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28 results about "Simethicone" patented technology

This product is used to relieve symptoms of extra gas caused by air swallowing or certain foods/infant formulas.

Well cementation self-healing cement paste and preparation method thereof

The invention relates to the technical field of oil and gas field development, in particular to well cementation self-healing cement paste and a preparation method thereof. The concrete is prepared from the following components in parts by weight: 4 to 6 parts of repairing agent, 41 to 53 parts of cement, 18 to 22 parts of silica fume, 0.1 to 0.5 part of basalt fiber, 1 to 5 parts of expanding agent, 0.3 to 0.9 part of fluid loss agent, 0.2 to 0.4 part of bentonite, 1.7 to 2.3 parts of naphthalene sulfonate formaldehyde condensate, 0.1 to 0.2 part of simethicone and 1 to 3 parts of retarder, wherein the repairing agent is formed by modifying ethyl cyanoacrylate, candelilla wax and 3-isocyanate propyl trimethoxy silane according to the mass ratio of 1: (1-2): (0.1-0.3). According to the invention, ethyl cyanoacrylate is used for repairing micro cracks of cement, candelilla wax and nano silicon dioxide are used for carrying out microencapsulation to protect ethyl cyanoacrylate, and methoxy groups of 3-isocyanate propyl trimethoxy silane enhance the interface bonding force between microcapsules and a cement slurry system, so that the service life of a cement structure is effectively prolonged.
Owner:SICHUAN ANNUS OIL & GAS ENERGY TECH CO LTD

High-performance syringe rubber protective cap and preparation method thereof

PendingCN119912733AVulcanizationStearic acid
The invention relates to the field of medical rubber, in particular to a high-performance syringe rubber protective cap and a preparation method of the high-performance syringe rubber protective cap. The rubber material is prepared from the following components in parts by weight: 100 to 150 parts of modified polyisoprene, 5 to 10 parts of alkaline white carbon black, 30 to 50 parts of calcined kaolin, 1 to 2 parts of peroxide, 0.2 to 0.5 part of vulcanization accelerator, 1 to 3 parts of stearic acid, 5 to 15 parts of ultrahigh molecular weight polyethylene powder, 1 to 2 parts of carbon black and 5 to 10 parts of dimethyl silicone oil. The syringe rubber protective cap prepared by the invention has excellent puncture resistance, air tightness and environmental protection property, and does not easily generate adverse reaction with compound medicines.
Owner:ZHEJIANG JINGUO IND CO LTD

Environment-friendly and energy-saving diesel engine clean fuel

The application discloses an environment-friendly and energy-saving diesel engine clean fuel, and particularly relates to the technical field of clean fuel.The environment-friendly and energy-saving diesel engine clean fuel is prepared from an additive and kerosene in a mass ratio of 1:(300-430).The additive comprises the following raw materials in parts by mass: a cetane improver 40-62 parts, an anti-knock agent 5-10 parts, an anti-corrosion agent 15-30 parts, dimethyl silicone oil 8-10 parts, and a cleaning agent 3-6 parts.The additive is mixed with kerosene, the stability of the fuel is further improved, the utilization rate of the fuel is improved, so that the prepared clean fuel can be effectively combusted in use, and environmental pollutants generated in the combustion process are reduced.
Owner:倪有健

Spatial reticular silicon paste type defoaming agent as well as preparation method and application thereof

The invention discloses a spatial reticular silicon paste type defoaming agent as well as a preparation method and application thereof. The preparation method comprises the following steps: putting fluorine-containing ethynyl MQ silicon resin, hydrogen-containing silicone oil, hydroxyl silicone oil, hydrophobic SiO2 and dimethyl silicone oil into a reaction kettle, carrying out nitrogen protection, stirring and heating to 65-90 DEG C, adding chloroplatinic acid, carrying out an addition reaction for 0.5-2 hours, then adding a base catalyst, continuing to heat to 120-140 DEG C, carrying out a condensation polymerization reaction for 2-4 hours, cooling and discharging to obtain spatial reticular silicon paste; mixing the spatial reticular silicon paste, the polyether modified silicone oil, polyether and the emulsifier, stirring and heating to 55-65 DEG C, adding deionized water for phase inversion emulsification, cooling, adding deionized water, and adding the thickener to obtain the spatial reticular silicon paste type defoaming agent. Compared with the traditional silicon paste type defoaming agent in papermaking pulping, especially chemical pulping, the defoaming agent prepared by the invention has the characteristics of high black liquor defoaming speed, good foam inhibition property, good pulp washing water filtration property, no toxicity, no harm and simple preparation process.
Owner:ZHEJIANG TRANSFAR WHYYON CHEM

