A study of improving properties of aligned multi-walled carbon nanotube/epoxy composites
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Từ khóa:
aligned carbon nanotubes
prepregs
nano composites
mechanical stretching
mechanical properties
Tóm tắt
Composites made of an epoxy resin film and differently stacked aligned multi-walled carbon nano tube (MWCNT) sheets have been developed using hot-melt prepreg processing. The horizontally aligned 20-ply MWCNT sheets were created from vertically aligned MWCNT arrays using solid-state drawing and winding techniques. However, wavy and poor-packed MWCNTs in the sheets have restricted their load-transfer efficiency in the composites. Therefore, mechanical stretching was used to straight the wavy MWCNTs and to increase the dense packing of MWCNTs in the sheets. In this article, improving the composite properties through mechanical stretching of the MWCNT sheets was studied. Mechanical stretching of the MWCNT sheets considerably improved the mechanical properties of the composites. The improvement of the composite properties is derived from the straightening of wavy MWCNTs and the increase of MWCNT dense packing is caused by mechanical stretching.The decrease of the wavy MWCNTs is more efficient than the enhancement of MWCNT dense packing.
Tài liệu tham khảo
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Dec 31, 2015
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Cách trích dẫn
Tran Huu Nam; Vu Minh Hung; Vo Quoc Thang. “A Study of Improving Properties of Aligned Multi-Walled Carbon nanotube/Epoxy Composites”. Tạp Chí Khoa học Và Công nghệ - Đại học Đà Nẵng, vol 12, số p.h 97.1, Tháng Chạp 2015, tr 38-42, https://jst-ud.vn/jst-ud/article/view/3680.
