Journal
CARBOHYDRATE POLYMERS
Volume 110, Issue -, Pages 382-387Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.carbpol.2014.03.086
Keywords
Guanidine hydrochloride; Carboxymethyl cellulose; Antimicrobial activity; Strength property; Paper
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Funding
- Forestry Science and Technology Promotion Project of Fujian Province [[2013]14-2]
- Science and Technology Cooperation Project of Fuzhou Government and University [2013-G-81]
- Research Fund for Distinguished Young Talents of Fujian Agriculture and Forestry University [XJQ201213]
- Scientific Research Fund of Fujian Agriculture and Forestry University [6211C0813]
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In order to improve the strength property and antimicrobial activity of paper simultaneously, we prepared a novel multifunctional agent based on carboxymethyl cellulose (CMC) by a simple two-stage method. The first stage was the oxidation of CMC to obtain the dialdehyde CMC (DCMC), and the second stage was the graft of guanidine hydrochloride (GH) onto DCMC to obtain DCMC-GH polymer. The strength property and antimicrobial activity of DCMC-GH-coated copy paper have been studied by the tensile test and inhibition zone method, respectively. The results showed that the dry strength index could increase about 20% after the paper was coated with DCMC-GH. The coating of DCMC-GH on paper also resulted in excellent antimicrobial activities against Escherichia coli and Staphylococcus aureus, and the inhibition zone became larger as the GH content grafted on DCMC increased. The novel DCMC-GH polymer would be a multifunctional coating agent for food packaging paper. (C) 2014 Elsevier Ltd. All rights reserved.
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