Proportioning tank for production

The utility model discloses a batching tank for production, which comprises a batching tank shell, the top of the batching tank shell is fixedly provided with a top cover, and the bottom of the top cover is provided with a telescopic component used for promoting the turnover reaction of dimethyl silicone oil and a compound; the telescopic assembly comprises a first telescopic air cylinder, the first telescopic air cylinder is fixedly installed at the bottom of the top cover, the output end of the first telescopic air cylinder is fixedly connected with a telescopic rod, the outer ring of the telescopic rod is fixedly sleeved with a trapezoidal block, and the left side and the right side of the inner ring of the batching tank shell are slidably connected with sliding blocks through sliding grooves. A spring is fixedly connected to one side of the sliding block, a semicircular plate is fixedly installed at the end, away from the sliding block, of the spring, a plurality of round holes and a trapezoid opening are formed in the semicircular plate, and the trapezoid opening is matched with the trapezoid block. By arranging the motor, the stirring plate I and the stirring plate II are driven to rotate when being started, so that reactants in the batching tank are uniformly mixed, the reaction of raw materials and compounds is accelerated, and the batching speed and efficiency are improved.
Owner:JIUJIANG XINGCHENG POLYMER MATERIAL CO LTD

Defoaming agent adaptive to digestive tract environment, preparation method and application

PendingCN121371231AIn-vivo testing preparationsSodium bicarbonateCaplet Dosage Form
The invention discloses a defoaming agent adaptive to a digestive tract environment, and a preparation method and application thereof, and relates to the technical field of digestive tract examination assistance. The defoaming agent comprises simethicone, hyaluronidase, bromelain and sodium bicarbonate, and the preparation form is a capsule in which a quick-release drug-loading unit and an enteric drug-loading unit are mixed. The preparation method comprises the following steps: preparing the quick-release drug-loading unit, preparing the enteric drug-loading unit, and mixing and encapsulating. The defoaming agent is orally taken 25-35 minutes before gastroscopy, a closed loop of gastric acid neutralization, thick mucus degradation and foam removal effects can be formed, the problem of poor defoaming caused by mucus wrapping foam is solved, the field of view in the stomach is optimized, and the accuracy of stomach disease diagnosis is guaranteed.
Owner:BEIJING FRIENDSHIP HOSPITAL CAPITAL MEDICAL UNIV +1

Circulating flow method for conveying thick oil through horizontal circular pipe at normal temperature

The invention discloses a circular flow method for normal-temperature conveying of thick oil through a horizontal circular pipe, and relates to normal-temperature conveying of the thick oil in a wide flow ratio by using dimethyl silicone oil and poly-alpha olefin oil as fluid for isolating the thick oil. The dimethyl silicone oil and the poly-alpha olefin oil are used as circulation media, the difference between the apparent viscosity of the circulation media and the thick oil at 25 DEG C and 5 s <-1 > is 50-300 times, the kinematic viscosity of the circulation media and the thick oil at the temperature of-20 DEG C is 500-3000 cSt, the pipeline temperature is the normal temperature of 25 + / -5 DEG C, and the wide flow ratio is that the volume flow ratio range of the thick oil and the circulation media is 0.5-4.0. According to the circulation flowing method for conveying the thick oil at the normal temperature through the horizontal circular pipe, stable circulation flowing can be formed in the hydrophilic circular pipe and the lipophilic circular pipe with the horizontal smooth inner wall through a simple device, the thick oil is prevented from adhering to the wall, and the flowing method which is low in energy consumption, not prone to instability and easy to separate subsequently is provided for long-distance pipeline conveying of the thick oil at the natural environment temperature.
Owner:EAST CHINA UNIV OF SCI & TECH

Preparation process of wine-processed propolis traditional Chinese medicine decoction pieces

