کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5354846 1503618 2015 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Reinforcement of waterborne polyurethane with chitosan-modified halloysite nanotubes
ترجمه فارسی عنوان
تقویت پلی اورتان آب با نانو لوله های هالوویستیک اصلاح شده با کیتوزان
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی تئوریک و عملی
چکیده انگلیسی
Waterborne polyurethane/halloysite nanotubes nanocomposites were prepared by modified halloysite nanotubes (HTs) with chitosan (CS). Modified HTs were characterized by Fourier transform infrared spectroscopy, elemental analysis, and thermogravimetry, which verified that CS was successfully assembled onto the HTs surface. The chitosan-modified halloysite nanotubes (CHTs) were uniformly dispersed in WPU matrix through the reaction with polyurethane prepolymer, and acted as chain cross-linker as well as reinforcing filler, which increased the cross-linking density of nanocomposites. The experimental results showed that the strong interfacial interaction and hydrogen bonding interaction between CHTs and WPU improved the degree of micro-phase separation, thermal properties, mechanical properties and surface properties of nanocomposites. The tensile strength and elongation at break were simultaneously enhanced when the CHTs loading was below 2 wt%.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Applied Surface Science - Volume 346, 15 August 2015, Pages 372-378
نویسندگان
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