10 results about "Simethicone" patented technology

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.