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Online since: November 2011
Authors: Guo Wei Zhang, Lin Jiang Wang, Xiang Li Xie
The X-ray diffraction was used to characterize the structure of the composites.
The X-ray diffraction was primarily used to characterize the structure of the composites.
The patterns show several orders of diffraction, indicating a well-layered structure.
The presence of an XRD peak at a lower 2q implies the formation of an intercalated structure, while the absence of a peak may be indicative of either exfoliation or a disordered immiscible structure[8].
The presence of a small, diffuse peak may suggest a mixed intercalated-disordered structure.
The X-ray diffraction was primarily used to characterize the structure of the composites.
The patterns show several orders of diffraction, indicating a well-layered structure.
The presence of an XRD peak at a lower 2q implies the formation of an intercalated structure, while the absence of a peak may be indicative of either exfoliation or a disordered immiscible structure[8].
The presence of a small, diffuse peak may suggest a mixed intercalated-disordered structure.
Online since: February 2011
Authors: Jonas Gurauskis, Madis Paalo, Medhat Hussainov, Tanel Tätte, Hugo Mändar, Ants Lõhmus
Structure and Rheological Behavior of Alkoxide-Based Precursors for Drawing of Metal Oxide Micro- and Nanofibres
Medhat Hussainov1, Tanel Tätte1, Madis Paalo1, Jonas Gurauskis2, Hugo Mändar1, Ants Lõhmus1
1Institute of Physics, University of Tartu, Riia 142, Tartu, Estonia
2 Instituto de Ciencia de Materiales de Aragón C.S.I.C., University of Zaragoza, C/Pedro Cerbuna 12, Zaragoza, Spain
1medhat.hussainov@ut.ee, 2jonas.gurauskis@unizar.es
Keywords: metal oxide nanofibre, tin alkoxide, sol-gel, rheology.
The sol–gel process is of special interest because it enables to obtain different geometries by gelling the structures in suitable molds, as thin films, jets pulled into air etc. [2].
Structure of precursors SAXS determined pair distribution functions (Fig. 1) and DAMMIN 3D [1] modeling of observed scattering patterns of Sn(OBu)4 based samples pointed to elongated particle shape.
Firstly, values of storage G´ (elastic response) modulus were measured to determine the linear viscoelastic region where the structure of the dispersion keeps intact.
Kessler: The chemistry behind the sol–gel synthesis of complex oxide nanoparticles for bio-imaging applications.
The sol–gel process is of special interest because it enables to obtain different geometries by gelling the structures in suitable molds, as thin films, jets pulled into air etc. [2].
Structure of precursors SAXS determined pair distribution functions (Fig. 1) and DAMMIN 3D [1] modeling of observed scattering patterns of Sn(OBu)4 based samples pointed to elongated particle shape.
Firstly, values of storage G´ (elastic response) modulus were measured to determine the linear viscoelastic region where the structure of the dispersion keeps intact.
Kessler: The chemistry behind the sol–gel synthesis of complex oxide nanoparticles for bio-imaging applications.
Online since: September 2018
Authors: S.N. Nikishov, Sergey Viktorovich Fedosov, M.O. Bakanov
Kinetics of Cellular Structure Formation at Thermal Treatment Processes Simulation in the Cellular Glass Technology
S.V.
It is required to comprehensively approach the study process of porous structure of cellular glass formation for stating the problems of such kind.
Obvious conclusion is that simulation of the cell growth in the cellular glass charge stock taking into consideration limitless glass melt surrounding the latter one will not provide adequate dependencies and perceptions regarding structural transformations in the process of heat treatment of cellular glass charge stock, since cell structure of the target material is not taken into account, as well as the interaction of neighboring cells.
Cellular structure of cellular glass shows that each cell cladding is surrounded by a finite volume within the limits of its glass partitions.
Chemistry and Chemical Technology. 57(3) (2014) 73-79.
It is required to comprehensively approach the study process of porous structure of cellular glass formation for stating the problems of such kind.
Obvious conclusion is that simulation of the cell growth in the cellular glass charge stock taking into consideration limitless glass melt surrounding the latter one will not provide adequate dependencies and perceptions regarding structural transformations in the process of heat treatment of cellular glass charge stock, since cell structure of the target material is not taken into account, as well as the interaction of neighboring cells.
