Synergistic effects of guanidine-grafted CMC on enhancing antimicrobial activity and dry strength of paper
| Autor: | Yaoguang Xu, Kai Liu, Lin Xinxing, Shilin Cao, Lihui Chen, Liulian Huang, Jian Li |
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| Rok vydání: | 2014 |
| Předmět: |
Paper
Staphylococcus aureus Polymers and Plastics Hydrochloride engineering.material chemistry.chemical_compound Coating Polymer chemistry Escherichia coli Materials Chemistry medicine Humans Guanidine Escherichia coli Infections Mechanical Phenomena Tensile testing chemistry.chemical_classification Organic Chemistry Food Packaging Polymer Staphylococcal Infections Antimicrobial Anti-Bacterial Agents Carboxymethyl cellulose Food packaging chemistry Carboxymethylcellulose Sodium engineering Oxidation-Reduction medicine.drug Nuclear chemistry |
| Zdroj: | Carbohydrate Polymers. 110:382-387 |
| ISSN: | 0144-8617 |
| DOI: | 10.1016/j.carbpol.2014.03.086 |
| Popis: | 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. |
| Databáze: | OpenAIRE |
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