41results about How to "Overcome the defect of poor stability" patented technology

The invention discloses a Zr-MOF structure based CO selective methanation Ni / ZrO2 catalyst and a preparation method of the Zr-MOF structure based CO selective methanation Ni / ZrO2 catalyst. The main active ingredient of the Ni / ZrO2 catalyst is Ni, the carrier is ZrO2, the specific surface area of the catalyst is 55-98 m<2> / g, the pore diameter is 9.0-16.2 nm, and the Ni capacity is 5-15wt%. The method comprises the following steps: (1) preparing a metal-organic framework Zr-MOF; and (2) preparing the Ni / ZrO2 catalyst. The Ni / ZrO2 catalyst is excellent in CO selective methanation, the content of CO, which is 1 vol%, in a reformed gas is reduced to be lower than 10 ppm under the conditions of wide reaction temperature interval (210-350) and reactant gas space velocity (4,000-20,000 h<-1>), and the selectivity is higher than 50%.

The invention provides an esomeprazole magnesium contained enteric-coated tablet and a preparation method thereof. The enteric coated tablet is composed of an inner tablet core layer which uses esomeprazole as an active ingredient, an intermediate insulation layer and an enteric coating protection layer. According to the esomeprazole magnesium contained enteric-coated tablet, the conditions that basic remedies are instable and prone to be oxidized and decomposed are overcome, the prepared enteric-coated tablet is even in coating, compact in coating layer, stable and reliable in quality and capable of meeting large-scale production requirements of enterprises at the present stage and has good market development prospects, the releasing rate can reach over 90%, the bioavailability is obviously improved, and safe and effective drug using is guaranteed.

The invention relates to a liquid metal insulation and heat-conduction material. The liquid metal insulation and heat-conduction material comprises a liquid metal and an insulation matrix material, the liquid metal is modified with a surface modification solution, and is uniformly dispersed in the insulation matrix material in a nano-level liquid droplet form, the liquid metal is metal or alloy having a melting point being 7-200 DEG C, and the surface modification solution is prepared through adding a surfactant into anhydrous ethanol. The liquid metal insulation and heat-conduction material prepared in the invention can guarantee a good insulation property, makes the volume resistivity equal to or more than 10<10> omega.m, has a high heat conduction property, allows the heat conductivityto reach 3.4 W / m.K or more, overcomes the defect of poor stability in the prior art, well meets the requirements of electronic devices for high performances and good heat dissipation property, has anexcellent application prospect, and promotes the further development and application of liquid metal thermal interface materials.

The invention relates to an amphoteric ion composite microsphere as well as a preparation method and application thereof. The amphoteric ion composite microsphere comprises the following components in parts by weight: 10-50 parts of a monomer, 0.05-1 part of a cross-linking agent, 0.2-10 parts of alkali, 0-40 parts of a filler, 0.05-1 part of an initiating agent and 40-70 part of deionized water. As a profile modification / water shutoff agent with high salinity resistance and high temperature stratum condition resistance for oil field profile modification, the amphoteric ion composite microsphere provided by the invention overcomes the defect of poor stability of an existing profile modification / water shutoff agent under a stratum environment with high temperature and high salinity and can be used for profile modification and water shutoff in an oil field with high temperature and high salinity, and the recovery ratio is improved.

The invention relates to a cyclodextrin inclusion drug composition for ocular inflammation resistance, which consists of vitamin C or a derivative thereof as an active ingredient, glucocorticoid, cyclodextrin and one or more pharmaceutically acceptable pharmaceutical excipients capable of acting on eyes, wherein the glucocorticoid and / or the derivative of the vitamin C are included by the cyclodextrin.

The invention relates to an ionic liquid modified graphene oxide / polymer composite film, a preparation method and applications thereof, wherein the composite film is prepared from the following raw materials by weight: 100 parts of a macromolecule polymer film material, and 0.1-2 parts of ionic liquid modified graphene oxide powder, and an ionic liquid is linked to the interlayer and the surface of silanized graphene oxide through bonding to prepare the ionic liquid modified graphene oxide powder. According to the preparation, graphene oxide is firstly prepared, an ionic liquid is linked to the interlayer and the surface of the graphene oxide, a film casting liquid is formed with a macromolecule polymer film material in an organic solvent, and finally film scraping molding is performed toobtain the composite film. Compared to the film in the prior art, the film of the present invention has the following characteristic that the ionic liquid modified graphene oxide is used in the modification of the pervaporation film, such that the disadvantage that the direct application of the ionic liquid in the modification of the pervaporation film can cause the easy loss of the ionic liquid so as to cause the poor stability of the film can be overcome.

