51results about How to "Process conditions are easy to achieve" patented technology

The invention provides a heat conduction composite material, which comprises a polymer matrix and a heat conduction filler filled in the polymer matrix, and the heat conduction filler is a boron nitride nano sheet of which the edge is grafted with an amino functional group. The preparation method of the heat conduction composite material comprises the following steps: preparation of a heat conduction filler dispersion liquid: grafting amino functional groups to the edges of boron nitride nano sheets through surface modification to obtain the heat conduction filler; dispersing the heat conduction filler in a dispersing agent to form heat conduction filler dispersion liquid; preparation of a polymer matrix solution: carrying out polymerization reaction on monomers for forming a polymer matrix under the action of heating and a catalyst to obtain a polymer matrix solution; adding the heat conduction filler dispersion liquid into the polymer matrix solution according to a preset proportion,and stirring and mixing to obtain mixed slurry; and curing the mixed slurry to form a film to obtain the heat conduction composite material. The heat conduction composite material provided by the invention has a good heat conduction property and mechanical property.

The invention discloses a method for separating lignin and cellulose from a lignocellulose raw material, and relates to the technical field of high-value utilization of agricultural waste resources. The method for separating the lignin and the cellulose from the lignocellulose raw material includes the following steps: mixing the lignocellulosic raw material and a mixed solvent, adding sulfuric acid, performing stirring and heating at 130-160 DEG C until reaction slurry is formed, performing filtering after cooling, washing the filter residues by using the mixed solvent, and performing dryingto obtain the cellulose; and collecting the filtrate and the washing solution, mixing the collected filtrate and washing solution, adding sulfuric acid, after the concentration of the sulfuric acid is0.5-3.0 wt%, performing a reaction at 170-190 DEG C to form a reaction solution, after cooling, adding water for precipitation, performing filtration, washing the filter residues by using water, andperforming drying to obtain the lignin, wherein the mixed solvent is a mixture of an organic solvent and water. The invention aims to provide the method for separating the cellulose and the lignin, and the method can obtain the cellulose and the lignin with high purity, and improve the yield of the lignin.

The invention relates to a preparation method of an inorganic-organic hybrid monolithic column. The preparation method comprises the following steps: A. adjusting the pH value of Fe<2+> compound containing aqueous solution, adding with nano-diamond, adding with H2O2 and reacting to obtain hydroxyl nano diamond; B. mixing the hydroxyl nano diamond with KH570, dissolving into ethyl alcohol, carrying out ultrasonic treatment, reacting, centrifuging, washing, and drying to obtain the coupled hydroxylized nano diamond; C. mixing the coupled hydroxylized nano diamond, dipentaerythritolhexaacrylate, a cross-linking agent, an initiator and a pore-foaming agent, injecting the mixture into a stainless steel column, and reacting for 1-1.5h; and D. connecting the stainless steel column with a high-pressure infusion pump, flushing, and drying to obtain the inorganic-organic hybrid monolithic column. The preparation method has simple process, the reaction condition can be realized easily, the operability is good, the prepared monolithic column has uniform framework and pore diameter, has good separation effect and can be used for separating complex samples under a wide-temperature-range condition, and the application field of the monolithic column can be expanded greatly.

A method for recovering waste silicon powder from the trichlorosilane synthetic furnace comprises the synthetic furnace and a silicon powder collection tank, and includes steps: A, replacing the synthetic furnace after the synthetic furnace stops normally; B, after replacement is qualified, connecting a silicon powder discharging valve at the bottom of the synthetic furnace with the silicon powder collection tank through a metal hose, and feeding nitrogen into the synthetic furnace through a nitrogen inlet pipeline; and C, turning on the silicon powder discharging valve to enable the silicon powder along with the nitrogen to be brought into the silicon powder collection tank, and emptying the nitrogen through a cloth bag filter at the top of the silicon powder collection tank to enable the silicon powder to be collected into the silicon powder collection tank, so that the silicon powder is fully recycled. The method for recovering waste silicon powder from the trichlorosilane synthetic furnace has the advantages that the method is simple in process, easy in implementation of process conditions and convenient to operate; and waste silicon powder in the synthetic furnace can be fully recycled in reproduction, and dust hazards to personnel bodies during recovery can be avoided. The invention further discloses a device for recovering waste silicon powder from the trichlorosilane synthetic furnace.