The invention discloses a preparation process of wine-processed propolis traditional Chinese medicine decoction pieces, which comprises the following steps: (1) dissolving and extracting a raw material propolis with an ethanol water solution to obtain a propolis liquid; (2) filtering the propolis liquid through a plate frame, recovering ethanol, and collecting propolis extract; (3) the propolis extract is dripped and formed by a pill dropping machine, the wine-processed propolis traditional Chinese medicine decoction pieces are obtained, and the technological parameters of the pill dropping machine are as follows: the dripping temperature is 105-135 DEG C, the pipe orifice temperature is 50-70 DEG C, the coolant temperature is less than or equal to 10 DEG C, the dripping distance is 3-6 cm, and the coolant is dimethyl silicone oil. The problem of coolant residue in the decoction pieces and the problem of adhesion of the decoction pieces can be well solved.
Owner:JIANGXI QIRENTANG DECOCTION PIECES CO LTD

Preparation process of wine-processed propolis Chinese medicinal slices

The present invention discloses a preparation process for wine-processed propolis Chinese medicinal slices, comprising the following steps: (1) dissolving and extracting raw propolis with an ethanol-water solution to obtain a propolis liquid; (2) filtering the propolis liquid through a plate-frame filter, recovering ethanol, and collecting a propolis extract; and (3) dripping the propolis extract into a pill-making machine to obtain wine-processed propolis Chinese medicinal slices. The pill-making machine process parameters are as follows: a dripping temperature of 105-135°C, a nozzle temperature of 50-70°C, a coolant temperature of ≤10°C, a dripping distance of 3-6 cm, and dimethyl silicone oil as the coolant. The present invention can effectively solve the problems of coolant residue in the medicinal slices and the problem of the medicinal slices sticking together.
Owner:JIANGXI QIRENTANG DECOCTION PIECES CO LTD

A compound emulsion and a preparation method thereof

PendingCN122321178ACelluloseStearic acid
The present application belongs to the field of preparation, and particularly relates to a compound emulsion and a preparation method thereof. The compound emulsion provided by the present application comprises the following components: simethicone, procaine hydrochloride, polyoxyl 40 stearate, glycerin monostearate, sodium carboxymethyl cellulose, a bacteriostatic agent, a pH regulator, a flavoring agent and water; wherein the content of the simethicone is 4 g%, the content of the procaine hydrochloride is 0.3%, the content of the polyoxyl 40 stearate is 0.8-1%, the content of the glycerin monostearate is 0.8-1%, and the content of the sodium carboxymethyl cellulose is 0.6-1.6%; the pH of the compound emulsion is 4.8-5.2, the emulsion droplet particle size D 10 is 1-3 microns, the emulsion droplet particle size D 50 is 3-6 microns, and the emulsion droplet particle size D 90 is 6-20 microns. The compound emulsion contains both the simethicone with defoaming capacity and the procaine hydrochloride with local anesthetic effect, and the emulsion has suitable particle size distribution and stable quality.
Owner:CHONGQING JEWELLAND PHARM DEV CO LTD

A kind of simethicone powder and its preparation method and application

The present invention belongs to the field of pharmaceutical technology, and relates to the treatment of gastric diseases, and in particular to a simethicone powder and its preparation method and application, comprising simethicone, alkaline compounds, fillers, dispersants and flavoring agents. The present invention is prepared into a powder that can be used in combination through creative prescriptions and processes, and is orally used to treat gastric diseases such as gastric acid and abdominal bloating, and can also be used as a defoaming agent before gastrointestinal endoscopy. After administration of different doses, the number of drug-effect hiccups in modeling mice was significantly reduced, and the volume of gastric accumulation was significantly reduced.
Owner:SHANDONG SEQUENTIAL BIOTECHNOLOGY CO LTD

Anti-adhesion functional coating and preparation method and application thereof

ActiveCN117384548BHigh biosecurityStrong biological securityProtein coatingsThrombusAdhesion strength
The present invention provides an anti-adhesion functional coating and a preparation method and application thereof. The preparation method of the anti-adhesion functional coating of the present invention comprises the following steps: S1: mixing amino silicone oil and dimethyl silicone oil to obtain a silicone oil mixture; S2: adding the silicone oil mixture dropwise to a gelatin aqueous solution, stirring and mixing, and then performing a cross-linking reaction to obtain a reaction liquid; S3: coating the reaction liquid on a substrate, curing, and obtaining an anti-adhesion functional coating. The anti-adhesion functional coating of the present invention has strong adhesion to the substrate and can be used as an ideal coating to prevent blood from adhering to form thrombi; at the same time, the anti-adhesion functional coating has extremely strong biosafety and can be extended to the inner coating of food bottles to prevent the adhesion of foods with high viscosity such as yogurt and ketchup, thereby reducing food loss and improving resource utilization.
Owner:GUANGZHOU UNIVERSITY

