32results about How to "The preparation process is simple and fast" patented technology

The invention relates to the preparation of synergistic flame retardant nanometer zinc borate. A halogen-free flame retardant is characterized by having a good flame retardant effect and not generating toxic gas in combustion; and a nanometer zinc borate particle is an inorganic synergistic flame retardant, has the advantages of good heat stability, small granularity, small specific gravity, easiness in dispersing, non-toxicity and the like, and has excellent synergisti effects when being used as flame-retarding additives for plastic, rubber, chemical industry and other organic macromolecule composite materials. The invention relates to a preparation method of nanometer zinc borate, and the method has the advantages of simplicity in operation, low cost, single products, high yield and uniform particle size distribution, and does not generate innoxious products in a reaction process and the like. The optimal conditions obtained by the experiment is that the mixing ratio of zinc salt to borax is 0.1-12:1, the reaction temperature is 50-90 DEG C, and the dripping rate is controlled within 100-200 ml/h. The technical method has the advantages of simple technology, short reaction period, and high utilization ratio of raw materials.

The invention relates to the fields of drug residue monitoring and analyzing technology and new materials, in particular to an MIP-SPME (molecularly imprinted polymer-solid phase microextraction) fiber for selectively identifying and measuring triazole pesticides, an extraction platform and an application. The MIP-SPME fiber comprises a substrate material and a tebuconazole-MIP coating located on the surface of the substrate material, wherein the substrate material is a metal material, and the tebuconazole-MIP coating is immobilized on the surface of the substrate material in a mode of electrochemical polymerization. The SPME coating prepared with the in-situ electrochemical polymerization method has the characteristics of controllable film thickness and homogeneity of preparation; a metal Pt wire is adopted as the substrate material, so that the defect that a quartz fiber is easy to break is overcome; meanwhile, with the introduction of the molecular imprinting technology, the target selectivity of the SPME is greatly improved.

The invention relates to a mitoxantrone targeting sustained-release long-circulating nanometer liposome and a preparation method. The particle diameter of the liposome is between 90nm and 120nm, the particle diameter is uniform, and the surface is rich in folic acid. The ratio of the compositions of the raw materials is as follows: the mass part ratio of PEG-modified O-quaternized carboxymethyl chitosan tofolic acid-modified O-quaternized carboxymethyl chitosan: O-quaternized carboxymethyl chitosan to mitoxantrone is 1:1-2:2-4:0.5-1; and the mass ratio of O-quaternized carboxymethyl chitosan to cholesterol is 4-2:1. The inverse emulsion polymerization or film dispersion method is used to prepare the liposome, and the whole preparation process is simple and quick, the preparation period is short, the entrapment efficiency of the prepared polymer liposome for drugs is more than 90% and the drug loading rate is up to 9.0%; and through the modification of surface PEG, the polymer liposome is not easy to be captured by the reticuloendothelial system of human body, the in vivo circulation time is prolonged, and simultaneously the bioavailability and biocompatibility of the polymer liposome are increased.

It is described an auxiliary structure (240, 440, 540) for treatment of at least one tooth (123) of an upper jaw (100) and/or lower jaw (120), the auxiliary structure comprising: a body (241), in particular comprising a plastic material; the body having a lower surface (233) and an upper surface (235), which are defined based on a lower border (665, 765) of a lower volume (666) occupied by lower teeth of the lower jaw in a bite state and an upper border of an upper volume occupied by upper teeth of the upper jaw in the bite state, wherein the lower surface (233) and/or the upper surface (235) comprises at least one recess (257) with respect to the lower border and/or the upper border, respectively, and/or a common annular edge (247, 251, 253, 255) limiting a through hole (249, 252, 254, 256) through the body (241).

The invention relates to a notebook and a making method thereof. The notebook comprises a notebook shell and a notebook body fixedly installed in the notebook shell, wherein the notebook shell comprises a paperboard, outer-layer paper is pasted on the outer surface of the paperboard, inner-layer paper is pasted on the inner surface of the paperboard, and each outer circumferential end face of the paperboard is provided with a protective layer. The invention provides the notebook and the making method thereof, due to the adoption of hard double-face grey paper as the notebook shell, the notebook has low cost, and because the inner-layer paper and the outer-layer paper are pasted on the paperboard of the notebook shell and each end face of the notebook shell is provided with a coating or end-face paper, the attractive appearance of the notebook is strengthened, and the notebook has durability; and by adopting the making method, the planar paper pasting or paint spraying is uniformly carried out on the paperboard of the notebook shell in the process of making the notebook shell so that the making method has simple and rapid making process and effectively reduces the production cost, and the made notebook has the advantages of durability and attractive appearance.