The invention discloses a disinfectant fluid used for washing CT units. The disinfectant fluid contains the following components by weight percent: 0.5-1.0% of quinoline, 2.0-5.0% of hydrogen peroxide, 0.1-0.5% of peroxyacetic acid, 0.5-1.5% of trichloroisocyanuric acid, 2.0-8.0% of ethanol, 3.0-6.0% of benzalkonium chloride and the balance of water. The disinfectant fluid has the beneficial effects that the production cost of the disinfectant fluid is low; the preparation process is simple; the process conditions are easy to achieve; the product stability is good.

The invention belongs to the field of building material, and relates to a method for preparing a high stone powder mixing quantity baked brick which comprises the raw materials by weight percent: 80-95% of stone powder, 2-5% of sintering auxiliary agent and 0-18% of additive. The solvent is water solution containing 2%-5% of binding agent. The preparation method comprises the steps of weighing theraw materials, mixing, molding, drying, sintering, cooling and the like. As the organic binding agent and the sintering auxiliary agent are added, the plasticity of the stone powder can be enhanced,and the formability and the sintering performance of adobe can be improved. The invention has the characteristics of simple technique, low cost, high stone powder demand, energy conservation, environmental protection, high strength of the baked brick and the like. The invention not only protects the environment and leads the recycle of the waste stone powder to step in the positive cycle of sustainable development, but also saves the land resources, thus being a useful attempt for replacing clay bricks.

The invention belongs to the technical field of related microelectronic packaging and discloses a preparation method of a nano silver ointment. The method comprises the following steps: (1) pretreating nano-grade or micrometer-grade metallic powder with self-propagating reactions so as to obtain self-propagating powder; (2) uniformly mixing a mixture of nano silver powder and the self-propagatingpowder obtained in the step (1) with an organic carrier and an organic solvent so as to obtain a mixed nano silver ointment preparation, carrying out constant-temperature water bath heating on the mixed nano silver ointment preparation at a preset temperature, and volatizing the organic solvent, thereby obtaining the novel nano silver ointment, or stirring the self-propagating powder with a conventional nano silver ointment, thereby obtaining the novel nano silver ointment. The invention further relates to a sintering method applicable to electronic packaging. Since sintering is assisted by heat generated from self-propagating reactions of the self-propagating powder, the sintering speed can be increased, and the working efficiency can be improved.

The invention discloses a new improvement method of self-focal lens optical aberration character, which comprises the following steps: measuring the refractive index distribution of self-focal lens glass yarn through film interferometric method to obtain different position of the refractive index value and refractive index distribution curve from the center to edge; comparing the obtained curve with the ideal refractive index distribution curve to affirm the biased degree; proceeding the annealing disposal in the heat treatment stove or ion exchanging stove; proceeding the second annealing disposal or adapting second ion exchanging disposal if the optical aberration character is not ideal.

The invention provides an oxacyclononadiene derivative, a stereochemical isomer thereof, a solvate thereof or a pharmaceutically acceptable salt thereof. The oxacyclononadiene derivative can achieve arelatively good anti-tumor effect. The invention also provides a preparation method of the oxacyclononadiene derivative. The preparation method comprises the following steps: adding a palladium catalyst into a reactor, then dissolving dicyanodiene and alkenyl cyclic carbonate into a solvent, adding the formed solution into the reactor under the protection of argon, carrying out a reaction for 20-30 hours at a temperature of 15-22 DEG C, and performing concentrating and purifying to obtain the oxacyclononadiene derivative. The preparation method is simple in process, high in yield and convenient for industrial popularization and application. In addition, the invention also provides a pharmaceutical composition with the oxacyclononadiene derivative as an active ingredient and application ofoxacyclononadiene in preparation of antitumor drugs.

The invention relates to food processing, in particular to an application of allium to reduction of content of heterocyclic amine in roasted schrod cakes. The application comprises the steps of dryingone of onions, leeks, allium mongolicum regel and scallions, performing crushing to obtain powder, making schrod into meat emulsion, uniformly mixing the prepared allium powder with the meat emulsionto prepare the roasted schrod cakes, placing the prepared roasted schrod cakes in an oven, and performing roasting. The application solves the technical problem that in the prior art, the content ofthe heterocyclic amine in the roasted schrod cakes is high, and has the advantages that the raw materials are cheap and easy to obtain, the technology condition is easy to control, and the restrainingeffect on the heterocyclic amine is notable.

