Materials Literature
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The experients of pulsed electric field and rare earth on the solidification process of Fe-C-S alloy were carried out,which was prepared with industrial pure iron,graphite,iron sulfide and other raw materials.The impact of pulsed electric field and rare earth on solidification organization,sulfur distribution and incl…
Among the anions,fluoride ion is the smallest one and has unique chemical properties because of the high electronegativity and strong basicity.Since fluoride ion is important for human health and environment,the detection of fluoride ion has received much attention recently.Up to now,numerous fluorescent and chromogen…
Recent progress in the metallic oxides catalysts for vapour phase ortho-selective C-alkylation of phenol with methanol was reviewed. Different catalysts systems as well as synthesis processes for vapor phase ortho-selective C-alkylation of phenol with methanol that yields o-cresol and2,6-xylenol were compared,especial…
Polyamide(PA6) was a hygroscopic material and its hygroscopic behavior was sample thickness,temperature and humidity dependent.The relationships between dealing time and water absorption of glass fiber-reinforced PA6 with different thickness at different temperatures and humidity were investigated.The influence of moi…
Cationic dyeable modified polyester fiber is a new type of differential fibers,characteristic of good dyeability and high economic value.The method to test its dyeability is researched in this paper.The absolute value difference of the two independent tests is less than 2.5%.
The preparation technology and properties of titanate composite minerals doping neodymium were investigated with a neodymium simulating trivalent actinide to establish the foundation of the safety of the radioactive waste solidification processing.NdⅢ-doped zirconolite-base titanate composite minerals were prepared vi…
The inhibition performances of imidazoline and oxygen acetylene methyl amine of two different inhibitors for N80steel in the oilfield-produced solutions containing saturated CO2is investigated at a high temperature and a high pressure with weight loss methods. The solubility and decentrality are also analyzed. The cor…
Processed recycled PC and recycled ABS blended by vane extruder,analyzed the processing character of vane extruder and its impact on blends.The influence of three compatilizers to the compatibility,mechanical properties,thermal transition temperature,melt flow rate and morphological structure of recycled PC and recycl…
A theoretical study on 13 oligopeptides of glycine and alanine by density function theory(DFT) is given in this paper. Geometric structures, vibration frequency, average binding energies, dipole moment are studied, and IR spectra of the oligopeptides are examined. Results show that with increasing number of residues t…
The effect of crystallinity on the mechanical properties of polyoxymethylene(POM) composite with glass fiber and carbon fiber was investigated.Mechanics investigation showed that the glass fiber and carbon fiber reinforced POM composite joining novolac could make its mechanical properties improved further.Thermal anal…
The SPH method is introduced to simulate collision process between granulating wheel and molten steel slag because traditional method based on grid cannot effectively solve large deformation problems. The molten steel slag was replaced by aluminum liquid since some of physical parameters of molten steel slag are uncle…
Structures,stabilities,and magnetic properties of Ptn(n=1-9) are calculated with generalized gradient approximation functional BPW91 and three-parameter hybrid density functional B3LYP in density functional theory.The methods give same stable structures and same lowest-energy structures but different stable order of s…
The extraction conditions of Flammulina velutipes polysaccharides by ultrasonic-assisted extraction were optimized using single factor experiment and orthogonal experiment.The results showed that the optimum extraction conditions were as follows:solid-liquid ratio 1∶40(g∶mL),ultrasonic power 70 W,ultrasonic time 10 mi…
HDPE/NBR composites were prepared by melt blending. The dynamic mechanical properties of the composites were investigated via dynamic mechanical analysis(DMA). The results showed that the pure HDPE had regular crystal particles and clear phase interfaces,and it mainly displayed as brittle fracture. The temperature of…
In order to study the effect of acid and alkali composite pretreatment on the hydrolysis efficiency of dregs lignocellulose,and the feasibility of conversion of dregs cellulose into ethanol,dregs from boiling water extraction of decoction were used as raw material.The dregs were pretreated by a two-stage process for d…
Bi(Mg1/2Ti1/2)O3-0.38PbTiO3 ceramics were prepared by conventional powder-processing method.The effect of the MnO2 content on the microstructure and dielectric properties were investigated.It showed that the lattice structure gradually changed to pseudo-cubic phase with MnO2 content increasing.When the MnO2 content in…
The polyethylene oxide like( PEO-like) film prepared by plasma polymerization has high hydrophilicity and anti-bioadhesion,which can be used to modify the biomaterial surface to improve the inhibition of protein adhesion,platelet adhesion and anti-bacterial adhesion. The PEO-like films on stainless steel( SS) substrat…
Bithiophene bridged bis-terpyridine(BTTPY) was synthesized in a total yield of 13%,via formylation,Krhnke pyridine synthesis and Suzuki coupling with 2,5-dibromothiophene as raw material.UV-Vis and fluorescence spectra of BTTPY exhibit strong red shift in acetic acid and trifluoroacetic due to strong protonation.UV-V…
Based on the excellent electrocatalytic effect of the graphene nanoplatelets modified electrode(GHNP/GCE) toward the electrochemical reaction of ascorbic acid,a new method for electrochemical determination of ascorbic acid was established.Compared with the bare glassy carbon electrode(GCE),the graphene modified electr…
The performance of NO reduction by reburning with calcium acetate(CA),limestone modified by acetic acid(LMAA) and limestone modified by wood vinegar(LMWV) in simulated O2/CO2 coal combustion gas was investigated using a drop tube furnace.The effects of operating parameters on nitric oxide reduction were explored,inclu…