载Ag改性桑枝韧皮纤维素/聚乙烯醇复合膜的制备及表征

王小燕; 刘利; 曾秀; 马群忠; 谷山林; 熊定奎; 王海燕

doi:10.13801/j.cnki.fhclxb.20190412.003

载Ag改性桑枝韧皮纤维素/聚乙烯醇复合膜的制备及表征

1.
重庆市畜牧科学院, 重庆 402460;
2.
重庆市计量质量检测研究院第三分院, 重庆 402160

基金项目: 重庆市蚕桑产业技术体系（18304）；重庆市科研院所绩效激励引导专项项目（cstc2017jxjl80049）；重庆市基础科研应用开发计划项目（16439）

详细信息

通讯作者:
王海燕,硕士,副研究员,研究方向为蚕桑资源综合利用,E-mail:632685419@qq.com

中图分类号: TB332
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出版历程
- 收稿日期: 2018-12-11
- 刊出日期: 2019-11-14

Preparation and characterization of Ag-carried tetracycline-mulberry bast carboxymethyl cellulose/polyvinyl alcohol composite films

1.
Chongqing Academy of Animal Science, Chongqing 402460, China;
2.
The Third Branch of Chongqing Institute of Metrology and Quality Inspection, Chongqing 402160, China

摘要

摘要: 采用流延法制备了载Ag改性桑枝韧皮纤维素/聚乙烯醇（Ag-T-CMC/PVA）复合膜，并利用XRD、SEM、DSC等分析测试方法研究了该复合膜的结构和性能。结果表明：随着Ag-T-CMC含量增加，Ag-T-CMC/PVA复合膜的力学性能、耐水性及抗菌性能均有提高。当Ag-T-CMC与PVA质量比为2%时，力学性能达到最佳，拉伸强度提高了3.4%。SEM分析表明：Ag-T-CMC均匀分散于Ag-T-CMC/PVA复合膜中，表现出良好的相容性；随着Ag-T-CMC含量的增加，断层逐渐变得光滑平面，在Ag-T-CMC与PVA质量比为2%时，断层最光滑。吸水性能测试表明：Ag-T-CMC能明显降低Ag-T-CMC/PVA复合膜的吸水性。抑菌性能测试表明：Ag-T-CMC/PVA复合膜对大肠杆菌和金黄色葡萄球菌有一定的抑菌效果，且随着Ag-T-CMC含量的增大，抑菌圈直径变大，抑菌效果增强。
- 载Ag改性桑枝韧皮纤维素 /
- 聚乙烯醇 /
- 复合膜 /
- 抗菌 /
- 性能
Abstract: The Ag-carried tetracycline-mulberry bast carboxymethyl cellulose/polyvinyl alcohol(Ag-T-CMC/PVA)composite films were prepared by solution casting method. And the structure and properties of Ag-T-CMC/PVA composite films were investigated by XRD, SEM and DSC. The results show that with the increase of Ag-T-CMC content, the mechanical properties, water resistance and antibacterial properties of Ag-T-CMC/PVA composite films are improved. When the mass ratio of Ag-T-CMC to PVA is 2%, the mechanical properties of the Ag-T-CMC/PVA composite film are the best and the tensile strength increases by 3.4%. SEM analysis shows that Ag-T-CMC is uniformly dispersed in Ag-T-CMC/PVA composite films, showing good compatibility, and with the increasing Ag-T-CMC content, the faults gradually become smooth plane. When the mass ratio of Ag-T-CMC to PVA is 2%, the faults are the smoothest. The water absorption test shows that Ag-T-CMC can significantly reduce the water absorption of Ag-T-CMC/PVA composite films. The antibacterial test shows that the Ag-T-CMC/PVA composite films have certain antibacterial effect on Escherichia coli and Staphylococcus aureus, and with the increase of Ag-T-CMC content, the diameter of the antibacterial circle becomes larger and the antibacterial effect is enhanced.
- Ag-carried tetracycline-mulberry bast carboxymethyl cellulose /
- polyvinyl alcohol /
- composite films /
- antiseptic /
- properties

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