کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
7788891 1500634 2015 20 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Effect of modified starch and nanoclay particles on biodegradability and mechanical properties of cross-linked poly lactic acid
ترجمه فارسی عنوان
اثر نشاسته اصلاح شده و ذرات نانوذرات بر قابلیت تجزیه زیستی و خواص مکانیکی اسید پلی لیتریک متقاطع
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آلی
چکیده انگلیسی
Mechanical properties and biodegradation of cross-linked poly(lactic acid) (PLA)/maleated thermoplastic starch (MTPS)/montmorillonite (MMT) nanocomposite were studied. Crosslinking was carried out by adding di-cumyl peroxide (DCP) in the presence of triallyl isocyanurate (TAIC) as coagent. At first, MTPS was prepared by grafting maleic anhydride (MA) to thermoplastic starch in internal mixer. Experimental design was performed by using Box-Behnken method at three variables: MTPS, nanoclay and TAIC at three levels. Results showed that increasing TAIC amount substantially increased the gel fraction, enhanced tensile strength, and caused a decrease in elongation at break. Biodegradation was prevented by increasing TAIC amount in nanocomposite. Increasing MTPS amount caused a slight increase in gel fraction and decreased the tensile strength of nanocomposite. Also, MTPS could increase the elongation at break of nanocomposite and improve the biodegradation. Nanoclay had no effect on the gel fraction, but it improved tensile strength.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Carbohydrate Polymers - Volume 124, 25 June 2015, Pages 237-244
نویسندگان
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