Cellular structure of cellular glass shows that each cell cladding is surrounded by a finite volume within the limits of its glass partitions.
Chemistry and Chemical Technology. 57(3) (2014) 73-79.
Online since: February 2023
Authors: Blessie A. Basilia, Davison T. Baldos, Rhaye Stephen B. Sosa
Twisted composite structures made by 4D printing method.
Recent advances in analytical chemistry by 3D printing.
The Royal Society of Chemistry; 2017;5:9514–21.
Sequential Self-Folding Structures by 3D Printed Digital Shape Memory Polymers.
Four-dimensional printing of shape memory polyurethanes with high strength and recyclability based on Diels-Alder chemistry.
Recent advances in analytical chemistry by 3D printing.
The Royal Society of Chemistry; 2017;5:9514–21.
Sequential Self-Folding Structures by 3D Printed Digital Shape Memory Polymers.
Four-dimensional printing of shape memory polyurethanes with high strength and recyclability based on Diels-Alder chemistry.
Online since: March 2018
Authors: Zhi Ping Zhao, Peng Lu, Yong Dong Zhao, Shuo Li
FT-IR, SEM, and 1H-NMR were used to characterize the structure and property of polysulfone porous microsphere supported ionic liquid (PSF-ILs).
FT-IR, 1H-NMR, SEM were employed to characterize the structure and the properties of the modified microspheres.
The results were shown that a typical asymmetric structure of the microspheres, which comprises a top layer with spongy-like pores and a sub-layer with finger-like pores.
FT-IR, SEM, and 1H-NMR were used to characterize the structure and property of PSF-ILs.
He, Influences of the structure of imidazolium pendants on the properties of polysulfone-based high temperature proton conducting membranes, J.
FT-IR, 1H-NMR, SEM were employed to characterize the structure and the properties of the modified microspheres.
The results were shown that a typical asymmetric structure of the microspheres, which comprises a top layer with spongy-like pores and a sub-layer with finger-like pores.
FT-IR, SEM, and 1H-NMR were used to characterize the structure and property of PSF-ILs.
He, Influences of the structure of imidazolium pendants on the properties of polysulfone-based high temperature proton conducting membranes, J.
Online since: March 2012
Authors: Sheng Hua Lv, Ming Ming Hou
The structure of modified TA was characterized by FTIR.
The leather tanned by vegetable tannins has close-knit organization structure, small extensibility, good formability and health performance [1-3].
The chemical structure of the modified vegetable tannins was characterized by FTIR.
Fig. 3 The structure schematic drawing of TA-SAA Application results of modified TA.
Di, Modification of larch barktannin extract by intensive sulfitation, Chemistry and industry of forest products. 19(1999) 1-6
The leather tanned by vegetable tannins has close-knit organization structure, small extensibility, good formability and health performance [1-3].
The chemical structure of the modified vegetable tannins was characterized by FTIR.
Fig. 3 The structure schematic drawing of TA-SAA Application results of modified TA.
Di, Modification of larch barktannin extract by intensive sulfitation, Chemistry and industry of forest products. 19(1999) 1-6
Online since: June 2011
Authors: Guang Jing Song, Jan Zhang, Wei Yong Yang, Kui Ying Li, Sai Ling Wei
The research into the QDs material was focused primarily upon luminescence properties, energy band structure and microstructure characteristics[13-15].
The average size of CdTe particles was about 3 nm as seen in Fig. 1a, and the lattice structure of CdTe nanoparticles can be clear seen in Fig. 1b.
Acorrding to Ref. [14] the two SPV responses above were closely related to the band-band transitions of CdS and CdTe, respectively; furthermore a core-shell structure of CdTe/CdS/ligand was formed.
Two heterojunction-like structures possesses quite distinct surface photovoltaic characteristic which excited between the core-CdTe and the shell-CdS, and between CdTe/CdS and the ligand MPA, respectively.
