Materials Literature
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MQ resin was prepared from tetramethoxyl silane and hexamethyldisiloxane;then reacting with epoxy-containing silane to get epoxy modified silicone resin.γ-aminopropyl triethoxysilane was used to synthesis amino-cage POSS(polyhedral oligomeric silsesquioxane),both were characterized by IR and XRD.A new type of silicone…
The Q550D steel plate was analyzed by metallographical examination,micro-hardness and mechanical properties testing.The result was showed that the elongation properties of the Q550D steel plate was too low because of band structure due to composition segregation,MnS inclusions and inner loosener defect. The steel has…
In order to study the polarization property of 1-D photonic crystal, transfer matrix method was used for calculation. It is found that at normal incidence, the change of the refractive index and the refractive index modulation will not influence the gap position and the gap for p light is coincident with that for s li…
Waterborne polyurethane adhesive emulsions were synthesized with isophorone diisocyanate(IPDI),dihydromethyl propionic acid(DMPA),polyester glycol(XH-111),trimethylolpropane(TMP)and 1,4-butanediol(BDO),and then reacted with hydroxy-ethyl acrylate(HEA)to cap the —NCO terminal groups.Such polyurethane emulsions were use…
A polyvinyl chloride membrane/diltiazem hydrochloride ion selective electrode based on the complex of iodomercurate with diltiazem hydrochloride as electroactive material,was prepared and its electrochemical properties tested.Good response of this ion selective electrode against diltiazem hydrochloride was observed gi…
Glycerol-3-phosphate dehydrogenase (GPDH) is a soluble cytosolic NAD-dependent enzyme present in eukaryotic organisms and has some important functions,such as energy transfer.Bombyx mori is a central model animal to research metamorphosis and energy metabolism.In order to determine the role of GPDH in B.mori,we cloned…
The microstructure and fracture morphology of super-high manganese steel added with different volume of returns are researched by scanning electronic microscopy (SEM),and impact energy and wearing resistance are tested also.Optimal volume of returns is obtained finally.The experiment results show that when the proport…
In this paper, Zirconium Glyphosate (ZrGP) was synthesized via refluxing. Photos coming from scanning electronic microscopy show that there are different on structure of the micro-particles of product morphologies by using different dried results. A 3D porous structure with high surface area (445 m2·g-1) and larger po…
The thermodynamic properties of (NaCl-MgSO4-C2 H6 O2-H2 O) system with compositions of 0%,10%,20% and 30% glycol were studied by means e.m.f.measurements in the cells (A) and (B) from 293.15K to 313.15K.AgCl-Ag | NaCl(mA),C2H6O2(w),H2O(1-w) | Na-ISE (A) AgCl-Ag | NaCl(mA),MgSO4(mB),C2H6O2(w),H2O(1-w) | Na-ISE (B) The…
By using the finite element software Deform-3D to simulate the wear failure of the die core of an extrusion die for a frame like section aluminum profile,and with calculations based on Archard's wear model,the extrusion temperature-wear depth curve,extrusion temperature wear coefficient curve and temperature hardness…
Thermal ageing of TDE-85 epoxy/carbon fiber composites material was studied through test in different temperature with dynamic thermomechanical analyzer.The bending strength of TDE-85 epoxy/carbon fiber composites material was selected as evaluation index of storage life.The storage life was forecasted by statistic an…
Pie-shaped 20CrMnTi(φ30 mm× 3 mm) processed by high-pressure torsion(HPT) was studied by finite element method(FEM),the distributing and the variational trend of strain in HPT process were analyzed.Microstructure and microhardness of 4 regions(the center,5 mm away from center,10 mm away from center,15 mm away from cen…
ZnS thin films were deposited on glass substrate by thermal evaporation at different substrate temperatures. The films were studied by X-ray diffraction (XRD), energy dispersive X-ray analysis (EDAX), ultraviolet-visible spectrophotometer (UV-vis) and atomic force microscopy (AFM) .The results show that all ZnS thin f…
The applications of polyhydroxyalkanoates (PHAs) in different fields,including packaging,waste water treating,medical devices,controlled releasing,agricultural films,and nitrogen fixation were reviewed in this article. In addition,composites of PHAs with carbon nano-tubes and montmorillonite for special applications w…
Density functional theory (DFT) calculations were carried out for the optimization of the acetylene complexation with various metal chlorides. Electronic structures were calculated and analyzed comprehensively. The results show that ionic interactions between acetylene carbon-carbon triple bond and the metal atoms has…
Direct Methanol Fuel Cells(DMFC) is considered to be one of the perfect mobile energy sources because of its high energy conversion efficiency.However,one of the major problems faced in DMFC is that the electrocatalytic activity of methanol at anode is quite low at low temperature.This article introduces the Pt-based…
Research and mechanism of inorganic nano-particles modified epoxy resins are presented.Through the analysis of large number of documents,some important issues,that the modification effect of epoxy resin have a significant correlation with the type of inorganic nano-particles,the particle addition and particle diameter…
The M/MnAl mixed oxides are prepared by acid-processed gelatin method with different metals and tested for SO2 removal under conditions similar to those in FCC units.The property of oxidation adsorption of different sulfur-transfer agents and the effects of sulfur-transfer agent content on the sulfur transfer are stud…
A series of novel zinc complexes (1, 2 and 3) are obtained by reaction of the ligand L (L=trans-4-[4′-(N-methyl-N-hydroxyethyl)amimo]vinylpyridine) with ZnX2 (X=Cl, Br, I). The crystal structures of complex ZnCl2L2 (1) and ZnBr2L2 (2) have been characterized by single crystal X-ray diffraction analysis. The results of…
To achieve the technological requirement of large tension ratio for composites winding,discontinuous tape winding was proposed.Based on the research of the molding process and the possible technical difficulties,the control method and the interaction mechanism of tension,tension ratio,automatic lap and rectification w…