Tail gas recovery process for producing insoluble sulfur by high-temperature liquid sulfur atomization direct method

The invention relates to a tail gas recovery process for producing insoluble sulfur by a high-temperature liquid sulfur atomization direct method, which comprises the following steps: S1, carrying out quenching granulation on high-temperature tail gas through a quenching tower, atomizing liquid sulfur into liquid drops with the particle size of 50-200mu m by using an atomizing nozzle, directly contacting the liquid sulfur with the high-temperature tail gas, and quickly condensing into spherical sulfur particles, and controlling the cooling rate to be 103-104 DEG C / s through low-temperature circulating oil or liquid carbon dioxide, inhibiting particle aggregation, and obtaining the monodisperse sulfur microspheres. Modified white oil or dimethyl silicone oil is adopted as an absorbent, and spraying of an alkaline solution is combined, so that deep purification of harmful substances such as sulfur steam, sulfur dioxide and hydrogen sulfide is realized, and the monodisperse sulfur microspheres are obtained. The tail gas recovery rate reaches up to 95% or above, meanwhile, the recovered sulfur particles and byproducts can be recycled, the resource utilization rate is increased, particle size regulation and morphology optimization of the sulfur particles are synchronously achieved in the tail gas recovery process, and spherical or regular-shaped sulfur particles meeting the high-end market requirement can be produced.
Owner:梁信嘉

High-purity ultralow-viscosity dimethyl silicone oil and preparation method thereof

The invention belongs to the technical field of materials, and particularly relates to high-purity ultralow-viscosity dimethyl silicone oil and a preparation method thereof. In the prior art, the purity of ultralow-viscosity dimethyl silicone oil components is not high, and most of the ultralow-viscosity dimethyl silicone oil components are low-viscosity mixture silicone oil. According to the method, the ultralow-viscosity dimethyl silicone oil with the viscosity being lower than 5 cs is synthesized from formula design and formula perspective, particularly, the proportion of the viscosity being 1-2 cs can account for 50% or above of the total amount of the silicone oil (can be detected and analyzed through gas chromatography), then the self-made ultralow-viscosity dimethyl silicone oil is transferred to a rectifying tower, and 1 cs silicone oil, 1.5 cs silicone oil and 2 cs silicone oil with the purity gt are rectified out in a segmented mode; therefore, the use requirements of daily use chemicals are met.
Owner:NAPA CHEM (SHANGHAI) CO LTD

Liquid oil composition and cosmetic comprising same

A liquid oily composition according to the present invention comprises: component (A): a dimethicone having a kinematic viscosity at 25 DEG C of 4-12 mm2 / s; component (B): an ester oil which is a liquid at 25 DEG C and which has a simethicone solubility value of 1.75 or more as determined by formula (I); and component (C): an ester oil which is a liquid at 25 DEG C and which has a simethicone solubility value of less than 1.75 as determined by formula (I), the liquid oily composition being transparent and uniform at 25 DEG C, and component (A) being separated from a mixture in which 8 parts by mass of macadamia nut oil is added per 100 parts by mass of the liquid oily composition.
Owner:THE NISSHIN OILLIO GRP LTD

Spraying glue, preparation method and application thereof and air-cooled refrigerator

The invention discloses spraying glue, a preparation method and application thereof and an air-cooled refrigerator, and belongs to the field of refrigeration appliances and refrigerators. Comprising 107 silicone oil, dimethyl silicone oil, calcium carbonate and a curing agent, the weight part of the 107 silicone oil is selected from any one of 30-35 parts, the weight part of the dimethyl silicone oil is selected from any one of 6-8 parts, the weight part of the calcium carbonate is selected from any one of 20-35 parts, and the weight part of the curing agent is selected from any one of 5-7 parts. The method is applied to the aspect of air-cooled refrigerators, solves the technical problems that an existing refrigerator fan protection method is poor in uniformity, poor in waterproof capacity and short in duration time, and a base plate is corroded after the whole machine operates for 2-3 years, and has the advantages that the base plate and water vapor can be effectively isolated, so that the base plate in the fan is prevented from being corroded by the water vapor, and the service life of the refrigerator fan is prolonged. And the service life of the fan is prolonged, so that the service life of the whole machine refrigerator is prolonged.
Owner:HISENSE(SHANDONG)REFRIGERATOR CO LTD