The invention belongs to the technical field of coupling agents and discloses a coupling lubricating solution for B ultrasonic examination. The coupling lubricating solution is prepared according to the following process: step (1), mixing, stirring and heating; step (2), uniformly stirring; step (3), heating and stirring; step (4), extracting with ethanol; and step (5), stirring, sub-packaging and sealing. The coupling lubricating solution has stable physicochemical index performances and has disinfection and sterilization effects.

The invention provides nano-silver soldering paste and a preparation method thereof. The nano-silver soldering paste comprises flaky nano-silver and an organic solvent carrier which are mixed with each other, wherein the organic solvent carrier is a mixture of any two or more of ethylene glycol, glycerol, diethylene glycol, triethylene glycol, beta terpineol, gamma terpineol and delta terpineol; and the volume percentage of any organic solvent is not less than 20%. The preparation method of the nano-silver soldering paste comprises the following steps of: providing the flaky nano-silver and the organic solvent carrier, and stirring and mixing the flaky nano-silver and the organic solvent carrier to prepare the nano-silver soldering paste. The invention further provides an application of the nano-silver soldering paste in a chip packaging interconnection structure. The nano-silver soldering paste has a low-temperature sintering performance and can be well applied to the field of electronic packaging of low-temperature welding and high-temperature service. A connecting layer formed by sintering the soldering paste is high in shear strength, good in bonding degree of a connecting interface and uniform and compact.

The invention belongs to the technical field of medical disinfectants and discloses a disinfectant for the radiotherapy department. The disinfectant is prepared according to the following process which comprises a step 1) of preparing a material A, a step 2) of preparing a material B, a step 3) of preparing a material C, a step 4) of preparing a material D, a step 5) of preparing a material E and a step 6) of preparing the disinfectant. The disinfectant is good in sterilizing effect, high in stability and wide in application prospect.

The invention discloses a process for extracting diosgenine from turmeric by a catalytic hydrolysis method, which comprises the following steps of: crushing a turmeric raw material subjected to cellulose and starch removal to prepare a refined raw material; adding 0.02 to 0.02mol/L aqueous solution of catalyst into the refined raw material, heating and pressurizing to perform catalytic hydrolysis, and obtaining hydrolysis products, wherein the catalyst is one of transition metal salt, bipyridyl chelate of the transition metal salt, and tri(2-picolyl) amine complex of the transition metal salt, or a mixture of the transition metal salt and the bipyridyl chelate of the transition metal salt, or a mixture of the transition metal salt and the tri(2-picolyl) amine complex of the transition metal salt; and finally, dissolving the hydrolysis products with an organic solvent, extracting and crystallizing to obtain the diosgenine. The diosgenine is extracted from the turmeric by the catalytic hydrolysis method, the generation of a great deal of acid wastewater is avoided, and the environment is protected. Moreover, the catalyst in the process is a common compound, the process conditions are easily met, and the process can be promoted and applied.

The invention discloses a hydrogel microneedle patch for noninvasive blood glucose detection as well as a preparation method and application of the hydrogel microneedle patch. According to the invention, the microneedle patch is prepared by a turnover technology and is noninvasively applied to the skin surface, so that simple and rapid extraction of interstitial fluid in vivo and a new method for real-time, rapid and quantitative detection of blood glucose in vivo are realized. The hydrogel microneedle patch contains two hydrogel components: one hydrogel component is hydrogel which can be cured and formed by ultraviolet light, and the other hydrogel component is hydrogel which can be cured and formed by ultraviolet light; and the other hydrogel is functional hydrogel with pH responsiveness, and glucose oxidase is added, so that the hydrogel can sensitively react to in-vivo glucose. The double-response hydrogel is jointly mixed and prepared into a microneedle patch form, the microneedle patch is endowed with noninvasive/minimally invasive property when applied to the skin surface, the microneedle patch is very suitable for extraction of interstitial fluid in vivo, and then real-time, rapid and accurate detection of the blood glucose level in vivo is achieved.