Advanced Materials Research Vol. 531

Abstract: Use the keratin liquid which solved from wool with urea and 2-mercaptoethanol to prepare wool keratin porous membrane at different concentration and frozen temperature. Observe the morphological structure of the membrane by SEM and analyze the SEM pictures. The experimental results indicate that the liquid concentration and frozen temperature are inversely proportional to the porous membrane aperture and porosity, but proportional to the porous membrane density.

Abstract: We developed a calcium phosphate cement that could be molded into any desired shape due to its chewing-gum-like consistency after mixing. The powder component of the cement consists of tricalcium phosphate (TCP). The liquid component consists of chitosan, citric acid and glucose solution. In this study, we used four groups of cement to investigate the mechanical properties and biocompatibility of the new biomaterial in vivo. The setting times of the cements were 5-30 min. X-ray diffraction analysis showed that the products were hydroxyapatite (HA) and dicalcium phosphate anhydrous. When the concentration of citric acid was increased, the compressive strength of specimen increased. The animal experiments showed that the material was nontoxic and osteoinductivity.

Abstract: The effects of after-annealed temperature on the microstructure, optical and electrical properties of solution processed amorphous indium gallium zinc oxide (a-IGZO) thin films were investigated in this article. The X-ray diffraction results confirmed that all the films were an amorphous structure. A transmittance of more than 90% in the visible wavelength region was obtained. the a-IGZO thin films reached the lowest electrical resistivity of 9.44×10⁴Ω•cm with the after-annealed temperature of 300°C.

Abstract: A series of laboratory experiments on the change characteristic of BET surface area and pore size of alkaline residue(Huaian) under different temperatures were carried, the experimental procedure and results are described and analyzed in this study. The BET surface area of alkaline residue decrease obviously with temperature increasing, and the decresing tendency is slowly after 600°C. The experiment resluts show that 600°C is a threshold of alkaline residue BET surface area change. Pore size slowly increases with temperature rising. In the experimental study, alkaline residue surface morphology is researched by SEM under different temperature, SEM images showed that alkaline residue is porous polymeric aggregate in natural conditon, there is an improtant influence of thermal treatment on alkaline residue surface morphology. The porous aggregate is more compact, and its pore gradually increses with temperature rising.

Abstract: BASF successfully developed a kind of paint ColorPro Integrated Process II. By the judgment of its use conditions and the associated test, its appearance and performance can meet the requirements of coating. With advantages in energy saving, emission reduction, saving and other aspects of performance will lead to coating the progress of energy saving work.

Abstract: ZAO nanorod arrays with high preferential c-axis orientation and excellent photovoltaic performance were prepared in order to apply it extensively. Aluminum- doped zinc oxide thin films were deposited on glass substrates by sol-gel method.And then by controlling processing parameters such as the amount of doped aluminum and stability, etc.well-aligned Al-doped ZnO nanorod arrays with a narrow diameter distribution were successfully grown on substrates by hydrothermal method, where the substrates were spin-coated with seed layer.The experiments show that the 2% aluminum-doped and diameter of about 50nm of ZAO thin film nanorod arrays has the best performance photoluminescence and surfactants can promote the growth of ZAO rod-like nano-structures and contribute to the formation of ZAO nanorod arrays with highly oriented nanorod arrays.

Abstract: It is well known that the Born approximation technique is highly effective under weak scattering conditions. In the paper, a cement paste cylindrical specimen with complex flaw is prepared and ultrasonic measurements are carried out by experimental means. The measurement area is restricted in the plane perpendicular to the axis of cylindrical specimen. The measured wave data are fed into the approximate technique formula—the inversion method and cross-sectional image is obtained. We find that good results have been obtained for strong scattering void flaws such as complex flaw in cement paste cylindrical specimen

Abstract: As titanium source tetrebutyl titanate modified by reflux preparation, the clean solution containing the nano-TiO₂ had been prepared by hydrothermal synthesis method. Then the solution was added to the chloroform solution which containing the poly (hydroxybutyrate-co-valerate) (PHBV), and the loading nano-TiO₂ modified PHBV film was prepared by solution casting processes. X-ray diffraction (XRD) and UV-visible transmission spectra (UV-vis) were used to characterized; in the photocatalytic experiment, 10 ml 5 mg/L methyl orange solution with the 10 mg catalyst, the fade rate reached 90% after 120 min. The thin film obtained in this method has characteristics of high transmittance, high photocatalytic activity, recycling, non-toxic and the loading nano-TiO₂ of uniform dispersion.

Abstract: Different ZnCo2O4 micro-materials had been synthesized using surfactant (CTAB) in the solution of mixed solvents. Using CTAB as morphology-controlling agent, different morphologies of ZnCo2O4 are obtained successfully. The concentration of the reactants and the dosage of CTAB had significant effects on the morphology of the products. The morphologies of micro-cubes, micro-plates, and micro-particles were efficiently obtained, respectively, with careful control of the fundamental experimental parameters including the concentration of the reactants and the dosage of CTAB. X-ray powder diffraction (XRD) and scanning electron microscopy (SEM) were used to characterize these products.

Abstract: Hydrothermal reactions of biphenyl-3,3'-dicarboxylate acid (H2bpda) with Manganese(II) chloride gave rise to one new coordination polymer, namely, [Mn(bpda)]n. It was characterized by elemental analysis and single - crystal X - ray diffraction methods. This compound has one Mn metal center and shows a 3D uninterpenetrating framework