The invention relates to an intelligent configuration method for technological parameters in a polyester fiber production process. The method is characterized in that the performance indexes of the expected polyester fibers are inputted into a trained improved SA-PSO-ELM algorithm model, and the trained improved SA-PSO-ELM algorithm model outputs the technological parameters in the production process of the expected polyester fibers; the improved SA-PSO-ELM algorithm model is characterized in that a weight value and a threshold value between an ELM network input layer and a hidden layer are used as the particles of a PSO algorithm; a mean square error function is used as a fitness function of a PSO algorithm, the PSO algorithm is adopted to optimize the ELM algorithm, meanwhile the difference value of the maximum fitness and the minimum fitness of the initial group particles of the PSO algorithm is used as the initial temperature in the improved SA algorithm, and the improved SA algorithm is adopted to optimize the PSO algorithm; and during training, the performance indexes of historical polyester fibers and the production process technological parameters are used as input items and output items of the improved SA-PSO-ELM algorithm model. According to the present invention, the production process technological parameters can be directly obtained according to the expected fiberperformance index, the process is simple, the consumed time is short, the configuration result stability is good, and the precision is high.

The invention discloses an anti-aging high-flame-retardant ethylene propylene diene monomer rubber pipe comprising the raw materials: ethylene propylene diene monomer, polyvinyl chloride, chlorinated polyethylene, zinc oxide, stearic acid, bromo-octyl-phenolic curing resin, dicumyl peroxide, modified nano-silicon dioxide, attapulgite, expandable graphite, polyacrylonitrile fiber, cerous phosphate, pentaerythritol, ammonium polyphosphate, an anti-aging agent MC, an anti-aging agent MB, zinc nitrilotiracetate, calcium nitrilotiracetate, an accelerant, diethylene glycol dibenzoate, tricresyl phosphate, and a silane coupling agent. The anti-aging high-flame-retardant ethylene propylene diene monomer rubber pipe disclosed by the invention has the advantages of high strength, excellent anti-aging and flame-retardant property and long service life.

The invention discloses a high-stability potato peptide emulsion and a preparation method thereof. The preparation method of the potato peptide emulsion comprises the following steps that (1) a potato peptide water solution and vegetable oil are mixed, and a fresh emulsion is obtained after homogenizing; (2) the fresh emulsion is processed with a high pressure homogenizing cooperated with high static pressure method, and the high-stability potato peptide emulsion is obtained. The provided potato peptide emulsion has high emulsification stability and oxidation stability, can be taken as the raw material for preparing functional food, can improve the potato processed product added value and has a wide application prospect in the fields of foods, cosmetics and the like. The provided preparation technology is simple, and the high-stability potato peptide emulsion is easy for industrialization production.

The invention relates to the fields of medicine and dosage forms of medicine, in particular to an oral liquid preparation of rupatadine fumarate and a preparation method of the oral liquid preparation, and discloses an oral liquid preparation of rupatadine fumarate. The oral liquid preparation per 100 mL contains 0.128 g of rupatadine fumarate, 1-20 g of a solubilizer, 1-30 g of a sweetening agent, 0-0.2 g of a flavoring agent, 0-0.01 g of a coloring agent, 0-0.20 g of a preservative and a pH regulator for adjusting the pH value to 4.6-5.6. The oral liquid preparation of rupatadine fumarate has good stability in the study of accelerated stability.

The invention discloses a bifunctional soybean-derived polypeptide and a preparation method thereof, and belongs to the technical field of functional polypeptides. The method comprises the following steps: firstly, extracting bean-source isolated protein from beans by adopting an alkali-solution and acid-isolation method, then carrying out infrared heat treatment on the bean-source isolated protein, and finally, carrying out protease enzymolysis to obtain the bean-source polypeptide. The bean-source polypeptide has dual functions of antihypertensive activity and antioxidant activity at the same time.

The invention discloses a long-acting antibacterial agent. The long-acting antibacterial agent is prepared by the following steps: 1) preparing polyurethane aerogel, 2) preparing a nano silicon dioxide polyurethane aerogel composite carrier, and 3) preparing the antibacterial agent. According to the long-acting antibacterial agent disclosed by the invention, titanium dioxide is loaded in the silicon dioxide hollow microspheres, so that the defect of poor stability of titanium dioxide can be effectively overcome, titanium dioxide is slowly diffused to the outside, the antibacterial time efficiency of the long-acting antibacterial agent can be improved, and the utilization rate of titanium dioxide is increased. The nano titanium dioxide-nano silicon dioxide compound is stably adsorbed by utilizing the characteristics of high specific surface area and high porosity of the polyurethane aerogel, and agglomeration of the nano titanium dioxide-nano silicon dioxide compound can be prevented, so that the antibacterial effect of the nano titanium dioxide can be fully exerted, and finally, excellent antibacterial performance is obtained. The long-acting antibacterial agent disclosed by the invention can be applied to preparation of materials such as coatings or films with antibacterial properties, and has a very good market application prospect.

