42results about How to "The structure is easy to control" patented technology

The invention discloses a template-based three-dimensional network carbon material/macromolecule functional composite and a preparation method thereof. According to the method, water-dispersed carbonmaterials, such as carbon black, carbon nanotubes and graphene oxides and hydroboron are taken as raw materials; trepanned sponge is taken as a three-dimensional template; the sponge with carbon material/hydroboron composites is obtained through an impregnation method, and is casted with or impregnated in different types of macromolecular materials after drying; finally, the three-dimensional network carbon material/macromolecule functional composite with the relative dielectric constant larger than 103 is obtained. The template-based three-dimensional network carbon material/macromolecule functional composite is widely applied to the fields such as dielectric energy storage materials, electromagnetic shielding, elastic conductors, piezoresistance materials and flexible electronic devices.The preparation method has the advantages of simple process, low cost, high efficiency and the like.

The invention relates to a method for in-situ synthesis of a carbon coated-hydrated V3O7 nanobelt and a lithium ion battery, and discloses a method for in-situ synthesis of the carbon coated-hydrated V3O7 nanobelt. The method comprises the following steps of respectively heating reaction raw materials to a certain temperature by a high-temperature hybrid hydrothermal method, mixing the reaction raw materials, cooling the reaction raw materials to a room temperature after completion of the hydrothermal reaction, and carrying out heat preservation and drying processing to obtain the in-situ carbon coated V3O7H2O (V3O7H2O@C) nanobelt. The in-situ synthesis of the carbon coated-hydrated V3O7H2O nanobelt with high crystallinity and high structural strength is achieved by the novel high-temperature hybrid hydrothermal method; the material obtained through preparation can be used for an electrode material of the lithium ion battery; and moreover, the carbon coated-hydrated V3O7H2O nanobelt is endowed with very excellent electrochemical performance and can be applied to the field of the lithium ion battery.

The invention discloses a polypeptide molecule including: (a) an amino sequence of the polypeptide molecule, wherein the amino sequence is represented as the SEQ ID No.1; and (b) a polypeptide molecule which is derived from (a) and has same biological functions of the polypeptide molecule (a), wherein the polypeptide molecule (b) is obtained since one or more amino acids are deleted, inserted or replaced in the polypeptide molecule limited in (a). A molecular weight of the polypeptide molecule is 2289.91 g/mol and an isoelectric point of the polypeptide molecule is 11.1. The polypeptide molecule can be applied for preparing materials which is anti-bacterial and can promote growth of osteoblast. The invention provides the polypeptide molecule which can be compounded with other compounds simply, can be applied in materials in various types and has effects of promoting growth of the osteoblast and being anti-bacterial. The polypeptide molecule is free of toxic and harmful effect on human body. The polypeptide molecule is simpler in synthetic method compared with a large-molecular polypeptide and can be industrially produced.

The invention relates to a preparation method of a metal nano-network flexible panel for electronic information display. The method includes the following steps that a SiO2 thin film is prepared on asilicon slice as a sacrificial layer; a GZO thin film, an AZO thin film or a ZnO thin film are prepared on the sacrificial layer as a covering layer; diluted HNO3 is dropped on the covering layer, thecovering layer is corroded to obtain cracks between particles; then HF is dropped to corrode the SiO2 thin film under the cracks between the particles; an Ag metal thin film is produced by sputtering; the GZO thin film is removed by HCI immersion, HF immersion is carried out to remove the SiO2 thin film to obtain a metal Ag nano-network; the metal Ag nano-network is transferred to a PET flexibletransparent substrate coated with EVA optical cement to obtain a metal Ag nano-network transparent conductive flexible panel. The preparation method has the advantages that on the basis of preparing the large-particle GZO thin film, AZO thin film or ZnO thin film, combined with magnetron sputtering and wet etching, the metal nano-network transparent conductive flexible panel is obtained, wherein the metal nano-network structure is easy to regulate and the manufacture is simple and convenient.

The invention relates to a processing method of metal nanonetwork flexible glass. The processing method comprises the following steps of preparing a SiO2 film on a silicon wafer as a sacrificial layer; preparing a GZO film, an AZO film or a ZnO film on the sacrificial layer as a cover layer; adding dropwise dilute HNO3 on the cover layer so as to erode the cover layer, so that intergranular cracksare obtained; then adding dropwise HF so as to erode the SiO2 film under the intergranular cracks; sputtering and growing an Ag metal film; soaking in HCl so as to remove the GZO film from the coverlayer; soaking in HF so as to remove the SiO2 film, so that a metal Ag nanonetwork is obtained; and transferring to a PET flexible transparent substrate coated with EVA optical cement, so that the metal nanonetwork transparent conductive glass is obtained. The processing method has the advantages that on the basis of the large-particle GZO film, the AZO film or the ZnO film which is developed andobtained, magnetron sputtering and wet etching are combined, so that the metal nanonetwork transparent conductive glass which has the advantages of easiness in adjusting and controlling the metal nanonetwork structure and simplicity and convenience in manufacturing is obtained.

