Materials Literature
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In a physically confined environment,copolymers usually assemble into lamellar structures.Through varying the topology of the substrate,we successfully realize lamellarhexagonal transitions,lamellar-hexagonal/lamellar transitions and the reentrant of lamellar and hexagonal structures,according to the self-consistent f…
An investigation was carried out to examine the effects of cooling rate on the microstructure and mechanical properties of dual phase steel(of composition 0.15wt%C,0.1wt%Si,1.7wt%Mn) by continuous annealing simulator.The steel was heated to 850℃and holding for 30s,then cooled down to 460℃and holding for 12s at differe…
The wear properties and the wear mechanism of detonation-gun sprayed Al_2O_3-20%TiO_2 coating rubbed against the carbon-graphite impregnated resin in the dry sliding friction were mainly discussed.And then the wear properties of Al_2O_3-20%TiO_2 coating were compared with that of Al_2O_3-40%TiO_2 coating.The results i…
The Ce0.8Gd0.2O2-δ(CGO) thin films grown on the single crystalline MgO(100) substrates were fabricated by pulsed laser deposition(PLD). Effect of the deposition temperatures as well as the film thickness on the microstructure and the ionic conductivity in CGO/MgO thin films were studied,respectively. X-ray diffraction…
Towel fabric,with water-soluble vinylon yarn as loop warp,was developed.Warp sizing process was analysed,and experiment of sizing and weaving was done sucessfully.The fabric has soft hand and excellent absorbancy proformance,increased the added value of towel fabric.
The fumed SiO2(≥ 50 wt.% in gelled electrolyte) reacts with KOH to form K2SiO3 solution,the rest SiO2 is dispersed into the solution by using mechanical stirring,and then mixed with H2SO4 to pre-pare a mixed-type silicasol.The silicasol has the properties of both silicasols.The size distribution of the silicasol parti…
The geometries,electronic structure,IR spectrum and other properties of hydrogen interaction between 5-fluorouracil and glycine were studied at the B3LYP/6-31+G* level.Single point energy calculations were executed at the B3LYP/6-311++G** and B3LYP/aug-cc-pvdz levels,and natural bond orbital (NBO) analysis was carried…
This paper briefly introduced the preparation of industrial anti-corrosion coatings by taking waterborne epoxy resin as the base material,analyzed and discussed the influence of selection of waterborne epoxy resin emulsion,waterborne epoxy curing agent,pigments and fillers and various additives on the performances of…
Two kinds of porphyrins [ p-(niacin)C2O-TPP, o-(niacin)C2O-TPP] and p-(niacin)C2O-TPPZn, o-(niacin)C2O-TPPZn modified with nicotinic acid were designed, synthesized and characterized by elementary analysis, UV-Vis, 1H NMR, IR and fluorescence spectrum, the conformations of Zn porphyrins were sought by theoretical calc…
A super-absorbent polymer was synthesized by the method of microwave radiation using non-ionic water group(xanthan gum,chitosan, Konjac gum)as monomer.The effects of the cross-linking agent,pH,the concentration of monomer,the microwave power,radiation time and temperature indicators on the absorbency of super-absorben…
The blend of poly L-lactic acid(PLLA)/ starch acetate(SA) containing triethyl citrate(TEC) and tetrabutyl titanate [Ti(OBu)4] was prepared by blend technique of twin-screw melt extrusion.The effects of TEC,Ti(OBu)4 and SA on the mechanical properties and melt flowing rate(MFR) of PLLA/SA were investigated.The results…
ZIF-68(Zeolitic imidazolate frameworks) was selected as support for preparing Pd/ZIF-68.The prepared Pd/ZIF-68 was characterized by XRD,N2adsorption-desorption.The catalytic performance of Pd/ZIF-68 was also investigated in styrene hydrogenation.The results showed that Pd/ZIF-68 could effectively catalyze styrene hydr…
SiC/YAG ceramic composites to which YAG(Y_3Al_5O_(12),yttrium aluminum garnet,the reaction product of Al_2O_3 and Y_2O_3) is added as the main sintering additive have great potential for their application in many areas because of their many excellent properties.Research development of SiC/YAG ceramic composites in rec…
Characteristics of the 3rd generation technology for ethylbenzene production from FCC dry gas and its industrial ap-plication in the 80,000 t/a plant of Daqing Zhonglan Petrochemical Company were described.The results from the plant showed that the technology was characterized with high activity,high product quality,l…
The mechanical and dynamic properties of trans-1,4-polyisorpene(TPI with supported vanadium catalyst)/medium vinyl polybutadiene rubber(MVBR)blends with different TPI contents were studied.The results indicated that with the increase of the content of TPI,and the increase of optimum cure time,tear strength,elongation…
brass plate and strip processing plays an important role in the non-ferrous metal field. The environmental requirements on each section of the brass strip workshop in a high quality brass plate and strip project are introduced in this article. Aimed at these requirements,ventilation and air-conditioning design thought…
In recent years,left-handed metamaterials have been extensively studied due to their unique properties.A new kind of structure with left-handed electromagnetic characteristics was designed and analyzed.It was composed of dielectric resonators working at transverse electric resonant mode,which were embedded into a para…
The applications of graft copolymer of acrylamide onto starch in papermaking were reviewed in this paper,the research focus and development trend were discussed emphatically.
In order to improve the reliability of PWR steam generators,alloy 690TT has been developed and verified as the optimum steam generators(SGs)tubing material at present,based on wide operating and laboratorial experience.Alloy 690TT is and will be one of most popular tube material of present and future commercial nuclea…
To investigate the effects of concentration and core-shell spherical particles on particle sizing in light extinction method,and based on Lambert-Beer Law,a series of experiments on emulsion particle sizing at different concentrations for PBA/PMMA core-shell particles are carried out by using multi-spectral light exti…