Sago starch and its acrylamide modified products as coating material on handsheets made from recycled pulp fibers
This study was carried out to determine the suitability of sago starch as a paper additive. The basic properties (i.e., pH, viscosity, and solid content) of the 5% weight over volume basis of unmodified and modified sago starch (sago starch blended with acrylamide, sago starch grafted with acryl...
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| Main Authors: | , , , , |
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| Format: | Article |
| Language: | en |
| Published: |
Wiley Periodicals, Inc
2004
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| Subjects: | |
| Online Access: | http://ir.unimas.my/id/eprint/38409/3/Sago%20Starch%20-%20Copy.pdf http://ir.unimas.my/id/eprint/38409/ https://onlinelibrary.wiley.com/doi/10.1002/app.20793 https://doi.org/10.1002/app.20793 |
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| Summary: | This study was carried out to determine the
suitability of sago starch as a paper additive. The basic
properties (i.e., pH, viscosity, and solid content) of the 5% weight over volume basis of unmodified and modified sago
starch (sago starch blended with acrylamide, sago starch
grafted with acrylamide in an acidic and adjusted to alkaline conditions) were determined. The starches were then used to coat laboratory handsheets made from recycled pulp fibers. The incorporation of acrylamide into sago starch
through grafting significantly reduced the viscosity of the
solution. Generally, coating the handsheets with unmodified
sago starch significantly improved some properties as compared to the uncoated handsheets. Among the three types of sago starch modification methods, blending gave superior
performance when coated on the handsheets, except for
smoothness and air permeance, due to insufficient curing
shown by the micrographs. FTIR spectra showed that the
interactions between the blended acrylamide–starch solutions and the pulp fiber were weak. © 2004 Wiley Periodicals,
Inc. J Appl Polym Sci 94: 154 –158, 2004. |
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