Materials Literature
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The compatibility of BDNPF/A plasticizer(bis(dinitropropyl) formal(BDNPF) /bis(dinitropropyl) acetal(BDNPA))with three kinds of liners and two kinds of thermal insulation layers were studied through impregnation experiments.The properties of liner and insulation for with and without BDNPF/A were investigated by fourie…
A series of flame retardant copolyesters were prepared by polymerization reaction using phosphorus flame retardant CEPPA as the third monomers.The chemical composition,sequence distribution,crystallization property,phosphorus content and limiting oxygen index of the flame retardant copolyester were characterized by me…
Rigid PVC foam is prepared by one-step compression molding.Effects of various additives such as AC(foaming agent),ZnO(activator),DCP(crosslinking agent),CaCO3(nucleating agent),Sb2O3(flame retardant)are probed.The result shows that the optimum dosage is:PVC 100,stabilizer 5,Hst 0.2,PE wax 0.3,AC 5,ZnO 1,DOP 6,DCP 3,li…
Extract Al2O3 was extracted from fly ash using alkali high-temperature calcinations,obtain two different structures' Al2O3 were obtained by two different technologies at the phase of Al(OH)3 separated out,and two different Al2O3 were used to modify PP resin.The results showed that,the tensile strength of PP modified b…
Nitrogen oxides are one of the state total pollutant control objective in the 12th five-year period.The paper summarizes the development of denitrification industry of power plant in China.Based on the discharge status and control regulations of nitrogen oxides from thermal power plant,the current NOx control technolo…
To ascertaining rational MgO ultimate content of hydraulic concrete,the autoclave-treated expansibility of different grading concrete mortar samples and autogenic volume change of concrete samples mixed with MgO different content had been determined.The results showed that the autoclave-treated expansibility of differ…
The amount of PM iron loss varied according to different driving conditions.In this paper,the actual current of the prototype motor was used to perform 2D finite-element analysis and obtain the flux-density waveform in conditions of no-load,maximum torque per ampere control and flux-weakening control.The iron loss of…
The static hysteresis loop of CoFeSiBCr glass-covered amorphous wires was measured by vibrating sample magnetometer.The wires have no axial domains.The noise suppression film materials containing Co-based glass-covered amorphous wires were prepared for the first time.The microwave parameters were measured by microstri…
With the improvement of the quality of hot strip,the higher requirements for the roll,especially the work roll of the finishing unit were put forward.Through the adjustment of composition,process optimization and trial application,the comprehensive properties of the indefinite chilled roll produced by centrifugal cast…
The advances in modified silicone oil manufacturing technology were reviewed in this paper.The features of technology for industrial production of amino-modified silicone emulsion were discussed and reviewed. Processes of modified silicone oil producing ,optimum conditions and new development have been presented in th…
Aiming to use feather effectively,the composition and structure characteristics of feather were summarized,application field of feather was analyzed,the different hydrolysis methods of feather and its newest research progress were summarized,the application prospect of feather was discussed to provide guidance for pro…
The short glass fiber(SGF)/polypropylene(PP) foam composites modified with maleic anhydride grafted PP(PP-g-MAH) were prepared via post-foaming process in designed dies.The influence of PP-g-MAH content on the cellular morphologies,microstructures and mechanical properties of composites were investigated.The results s…
Objective To evaluate the corrosion behavior of fired Ni-Cr alloy after polishing in artificial saliva.Methods Electrochemical methods were used to measure the self-corrosion current density(Icorr),polarization resistance(Rp) and self-corrosion potential(Ecorr) of two subjects.And the polarization curves of them were…
To synthesis one of the metabolites of miriplatin cis-chloroiodide [(1R,2R)-(-)-1,2-cyclohexanediamine]platinum(Ⅱ),The title compound was produced from K2PtCl4,dimethyl sulfoxide,(1R,2R)-(-)-1,2-cyclohexanediamine,AgNO3,KI and KCl as raw materials.The structure and component were characterized by elemental analysis,ES…
The common defects of copper-nickel alloy ingots include segregation,porosity,crack,shrinkage,porosity,cold shuts,stream claw and so on.The defects of ingot in different process conditions are compared and the influence of casting temperature,casting speed and cooling water pressure on the casting quality are discusse…
We studied the phase components and magnetic domain structure of sintered NdFeB permanent magnet after magnetization and high-temperature treatment using magnetic force microscopy(MFM) and X-ray diffraction(XRD) as well as high-coercivity Co-Cr magnetic probe,made an analysis of the effect of magnetization and heat tr…
A series of sulfur composite materials which used acetylene black,aphanitic graphite,Cabot Vulcan XC-72 carbon black and Cabot Bp2000 super conductive carbon black were prepared.The physical structures were determined by X-ray diffraction,scanning electron microscopy and specific surface area measurements.The electroc…
PP/Ground Rubber Tire(GRT) powder microcellular foams were prepared by pressure quench method using supercritical carbon dioxide.The results showed that with the addition of GRT powder,the cell structure of PP/GRT blend was destroyed,and the PP/GRT blend foams had a unique bimodal(large and small) cellular structure.T…
A combined casting-forging process for an oversize coal-movement plate was de veloped which integrated the advantages of conventional die forging and casting technique and made sure that the product made by the combined casting-forging process can have the same shape,dimensions,functions and service life with that mad…
Aiming at the problems of corrosion and frequent perforation occurred in underground pipelines at some high H2S content blocks of Linpan Oil Production Plant,the current gradient method,potential gradient method and ultrasonic thickness measurement technique were applied to corrosion tests of three typical pipelines.I…