Wang, Materials Chemistry and Physics, 123 (2010) 98
The average size of CdTe particles was about 3 nm as seen in Fig. 1a, and the lattice structure of CdTe nanoparticles can be clear seen in Fig. 1b.
Acorrding to Ref. [14] the two SPV responses above were closely related to the band-band transitions of CdS and CdTe, respectively; furthermore a core-shell structure of CdTe/CdS/ligand was formed.
Two heterojunction-like structures possesses quite distinct surface photovoltaic characteristic which excited between the core-CdTe and the shell-CdS, and between CdTe/CdS and the ligand MPA, respectively.
Wang, Materials Chemistry and Physics, 123 (2010) 98
Online since: August 2013
Authors: Zhi Yu Zhang, Long Fa Luan, Xiang Long Li, Li Guo Zhang, Si Guan
In order to avoid dig-hole pile excavation blasting effect the building structure safety and the life of residents around the project, take several controlled blasting technique measures in construction.
(7) Charge structure and initiating way Since there are waters in the hole usually, we choose φ32 emulsion explosive, and adopt continuous loading structure for waterproof reason and reduce poisonous gas.
In order to ensure the safety of the building around the blasting area, according to Chinese national standard GB6722-2003"Safety regulations for blasting", this project decided that no matter the vibration frequency is high or low, it should carry out the criterion stringently to control blasting vibration: safe blasting vibration speed of mud hut and rubble building is 0.5 cm/s; safe blasting vibration speed of brick house is 2.0 cm/s; and safe blasting vibration speed of reinforced concrete frame structure is 3.0 cm/s.
Vibration energy concentrate in the high frequency range too, so dig-hole pile blasting won't cause the resonance of the building, and won't cause damage to the structure either.
Blasting Engineering and Safety Technique (Chemistry Industry Press, Beijing 2007).
(7) Charge structure and initiating way Since there are waters in the hole usually, we choose φ32 emulsion explosive, and adopt continuous loading structure for waterproof reason and reduce poisonous gas.
In order to ensure the safety of the building around the blasting area, according to Chinese national standard GB6722-2003"Safety regulations for blasting", this project decided that no matter the vibration frequency is high or low, it should carry out the criterion stringently to control blasting vibration: safe blasting vibration speed of mud hut and rubble building is 0.5 cm/s; safe blasting vibration speed of brick house is 2.0 cm/s; and safe blasting vibration speed of reinforced concrete frame structure is 3.0 cm/s.
Vibration energy concentrate in the high frequency range too, so dig-hole pile blasting won't cause the resonance of the building, and won't cause damage to the structure either.
Blasting Engineering and Safety Technique (Chemistry Industry Press, Beijing 2007).
Online since: November 2011
Authors: Hai Ping Wang
Microencapsulation of Styrene/epoxydiacrylate via In Situ polymerization of Melamine-formaldehyde
Haiping Wang
School of Chemistry and Environmental Engineering, Jianghan University, Wuhan 430056, P.
The chemical structure of microcapsule was identified by Fourier transform infrared spectroscopy (FT-IR) and proton magnetic resonance spectroscopy (1H-NMR), respectively.
Microcapsules are widely used in a number of diverse applications ranging from electronic inks, food additives, coatings to pharmaceuticals in virtue of their special structure [1].
The chemical structure of microcapsule was identified by Fourier transform infrared spectroscopy (FT-IR) and proton magnetic resonance spectroscopy (1H-NMR), respectively.
Microcapsules are widely used in a number of diverse applications ranging from electronic inks, food additives, coatings to pharmaceuticals in virtue of their special structure [1].
Online since: October 2007
Authors: Pisutti Dararutana, Narin Sirikulrat
It
was found that the structures between the joining interfacial layers were similar.
The scanning electron microscope (SEM) showed that the structure of the ATG can be divided into three layers; glass body, binder, and coated metal [10], as shown in figure 1.
Paul, in: Chemistry of Glasses, Chapman and Hall Ltd., N Y (1982)
The scanning electron microscope (SEM) showed that the structure of the ATG can be divided into three layers; glass body, binder, and coated metal [10], as shown in figure 1.
Paul, in: Chemistry of Glasses, Chapman and Hall Ltd., N Y (1982)