Showing papers on "Amorphism published in 2012"
Patent•
4 Jul 2012
TL;DR: In this paper, the authors presented a method for preparing an electromagnetic shielding composite material with a ferrum-based amorphism/nanocrystalline strip serving as a patch layer.
Abstract: Provided is a method for preparing an electromagnetic shielding composite material with a ferrum-based amorphism/nanocrystalline strip serving as a patch layer. The method comprises processing steps of (1) plasticating isobutylene-isoprene rubber (IIR) on an open type rubber refining machine for 3-10 minutes, then adding rubber compounding agents (known technology) with fixed types and proportion, mixing for about 15-60 minutes to enable a compound phase to be evenly dispersed in the IIR, mixing plastication rubber with white carbon black with proportion of 4:1-6:1 by mass, and producing an IIR film with thickness of 0.1-1mm; (2) compounding carbon fibers with the IIR film to produce an IIR film/carbon fiber/ IIR film interlayer structure, and sulfide forming in a pressure forming machine with sulfide temperature at 165 DEG C, sulfide time for 1-5 hours and sulfide pressure at 1-10 MPa; and (3) selecting ferrum-based amorphism/nanocrystalline alloy strips under unannealed conditions and with different thicknesses to produce the surface conductive type electromagnetic shielding composite. The method has the advantages that (1) by means of recycle of waste strips, the processing problem of the waste strips can be effectively solved so that the method has high economic benefits and environmental benefits; and (2) the preparation process of the method is simple in process, low in equipment requirement, remarkable in effect and favorable for achieving large-scale industrialized application.
3 citations
TL;DR: In this paper, the dissolution rate of daidzein (DZ) by solid dispersions was improved by adding poloxamer into the solid dispersion, with PVP K30 and surfactant as carriers.
Abstract: The purpose of this study was to enhance the dissolution rate of daidzein (DZ) by solid dispersions. DZ solid dispersion was prepared by solvent method, with PVP K30 and surfactant as carriers. The influences of drug-carrier proportion, the kind of surfactant and the amount of surfactant on the dissolution of DZ were examined. Solid dispersions were characterized by infrared spectroscopy (IR), X-ray diffraction spectroscopy, and dissolution tests. When appropriate amount of poloxamer was added into the solid dispersion, the dissolution of DZ could be improved obviously. The data of IR showed that the absence of well-defined drug-polymer interactions. The data of X-ray diffraction showed that the drug might exist in the form of amorphism or molecule in solid dispersions. Both the binary and ternary solid dispersions enhanced the dissolution of DZ. Moreover, poloxamer played an important positive role in improving the dissolution rate of DZ in the solid dispersion.
1 citations
TL;DR: SiOC films made by the inductive coupled CVD with dimethyldimethoxysilane were analyzed to find out the correlation between the chemical and optical properties by using the Foruier transform infrared spectroscopy, spectrophotometer and ellipsometer as discussed by the authors.
Abstract: SiOC films made by the inductive coupled CVD with dimethyldimethoxysilane were analyzed to find out the correlation between the chemical and optical properties by using the Foruier transform infrared spectroscopy, spectrophotometer and ellipsometer. The bonding structure of SiOC film was formed during the depositeion and the adhesion was increased after annealing process. SiOC film decreased the polarization by the chemical reaction between alkyl group and hydroxyl group, and increased the degree of amorphism. For the range of 950 cm-1 in FTIR spectra, the spectra were divided into two types depending on polar sites. The refractive index of SiOC film with the lowest polarization increased and the thickness of that decreased.
1 Jul 2012
TL;DR: In this article, the optical properties of AZO thin films prepared by the RF mangnetron sputtering system were studied to research the dependance of chemical properties of substrate, and the ultra violet emission with high intensity was spontaneously induced in the AZO film growed on SiOC film with high degree of amorphism.
Abstract: The optical properties of AZO thin films prepared by the RF mangnetron sputtering system was studied to research the dependance of chemical properties of substrate. The substrate was the SiOC film deposited by Inductively coupled plasma chemical vapor deposition with various gas flow rate of and Ar (DMDMOS). In accordance with the increase of Ar gas flow rates, the Si-O bond in the SiOC film increased and then progressed the amorphism. The roughness of AZO grown on SiOC film with high degree of amorphism decreased and then improved the flatness of surfaces. Moreover, the ultra violet emission with high intensity was spontaneously induced in the AZO film growed on SiOC film with high degree of amorphism.