A freeze-dried powder injection of ginkgo leaf extract is prepared from the ginkgo leaf extract containing ginkgolide and ginkgetin through dissolving it in the water for injection, proportionally mixing with mannitol, filtering, superfiltering, freeze drying and sealing. It has high stability.

The invention relates to a preparation method of a nano titanium dioxide modified polyacrylate coating agent with a core-shell structure. Firstly, an aluminum zirconium coupling agent and nano titanium dioxide are added to deionized water, and the mixture is stirred for a refluxing reaction for 30 min; deionized water, an emulsifier, an acrylate monomer and a nano titanium dioxide dispersion liquid are added to a reaction kettle, and the mixture is heated to 55-58 DEG C and stirred at a high speed to form an emulsified liquid; deionized water, the acrylate monomer and an emulsifier are added to an emulsification kettle and stirred at a high speed to form a pre-emulsified liquid; an initiator is dissolved in deionized water, and an initiator solution is prepared; after the temperature of the reaction kettle is increased to 65-68 DEG C, the initiator solution is added, and a thermal insulation reaction is performed for 1 h; the pre-emulsified liquid, crosslinking monomers and the remaining initiator water solution are dropwise added within 2 h, the mixture is subjected to a thermal insulation reaction at the temperature of 80 DEG C for 1 h after the pre-emulsified liquid, crosslinking monomers and the remaining initiator water solution are dropwise added, and cooling and filtration are performed.

The invention provides a purifying device. The purifying device comprises a flow-guiding part, a negative ion generation device and a flow-guiding cover, wherein the flow-guiding part is provided withan air duct; the negative ion generation device comprises emitting heads, the emitting heads face the air duct, a first limiting structure is arranged on the flow-guiding part, the first limiting structure is arranged on an inner wall of the air duct, and positioning grooves suitable for accommodating the emitting heads are formed in the first limiting structure; and the flow-guiding cover is arranged above the inner wall of the air duct, and covers the positioning grooves, and the inner wall of the air duct is suitable for supporting the flow-guiding cover. Through the positioning grooves inthe first limiting structure of the flow-guiding part, the emitting heads are positioned and installed, thus the emitting heads are accurately installed on the inner wall of the air duct, moreover, through limiting of portions, except the emitting heads, on the negative ion generation device, escape of the emitting heads from the positioning grooves can be prevented, stable installation of the emitting heads is guaranteed, meanwhile, the flow-guiding cover covers the inner wall of the air duct, the emitting heads are fixed to installation positions, and the emitting heads are limited in different directions, so that the stability of installation of the negative ion generation device on the inner wall of the air duct is improved.

A Chinese medicine in the form of softgel for nourishing blood, promoting blood circulation and treating menoxenia is composed of the core prepared from rehmannia root, white peony root, Chinese angelica root and Chuan-xiong rhizome and the softgel wall prepared from gelatin, plasticizer, water, light shielding agent and nipagin. Its preparing process is also disclosed.

The invention provides a methane dry reforming reaction under a microwave condition and a catalyst thereof. According to the methane dry reforming reaction, the catalyst comprising a composite metal oxide M / CaZrO3 and SiC is utilized to perform reforming catalysis on CH4 and CO2 under a microwave condition to generate synthesis gas with main products of H2 and CO, and M is at least one metal element of Ni and Co. The methane dry reforming reaction provided by the invention is low in reaction temperature, low in energy consumption and high in conversion rate of methane and carbon dioxide, and the catalyst can keep relatively good activity for a long time in the use process and has good stability.

The invention discloses novel instant noodles with flour. The novel instant noodles are prepared from the following raw materials in parts by weight: 51-133 parts of flour, 1-49 parts of rice flour, 3-11 parts of edible starch and 0.3-1.4 parts of edible oil. The invention also discloses a preparation method of the novel instant noodles, and the method comprises the following steps: A, mixing the raw materials according to the proportion, adding water, and performing stirring for 10-30 minutes at the temperature of 30-50 DEG C and the rotating speed of 100-150r / min to obtain a mixture; B, sequentially extruding, puffing, forming, drying and packaging the mixture to obtain the novel instant noodles with flour. The flour is used as a main raw material, a proper amount of rice flour and edible starch are matched, the advantages of the flour and the flour are combined, and the noodles have the chewy wheat fragrance of the flour and the smoothness and elasticity of the rice flour and are unique in flavor and rich in nutrition.

