کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1384130 982390 2009 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Preparation and characterization of cellulose/chitosan blend films
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آلی
پیش نمایش صفحه اول مقاله
Preparation and characterization of cellulose/chitosan blend films
چکیده انگلیسی

Cellulose and chitosan were mixed in N-methylmorpholine-N-oxide (NMMO) and heated to 100 °C, and then were processed under a pressure of 70 kg/cm2 exerted by a compression molding machine at 100 °C for 8 min. As a result, transparent orange viscose films were obtained. After rinsing with deionized water and drying transparent yellowish blend films were obtained. Scanning electron microscope (SEM) indicated that when the chitosan content in the blend increased up to 3% the surface structure became smoother, but the film containing 5% (w/w) chitosan, became coarse again probably due to phase separation. Tensile strength test results were consistant with this. Antibacterial assessment proved that addition of chitosan to the films results in slight antibacterial properties. The halo zone test confirmed that the blend films made in this research have non-diffusible antibacterial properties.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Carbohydrate Polymers - Volume 78, Issue 1, 4 August 2009, Pages 169–174
نویسندگان
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