نتایج جستجو برای: carbon nanotube reinforcement

تعداد نتایج: 323467  

2010
Shaoli Fang Mei Zhang Anvar A. Zakhidov Ray H. Baughman Alan G. MacDiarmid

Introduction We have previously reported downsizing ancient twistbased spinning technology for making continuous, densified nanotube yarns from multi-walled carbon nanotube (MWNT) forests [1]. Such nanotube yarns provide unique properties and property combinations. Despite this important progress, the relationship between nanotube yarn properties and component carbon nanotube properties is not ...

2006
K. Mylvaganam L. C. Zhang C. D. Cheong

This paper uses the molecular dynamics method to investigate the influence of chemical bonds on the mechanical behaviour of nanotube–polyethylene composites subjected to nano-particle impacts. In the analysis, carbon nanotubes (CNTs) were incorporated into the polyethylene (PE) matrix in two ways, with and without radical centres, so that the resulting nano-composites had two corresponding prop...

2006
K. Q. Xiao L. C. Zhang I. Zarudi

This paper investigates some mechanical and rheological properties of low density polyethylene (LDPE) composites reinforced by multi-walled carbon nanotubes (MWNTs). It was found that the Young’s modulus and tensile strength of the composites can increase by 89% and 56%, respectively, when the nanotube loading reaches 10 wt%. The curving and coiling of MWNTs play an important role in the enhanc...

2006
N. M. Mohamed Y. C. Tan A. K. Kadir

Strong and versatile carbon nanotubes (CNTs) are finding new applications in improving conventional polymer-based fibers. Nanotube-reinforced composites could ultimately provide the foundation for a new class of strong and lightweight fibers with properties such as electrical and thermal conductivity unavailable in current fibers. A recent research has discovered that the best type of nanotube ...

Journal: :Nano letters 2012
Maria Barkelid Gary A Steele Val Zwiller

Carbon nanotubes show vast potential to be used as building blocks for photodetection applications. However, measurements of fundamental optical properties, such as the absorption coefficient and the dielectric constant, have not been accurately performed on a single pristine carbon nanotube. Here we show polarization-dependent photocurrent spectroscopy, performed on a p-n junction in a single ...

2017
Vishwesh Dikshit Somen K. Bhudolia Sunil C. Joshi

Composite materials are prone to delamination as they are weaker in the thickness direction. Carbon nanotubes (CNTs) are introduced as a multiscale reinforcement into the fiber reinforced polymer composites to suppress the delamination phenomenon. This review paper presents the detailed progress made by the scientific and research community to-date in improving the Mode I and Mode II interlamin...

Journal: :Journal of biomedical materials research. Part B, Applied biomaterials 2008
Eda D Yildirim Xi Yin Kalyani Nair Wei Sun

Composite polymeric scaffolds from alginate and single-walled carbon nanotube (SWCNT) were produced using a freeform fabrication technique. The scaffolds were characterized for their structural, mechanical, and biological properties by scanning electron microscopy, Raman spectroscopy, tensile testing, and cell-scaffold interaction study. Three-dimensional hybrid alginate/SWCNT tissue scaffolds ...

2005
J. C. Riddick

A multi-scale method to predict the stiffness and stability properties of carbon nanotube-reinforced laminates has been developed. This method is used in the prediction of the buckling behavior of laminated carbon nanotube-polyethylene composites formed by stacking layers of carbon nanotube-reinforced polymer with the nanotube alignment axes of each layer oriented in different directions. Linki...

Journal: :علوم و تکنولوژی پلیمر 0
غلام باقری مرندی لیلا محمودپور شربیان

hydrogel nanocomposites based on alginate polysaccharide were prepared by graft copolymerization of acrylamide and itaconic acid in the presence of carbon nanotube, using methylene bisacrylamide and ammonium persulfate as crosslinker and initiator, respectively. the synthesized samples were characterized by infrared spectroscopy, thermogravimetric analysis and scanning electron microscopy. the ...

2012
Ahmad E. Islam Frank Du Xinning Ho Sung Hun Jin Simon Dunham John A. Rogers

Related Articles Emission stability enhancement of a tip-type carbon-nanotube-based field emitter via hafnium interlayer deposition and thermal treatment Appl. Phys. Lett. 100, 123103 (2012) Flexible solid-state paper based carbon nanotube supercapacitor Appl. Phys. Lett. 100, 104103 (2012) Permalloy and Co50Pd50 as ferromagnetic contacts for magnetoresistance measurements in carbon nanotubebas...

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