ORCID Profile
0000-0003-3176-7514
Current Organisations
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Xinjiang Technical Institute of Physics and Chemistry
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Publisher: Elsevier BV
Date: 07-2010
Publisher: Elsevier BV
Date: 08-2012
Publisher: SAGE Publications
Date: 19-06-2009
Abstract: Dry oxidizing methods have been widely used to modify surface properties of polymer and ceramic substrates. Compared to other dry oxidizing methods, ultraviolet light/ozone (UV/O 3 ) treatment has hitherto attracted less attention, mainly due to relatively weak oxidizing power. With optimized processing conditions, however, UV/O 3 treatment can be better capable of offering desired effects associated with appropriate surface modifications. Incorporation of nanoscale reinforcements, e.g., carbon nanotubes (CNTs) and graphite, into a polymer matrix creates a new class of composites that possess unique mechanical and functional capabilities. A proper surface treatment is critical to dispersing the reinforcements in the matrix, hence to provide adequate adhesion between the reinforcements and the matrix. In this article, a review is provided on the underlying mechanisms of and the advantages arising from UV/O 3 treatment of polymer substrates and nanoscale carbon materials. Special focus is placed on the relationship between the changes in chemical composition, morphology, functional groups of the treated surface and the corresponding improvements in adhesion and wettability of the substrate, dispersion of nano-reinforcements, as well as the properties of the nanocomposites made therefrom.
Publisher: Elsevier BV
Date: 02-2019
Publisher: Elsevier BV
Date: 12-2006
Publisher: Wiley
Date: 12-12-2016
Publisher: American Scientific Publishers
Date: 02-2009
Abstract: A simple chemo-mechanical method is proposed for in-situ amino functionalization of carbon nanotubes (CNTs). Ball milling in the presence of ammonium bicarbonate (NH4HCO3) allowed introduction of functional groups like amine, amide on the surface of CNTs. The milled CNTs were characterized extensively using a particle size analyzer, a transmission electronic microscope, Raman spectrometry, X-ray photoelectron spectroscopy, time-of-flight secondary ion mass spectrometry and surface area measurement to evaluate the influences of ball milling conditions. The results show that CNTs milled with NH4HCO3 were more effectively disentangled and shortened than those without the chemical. The amino termination of the functionalized CNTs makes it possible to covalently bond to polymers and biological systems, as well as the potential applications in electronics industry.
Publisher: Elsevier BV
Date: 11-2007
Publisher: Elsevier BV
Date: 09-2008
Publisher: American Scientific Publishers
Date: 11-2010
Abstract: A new method for preparing black birnessite nanowires is introduced. Layer-structured manganese oxide nanowires were synthesized by a facile hydrothermal method, and using both NaMnO4 and CH3CH2OH as the precursors in a concentrated NaOH solution. The structure, composition, appearance and electrochemical performance of the product were characterized by means of X-ray diffraction (XRD), transmission electron microscopy (TEM), energy diffraction (ED), high-resolution transmission electron microscopy (HRTEM), thermogravimetric analysis (TGA) and constant current charge/discharge. The XRD patterns showed a single phase corresponding to a crystalline birnessite-based manganese oxide. TEM studies suggested their wire-like structures. The TGA measurement demonstrated that they possessed an excellent thermal stability up to 400 degrees C. In the potential window of 2.0-4.3 V, the product exhibited excellent cyclic stability and rapid charge-discharge performance.
Publisher: Elsevier BV
Date: 10-2011
Publisher: Wiley
Date: 05-09-2007
Publisher: Elsevier BV
Date: 2012
Publisher: Elsevier BV
Date: 09-2011
Publisher: Elsevier BV
Date: 06-2008
Publisher: Elsevier BV
Date: 10-2010
Publisher: American Chemical Society (ACS)
Date: 08-05-2009
DOI: 10.1021/AM9000503
Abstract: Nanocomposites reinforced with hybrid fillers of carbon nanotubes (CNTs) and carbon black (CB) are developed, aiming at enhancing the electrical conductivity of composites with balanced mechanical properties while lowering the cost of the final product. Epoxy-based nanocomposites were prepared with varying combinations of CNTs and CB as conducting fillers, and their electrical and mechanical properties were evaluated. It was shown that the addition of CNTs in CB composites enhanced the electrical conductivity of composites: a low percolation threshold was achieved with 0.2 wt % CNTs and 0.2 wt % CB particles. The CB particles also enhanced the ductility and fracture toughness of nanocomposites, confirming the synergistic effect of CB as a multifunctional filler. The novelty of this work lies in the synergy arising from the combination of two conducting fillers with unique geometric shapes and aspect ratios as well as different dispersion characteristics, which have not been specifically considered previously.
Publisher: Elsevier BV
Date: 05-2010
Publisher: Royal Society of Chemistry (RSC)
Date: 2011
DOI: 10.1039/C1JM00059D
Location: Korea, Republic of
Location: China
No related grants have been discovered for 鹏程 马.