کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10601678 | 982350 | 2013 | 17 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Properties of novel polyvinyl alcohol/cellulose nanocrystals/silver nanoparticles blend membranes
ترجمه فارسی عنوان
خواص جدید پی وی سی پی وی سی / نانوبلورهای سلولز / نانوذرات نقره مخلوط غشاء
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کلمات کلیدی
نانوکریستالهای سلولز، نانوذرات نقره، پلی وینیل الکل، نانوکامپوزیت،
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی آلی
چکیده انگلیسی
Novel polyvinyl alcohol (PVA) blend membranes containing cellulose nanocrystals (CNs) and silver nanoparticles (AgNPs) were prepared via a simple method. CNs were prepared by sulfuric acid treatment of microcrystalline cellulose. AgNO3 aqueous solution mixed with the CNs aqueous suspension and was reduced by NaBH4 at room temperature. Purified CNs/AgNPs nanocomposites as functional fillers mixed with polyvinyl alcohol to prepare blend membrane. The morphology, mechanical properties, and antibacterial activities of PVA/CNs/AgNPs composite films were investigated. The PVA/CNs/AgNPs composite films were stable and homogeneous. The tensile strength of PVA was increased from 57.02Â MPa to 81.21Â MPa when filled with CNs/AgNPs. Antibacterial ratio of PVA/CNs/AgNPs composite against Gram-negative Escherichia coli and Gram-positive Staphylococcus aureus was 96.9% and 88.2%, respectively. The CNs/AgNPs nanocomposites could be applied as bi-functional nanofillers within PVA to improve the mechanical properties and antibacterial activities.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Carbohydrate Polymers - Volume 98, Issue 2, 6 November 2013, Pages 1573-1577
Journal: Carbohydrate Polymers - Volume 98, Issue 2, 6 November 2013, Pages 1573-1577
نویسندگان
Xu Xu, Yi-Qin Yang, Ying-Ying Xing, Jiu-Fang Yang, Shi-Fa Wang,