کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
821619 906766 2009 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Enhanced acoustic damping in flexible polyurethane foams filled with carbon nanotubes
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی (عمومی)
پیش نمایش صفحه اول مقاله
Enhanced acoustic damping in flexible polyurethane foams filled with carbon nanotubes
چکیده انگلیسی

Flexible polyurethane (PU) foams, with loading fractions of up to 0.2 wt% carbon nanotubes (CNTs), were made by free-rising foaming using water as blowing agent. Electron microscopy revealed an open cellular structure and a homogeneous dispersion of CNTs, although the incorporation of nanofiller affected the foaming process and thus the final foam density and cellular structure. The compressive response of the foams did not show an unambiguous improvement with CNT content due to the variable foam structure. However, dense films generated by hot pressing the foams indicated a significant intrinsic reinforcement of the polymer, even at low loadings of CNTs. Most significantly, CNTs were found to increase the acoustic activity monotonically at concentrations up to 0.1 wt%.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Composites Science and Technology - Volume 69, Issue 10, August 2009, Pages 1564–1569
نویسندگان
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