کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5439402 1509871 2017 27 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Evaluation of the role of functionalized CNT in glass fiber/epoxy composite at above- and sub-zero temperatures: Emphasizing interfacial microstructures
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد سرامیک و کامپوزیت
پیش نمایش صفحه اول مقاله
Evaluation of the role of functionalized CNT in glass fiber/epoxy composite at above- and sub-zero temperatures: Emphasizing interfacial microstructures
چکیده انگلیسی
Present work is aimed to elucidate the temperature dependant reinforcement efficiency due to the chemical restructuring of the nano-filler/matrix interphase in carbon nanotube embedded glass fiber/epoxy composite. Oxidized CNT/glass/epoxy composite exhibits 25% and 10% better strength than control glass/epoxy (GE) and pristine CNT/glass/epoxy composites respectively, at room temperature. Covalently bonded CNT/epoxy interface in oxidized nanotube modified epoxy matrix restricts the interfacial debonding to a better extent than pristine one upon excursion to elevated temperature. However, due to massive interfacial decohesion, both these nanophased GE composites result in inferior strength over control GE at 110 °C. On the contrary, mechanical gripping at the CNT/epoxy interface at lower temperature maximizes its failure strength, resulting in an admirable structural material for low and cryogenic temperature applications. Thermo-mechanical properties and microscopic evidences of the interfaces at nanoscale (CNT/epoxy) and microscale (glass/epoxy) divulge the synergetic strengthening effect due to both chemical functionalization and low temperature environment.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Composites Part A: Applied Science and Manufacturing - Volume 101, October 2017, Pages 215-226
نویسندگان
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