Materials Literature
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The effect of the pile-up which appears in the process of mechanical ruling of grating on aluminum film is very obvious to the quality of mechanical ruling of grating.In order to study the pile-up properties of grating aluminum film,this paper analyzed the nano indentation test process of grating aluminum film by the…
There are many literature about the reactions of cobalt-based catalytic materials in Fischer-Tropsch synthesis( FTS). However,the literature about the structural changes of cobalt-based materials before and after the FTS reactions due to the hydrothermal environments is sparse. This article applied FESEM to study the…
In order to improve the short-circuit current of the polymer solar cells,water-soluble silver nanoparticles( 40 nm) were used to attach on Zn O film which acted as electron transport layer of the device with the structure of ITO / Zn O / Ag NPs / P3HT∶ PC[60]BM / Mo O3/ Ag. The resonance absorption peak of localized s…
MP,PEPA were composed to be intumescent flame retardant(IFR),then three natural polymers,lignin,chitosan and sodium alginate,were selected to substitute for part of PEPA,the flame-retardant composites based on P(3,4)HB were prepared by means of melt blending. The thermal property,combustion performance,flame retardant…
Aluminum alloy silver coating is prone to appear bubbles and peeling phenomenon,which can be attributed to the composition segregation,organic infiltration and the existence of residual stress,resulting from the pre-processing. New pickling technology without volatilization had been adopted on the aluminum alloy surfa…
HMS and Ti/HMS molecular sieves catalysis were prepared with twelve alkyl amine.MSU and Ti/MSU molecular sieves catalysis were prepared by twelve alkyl polyoxyethylene ether.The samples were characterized by X-ray diffraction,N2adsorption-desorption and FT-IR.The catalysis performance were evaluated with cumene epoxid…
In this paper,ascorbic acid as a new combustion agent,composite oxides of Cobalt ferrite were prepared by combustion.This paper investigated the molar ratio of ferric nitrate and bismuth nitrate affected on composites by XRD.The morphology of composites was characterized by scanning electron microscopy.The surface are…
Mesoporous solid spheres were synthesized in water- acetone media using cetyltrimethylammonium bromide as the template agent under condition of water- to- acetone molar ratio lying between 1 and 15. Then Si O2nano- hollow spheres with micropore structure were synthesized from the mesoporous solid spheres by hydrotherm…
This experiment was conducted to study the effects lactic acid bacteria( LAB) mixture on silage quality of bamboo shoots shell( BSS). The by-product of fresh bamboo shoots after cooking processed,BSS,was used for silage and was supplemented with 10 % wheat bran,15 % LAB mixture( Lactobacillus casei ∶Lactobacillus case…
In order to obtain dispersed phase particles with good electrorheological property,γ-amino propyl triethoxy silane(APTES)was used to modify fly-ash floating beads.Polyaniline(PAn)was coupled with chemical bonds to form core-shell structural composites,with mod-FAFB as core and PAn as shell on the surfaces of decorated…
C16Guerbet alcohol(2-hexyl-1-decanol) was synthesized from n-octanol by using supported Cu O-Ni O catalyst with KOH. The effects of catalyst support,Cu O-Ni O loading( %) and Cu O / Ni O molar ratio on the synthesis were investigated so that the best Cu O-Ni O catalyst was chosen( i. e.,the catalyst is Ca CO3 supporte…
The paper prepared activated carbon( AC) with high specific surface and considerable mesopores from peanut shell by microwave irradiation,and studied effects of the type of activators,impregnation time,impregnation ratio,the concentration of activators,microwave power and irradiation time on the adsorption capacity of…
In order to obtain a switchable surfactant that has inorganic salt tolerance,CO2- switching responsive performance of N- dodecyl polyoxyethylene( 3)- N,N- dimethyl tertiary amine( C12EO3A),embedded with polyoxyethylene( EO) segment between the long- chain alkyl group and tertiary amino group was investigated. Results…
Gd2O3samples(S-CA, S-OA, S-EDTA) with different morphologies are obtained via thermal treatment from the precursors Gd(OH)3, which are hydrothermally prepared using different additives: Citrate acid(CA), Oleic Acid(OA) and Ethylenediaminetetraacetic acid(EDTA). XRD patterns show that the structure of the as-prepared s…
Acrylamide,itaconic acid and methacryloyloxyethyl trimethylammonium chloride were used as monomers to prepare Amphoteric polyacrylamide(AmPAM) in this thesis.The strengthening,retention and drainage performances in mixed recycled fibers were tested by altering the adding dosage and pH value.The water retention value a…
Homopolymers including polypyrrole(PPy) and poly(N-methylpyrrole)(PNMPy) and copolymer of pyrrole and N-methylpyrrole(PPy–PNMPy) were prepared by chemical oxidation polymerization using ferric chloride as oxidant and p-toluenesulfonic acid as dopant. The microstructure of the three kinds of polymers were characterized…
Effects of different dissolved oxygen( DO) on the production rate of γ-PGA,at the 8,32 and 56 hours were studied,using the 5L fermentor to synthesis γ-PGA with Bacillus licheniformis. Results indicated that neither high nor low DO value could efficiently accumulate γ-PGA based on the analysis of relevant data. The res…
Influence of fatty alcohol ether phosphate salt on the dispersion property of carbon fiber in oil material was investigated by the resistance strength monofilament,surface charges,the settling time and the turbidity,et al.The surface morphologic structure and chemical composition of carbon fiber before and after leach…
Al N powders were prepared by the carbonthermal reduction with Al_2O_3 and carbon powder as the raw materials. The influence of raw materials( mole ratio,particle size),synthesis temperature and holing time on the preparation of Al N powder were investigated. Powders properties were characterized by XRD,SEM technology…
The effect of introduce of bis-( 2-ethylhexyl) phosphate( simplied as P) ligand in Ni( naph)2-Al( i-Bu)3( simplied as Al)-BF3·OEt2( simplied as B) catalyst system on polymerization activity of butadiene was studied,and the structure of obtained polymer was characterized by Fourier transform-infrared spectroscopy, gel…