کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
7220847 1470338 2014 14 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
On the mechanical characterization of carbon nanotube reinforced epoxy adhesives
ترجمه فارسی عنوان
در خصوص ویژگی مکانیکی چسب های اپوکسی تقویت شده با نانولوله کربنی
کلمات کلیدی
چسب اپوکسی تقویت شده نانولوله کربنی، نانوکامپوزیت، پاسخ سازنده، چقرمگی شکستگی،
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی (عمومی)
چکیده انگلیسی
In this work, the mechanical properties of carbon nanotube reinforced epoxy adhesives are investigated experimentally. The investigations are intended to characterize the physical and mechanical properties of nano-reinforced structural epoxy adhesives and to further highlight some of the complex phenomena associated with these materials. We describe the dispersion methodology used to disperse the carbon nanotubes into the considered adhesive and provide details pertaining to adherent surface preparation, bondline thickness control and adhesive curing conditions. Furthermore, the following tests are described: (i) dogbone tensile testing, (ii) tensile bond testing, (iii) double lap shear and (iv) double cantilever beam fracture toughness testing. The experimental observations indicate a critical carbon nanotube concentration in the vicinity of 1.5 wt% that results in the largest improvements in the measured properties. At concentrations exceeding this critical value, the properties begin to degrade, in some cases, to levels below that of the pure epoxy. Advanced electron microscopy techniques and rheological assessments indicate that this is mainly due to the agglomeration of the carbon nanotubes at higher concentrations as a result of increased resin viscosity and the consequent resistance to dispersion.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials & Design - Volume 59, July 2014, Pages 19-32
نویسندگان
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