期刊
CARBOHYDRATE POLYMERS
卷 142, 期 -, 页码 183-188出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.carbpol.2016.01.044
关键词
Cellulose nanocrystals; Ag nanoparticles; Beeswax; Antibacterial activity; Water resistance
资金
- NSERC [CRD 436613-12]
- Atlantic Innovation Fund [201222]
- Canada Research Chairs program of the Government of Canada [213263]
- Industrial Technology Key Project of Fujian Province [2014H0001]
- Natural Science Foundation of Fujian Province [2014J01070]
- Forestry Science and Technology Promotion Project of Fujian Province [[2013]14-2]
- Technology Project of Fujian provincial education department [JB13031]
- Science and Technology Cooperation Project of Fuzhou Government [2013-G-81]
- Science and Technology Cooperation Project of Fuzhou University [2013-G-81]
- Fujian Agriculture and Forestry University [XJQ201213]
An effective method of preparing composites containing inorganic (Ag) and organic (beeswax) particles was established in this study. Ag nanoparticles were first immobilized on the cellulose nanocrystals (CNC) during the reduction of AgNO3 in the presence of CNC, then mixed with beeswax by high speed stirring. Scanning transmission electron microscopy (STEM) images indicated that Ag and beeswax particles were uniformly dispersed and stable in the network structure formed by CNC. Upon coating on a paper surface, a layer of beeswax film was evident based on scanning electron microscopy (SEM) images. The dynamic contact angle and antibacterial activity tests indicated that the contact angle of coated paper reached 113.06 degrees and the growth inhibition of Escherichia coli increased to 99.96%, respectively, at a coating amount of 21.53 g/m(2). When applied onto paper surface by coating, the CNC/Ag/beeswax composites can impact paper with antibacterial property and improved water resistance. (C) 2016 Elsevier Ltd. All rights reserved.
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