The invention relates to an industrial super-convenient superhydrophobic finish-coat paint which is prepared from the following components: tetraethyl orthosilicate, ethanol, water, hexadecyl trimethoxy silane, and two or more than two of nanoscale colloidal silica dispersions with different sizes. The nanoscale colloidal silica dispersions with different sizes are mixtures of a nano colloidal silica aqueous dispersion R301 and a nano colloidal silica aqueous dispersion R1050 with the weight ratio of 8:2 to 3:7. The shortcomings of a conventional superhydrophobic finish-coat paint has rigor reaction, complex process and long time are overcome, and the finish-coat paint provided by the invention maintains extremely high hydrophobicity, can be industrialized, and is simple and convenient in process.

The invention discloses a nanometer environmental protection chemical coat-plating solution which can be prepared quickly and an application method thereof, pertaining to the technology filed of nanometer chemical coat-plating new materials. Curing agent multifunctional MDI, main agent epoxy resin solution and nanometer functional addition agent are mixed according to ratio and well stirred, thus quickly obtaining the chemical coat-plating solution. The chemical coat-plating solution can be produced into coat-plating solution of various colors by adding various pigments into the basal coat-plating solution and fully meets the requirement of anticorrosion and decoration towards the surface of various metallic materials or non-metallic materials. The production technology of the solution is simple and quick, overcomes complex reaction and polymerization steps in the traditional production of chemical coat-plating solution and has low cost compared with the traditional coat-plating technology which is widely applied in China at present. The coating does not foam and fall off, has good corrosion resistance and antiseptic effect, can maintain stable for a long period under the temperature of 200-300 DEG C, thereby the nanometer environmental protection coat-plating solution is well worthy of popularization and application. The chemical coat-plating solution can be applied to vehicles, electromechanics, buildings, power, chemical industry, ocean engineering, domestic appliances, railway, bridges, ship industry, civil living, etc.

The invention discloses a special plate making method for anti-copying. The special plate making method for anti-copying comprises the following steps of (1), graphic and text processing, (2), pre-printing network line adjusting, (3), graphics and text merging, (4), plate making, and (5), printing on a copier; anti-copy paper is prepared by mainly using the Kodak Printing Energy Jet pre-printing software, different network lines are added onto the normal appearance graphics and anti-counterfeiting shading in pre-printing network line adjusting, and then merged into the same page, so that a prepared PS board reflects various network line formats in the same printing surface; and the prepared PS is put on a machine for printing to paint the special printing ink (special blue ink), the prepared anti-copy paper can make the normal appearance graphics and text appear after copying of a copier, meanwhile, dimly visible shading can be eliminated before the original copying, and the effect ofanti-copying is achieved. The anti-copy paper prepared by the special plate making method can be used in the technical field of print anti-counterfeiting technologies, and the special plate making method has the remarkable advantages of being simple in anti-counterfeiting method, low in preparation cost and convenient to prepare through the ability to prevent copying and verify the authenticity.

An insulated gate power semiconductor device includes an (n−) doped drift layer between an emitter side and a collector side. A p doped protection pillow covers a trench bottom of a trench gate electrode. An n doped enhancement layer having a maximum enhancement layer doping concentration in an enhancement layer depth separates the base layer from the drift layer. An n doped plasma enhancement layer having a maximum plasma enhancement layer doping concentration covers an edge region between the protection pillow and the trench gate electrode. The n doping concentration decreases from the maximum enhancement layer doping concentration towards the plasma enhancement layer and the n doping concentration decreases from the maximum plasma enhancement layer doping concentration towards the enhancement layer such that the n doping concentration has a local doping concentration minimum between the enhancement layer and the plasma enhancement layer.

The invention relates to a fluorescent material and a white light emitting device. The fluorescent material has the following structural formula: (Re1-yBay)3-x(Rg)5O12:Cex, wherein Re is one or a combination of Y, Tb, Lu, Sc, La, Gd and Sm; Rg is one or a combination of Al, Ga and In; and 0<x<3 and 0<y<1. The fluorescent material and white light emitting device provided by the invention are simple and quick to prepare and easy to realize mass production; and the material has the advantages of high thermal stability, high luminous intensity and great industrial application value.

The invention provides a method for preparing graphene by using a liquid alkali metal, the liquid alkali metal is subjected to a reduction reaction with carbon dioxide gas in a high-temperature environment to generate carbon elementary substance (namely the graphene) to prepare the graphene, the preparation process is simple and rapid, pollution is avoided, the requirements on the preparation environment and equipment are low, the cost is low, the control process can be controlled to stop in a controllable manner at any time; the production content of the graphene is controlled, and the production quality and the production speed are controllable.

