کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
7786408 1500622 2016 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Effects of ionic crosslinking on physical and mechanical properties of alginate mulching films
ترجمه فارسی عنوان
اثرات پیوند یونی با خواص فیزیکی و مکانیکی فیلم های مولینگ آلژینات
کلمات کلیدی
آلژینات، پیوند یونیک، فیلم مالچ کشاورزی، تجزیه زیستی، خواص رادیومتری،
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آلی
چکیده انگلیسی
The effect of different ionic crosslinking parameters on the thickness, radiometric profiles, and mechanical and water vapor permeation (WVP) properties of alginate mulching films was investigated. Crosslinking by Mn2+, Zn2+, and Ca2+ (but not Al3+) increased the tensile strength and light transmission and decreased the WVP of the films. Among the films, those crosslinked by Ca2+ had the greatest tensile strength and exhibited the highest elongation and light transmission. Furthermore, the WVP and light transmission decreased gradually with increasing Ca2+ concentration, and the maximum tensile strength and elongation were obtained for 2% (w/v) of Ca2+. However, the WVP of the films increased gradually with increasing crosslinking time, and the elongation saturated after 2 min. These results suggest that alginate films crosslinked by 2% (w/v) calcium chloride for 2 min had the best overall performance and therefore have the potential to be used as entirely biodegradable agricultural mulching films.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Carbohydrate Polymers - Volume 136, 20 January 2016, Pages 259-265
نویسندگان
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