文章摘要
魏占锋,董峰,王哲,李雪青.载银纳米纤维素/聚乙烯醇复合膜的制备及性能研究[J].包装工程,2018,39(9):51-55.
WEI Zhan-feng,DONG Feng,WANG Zhe,LI Xue-qing.Preparation and Properties of Silver-dialdehyde Cellulose Nanocrystals/Polyvinyl Alcohol Composite Films[J].Packaging Engineering,2018,39(9):51-55.
载银纳米纤维素/聚乙烯醇复合膜的制备及性能研究
Preparation and Properties of Silver-dialdehyde Cellulose Nanocrystals/Polyvinyl Alcohol Composite Films
投稿时间:2017-11-21  修订日期:2018-05-10
DOI:10.19554/j.cnki.1001-3563.2018.09.009
中文关键词:   纳米纤维素  聚乙烯醇  复合膜
英文关键词: silver  cellulose nanocrystals  polyvinyl alcohol  composite film
基金项目:黑龙江省省属高等学校基本科研业务费科研项目(135109305);大学生创新创业训练计划(201710232132);齐齐哈尔市科技局项目(GYGG201611)
作者单位
魏占锋 齐齐哈尔大学齐齐哈尔 161006 
董峰 齐齐哈尔大学齐齐哈尔 161006 
王哲 齐齐哈尔大学齐齐哈尔 161006 
李雪青 齐齐哈尔大学齐齐哈尔 161006 
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中文摘要:
      目的 制备一种具有良好力学性能和抑菌性能的新型抗菌聚乙烯醇复合膜。方法 通过酸水解微晶纤维素制备纳米纤维素,经高碘酸钠氧化获得醛基纳米纤维素,加入银氨溶液原位合成载银纳米纤维素(Ag-DCNC)。以聚乙烯醇(PVA)为成膜基底,加入Ag-DCNC共混流延制备载银纳米纤维素/聚乙烯醇复合膜。结果 Ag-DCNC体积分数为3%时,复合膜的拉伸强度比纯PVA膜提高了8.8%。Ag-DCNC体积分数为5%的复合膜对大肠杆菌和金黄色葡萄球菌均具有较好的抑菌效果。结论 载银纳米纤维素/聚乙烯醇复合膜具有较好的力学强度,对2种细菌均有良好的杀菌效果。该材料不但具有良好的性能,而且合成工艺简单,可以作为一种很有前途的抑菌膜用于包装行业。
英文摘要:
      The work aims to prepare a new antibacterial polyvinyl alcohol composite film with good mechanical and antibacterial properties. Cellulose nanocrystals were prepared by acid hydrolysis, dialdehyde cellulose nanocrystals were prepared by oxidation of sodium periodate, and silver-dialdehyde cellulose nanocrystals (Ag-DCNC) were in-situ synthesized by incorporation of Tollens' reagent. With PVA as the film base, the composite film (Ag-DCNC/PVA) made of Ag-DCNC and polyvinyl alcohol (PVA) was prepared by solution casting. The tensile strength of composite films with 3% (volume fraction) Ag-DCNC content was improved by 8.8% compared with the pure PVA films. The antibacterial effect of composite films with 5% (volume fraction) Ag-DCNC content on escherichia coli and staphylococcus aureus was better. Ag-DCNC/PVA composite films show good mechanical strength and antibacterial effect against two kinds of bacteria. With both good properties and simple synthesis technology, such material can be treated as a very promising antibacterial film applied in the packaging industry.
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