Materials Literature
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The optimum curing condition parameter of melting temperature at 160℃, curing temperature at 160℃ and total curing time at 4min, was gained by the orthogonal experiment, based on the effect analysis of different curing condition on film performance.
The Al2O3/TiO2 coating has been applied on Mg-8.5Li Mg-Li alloy material surface using oxygen-acetylene flame spraying technology,the coating structure morphology has been investigated.The thermal vibration resistance and anti-neutral salt solution corrosion of Al2O3/TiO2 coating being applied by oxygen-acetylene flam…
The absorbent capability of fibers can be improved greatly by introducing carboxymethyl group into the cellulosic fiber structure.Carboxymethyl cellulose(CMC) absorbent gauze with different substitution degrees(DS) was prepared using common cotton yarn as raw material through controlling the amount of chloroactic acid…
Electrodeposition of zinc-tin-nickel ternary alloy on the surface of copper foil from pyrophosphate system was investigated.Effect of current density,temperature,pH on the appearances of planting were discussed respectively.Process conditions for electroplating zinc-tin-nickel ternary alloy on the surface of copper fo…
The reduction and nitridation mechanism for preparation of VN with V_2O_5 as raw material and carbon powder as reductant was studied,the effects of mass ratio of C to V_2O_5 and temperature were examined,and the products analyzed.The results show that the reduction of V_2O_5 is successive,and indirect reduction occurs…
Co2-Z type ferrite was successfully prepared by using mixed nitrate powders via spray drying as the staring mattering materials. X-ray diffraction patterns(XRD), scanning electron microscope(SEM) and vector network analyzer have been used to characterize the crystal structure, morphology and electromagnetic property.…
The effects of different main salts on the deposition rate and current efficiency of copper plating from HEDP system, and on the appearance, thickness, and adhesion strength of copper coating were studied by testing in Hull cell and square cell. The plating bath (pH 9.0) is composed of HEDP 160 g/L, Cu2+ 10 g/L, and K…
GaN based devices are currently performing far below their theoretical potential because it is not possible to obtain bulk crystals of GaN,a substrate of a different material must be used with GaN-based semiconductors when growing crystals for device production. Many methods such as hydride vapor phase epitaxy(HVPE),h…
Composite film was prepared with Fe78Si9B13 amorphous powders as reinforced material and butyl rubber as matrix by means of compression molding,and influences of particle size and film thickness on the piezomagnetic property were studyed.The results show that the impedance of composite film increases with the decrease…
This review provides an overview of related methods of the knittability.In addition,the advantages and disadvantages of those methods are also discussed.Finally,the future research of the knittability is viewed.
Spinel lithium manganate samples modified with different proportions of magnesium element were prepared by high temperature solid state reaction.The X-ray diffraction(XRD) analysis indicated that the samples were all spinel structure without impurity phase.The Scanning electron microscopy(SEM) results showed that the…
Adding inorganic salt anhydrous calcium chloride to the emulsion systems,with 1-octadecene as the monomer,pentaerythritol tetraacrylate as cross-linking agent,2,2′-azobisisobutyronitrile as initiator,Span80 as emulsifier,cyclohexane as porogen,respectively,high oil-absorbing resins were synthesized by high internal ph…
Dynamic H2S removal equipment of oilfield oil-gas-water three-phase mixed gathering and transportation system is simulated indoor and used to evaluate the optimal applied conditions of efficient H2S scavengers ETTS-1 and alcamine solvents(MDEA-MEA and MDEA).The effects of initial concentration of H2S,temperature of de…
Gassolid reaction between alkali cellulose and propylene oxide was used to synthesize low degree of substitution hydroxypropyl cellulose (HPC). The influences of propylene oxide mass fraction, temperature as well as squeeze ratio exerted on both the etherification degree and propylene oxide effective utilization rate…
A facile aqueous electrochemical deposition approach was developed for the deposition of cuprous oxid.The morphology and structure of the as-prepared products were characterized by the techniques of powder X-ray diffraction(XRD) and scanning electron microscopy(SEM).The influencing factors such as deposition potential…
A bismaleimide composite material was subject to long-term( 1000 h) thermal aging at 150 ℃ under oxidative condition. The changes of physical properties and chemical structure of the composite were analyzed by means of different techniques,including gravimetric analyzer( TGA),dynamic mechanical analysis( DMA),X-ray ph…
The construction scheme of a polymer chemical comprehensive experiment with the theme of synthesis of ABS grafted powder was proposed,which was planned for undergraduates teaching.The aim of the teaching,the experimental steps,experimental principle and the innovation points,and the expected teaching effects of this e…
Environmental scanning electron microscope was used to research on the self assembly of the SMP-2 and SMC in aqueous solution,and the absorption of clay particles in the solution before and after aging in 220 ℃ for 16 h.According to the cross-linking mechanism,found a temperature protective agent and measured fluid pe…
In order to improve mobility and specific volume of ceftriaxone sodium,the crystallization process of ceftriaxone sodium was optimized.Firstly,ceftriaxone sodium crude was dissolved in water for injection,a contain amount of acetone was added and the water temperature was controled at 10～15 ℃,appropriate amount of act…
Soluble carboxymethyl silk fibroin was prepared from the waste silk by etherification of the water-fast silk fibroin and the monochloracetic acid in ethanol. Various factors on etherified degree of products(such as alkalized time, alkalized temperature, etherified time and etherified temperature, etc.) were discussed.…