The invention discloses an under-forest water and fertilizer integrated block intelligent control planting method. The method comprises the following steps: S1, a low-hill ecological public welfare forest with the tree age of 20 years or older is selected; S2, a plurality of soil slopes are leveled in an under-forest open field in a layered mode, each soil slope is a block, and at least two kinds of commercial crops are planted in each block in a crossed mode; S3, a microbial organic liquid fertilizer is sprayed to the planted economic crops respectively by adopting a water and fertilizer integrated block intelligent control technology; and the microbial organic liquid fertilizer is prepared from the following raw materials: under-forest residues, soybean meal, egg shells, traditional Chinese medicine residues, tobacco residues, bagasse, a compound microbial agent, biogas slurry, selenomethionine and vitamin C magnesium phosphate. The space under the public welfare forest is fully utilized, various commercial crops are planted at the same time, block management is carried out, the unit yield per mu and quality are improved, and economic benefits are increased.

The invention relates to a cyclodextrin inclusion drug composition for ocular inflammation resistance, which consists of vitamin C or a derivative thereof as an active ingredient, glucocorticoid, cyclodextrin and one or more pharmaceutically acceptable pharmaceutical excipients capable of acting on eyes, wherein the glucocorticoid and / or the derivative of the vitamin C are included by the cyclodextrin.

The invention provides a novel double-cylinder air pump. The novel double-cylinder air pump comprises a motor, a shell, a front end cover, a cam, a slide block, a slide block sleeve, connecting rods,pistons, a U-shaped lock piece, guide columns, cylinders, sheets, screws, front and back sealing pieces, left and right sealing pieces and small screws. The motor is screwed on the back end surface ofthe shell; the front end cover is screwed on the front end surface of the shell; a motor shaft extends into an inner cavity of the shell; the cam is pinned on the motor shaft; a thin end of the cam is hinged to a hinge column at the back part of the slide block; the slide block slides on the guide column on an inner ring of the slide block sleeve; the connecting rods protrude from two sides of the slide block sleeve; the pistons are mounted at the tail ends of the connecting rods; two cylinders are mounted on two sides of the shell respectively; the sheets are screwed on the cover walls of the outer ends of the cylinders to form one-way valve structures with intake holes; after the motor is started, the cam rotates to drive the slide block to rotate, the slide block pushes the slide blocksleeve to move left and right, and the pistons perform a reciprocating motion in the cylinders; and air is sucked into the cylinders from the intake holes, and is exhausted from exhaust holes into external pipelines.

The invention relates to a device for generating foam drilling fluid. The foam drilling fluid generating device specifically includes a foam generating device and a foam mixing device. The foaming chamber of the foam generating device is provided with a stirring rod with a helical stirring blade. The foam generating device is connected with a pressurization system to ensure that the inside of the foaming chamber under high pressure. The mixing device includes a mixing chamber and a mixing rod. The mixing rod has a hollow structure. The mixing rod is provided with helical blades and stirring blades, and small foam outlet holes are designed between the helical blades. The foam gradually enters the mixing chamber from the foam outlet of the foam generating device through the foam outlet hole on the mixing rod of the mixing device, and is evenly mixed with the drilling fluid. Compared with the prior art, the drilling fluid foam produced in the present invention has high foaming ratio, uniform foam shape, good downhole stability and good mixing effect with the drilling fluid base fluid.

The invention discloses a facial cleanser and a preparation method thereof. The facial cleanser comprises the following components in percentage by mass: 10 to 20% of sodium cocoyl apple amino acid, 6to 12% of sodium stearyl dimethyl glycine, 2 to 10% of hydrogenated tallowoyl glutamic acid, 1 to 6% of protein hydrolysate ester, 3 to 9% of cyclodextrin laurate complex enzyme, 0.5 to 2% of sodiumtocopheryl phosphate, 1 to 4% of PEG-1182 methyl ester sericin protein, 1 to 5% of xylitylglucoside, 0.1 to 0.5% of preservative and the balance of water. The facial cleanser disclosed by the invention has an obvious exfoliating effect, is very low in damage to skin, nearly has no irritation, meanwhile, has excellent effects of control oil and removing blackheads and comedones, and is prominent inskin cleansing effect, very rich in foam and easy to wash; after the facial cleanser is washed, a fake smooth feeling cannot be generated; the facial cleanser has a good moisturizing property; a dryand tense case cannot be generated; and a subject feeling of use is good.

