کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5204706 | 1381969 | 2006 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Enhanced thermal and mechanical properties and biostability of polyurethane containing silver nanoparticles
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی آلی
پیش نمایش صفحه اول مقاله
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چکیده انگلیسی
A polyether-type polyurethane (PU) containing silver (Ag) nanoparticles (4-7 nm, 1.51 Ã 10â3-1.13 Ã 10â2 wt-%) was prepared by mixing the waterborne PU with the nanoparticle suspension, casting and drying at 60 °C. The Ag nanoparticles were found to be well dispersed in PU. A significant increase in the thermal stability and mechanical properties of the polymer was demonstrated in the nanocomposite PU films, which was believed a result of induced crystallization in the presence of Ag nanoparticles. The biostability was tested in a rat subcutaneous model. After 19 days of implantation, the PU containing Ag showed enhanced biostability and lowered foreign body reaction. The effect of Ag on the stability of the PU polymer was even more remarkable over a wider range of particle contents than that of the gold nanoparticles previously studied.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Polymer Degradation and Stability - Volume 91, Issue 5, May 2006, Pages 1017-1024
Journal: Polymer Degradation and Stability - Volume 91, Issue 5, May 2006, Pages 1017-1024
نویسندگان
Chih-Wei Chou, Shan-hui Hsu, Han Chang, Sheng-Mao Tseng, Hong-Ru Lin,