Non-toxic polyether defoaming agent and preparation method thereof

The invention discloses a non-toxic polyether defoaming agent and a preparation method thereof, and belongs to the technical field of polyether defoaming agent preparation. Mainly comprises the following raw materials in parts by mass: 70-80 parts of a polyether modified organosilicon surfactant, 15-25 parts of simethicone, 4-6 parts of hydrophobic fumed silica, 3-10 parts of an emulsifier, 2-6 parts of a thickener, 1-2 parts of an auxiliary agent and 60-80 parts of deionized water. The surface tension of an aqueous solution of an alkyl-modified organosilicon surfactant is lower, then hydrophobic-treated hydrated silicon dioxide, simethicone and a self-made organosilicon-modified polyether surfactant are compounded to prepare silicon paste, and then the silicon paste is mixed with an emulsifier, deionized water and a thickener to prepare the defoaming agent. Results of thermal stability, centrifugal stability, water dispersibility and practical application evaluation experiments of the defoaming agent show that the defoaming agent has good defoaming and foam inhibition performance, and hydrophobic groups in the defoaming agent can be increased due to the introduction of alkyl in the hydrogen-containing silicone oil.
Owner:SICHUAN CHENHENG ENVIRONMENTAL PROTECTION TECH CO LTD

Premixed gap sealant composition for rubber dams and method for its preparation and use

This invention provides a premixed gap sealant composition for rubber dams, its preparation method, and its application. The composition comprises the following components: component a: a water-absorbing and swelling material; component b: a hydrophobic liquid carrier; and component c: a thickener. Components a and c account for 41%-72% of the total mass of the composition, and component b accounts for 28%-59% of the total mass of the composition. The hydrophobic liquid carrier includes one or more of dimethyl silicone oil, eugenol, dimethylsiloxane, polymethylsiloxane, silicone oil, and vegetable oil. This invention also provides a method for preparing the above composition and its application in the preparation of hydrophobic and water-resistant sealants. This composition effectively seals gaps around rubber dams and is resistant to liquid rinsing without leakage.
Owner:BEIJING C ROOT DENTAL MEDICAL DEVICES CO LTD

Thermal insulation material for cold storage wall body and preparation method of thermal insulation material

PendingCN121914359APolymer scienceSide chain
The invention discloses a thermal insulation material for a refrigeration house wall and a preparation method thereof.The preparation method comprises the steps that polytetrahydrofuran ether glycol, modified monomers and toluene-2, 4-diisocyanate are mixed and stirred, thermal insulation filler, stannous octoate, simethicone, deionized water and dichloromethane are added, foaming treatment is performed after stirring treatment, and the thermal insulation material for the refrigeration house wall is prepared. The thermal insulation material is a polyurethane material with a closed-cell foam structure, the structure can effectively prevent loss of heat energy and influence of external cold and hot air, a polyhedral oligomeric silsesquioxane structure in the thermal insulation filler can fill part of pores, reduce the proportion of macropores and enable pore size distribution to be more uniform, gas convective heat transfer is further inhibited, and the thermal insulation effect is improved. The side chain of the polyurethane chain segment and the polysiloxane chain segment on the surface of the thermal insulation filler can increase the hydrophobicity of the thermal insulation material, so that the thermal insulation effect reduction caused by water absorption in the use process of the thermal insulation material is avoided.
Owner:CHINA CONSTR THIRD ENG BUREAU GRP CO LTD

Clean and environment-friendly biofuel-gasoline alternative fuel and preparation method thereof

The invention relates to the field of gasoline alternative fuels, in particular to a clean and environment-friendly biofuel-gasoline alternative fuel and a preparation method thereof.The clean and environment-friendly biofuel-gasoline alternative fuel is prepared from dimethyl silicone oil, fatty acid methyl ester, polyoxymethylene dimethyl ether, mixed alcohol, ethylene glycol monomethyl ether, Fischer-Tropsch wax, low-carbon-number fatty alcohol, laurinol, high-carbon-number fatty alcohol and methyl tert-butyl ether; the energy-saving synergistic combustion improver is prepared from glycerin fatty acid ester, glycerin decanoate, xylene, diisopropyl ether, isopropanol, ethyl tert-butyl ether and an energy-saving synergistic combustion improver. In order to solve the problems that the quality guarantee period of gasoline is short and stratification and precipitation occur after the expiration date, polyoxymethylene dimethyl ether is used as an optimal solvent for clean energy added into the gasoline, a small amount of mixed alcohol, Fischer-Tropsch wax, dimethyl silicone oil, fatty acid methyl ester and the like are added, and then biological raw materials such as an energy-saving synergistic combustion improver and the like and coalification raw materials are added; the clean and environment-friendly biofuel-gasoline alternative fuel compounded by physical and chemical adsorption mixed thermal regulation physical blending reaction has a shelf life of more than 3 years.
Owner:SHANXI ZHONGSHENG CHENXI CLEAN ENERGY DEVELOPMENT CO LTD