The invention discloses a scaffold on the basis of a resistance wall of a coke oven and solves the problems of poor stability, poor safety performance and the like of a scaffold in the prior art. The scaffold on the basis of the resistance wall of the coke oven comprises scaffold main bodies, namely, a first scaffold and a second scaffold, constructed at both sides of the resistance wall of the coke oven; each of the first scaffold and the second scaffold is formed by six rows of uprights which are longitudinally arranged at intervals, transverse across columns which are transversely arranged at intervals and X-shaped support pillars for fastening the uprights and the transverse across columns; horizontal columns connected with the first scaffold and the second scaffold at the same time are arrange at the tops of the first scaffold and the second scaffold; a plurality of opposite-pulling screws connected with the first scaffold and the second scaffold are also arranged between the adjacent sides of the first scaffold and the second scaffold. The scaffold is high in structural intensity of a main body and has high frame stability; perpendicularity is ensured; pouring quality meets the construction requirements.

The invention discloses a method for preparing a micron-order phase-change microemulsion. The method comprises the following steps of: adding a nucleating agent into a phase-change material with a melting point of 0-20 DEG C, and heating and mixing the obtained mixture, so that the phase-change material is completely liquefied and the nucleating agent is dissolved in the liquefied phase-change material so as to form transparent liquid; adding a surfactant into water or a liquid mixture of water and an anti-freezing agent, heating the obtained mixture until the temperature of the mixture is same as the temperature of a dispersed phase, and stirring the mixture, so that the surfactant is dissolved in the water or the liquid mixture of water and the anti-freezing agent so as to form transparent liquid; adding the dispersed phase into a continuous phase while persistently stirring so as to form a preformed emulsion; and stirring the preformed emulsion by using a high-speed homogenizer, so that the micron-order phase-change microemulsion disclosed by the invention can be obtained. The preparation method disclosed by the invention is simple in steps and low in cost, and the prepared micron-order phase-change microemulsion is high in energy storage density, stable in performance and small in degree of super-cooling, can be pumped and can be used as a heat storage medium and a heat transfer medium for refrigeration systems.

This invention discloses an idiocratic amplification primer in medicolegal insect flies. We utilize this method to authenticate the fly species by this primer, and obtain solution box for authentication. The amplification primer special can finish the authentication within 3 hours; as a result it can be use to fast authentication.

The invention discloses a method for organically and efficiently cultivating caulis spatholobi in a pine forest. The method comprises the following steps that S1, a low-hill ecological public benefit pine forest is selected; S2, caulis spatholobi is planted in the open field under the forest, the caulis spatholobi crawls and grows along the ground, when the caulis spatholobi grows to the length larger than 0.8 m, soil blocks are adopted for compaction, and the caulis spatholobi at the compacted position roots and grows; when caulis spatholobi newly grows to the length larger than 0.8 m, the soil blocks are adopted for compaction again, the growth direction of caulis spatholobi is adjusted, and the spacing distance between the adjacent soil blocks ranges from 0.8 m to 1.2 m; in a similar fashion, when the rattans grow to the roots of pine trees, the rattans are guided to grow along the trunks of the pine trees in a winding mode; and S3, a microbial organic fertilizer is applied to caulis spatholobi in the step S2 by adopting a water and fertilizer integrated block accurate control technology for cultivation. According to the method, caulis spatholobi is cultivated by fully utilizing the under-forest space, the under-forest economic crops are cultivated under the low-hill ecological public benefit pine forest, the caulis spatholobi medicinal material with high yield and good quality can be obtained, and the economic benefit is remarkable.

The invention belongs to the technical field of aerogel preparation, and particularly relates to a chitosan-tungsten disulfide aerogel composite material as well as a preparation method and application thereof. The chitosan-tungsten disulfide aerogel composite material is prepared from the following raw materials: chitosan, an acid solution, sodium hydroxide and tungsten disulfide. Wherein the acid solution is one of glacial acetic acid, hydrochloric acid, formic acid or malic acid; the mass concentration of the acid solution is 5-10%, the solid-to-liquid ratio of the chitosan to the acid solution is (1-2): 100, and the unit is g / ml. The chitosan-tungsten disulfide aerogel composite material disclosed by the invention has a three-dimensional pore structure, low density, high specific surface area, high porosity and good adsorption capacity, and particularly has a good adsorption effect on lead ions. The chitosan-tungsten disulfide aerogel composite material prepared by the method disclosed by the invention is stable in performance, has a directional porous structure and good adsorption performance, and is suitable for industrial popularization and application.