کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
820809 906725 2011 10 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Enhancement of mechanical performance of epoxy/carbon fiber laminate composites using single-walled carbon nanotubes
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی (عمومی)
پیش نمایش صفحه اول مقاله
Enhancement of mechanical performance of epoxy/carbon fiber laminate composites using single-walled carbon nanotubes
چکیده انگلیسی

Carbon nanotubes (CNT) in their various forms have great potential for use in the development of multifunctional multiscale laminated composites due to their unique geometry and properties. Recent advancements in the development of CNT hierarchical composites have mostly focused on multi-walled carbon nanotubes (MWCNT). In this work, single-walled carbon nanotubes (SWCNT) were used to develop nano-modified carbon fiber/epoxy laminates. A functionalization technique based on reduced SWCNT was employed to improve dispersion and epoxy resin-nanotube interaction. A commercial prepregging unit was then used to impregnate unidirectional carbon fiber tape with a modified epoxy system containing 0.1 wt% functionalized SWCNT. Impact and compression-after-impact (CAI) tests, Mode I interlaminar fracture toughness and Mode II interlaminar fracture toughness tests were performed on laminates with and without SWCNT. It was found that incorporation of 0.1 wt% of SWCNT resulted in a 5% reduction of the area of impact damage, a 3.5% increase in CAI strength, a 13% increase in Mode I fracture toughness, and 28% increase in Mode II interlaminar fracture toughness. A comparison between the results of this work and literature results on MWCNT-modified laminated composites suggests that SWCNT, at similar loadings, are more effective in enhancing the mechanical performance of traditional laminated composites.


► We used reduced SWCNT to develop nano-modified carbon fiber/epoxy laminates.
► A commercial epoxy system already toughened with a plasticizer and a commercial prepregging unit was used.
► A reduction in resin fracture toughness (12–20%) after adding SWCNT.
► Modes I and II fracture toughness increased by 13% and 28%, respectively, after adding SWCNT.
► SWCNT resulted in a 5% reduction of impact damage area and 3.5% increase in CAI strength.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Composites Science and Technology - Volume 71, Issue 13, 9 September 2011, Pages 1569–1578
نویسندگان
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