchanged. Furthermore, the moisture resistance of PVA/CS coated paper (coating weight is larger than 4.0 g/m 2 ) is further improved by using glyoxal as moisture proof agent (MPA). Only 4.8% and 6.3% losses in the tensile index and stiffness at a coating weight of 4.0 g/m 2 are achieved before and after moisture treatment, respectively. These results may shed light on exploring new method to enhance moisture resistance of starch-coated paper. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 09266690
- Volume :
- 100
- Database :
- Academic Search Index
- Journal :
- Industrial Crops & Products
- Publication Type :
- Academic Journal
- Accession number :
- 121753606
- Full Text :
- https://doi.org/10.1016/j.indcrop.2017.02.013