Root canal filling material and preparation method thereof

The invention provides a root canal filling material and a preparation method thereof.The root canal filling material comprises Iroot-sp paste and simethicone, the content of the simethicone is 5-20% of that of the Iroot-sp paste, by adding the simethicone, the hydrophilicity of the filling material is improved, the cavity is reduced, the filling tightness is remarkably improved, and the service life of the root canal filling material is prolonged. Therefore, wider clinical application scenes are met, and a better treatment effect is obtained.
Owner:WUHAN UNIV

Lubricating grease as well as preparation method and application thereof

The invention provides lubricating grease as well as a preparation method and application thereof. The lubricating grease comprises the following components in parts by weight: 65-85 parts of base oil, 8-15 parts of a thickening agent, 5-15 parts of an anti-wear and friction-reducing agent, 0.5-5 parts of an antioxidant and 0.5-5 parts of an antirust agent, the base oil is selected from at least one of dimethyl silicone oil and modified silicone oil. The lubricating grease provided by the invention has the advantages of good stability, wear resistance, friction reduction, excellent high and low temperature performance, and good compatibility with plastic materials.
Owner:ZHEJIANG DERUNBAO NEW MATERIALS CO LTD

Silica sol defoaming agent as well as preparation method and application thereof

The invention discloses a silica sol defoaming agent as well as a preparation method and application thereof, and relates to the technical field of defoaming agents, the silica sol defoaming agent comprises the following components in percentage by mass: 30-50% of dimethyl silicone oil, 10-17% of silica sol, 1-3% of an emulsifier EL-10 and the balance of water; the invention also provides a preparation method of the silica sol defoaming agent, which comprises the following steps: S1, dissolving the emulsifier EL-10 in water, and uniformly stirring; s2, adding silica sol into the emulsion prepared in S1, and uniformly stirring; s3, slowly and repeatedly adding simethicone into the emulsion prepared in S2, and uniformly stirring to obtain a silica sol defoaming agent; the invention also provides an application of the silica sol defoaming agent in an activated sludge treatment system, and the silica sol defoaming agent is characterized in that the addition amount of the silica sol defoaming agent is 0.013-0.33% by volume fraction.
Owner:SOUTHWEST ORDNANCE IND CHONGQING ENVIRONMENTAL PROTECTION RES INST CO LTD

Environment-friendly crusting type fireproof refractory mortar and preparation process thereof

The invention discloses environment-friendly crusting type fireproof refractory mortar and a preparation process thereof, and belongs to the field of fireproof materials. The environment-friendly crusting type fireproof refractory mortar comprises the following raw materials in parts by weight: 20-35 parts of methyl vinyl silicone rubber 610000; 15 to 25 parts of precipitated white carbon black; 25 to 40 parts of aluminum hydroxide; 10 to 18 parts of nano wollastonite powder; 2-5 parts of stearic acid; 3 to 8 parts of dimethyl silicone oil; and 5-12 parts of a composite flame retardant material. The environment-friendly crusting type fireproof refractory mortar adopts various environment-friendly raw materials, and through a reasonable formula and a specific preparation process, the environment-friendly crusting type fireproof refractory mortar has good fireproof and fire-resistant performance, processing performance and environment-friendly performance. All the raw materials cooperate with one another in a specific weight part range and play a synergistic role. According to the preparation process, the stable quality of the fireproof refractory mortar is ensured by controlling the stirring speed and time and environmental conditions, and the preparation process is simple, easy for industrial production, relatively reasonable in cost and convenient for large-scale popularization and application.
Owner:CIRS (HENAN) TECH GRP CO LTD

Geopolymer porous spherical material as well as preparation method and application thereof

