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Online since: July 2011
Authors: Fan Bin Meng, Rui Zhao, Ying Qing Zhan, Xiao Bo Liu
It is well known that melt rheology is also a powerful tool to examine the dispersion state of filler in the filled polymer nanocomposites because the rheological responses are highly dependent on micro- and mesco-structure and particle-particle interactions of filled particles [3].
Purified MWCNTs (diameters: 10~30 nm, length: about 30-50 μm, purity: > 95 %) were supplied by Chengdu Organic Chemistry Co.
As a result, a transient network, the so-called rheological percolation structure can be formed.
Online since: May 2011
Authors: Zheng Liu, Min Xie, Xiao Mei Liu
It is difficult to use in production for those micro- structures without modification.
Those compounds have the cubic structure.
Kinoshita: Materials Chemistry and Physics Vol. 81(2003), p. 393 [2] R.
Online since: March 2011
Authors: Erik Janzén, Olof Kordina, Anne Henry, Franziska Christine Beyer, Sven Andersson, Stefano Leone
Beyer1,c, Sven Andersson1,d, Olof Kordina1,e, and Erik Janzén1,f 1 Department of Physics, Chemistry and Biology, Linköping University, SE-581 83 Linköping, Sweden aanhen@ifm.liu.se, bleone@ifm.liu.se, cfbeyer@ifm.liu.se, dsvean@ifm.liu.se, eolkor@ifm.liu.se, ferija@ifm.liu.se Keywords: epitaxial growth, chloride-based CVD, on-axis, 3C-SiC.
Besides it suggested as a suitable polytype for MOSFET devices thanks to the lower defect density in the SiC/SiO2 interface as compared to 4H-SiC [2], reaching blocking voltages up to 1500 V and current handling up to 100 A. 3C-SiC is also proposed as a substrate in the zinc blende structure for heteroepitaxial growth of other semiconductor materials, such as GaN and BN [2]. 3C-SiC is thermodynamically not stable [3], therefore it is usually grown by heteroepitaxial process, either on silicon [2] or α-SiC substrates [4].
AFM was used to corroborate the high quality of the best samples displaying a very low roughness (4 Å on a 10x10 μm2 area) and a step structure.
Online since: December 2013
Authors: Hui Jia Yang, Zhi Feng Dong, Jian Sun
The mainly control system is spray control structure, where the core controller, actuator and the sensors are pH controller, spray pump controller, switching valve, pH meter, SO2 meter, flow meter, pressure meter.
Fig.3 FGD control system diagram Fig.4 Feed-forward decoupling structure Coupling decoupling control method In the FGD experiment control system, the coupling control characteristic has been described, and the decoupling control method would be used.
Industrial and Engineering Chemistry Research (2010), p.2263 [7] Dong, Zhi Feng; Li, Bin; Yang, Hui Jia; et.al.
Online since: October 2011
Authors: Shi Chao Zhang, Li Li Wang, Xiao Meng Wu
Among various morphologies, well-aligned TiO2 nanotube array have a high surface-to-volume ratio, meso–macroporous structure, and excellent activity towards electrochemical reactions due to the size effect, and is assumed to be highly promising anode to overcome the kinetic problems involved in many electrochemical systems.
This process is accompanied by alterations in the electronic structure of the oxide (e.g., incorporation of additional states within the band gap that change conductivity and optical properties of the material) [11].
Chemistry 566 (2004), p. 73
Online since: July 2011
Authors: Zhen Fang Zhang, Yu Chun Zhai, Shu Di Zhang
Pure PVA hydrogel and pure PVP hydrogel have higher water content, PVA and PVP molecular chains each other can interact after both of polymers are physical cross-link, combine by van der waals force and hydrogen bond, some small molecular chains can form order structure in one small region and make stronger combination[10,11], so this kind of hydrogel has higher water content.
It is contained many loop structures in PVP big molecular chains, hydroxyl (-OH) and amido(-NH2) in the loop can form molecular and intermolecular, hydroxyl effect is strengthened, the tensile strength is strengthened with it, following PVP content increasing when PVP and PVA is cross-linked together, but beyond a certain value molecular chains rotation and motion become difficult, it makes molecular chains stiff, toughness poor, intensity low.
Principles of Polymer Chemistry, Ithaca:Cornell Univ, Prsss, 1953.
Online since: June 2014
Authors: P. Predeep, Thappily Praveen
This increase in conductivity is because of its conformational transition from a random coil to a rod-like structure.
Experimental To study dielectric properties of NR-TiO2 nanocomposite, we fabricated a device with ITO /PEDOT:PSS/NR-TiO2/Al structure as shown in the Fig.1.
Han, Enhanced photocurrent and efficiency of poly(3-hexylthiophene)/fullerene photovoltaic devices by the incorporation of gold nanoparticles, Journal of Industrial and Engineering Chemistry. 14 (2008) 382–386
Online since: July 2014
Authors: Hong Hai Sun
Adsorption of Dye from Aqueous Solution by Palm Leaves Honghai Sun School of Chemistry and Chemical Engineering, Daqing Normal University, Daqing 163712, China sunhonghai99@163.com Keywords: Adsorption; Palm Leaves; Rhodamine B; Kinetic Model; Isotherms Abstract.
The chemical structure of RhB is presented in Fig. 1.
Chemical structure of rhodamine B.
Online since: April 2013
Authors: Maisarah Mohamed Bazin, Norhayati Ahmad, Yuzo Nakamura, Hiroki Kamibayasi
The membrane sintered at lower temperature (600 °C) show highly porous structure while at high temperature (800 °C), the membrane are more consolidate.
The membrane shows more dense structure at that temperature.
Matsuura, Mechanical and Pore Characteristic of Zeolite Composite Membranes, Journal of Materials Chemistry, 1999, 9, 783-788.
Online since: March 2014
Authors: Yu Li Liu, Yi Qin
Crosslinked polymer gel as a deep profile control agent is formed by a low concentration of the polymer and the crosslinker, forming a three-dimensional network structure with intermolecular crosslinking as priority and intramolecular crosslinking as a supplement.
Firstly, it act as auxiliary crosslinking agent to form three-dimension network structure and secondly as an additive to improve the salt resistance of the gel.
Oilfield Chemistry, 12, 88-94(1995)