Materials Literature
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Soaping of reactive cotton dyeings with low-foam and anti-staining soaping agent K-5 at low-temperature is carried out.The optimized process is:K-5 soaping agent3 g/L,soaping at60 ℃ for 20 min.Taking 50 machine cylinders,each cylinder carrying 400 kg cloth for an example,K-5 can save steam fee of RMB 210 000 and water…
The research progress of the MAO technique on titanium alloy and applications were introduced.The factors of micro-arc oxidation technology were analyzed.The kinds and concentration of electrolyte,electric parameters and processing time have a marked influence on the coating quality.The prospect of MAO technique was a…
In this paper,a new type of green medium temperature curing agent epoxy resin was developed using rosin acid anhydride curing agent,which was used to manufacture the green medium temperature curing agent epoxy prepreg by mixing with glass fiber fabric.The experimental results show that physical and chemical property,m…
By using chemical etching and ?uorination, we have made nano papillae construct on the aluminum surface with a hydrophobic properties which can prevent on the bonding wall from solid dust particles in the gas stream so that the wall can be cleaned more easily. The results show that when using the 10mol/L of NaOH solut…
Ti-28Nb-15Ta-4Zr alloy with different rolling deformation was characterized by transmission electron microscopy.The results indicate that the alloy shows bcc β single phase before rolling,and deformation-induced α″ martensite is found during rolling deformation.The phase of α″ martensite is orthorhombic system and its…
A method for preparing high pure Mg(OH)2 powders was reported by di-n-butylamine precipitating Mg2+.The purity was measured by FT-IR,TG and XRD,the surface topography was analyzed by SEM.The thermodynamic and kinetic process of reaction system was also discussed.The results showed that the magnesium hydroxide powders…
Pb-Ag coating and Pb-Ag-Co coating were electrodeposited on Al sheet in a methyl sulfonic acid bath to afford Al / Pb-Ag and Al / Pb-Ag-Co anodes. The catalytic process and mechanism of Co in as-obtained anodes during zinc electrodeposition were investigated. Results indicated that Al / Pb-Ag-Co anode had better elect…
BaFe12O19 can be prepared by co-precipitation method and sol-gel method.BaFe12O19 can be presented hexagonal-plate shape by co-precipitation method.Its average particle size is between 0.4～1μm,radius-thickness ratio between 2～5,and Ms and Hc is 59.57emu/g and 1975Oe respectively.BaFe12O19 was synthesized by sol-gel co…
Objective To prepare and evaluate L-carnitine entrapped polyethylene glycol blocked polye-caprolactone electrospun fibrous mats by aqueous in oil emulsion method.Methods L-carnitine was dissolved in water which used as inner aqueous phase,and polyethylene glycol blocked polye-caprolactone with 1∶ 75 and 1∶ 5 of polyet…
Because of the excellent mechanical properties,good biocompatibility as well as biodegradable absorption characteristics,magnesium alloys have been a hotspot in the field of biomedical materials and also attracted increasing attention in the field of medicine.But the research for medical application is still in the ea…
Ruthenium in aqua regia-insoluble residue was dissolved by an alkaline pressure oxidation method with sodium hypochlorite as antioxidant in alkaline system, followed by content analysis of ruthenium using the thiourea-spectrophotometry. Ruthenium could be converted into the solution and the accompanying main impurity…
We use second-anodization to prepare high-quality alumina templates,and then use magnetron sputtering to grow amorphous SiC material on these anodic alumina templates. Atomic force microscopy ( AFM) results show that,it is able to form a layered,point-like and rod-like SiC nanostructure at different sputtering pressur…
Poly(amide-imide) had a wide application in engineering plastics and so on.With ionic liquid as green reaction medium,a poly(amide-imide) derived from L-alanine and 3,3',4,4'-biphenyl tetracarboxylic acid was synthesized.The polymerization conditions were optimized by multi-targeted orthogonal array design.The resulti…
The crystal structure,electronic structure and magnetic properties of CuFeSb have been studied in detail by means of first-principle calculations.In contrast with the metallic antiferromagnetic(AFM)or superconducting state of iron pnictides and chalcogenides under current studies,CuFeSb exhibits a metallic,ferromagnet…
The solvent based environmental friendly water-repellent reagent was prepared using epoxy and silicone resin as main filming material,low-toxic solvent as solvent,and nano-silica powders as filling.The water contact angle the paperboard coated with water-repellent reagent was up to 172.4°.The optimum formula determine…
The Lead-free piezoelectric ceramics(0.8-x)Bi0.5Na0.5TiO3-0.2Bi0.5K0.5TiO3-xBi(Zn2/3 Nb1/3)O3(mole fraction 0≤x≤0.06)(0.8-x)BNT-0.2BKT-xBZN)were prepared by the conventional ceramic sintering technique.The microstructures,surface topography,dielectric properties and piezoelectric properties of these piezoelectric cera…
It is common to see that concrete structure service in the environment of acid and salt but the study on influence of mixed erosion media on properties of concrete is rare.The effect of sulfuric acid and sulfate on concrete erosion condition,mechanical property and bulk stability were investigated.The deterioration me…
Comb-type copolymer of poly(maleic anhydride-dodecene styrene)(MASC) was synthesized.A hybrid composite of MASC encapsulating SiO2 nano-particles was prepared based on simple milling.The comb-polymer MASC was characterized by 1HNMR and FTIR.The polymer hybrid MASC-SiO2 was characterized by FTIR,TG,contact angle,TEM an…
Wolong Lake Ecological Reserve Area is centered by the natural reserve area of Wolong Lake. Due to the urban expansion, industrial explosion and agriculture development, ecological problems such as water reduction, destruction of river water networks, wide distribution of dispersed swags, decreased ability of regional…
Graphite oxide(GO)was synthesized by Hummers method and treated with ultrasound,then high quality graphene was obtained through reduction using an efficient and non toxic reducing agent of thiourea dioxide. Graphene was characterized by SEM,XRD and RS. Experimental results show that comparing with the graphene prepare…