Materials Literature
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This paper introduced a method of the radiation crosslinking of radiation crosslinking,foaming,two preparation of ultra-thin thermal isolation of functional materials,and properties of the material.
Chemical treatment was carried out to modify polyurethane foams by chitosan.The modified carrier was used to immobilize microorganism and thus to treat wastewater containg strong NH4+-N.After treatment,the density of polyurethane foam,the pore diameter,the pore ratio and the water containing rate and other parameters…
According to the current calculation method of gear strength,comprehensive analysis of the effect of friction between teeth on the calculation of acceleration and reduction transmission of large,small tooth root bending stress.The results show that: considering the effect of friction between teeth after,from the wheel…
Fe /CuZnSi catalysts are prepared by precipitation-impregnation method. CuZnSi precursor is obtained by precipitation reaction of the solution of Cu and Zn nitrates with K2SiO3 solution. FeZn2Cu3O6. 5 crystal is observed after CuZnSi precursor is impregnated in Fe( NO3)3 solution. FeZn2Cu3O6. 5 crystal is decomposed i…
The specific surface areas of two different sepiolites were gained by BET,and their micro-morphology were analyzed by Scanning Electron Microscope(SEM).22 modified samples were gotten through acidification,alkalization and calcium chloride,and the moisture absorption rate of original samples and modified samples were…
Cobalt Phthalocyanine /SnO 2 / TiO 2 nanocomposite are synthesized by in-situ process.The products are then characterized by means of UV,IR,XRD and SEM methods.The experimental results indicate that different degree of red shift on the Q band with maximum absorption of the substitute phthalocyanine occur,that the vibr…
Nanocrystallization kinetics of the α-Fe phase and its effects on the soft magnetic properties of the Fe76-xC7.0Si3.3B5.0P8.7Cux(x=0,0.3% and 0.7at%) amorphous alloys have been investigated in detail.It was found that a small amount of Cu additions(less than 0.3%) can suppress precipitation of the α-Fe nanocrystals an…
Through hot compression simulation tests of TC11 alloy,the strain rate sensitivity factor of the alloy was calculated.The hot working map of the alloy was established.An optimizing method for the forging process of titanium alloy blisk was proposed based on the hot working map.The forging process for TC11 alloy blisk…
The glass fiber reinforced St-AN AS composite were prepared.The effects of AS resin,glass fiber,coupling agent,other resins and processing temperature on the properties of GFAS were studied by mechanical tests and melt flow rate tests.Results showed that the higher the AN content was,the higher stiffness of GFAS had,a…
In this paper,doped polyaniline(abbr.PANI) was prepared by using emulsion polymerization method and using MnO2 as the oxidant,adding surfactant(SDBS,SDS,T-X100) at ambient temperature.The morphology and structure of doped PANI(PANI-SDBS,PANI-SDS,PANI-T-X100) were characterized by scanning electron microscopy(SEM),Four…
The combustion characteristics of waste filter bags from three working sections in a cement plant and new filter bags of the same model were studied by thermogravimetric analysis. The results showed that there were three obvious stages of weight loss in the waste filter bag combustion curves, and the first two stages…
Porous metal was made by Selective Laser Melting(SLM), one of 3D printing technologies and highly advocated in the world. Regular –controlled manufacturing process of metal pores was studied through changing the scan forms of fiber laser. Through the test of Scanning Electron Microscopy(SEM), the effects from scanning…
Nb2Sr2- xYxO7ceramics were prepared by conventional solid state reaction method. The influence of Y on the crystal structure,surface morphology,ferroelectric,dielectric and piezoelectric properties of Nb2Sr2- xYxO7ceramics have been investigated. The results show that yttrium doped Sr2Nb2O7ceramics,substituting Y3 +fo…
CuO/meso-Al2 O3 was prepared by two-step synthetic method.The catalytical activity of CuO/ meso-Al2 O3 catalyst for styrene oxidation was investigated.The results showed that CuO/meso-Al2 O3 catalyst had good catalytical activity for styrene oxidation.The catalyst calcined at 350 ℃ and containing 20% CuO has the best…
Aluminum alloy corrosion in airplane tank water is a serious problem.The influence of temperature on the initial corrosion behavior of aluminum alloy 2A12 in a simulated tank water environment is studied by observing the corrosion morphology,maximum pitting corrosion depth,maximum pitting corrosion area,surface corros…
The precipitation behavior at 525 ℃ in two low carbon micro-alloyed steels containing Nb and Nb-Cu elements was studied by metallographic observation,hardness measurement and TEM technique.The experimental results show that the microstructure of tested steels are similar and stable even though tempered at 525 ℃ for 20…
Various kinds of rabbit hair treatment technologies were introduced to expound the feasibility and status quo of pure dehaired angora worsted fabric from different aspects,such as the production of rabbit hair raw materials,carding processing of rabbit hair,yarn production of pure rabbit hair,weaving technology of rab…
The performances and impedances of direct methanol fuel cells with single channel serpentine flow field and multichannel serpentine flow field are studied.The VA(volt-ampere)characteristics and AC(alternating-current)impedance of serpentine flow field methanol fuel cell are measured in this experiment,and the effects…
The production of phenolic resin and plastic abroad from 2011 to 2012,application of novel phenolic foam in fire prevention and building insulation,new product developments of phenolic molding compound with improved strentth,heat-resistance and high electrical properties were reviewed.The research progress in synthesi…
Protein-based bioplastics(PBBs),as a novel family of biodegradable plastics,have attracted increasing attentions thanks to their noticeable advantages in that they could be biodegraded completely and used by consumers in an environmentally friendly manner.However,PBBs are prone to be brittle under stress and their mec…