The invention discloses ink-jet printing glucose detection test paper immobilized by using sol-gel. The ink-jet printing glucose detection test paper is prepared by the following steps: uniformly mixing solutions of glucose oxidase, peroxidase and other reactants with sol-gel with enzyme stability, dropwisely adding into an indication area, and carrying out dark drying treatment on the obtained test paper, thereby obtaining the test paper. An indication area, a channel and a to-be-detected liquid area are constructed on the test paper by virtue of a paraffin ink-jet printing technology; when the test paper is used, a certain amount of to-be-detected liquid is dropwise added into the to-be-detected liquid area, the to-be-detected liquid diffuses to the indication area under the capillary action, detection can be performed through color change of the indication area after a period of time, the sol-gel used for immobilization can maintain the activity of enzyme and the shelf life of the test paper is prolonged to 1-2 months. According to the test paper prepared by the method, the consumption of the indicator is extremely low and the cost is greatly saved. The prepared test paper is uniform in color development and the sensitivity is greatly improved.

The invention provides a method for forming a molten pool through a side-blown smelting furnace in a thermal state. The method comprises the steps that the side-blown smelting furnace is dried according to a set furnace drying curve; a smelting backing material is added into the side-blown smelting furnace with furnace drying completed, a primary air opening of the side-blown smelting furnace is closed, and a combustor is inserted into the side-blown smelting furnace to melt the smelting backing material so as to form an initial molten pool; and smelting raw materials are continuously added into the initial molten pool, oxygen-enriched air is sprayed into the side-blown smelting furnace through a spray gun inserted into the position below the liquid level in the side-blown smelting furnace, the smelting raw materials are continuously molten to form a molten pool, and after the liquid level of the molten pool is higher than the primary air opening, the primary air opening is opened fornormal production. According to the method, the molten pool can be quickly and safely formed, the production efficiency is improved, the blow-in time is shortened, smelting reaction heat is fully utilized, and fuel consumption is reduced.

The invention discloses a preparation method and application of a lignin modified titanium carbide oil-water separation material, and belongs to the technical field of functional material preparation. The preparation method comprises the following steps: firstly, uniformly mixing and stirring natural polymer lignin and titanium carbide Ti3C2Tx dispersion liquid, so as to insert the lignin between Ti3C2Tx layers or modify the lignin on the surfaces of the Ti3C2Tx layers and further to prepare the lignin modified Ti3C2Tx powder; and then adding the pretreated sponge into the lignin modified Ti3C2Tx dispersion liquid, conducting dipping and stirring twice, and conducting drying to obtain the lignin modified titanium carbide Ti3C2Tx oil-water separation sponge. The preparation method is simple and easy to implement, the prepared oil-water separation sponge has good hydrophilic and oleophobic properties, the material is environmentally friendly, secondary pollution to the environment is avoided, the sponge can be used as an environment-friendly functional Ti3C2Tx oil-water separation material, and a new method is provided for preparation of the functional Ti3C2Tx material.

The invention discloses a pipeline dredging cleaning agent which is composed of the following components by the mass percentage: 20-40% of sodium dichloroisocyanurate, 7-11% of a foaming agent, 2-6% of an adjusting agent, 2-10% of an interfacial active agent and the balance being water, and the sum of the mass percentages of the components is 100%. The invention further discloses a preparation method of the pipeline dredging cleaning agent. When the pipeline dredging cleaning agent is used, the pipeline dredging cleaning agent is directly poured into a to-be-dredged pipeline to react with impurities in the pipeline and dissolve the impurities, professionals and professional tools are not needed, time and labor are saved, additional damage to the pipeline is avoided, and the dredging effectis good; the preparation method of the pipeline dredging cleaning agent is simple and convenient in preparation process and low in cost, and can be used for industrial production on a large scale.

The invention relates to a pipeline welding auxiliary device and a manufacturing method thereof. The pipeline welding auxiliary device comprises two wind shield assemblies arranged in a spaced mannerand switching type magnetic seats. Each wind shield assembly is provided with multiple wind shields. The multiple wind shields of each wind shield assembly are connected and are suitable for rotatingwith the connecting point as the axis so that the wind shield assembly can be bent and attached to the outer portion of a pipeline. The switching type magnetic seats are connected to the wind shield assemblies and are detachably connected with the pipeline. The pipeline welding auxiliary device further comprises a fire receiving hopper and a steel wire rope connected with the fire receiving hopper. The fire receiving hopper is suspended on the switching type magnetic seats through the steel wire rope. The pipeline welding auxiliary device has the advantages that manufacturing and mounting aresimple and fast, and adaptability to different pipe diameters and welding positions is good, and the pipeline welding auxiliary device can be widely applied to pipe welding work.