Materials Literature
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Main features of Pickering emulsion were presented.Mechanism of the particles-stabilized emulsion and pattern of arrangement of particles distributed on the oil-water interface were summarized.Effect of the wettability of the particles,surface uniformity,particle concentration and size,pH and electrolyte concentration…
Aiming at the disadvantage of the conventional Bouc-Wen model in formulating the asymmetric hysteresis of piezoceramic actuators,a modified Bouc-Wen model was proposed so as to improve the accuracy of model-based compensation control of piezoceramic actuators.The modified Bouc-Wen model was introduced by ameliorating…
This paper analyzes the deterioration of the internal conditions and mechanism of the durability of concrete structures on the formation and development of the conditions of the the concrete microscopic cracks under stress,and technical measures to reduce the permeability of the concrete structure to improve the durab…
In order to avoid the generation of Al4C3 and AlN during heat treatment of carbon composite refractories with the addition of aluminum powder,this paper probes the effects of MnO2 on the phase composition and microstructure of C-Al materials.C-Al and C-Al-MnO2 specimens were prepared by using graphite flake,aluminium…
Monomethoxy-poly(ethylene glycol)-b-poly-DL-lactide(PELA) nanoparticles were fabricated by phase separation and solvent extraction.The optimum particles were obtained by using ethanol and acetone as the oil phase and deionized water as the aqueous phase at PELA concentration in oil phase 6.5 g/L,ethanol concentration…
α-Ni( OH) 2 and α-Ni( OH) 2 / GO composite material is prepared by homogeneous precipitation method and their micro-structures and electrochemical properties are studied. XRD tests reveal that the α-Ni( OH) 2 / GO composite material has larger inter layer spacing. The FT-IR shows that the vibrational absorption of NO3…
To obtain a new catalytic materials with good dispersion,easy acid modulation of carrier and high thermal stability,the composites of NiAl-LDH/MMT was prepared respectively by intercalation method and in situ method.The compounds was characterized by XRD,IR,TG-DTA,BET and SEM measurement.The intercalation method was a…
Methods of improving the chrome tanning efficiency and supporting technologies such as high absorbed chrome tanned,no-pickling chrome tanned and less chrome or chrome-free tanning method are introduced.A variety of processing method and reuse of chrome tanning wastewater and its application is also elaborated.Finally,…
Cerium doped nano mesoporous titania(Ce-MTiO2) with anatase crystalline structure was prepared by template method.The photocatalytic degradation of the two organophosphorus pesticides(dichlorvos,omethoate) was studied over the Ce-MTiO2 using high pressure mercury lamp(500 W) as light resource.The catalyst showed excel…
The influential factors of shear strength of epoxy structural adhesive were discussed in this paper.The content of carboxyl-terminated butadiene acrylonitrile(CTBN),the surface treatment of substrate and the kind and content of fillers had significant impacts on shear strength of the epoxy adhensive.The shear strength…
The corrosion behaviour and stress corrosion cracking of 2205 duplex stainless steel in H2S medium with and without CO2 were studied by u-shaped bending specimen soak,slow strain rate testing and electrochemical measurements. The fracture morphology after slow strain rate testing was observed by scanning electron micr…
Soybean was fermented and the fermentation broth was used to make a fermented natto beverage,with the addition of some other ingredients. The optimal fermentation conditions included inoculum 2%,fermentation temperature 35℃ and fermentation time 18h,on which the enzyme yield reached 228IU/ml;the optimum formula of the…
Nano-sized spherical polyelectrolyte brush(SPB) refers to a kind of macromolecular selfassembled structure that polyelectrolyte chains densely attach on spherical nanoparticles by one end.This unique structure can regulate the surface properties of nanoparticles,which makes SPB become suitable candidate in preparation…
A rust layer was obtained by X80 steel immersed in Yingtan soil simulated solution for 7 days,the surface morphology of the rust was analyzed by SEM,and the electrochemical behaviors of X80 bare steel and X80 steel with rust layer were investigated by polarization curves and EIS.The SEM results show that the rust laye…
Graphite oxide(GO) was synthesized by the modified Hummers' method,followed by a hydrothermal route to form reduced graphite oxide(RGO)-InVO4 nanocomposite,of which composition and morphology were characterized by X-ray diffraction(XRD),transmission electron microscope(TEM) and high resolution transmission electron mi…
The three different polar additives were introduced into improve the surface polarity of polypropylene bumper.The contact angle,the surface tension and the mechanical properties of different PP blends were tested.The results showed that with the content of 1% PO1 or 1% PO2,the contact angles of water on PP blends were…
The thermosensitive copolymer poly(e-caprolactone)-b-poly(N-isopropylacrylamide) was synthesized by reversible addition-fragmentation chain transfer polymerization(RAFT) using a tetra-hydroxyethyl terminated porphyrin as a core initiator.The copolymer was characterized by fourier-transform infrared spectroscopy,1H NMR…
In order to investigate the deformation behavior and failure mechanism of magnesium alloy at high temperature and high strain rate,the dynamic compression tests for the vacuum die casting AM60B magnesium alloy were carried out with the split Hopkinson pressure bar at the strain rates from 1600s-1 to 4500s-1 and at tem…
The slit rolling is one of new processes,which make use of uneven deformation of metal along rolling direction to make one workpiece cut into two or more independent branches through using special system of shape of passes and guides.The finite element software Deform 6.1 was used to simulate the rolling process of 4-…
he Ethylene-vinyl Acetate Copolymer(EVA)/Chlorinated Polyethylene(CM) thermoplastic vulcanizate(TPV) were prepared by dynamic vulcanization and were reinforced by filling HDPE resin,the mechanical properties,morphology and crystallization behavior of the dynamically vulcanized EVA/CM blends were investigated.The resul…