The invention discloses a geopolymer porous spherical material and a preparation method and application thereof, and belongs to the technical field of porous materials. The preparation method comprises the following steps: mixing tailings and fly ash according to a mass ratio of 1: (1-5), and carrying out uniform ball milling to obtain mixed powder; then uniformly mixing the mixed powder with micro-nano bubble water containing an alkali activator, mixing the obtained geopolymer slurry with a hydrogen peroxide solution and the micro-nano bubble water, and stirring and foaming to obtain foamed slurry; and dropwise adding the foaming slurry into dimethyl silicone oil to form microspheres, curing and molding the microspheres, taking out, drying, washing, drying and curing, and calcining the cured microspheres to obtain the geopolymer porous spherical material. The preparation method is simple in process, non-toxic, environment-friendly and suitable for popularization and application, the prepared geopolymer porous spherical material has considerable adsorption capacity on toluene, is resistant to high temperature and can be recycled, and a large amount of solid waste is taken as a raw material, so that the cost is reduced.
Owner:河北省地质实验测试中心(国土资源部保定矿产资源监督检测中心 河北省金银宝玉饰品质量监督检验站) +1

Medical defoaming agent and preparation method thereof

This invention relates to the field of medical devices, specifically disclosing a medical defoamer and its preparation method. Existing medical defoamers primarily function to lubricate and eliminate gastrointestinal foam, but often have limited functionality or poor synergistic effects, impacting the clarity of gastroscopy, patient comfort, and operational efficiency. The medical defoamer of this invention comprises, by weight percentage: 1-5% dimethyl silicone oil, 0-1% Span 60, 0-0.5% Span 80, 5-10% Tween 80, 5-10% glycerol, 0.5-1% lidocaine hydrochloride, 0-0.5% potassium sorbate, 0.2-1% mono-fatty acid glycerides, and the remainder being purified water. The formulation uses a compound of dimethyl silicone oils of different viscosities and specific proportions as the core lubricating and defoaming matrix; employs a non-ionic composite emulsification system of Span and Tween to ensure stable emulsification of the oil and water phases; introduces mono-fatty acid glycerides as a physical defoaming aid and system stabilizer; and uses lidocaine hydrochloride to achieve surface anesthesia.
Owner:ANHUI ZHONGKE MEDICAL INSTR CO LTD

Preparation process of automobile silica gel foam gasket

PendingCN121517760AVulcanizationSilica gel
The invention discloses a preparation process of an automobile silica gel foam gasket, belongs to the field of automobile accessories, and aims to improve the performance and production stability of the gasket. The process comprises the following steps: firstly, preparing a component A and a component B, wherein the component A is prepared by mixing 30-50 parts of dimethyl silicone oil, 30-50 parts of vinyl silicone oil and the like; and the component B is prepared by mixing 20-40 parts of hydrogen-containing silicone oil, 20-40 parts of alkynol inhibitor and the like. And vacuumizing the two components, mixing and coating on a PET base material at the temperature of lower than 15 DEG C, and carrying out primary vulcanization at the temperature of 60-120 DEG C for 10-20 minutes and secondary vulcanization at the temperature of 200 DEG C for 1-2 hours to obtain a finished product. The flame retardance of the product reaches V-0 level, the performance is stable after the product is compressed for over 6 million times, multiple indexes and ROHS are met, the product is suitable for industrial production, and guarantee is provided for automobile parts.
Owner:HUIZHOU XINYA KAILI TECH CO LTD

Heart profound hypothermia cryopreservation system for organ transplantation

The invention belongs to the technical field of medical instruments, and provides a heart profound hypothermia cryopreservation system for organ transplantation. According to the invention, the quasi-homogeneous interface is completely attached to the inner wall of the container, so that the direct contact between the contained substance and the container body is avoided; meanwhile, the organic gel layer infiltrated with the dimethyl silicone oil is used as a quasi-homogeneous interface, so that pores in the organic gel layer can be fully filled with the dimethyl silicone oil, and the direct contact between the contained substances and the container body is further isolated; the contained substances are isolated from the container body, so that heterogeneous nucleation induced by liquid-gas and liquid-solid interfaces is effectively reduced, and the freezing risk is reduced; due to the construction of a quasi-homogeneous interface between the containing substance and the containing container body, heterogeneous nucleation sites are reduced, and the freezing risk is reduced; by means of the two characteristics, the deep hypothermia cryopreservation system is not prone to freezing of contained substances at the low temperature such as-3 DEG C; and the storage temperature is lower, so that the storage time of the contained substances is prolonged.
Owner:FUWAI HOSPITAL CHINESE ACAD OF MEDICAL SCI & PEKING UNION MEDICAL COLLEGE