Application of Graft Copolymer of Acrylamide onto Starch in Papermaking
The applications of graft copolymer of acrylamide onto starch in papermaking were reviewed in this paper,the research focus and development trend were discussed emphatically.
Materials Literature
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SOME CORROSION PROBLEMS OF ALLOY 690TT IN SPECIAL ENVIRONMENTS
In order to improve the reliability of PWR steam generators,alloy 690TT has been developed and verified as the optimum steam generators(SGs)tubing material at present,based on wide operating and laboratorial experience.Alloy 690TT is and will be one of most popular tube material of present and future commercial nuclea…
Study on the measurement of emulsion particles by using light extinction method
To investigate the effects of concentration and core-shell spherical particles on particle sizing in light extinction method,and based on Lambert-Beer Law,a series of experiments on emulsion particle sizing at different concentrations for PBA/PMMA core-shell particles are carried out by using multi-spectral light exti…
Effect of Strain Rate on Mechanical Properties of High Strength TRIP Steel
The mechanical properties of high strength TRIP steel were investigated at different strain rates(10-4～10-2 s-1).The results show that tensile strength and yield strength increase generally,while total elongation and product of strength and ductility decrease with the increase of strain rate.The higher the strain rate…
Effect of Negative Pulse Voltage on the Microstructure and Corrosion Resistance of Microarc Oxidation Film on A356 Aluminum Alloy
The effect of negative pulse voltage on the microstructure and corrosion resistance of microarc oxidation film on A356 aluminum alloy treated by double pulse microarc technique was investigated by SEM,coating thickness gauge etc.The results show that the negative pulse voltage by its electrode reaction greatly influen…
Study of the Corrosion Resistance of KH-560 Silane Film on Hot-dip Galvanzied Steels
Orthogonal experiment was used to study the passivation process on galvanized steel with silane.A KH-560 silane passivating treatment process was studied on galvanized steel.The electrochemical behavior of KH-560 silane film on galvanized steel in 5% NaCl solution was evaluated by polarization curves and electrochemic…
Study on mechanism of multi monomer melt grafting onto atactic polypropylene
The multi monomer of methyl methacrylate(MMA)/styrene(St) melt grafting onto atactic polypropylene(APP) was studied.The result showed that the addition of St to the melt-grafting system as a comonomer not only could greatly improve the degree of MMA graft onto APP and enhance the thermally stable of the melt-grafting…
Preparation and structure characterization of an asymmetric D-π-A styrene pyridinium thiocyanate salt
This research is mainly focused on the design and synthesis of organic—inorganic hybrid complex.The materials with optical nonlinear properties,including some pyridinium complexes,are briefly summarized.A new organic—inorganic hybrid coordination compound, containing the zinc ion,ambidentate thiocyanate(SCN—) ligand a…
Electrochemical Performance of Mn~(2+)/Mn~(3+) at Different Electrodes
The electrochemical performances of the Mn2+/Mn3+couple on the different electrodes are investigated by using of the cyclic voltammetry,electrochemical impedance spectroscopy and rotating disc electrode processes.The results show that the disproportionation reaction hardly occurs on the graphite electrode,however,the…
Influence of Instant Stream Inoculation on Microstructure and Section Sensitivity Of WD615 Cylinder Cap
The effects of instant stream inoculation process on the microstructure and section sensitivity of WD615 Cylinder Cap were investigated by optical microscopy and Brinell hardness tester.The results showed that graphite of type D and carbide in the thin wall of the Cylinder Cap were eliminated and type A flake shape gr…
Effect of Sensitization on Stress Corrosion Cracking of 304L Stainless Steel in NaOH Solutions at High Temperatures
Effect of sensitization on stress corrosion cracking(SCC) of 304L stainless steel in NaOH solutions with different concentrations at high temperatures was investigated by using slow strain rate tests(SSRT) and SEM technology.The results show that after sensitization,the resistance of the steel to SCC declined remarkab…
SYNTHESIS AND EVALUATION OF FUEL ANTI-STATIC ADDITIVE OF POLY SULFONES
A polysulfone,an anti-static additive for fuel,was synthesized with α-alkenes,maleic anhydride and sulfur dioxide as raw materials.The intrinsic viscosity of the polysulfone was determined by one point method and the structure of polysulfone was characterized by infrared spectroscopy.The results showed that when the d…
Au network deposited on the silicon nanoporous pillar array
By immersing silicon nanoporous pillar array(Si-NPA) in the AuCl3 solution for a period,Au was deposited on the Si-NPA substrate and Au network(Au/Si-NPA) formed on the substrate.The results show that the grain sizes of Au are 26.0 nm and 75.5 nm,respectively,before and after annealing the Au/Si-NPA in oxygen at 600 ℃…
Influence of isothermal transformation temperature on microstructure and mechanical properties of a TRIP steel containing Nb
The influence of isothermal transformation temperature on microstructure and mechanical properties of a cold rolled TRIP steel sheet with the composition of Fe-0.15C-1.46Si-1.56Mn-0.06Nb was investigated by mean of optical microscopy and X-ray diffraction.The results show that the optimum heat treatment process for th…
Microstructure and properties of (Ti,V)C steel bonded carbides synthesized by in situ sintering after heat treatment
(Ti,V)C steel bonded carbides were prepared by in situ sintering of mixture of titanium powder,ferrovanadium powder,graphite powder,molybdenum-iron powder,ferrochromium powder and iron powder in vacuum furnace.The microstructure and properties of(Ti,V)C steel bonded carbides after heat treatment were studied.The resul…
Practice of treating cadmium-containing dust produced by lead smelting in zinc smelting system
The cadmium of cadmium-containing dust was recovered in the zinc smelting system, which was produced by lead concentrate melting in oxygen bottom-blown furnace. The cadmium-containing dust was neutral-acid leaching together with dust from rotary kiln. The acid leaching slag was delivered to lead system to recovery lea…
Preparation of Liposome of Beta-Eudesmol by Supercritical Carbon Dioxide Precipitation and Measurement of its Physicochemical Properties
β-eudesmol was incorporated into liposome in order to improve its bioavailability and target delivery to hepatic cells. The liposome suspension of β-eudesmol was formed by supercritical carbon dioxide (SC-CO2) precipitation technology and was dried by vacuum freezing. The physicochemical properties of the freeze-dried…
High-Pressure Phase Transition Crystal Chemistry: I. Changes of Ionic Radius and Migration Behave in SiO_2 Phases Under High Pressure
Under the condition of high pressure,the cations of silicon in oxide or silicate minerals can occur migration phenomenon from low coordination number polyhedra to high coordination number polyhedra with increasing pressure.This migration is due to the change with radius ratio of cations to anions.Under high pressure t…
Role of β Phase Playing in Corrosion Process of Mg-Al Alloys in Atmosphere Polluted with NaCl
The atmospheric corrosion tests with the presence of contaminant particles of NaCl in laboratory simulation was conducted for three Mg-Al alloys with different volume fraction of β phase,then cross sectional morphologies of corrosion products,and the matrix after the remove of corrosion products were observed by SEM.I…
Dyeing and finishing of Rose fiber fabric
The Rose Fiber was cellulosic fiber modified by plant protein.Due to its poor alkali resistance,enzyme and souring agents were used in desizing and scouring.Because the Rose Fiber was yellowish,it may be bleached or whitened depending on dyed shade.Preshrinking and after treatment with NANO-PU polyurethane resin can i…