کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5184759 1381056 2011 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Development of layer-by-layer assembled carbon nanofiber-filled coatings to reduce polyurethane foam flammability
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آلی
پیش نمایش صفحه اول مقاله
Development of layer-by-layer assembled carbon nanofiber-filled coatings to reduce polyurethane foam flammability
چکیده انگلیسی

Layer-by-layer (LbL) assemblies made with carbon nanofibers (CNFs) are shown to reduce the flammability of polyurethane foam. The 359 ± 36 nm thick four bilayer coating of polyethyleneimine/CNF (cationic layer) and poly(acrylic acid) (anionic layer) contains 51 ± 1 mass fraction % CNF. This coating completely covers the entire internal and external surfaces of the porous foam. Even though the microscopic CNF distribution was non-uniform, the macroscopic CNF network armor that was generated from this LbL process significantly reduced the flammability of the foam (e.g., 40% ± 3% reduction in peak heat release rate). Normalized by flame retardant concentration, the reduction in foam peak heat release due to these CNF coatings is 38% larger than CNF embedded in the foam and as high as 1138% greater than other commercial technologies used to reduce foam flammability.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Polymer - Volume 52, Issue 13, 8 June 2011, Pages 2847-2855
نویسندگان
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