Advanced Materials Research Vols. 791-793

Abstract: The micro-morphology and metal elements composition of Inhalable particles (PM₁₀) in Huaian typical zone were studied in this paper using scanning electronic microscopy (SEM) and inductively coupled plasma-atomic emission spectrometry (ICP-AES). PM₁₀ samples were collected for 24 h using high-volume air sampler from Qinghe zone. The SEM analysis showed that mineral particles with regular shapes were popular in PM₁₀ in Qinghe district. The composition of metal elements analysis showed that enrichment factor of Cr, Ni, Cu, Zn, Pb, Cd, As of are greater than 10, the results indicate that these elements mainly come from anthropogenic pollution. PM₁₀ in Huaian typical zone was more sourced from industrial pollution than other sources.

Abstract: Xinbei Oilfield in Jilin is a tectonic lithology reservoir with high porosity, high permeability, thin oil layers and severe heterogeneity, which has entered a period of high water-cut development. Aiming at actual demand of field development, making use of indoor apparatus monitoring and theoretical analysis method, the author evaluated the viscosity, interfacial tension, absorption characteristics, rheological property, viscoelasticity and displacement efficiency of 5 different binary composite systems composed of surfactants and polymer to optimize the binary flooding system. The results show that Daqing Lianhua/Polymer system can achieve ultra-low interfacial tension with crude oil with small absorption, well stability and little effect on viscoelasticity of polymer solution. The system has higher displacement efficiency and stronger mobility control ability, which is recommend as flooding system for oilfield.

Abstract: The antibacterial agent (LZB-GC) was added to composite resin materials with varied ratio (0.5%, 1%, 1.5%, and 2%) by mechanical and ultrasonic methods. The effects of different contents of the antibacterial agent on the mechanical and fibration properties of the composite resin were measured. The results showed 1.5% group acquired the best flexural strength, and the surface hardness decreased while the friction coefficient increased with improving the antibacterial agent content.

Abstract: In order to obtain hydroxyapatite nanoparticles smaller particle size distribution is relatively uniform, spherical shape and the particle sample, by exploring the reaction temperature, reaction time, concentration and pH on hydroxyapatite nanosize and distribution impact conditions, the results show that when the reaction temperature is 50°C; reaction time 2h; concentration 0.6mol/L; pH value of 10, the prepared nanohydroxyapatite regular shape, less agglomeration, uniform size high crystallinity. Description concentration and pH on nanoparticle size has a significant impact.

Abstract: Colorless fluorescent ink has certain anti-counterfeiting function. In this paper, fluorescence curve and spectral properties of the fluorescent ink with colors of fluorescent red, fluorescent blue and fluorescent green used for screen printing are tested. Besides, rheological properties of fluorescent inks such as viscosity and thixotropic behavior are shown in the paper.

Abstract: The catalytic combustion of methane over a single pellet catalyst of different structures was modeled by two-dimensional numerical simulations. The same boundary conditions as wall as methods were selected to compare the properties of combustion in the catalysts and the combustion efficiency of the gas flow. The results indicate that the egg-shell type of catalyst is suitable for fast combustion and it can improve the efficiency of utilizing catalyst especially for noble metal catalyst. For situations where the active section of the catalyst is prone to be poisoned or where the lost of catalyst weight will happen, the egg-white or egg-yolk type is recommended for the reason that it can protect the catalyst from deactivation and the decrease of combustion efficiency is not significant. In additional, the model and the method presented can support the design and choose of the catalyst for different fuels.

Abstract: Advancing front model, carrier-facilitated transfer model and reversible reaction model were applied to simulate extracting chromium (Ш) from wastewater by emulsion liquid membrane using di-(2-ethylhexyl) phosphoric acid as carrier and Span-80 as surfactant. Parameters of the mathematic models were gained from the designed experiments, and the reversible reaction model can be used with a reasonably accuracy as estimates of chromium (Ш) permeation. The experimental results demonstrate that the role of reversibility of the chemical reaction between internal phase and membrane phase should be considered, and the diffusion resistance is the primary resistance of the mass transfer process.

Abstract: CFRP cloth strengthening concrete column is divided into constrained and unconstrained District area by the reasonable arch axis theory, then we obtain the effective confinement factor of reinforced columns, base on lateral stress formula of scholar XIAO Y and concrete compressive strength model of Karbhari, V. M, derive from the increasing coefficient of carrying capacity, according to the effective confinement factor and the increasing coefficient of carrying capacity, finally we obtain the bearing capacity formula of the modified compression column strengthened with CFRP sheets.

Abstract: The core-shell acrylic resin emulsion is prepared by seed polymerization technology, with styrene, methyl methacrylate, acrylonitrile as monomer, butyl acrylate, methyl methacrylate, acrylic acid as shell monomer, and the of nanoTiO₂ is introducted in shell emulsion. Infrared spectroscopy were used to characterize the structure of the prepared coating agent. The preparation of TiO₂/acrylic resin emulsion for leather finishing agent, and discusses its influence on the leather properties. The results show that the synthetic finishing agents for dyeing after the fatliquoring leather finishing, good finishing effect can be obtained.

Abstract: This paper confirmed the calculation model of improved multi-ribbed slab structure and the stress relationship among three seismic fortification lines, offered the possibility of distributing earthquake action reasonably, provided the basis for optimal design. Comparing the similarities and differences between the improved multi-ribbed slab structure and energy-consumption braced frame; characteristic parameters of restoring force in the third seismic fortification line, outer frame, would be got by design and be adjusted. This paper analyzed the third seismic fortification line by numerical simulation and example analysis, the variation range of performance of the third seismic fortification line is got, this range can be adjusted by changing the influencing factors of three seismic fortification lines. The reasonable destruction mode of three seismic fortification lines could be achieved, namely the control design of three seismic fortification lines could be achieved.