The invention belongs to the organic chemical field, and discloses a chloroquinoxaline compound, a structural general formula of the conjugated polymer is shown as I. The compound introduces a fluorine atom with a strong electrosorption characteristic on quinoxaline, thereby the HOMO energy level of the material can be effectively reduced, and the open-circuit voltage of a polymer photovoltaic cell can be enhanced. By using cyclic voltammetry determination of the HOMO energy of the compound, compared with a non-chloroquinoxaline derivative, the HOMO energy level of a single fluoropolymer is lower by 0.02-0.15eV than that of the non-chloroquinoxaline, and the HOMO energy level of the double fluoro polymer is lower by 0.05-0.3eV than that of the non-chloroquinoxaline. The compound can be taken as an intermediate of a polymer photovoltaic material for preparing the polymer photoactivity material with excellent performance. By using cyclic voltammetry determination of the HOMO energy of the compound A-I, compared with the non-chloroquinoxaline derivative, the HOMO energy level of the single fluoropolymer is lower by 0.02-0.15eV than that of the non-chloroquinoxaline, and the HOMO energy level of the double fluoro polymer is lower by 0.05-0.3eV than that of the non-chloroquinoxaline.

The invention discloses a preparation method and system of a membrane material. The preparation method of the membrane material comprises the steps of rotating a rotating body, enabling a selected area on the surface of the rotating body to be in contact with a film-forming solution when the selected area rotates to a first position, enabling the film-forming solution to be attached to the selected area to form a liquid membrane, and enabling the liquid membrane to form a membrane material as it continues to rotate with the selected area from the first position to the second position. The controllable preparation of various membrane materials can be realized, the thickness, the area, the components, the structure and the like of the membrane materials are easy to regulate and control, the membrane preparation efficiency is high, and the obtained membrane material is good in quality, low in cost and suitable for the requirement of large-scale production, and particularly has important application value in the field of preparation of high-quality, high-performance or special-performance membranes.

The invention relates to the technical field of biology and particularly discloses a novel intestinal mucosa anti-oxidation active peptide and a preparation method thereof. Amino acid sequences of theanti-oxidation active peptide are shown as Asp-Gly-Leu-Lys-His-Leu-Asp-Asn-Leu-Lys and Asn-Asp-Trp-Glu-Asp-His-Leu-Ala-Val-Lys. The anti-oxidation active peptide is derived from intestinal mucosa protein. The peptide has more hydrophobic amino acids and strong anti-oxidation activity and is strong in DPPH free radical scavenging action and high in reducing power. The preparation method of the peptide has advantages of simplicity, easiness in large-scale production and the like. The novel intestinal mucosa anti-oxidation active peptide and the preparation method thereof have significant socialbenefits, economical benefits or ecological benefits in increasing of industrial added values of natural casings, abatement of environmental pollution and promotion of comprehensive utilization of casing processing byproduct resources.

The invention relates to a near-infrared light stimulation response type functional macromolecule, an intelligent nanometer material and a preparation method of the intelligent nanometer material, belonging to a photo-thermal macromolecule, two synthesis methods and the preparation method of the nanometer material taking the photo-thermal macromolecule as a raw material. A piperidine-thiophene-croconic acid-thiophene-piperidine conjugated element is used as a main component, and a plurality of groups are used for modifying the photo-thermal macromolecule, so the overall properties of the macromolecule are regulated and controlled. A solvent replacement method and a self-nucleation method are adopted, and different solvent systems and temperatures are controlled, so various novel photo-thermal nanometer materials with various morphologies such as a spherical shape, a fibrous shape and a sheet shape are prepared. Structural parameters such as morphology, size and the like of the nanometer material can be effectively regulated and controlled through different photo-thermal macromolecule substituent elements, and the nanometer material has good biocompatibility and excellent photo-thermal performance. In the future, the nanometer material is expected to be applied to photothermal therapy, photodynamic therapy, photoacoustic imaging and the like in the field of biomedicine, and haspotential application value.

The invention relates to a preparation method of a titanium dioxide and titanium carbide loaded carbon fiber composite catalytic functional material. The preparation method comprises the following steps: (1) with carbon fibers (CFs) as a carbon raw material, carrying out degumming treatment on the carbon fibers by using a Soxhlet extraction method to obtain single dispersed fibers; (2) with titanium hydride as a titanium raw material, allowing porous titanium carbide to grow on the surface of the carbon fibers through a molten salt method; (3) partially converting titanium carbide grown on thesurface of the carbon fibers into sodium titanate by using a sodium hydroxide hydrothermal method; and (4) carrying out acid treatment and heat treatment to obtain the CFs-coated TiC/TiO2 composite catalytic functional material. The preparation method is simple in process, a material structure is easy to control, and the prepared composite material is excellent in performance and convenient for industrial production and application.

The invention relates to a preparation method of a three-dimensional graphene-based foam material, which comprises the steps of stripping graphite to obtain graphite oxide with an improved Hummers method, taking graphite oxide with dispersed furfuryl alcohol as a carbon source and a high polymer foam material as a template, obtaining a high polymer foam material obtaining graphite oxide with a simple impregnation method, and obtaining the three-dimensional graphene-based foam material by heat treatment of high polymer foam under an anaerobic condition. The three-dimensional graphene-based foam material prepared by the method is provided with a graphene-based foam macro body in a three-dimensional continuous structure; the method is easy and simple to operate, and high in productivity; a foam structure is easy to adjust and control; the prepared three-dimensional graphene-based foam material has the advantages of high electroconductivity, large specific surface area, lipophilicity, hydrophobicity and the like; and a foundation is laid for the application of the three-dimensional graphene-based foam material in the fields of heat-conducting composites, catalytical materials, energy storage materials, phase separation materials, adsorbing materials and the like.