44results about How to "Good three-dimensional structure" patented technology

The invention provides a method for preparing a mercury removing agent from a waste methanol catalyst. The method comprises the following steps: (1) crushing the waste methanol catalyst and mixing the crushed catalyst with a binder, extruding the mixture into strips, drying and calcining at 350-500 DEG C for 1-8 hours to obtain a mercury removing agent precursor; and (2) putting the mercury removing agent precursor into contact with sulfur-containing waste gas for sulfidizing treatment, and drying to obtain the mercury removing agent. According to the method for preparing the mercury removing agent from the waste methanol catalyst, as the waste methanol catalyst is taken as the raw material, resources can be saved, the cost can be reduced, and aluminum in the waste methanol catalyst also can be kept functioning in binding and enhancing adsorption in the final product mercury removing agent; the existing aluminum also serves as a carrier and has an excellent dispersion effect on the CuS active component; as a result, the mercury removal performance can be improved and the mercury removing agent is enabled to have relatively high mercury capacity.

The invention relates to a preparation method of a heterogeneous acellular dermal matrix. Fresh salted pigskin is used as a raw material, and the method of combining physics, chemistry and biochemistry is used to degrease, alkali-swell, eliminate alkali-swell and treat with keratinase , secondary enzyme treatment and a series of treatments to prepare a heterogeneous (pig) acellular dermal matrix with excellent performance and wide application. The method adopts keratinase treatment and secondary enzyme treatment, and the method has the advantages of less environmental pollution and the heterogeneous (pig) acellular dermal matrix treated by the method has a complete three-dimensional structure of collagen, good water vapor permeability, high porosity, The material has excellent mechanical properties and can be widely used in the fields of burns and plastic surgery.

The invention discloses a water-absorption flame-retardant sponge and a production method, which is characterized in that the sponge comprises the following raw materials by weight: 95-110 parts of propylene glycol block polyether, 48-55 parts of toluene diisocynate, 8-10 parts of polyacrylamide, 5-6 parts of antimonous oxide, 0.5-0.75 parts of triethylamine, 3-4 parts of dichloroethane, 3.5-5.5 parts of zinc oxide, 4.0-5.0 parts of glycerol, 0.5-0.7 parts of antioxidant 168, 0.3-0.8 parts of dibutyl tin diacetate, 0.3-0.5 parts of sodium laurylsulfate, 4-5 parts of modifier and 6.5-9.5 parts of water. The sponge has excellent flame retardant performance, water absorption performance, mould resistance and air purification, nano calcium carbonate in the raw materials has a three-dimensional structure, and has good dispersibility, can enhance the hardness of the sponge, and antimonous oxide has good flame retardant effect.

The invention discloses a preparation method of a supported ammonium perchlorate / graphene oxide 3D (Three-Dimensional) energetic material. The preparation method comprises the following steps: step one, preparing graphene oxide, and carrying out high-strength ultrasonic treatment, thus preparing a graphene oxide water solution in uniform dispersion; step two, dissolving ammonium perchlorate crystals in the graphene oxide water solution, and putting and completely freezing the mixed solution in a low-temperature environment; step three, removing water in a mixture by utilizing a freeze-drying method, and reserving a 3D structure of ammonium perchlorate / graphene oxide. According to the preparation method of the supported ammonium perchlorate / graphene oxide 3D energetic material, disclosed bythe invention, the cost is low, the safety is high, all components of the supported ammonium perchlorate / graphene oxide 3D energetic material are uniform in distribution, residual impurities or reactants cannot be generated, and a rate of finished products is high; the formed 3D structure is well kept, heat transfer during a thermal decomposition process is increased, efficient and continuous occurrence of catalytic reaction is ensured, and the burning rate of a propellant can be remarkably increased.

The invention relates to an organic dye, a preparation method thereof and a sensitized solar cell containing the organic dye, belonging to the technical field of dye-sensitized solar cells. The organic dye has the following structure, wherein R1, R2 are independently selected from any one of H, C1~C18 alkyl, and C1~C18 alkoxy; R3, R4 are independently selected from H, C1~C18 alkyl, C1 Any one of ~C18 alkylphenyl, C1~C18 alkoxyphenyl; R5, R6 are independently selected from H, F, C1~C18 alkyl, C1~C18 alkylphenyl, C1~C18 alkoxy Any one of phenyl groups; x, y are 0 or 1. The dye of the present invention has a twisted electron skeleton, and at the same time combines side modifying groups to make it have a better three-dimensional structure. The sensitized solar cell prepared by the dye has higher voltage and can be used as a co-sensitizer in combination with other high-efficiency dyes to prepare a device with excellent performance and good photothermal stability. The preparation method of the organic dye has rich sources of raw materials, low cost, good photothermal stability of the prepared device, and bright prospect of industrial production.

The invention discloses a nicotine load slow-releasing agent and a preparation method and application thereof. The nicotine load slow-releasing agent is mainly prepared from effective components in percentage by weight: 0.488% of zirconium salt, 99.164% of acidamide and 0.347% of organic carboxylic acid. The zirconium salt, the acidamide and the organic carboxylic acid are utilized to form metal-organic frameworks (MOFs), thus the slow-releasing agent has a three-dimensional structure, has the large specific surface area, a large pore passage gap and an obvious pore structure, and has good compatibility with tobacco, aroma of the tobacco is not affected, and the nicotine load slow-releasing agent is non toxic and harmless, has no peculiar smell and has good thermal stability.