205 results about "Fluorosilicone oil" patented technology

The invention relates to a preparation method of addition type liquid fluorinated silicone rubber. D3F, ViD4 and MM with the purity larger than 99.5% are adopted as raw materials and evenly mixed according to a certain ratio, and vinyl fluorosilicone oil is obtained; the vinyl fluorosilicone oil is used as base gum, a reinforcement agent, a cross-linking agent and a catalyst are added in the vinyl fluorosilicone oil, kneading, grinding, tabletting and other technologies are performed, and the liquid fluorinated silicone rubber (FSR) is obtained; the insulation performance, hydrophobic property, the high-temperature resistance and the like of the LSR are better than that of liquid silicone rubber (LSR) with the same technology and formula. The preparation method is short in production period, the product has the good heat tear resistance, demolding is convenient, various machining ways of mold pressing, extrusion, injection molding and the like can be achieved, and automatic production materials can be achieved.

The invention relates to an antibacterial corrosion-resistant ceramic coating of a non-stick pan and a preparation method of the coating, and belongs to the technical field of ceramic machining. The antibacterial corrosion-resistant ceramic coating comprises the components in parts by weight as follows: 35-40 parts of silicon oxide sol, 5-9 parts of aluminum oxide sol, 1-3 parts of zirconium oxide sol, 5-8 parts of a water soluble polyester modified epoxy resin, 1-3 parts of black iron oxide, 5-8 parts of spherical ceramic micro powder, 8-12 parts of absolute ethyl alcohol, 1-3 parts of silver nitrate, 1-3 parts of aluminum nitrate, 1-3 parts of and fluoride silicone oil and 10-15 parts of deionized water. The preparation method comprises the steps as follows: the materials are mixed according toin the ratio, stirred for 4-6 h in a sealing manner at a temperature of 35-42 DEG C and a rotating speed of 300-350 rpm (revolutions per minute), and then calcinated at a high temperature of 300-350 DEG C; and composite ceramic material powder is composited. The coating of the non-stick pan has good mechanical property, is high in strength, high-temperature-resistant, abrasion-resistant and scratch-resistant, and has an antibacterial function; and the preparation technology is simple, and the coating is non-toxic and harmless to the environment.

The invention relates to a method for synthesizing low molecular weight hydroxy-terminated fluorine silicon oil, which is characterized by comprising the following steps of: adding a certain amount of 3,3,3-trifluoropropylmethyl ring trisiloxane into three flasks, starting stirring, and then adding a certain amount of polar solvent, capping agent and catalyst into the flasks; slowly heating the mixture to between 50 and 80 DEG C till reflux appears, and maintaining the reaction till the reaction is complete; then cooling the mixture to room temperature, adding a certain amount of magnesium oxide and kieselguhr for filtration, and washing the filter cakes by using the same part of solvent; and transferring the filtrate to the three flasks, adjusting the temperature and pressure to evaporate the solvent, and then removing low-boiling substances to obtain a required product. The method has the advantages of simple and quick operation, economy, applicability, high yield, clarity, transparency and low viscosity of the obtained product and the like.

The invention discloses a base station antenna polyvinyl chloride (PVC) profile housing with a surface self-cleaning function. The mechanical properties of the PVC profile housing are improved, the ultraviolet light resistance is greatly increased; and moreover, the non-polarity of the surface energy of the profile is significantly increased, thus the surface water contact angle of the profile is significantly increased, the hydrophobicity is increased and the surface self-cleaning function can be achieved. The base station antenna PVC profile housing with the surface self-cleaning function is prepared from the following raw materials in parts by weight: 100 parts of PVC, 1-3 parts of organotin stabilizer, 5-10 parts of polyacrylate toughening agent, 1-3 parts of polyacrylate processing aid, 5-10 parts of titanium dioxide, 0-5 parts of calcium carbonate, 3-5 parts of calcium stearate, 0.3-1 part of polyethylene wax, 0.2-1.2 parts of silicone oil, 0.3-1.2 parts of fluorosilicone oil and 0.2-1 part of organic fluoride.

The invention relates to the technical field of hydrophobic and oleophobic coatings, and particularly discloses a hydrophobic and oleophobic coating composition and a preparation method thereof. The hydrophobic and oleophobic coating composition comprises the following components in parts by weight: 10-25 parts of methyl hydrogen-containing silicone oil; 5-15 parts by weight of hydroxyl-terminatedsilicone oil; 2-8 parts by weight of amino silicone oil; 0.1 to 2 parts by weight of perfluorosilicone oil; 3-10 parts by weight of organic solvent type silica sol; and 40-80 parts by weight of organic solvent. According to the invention, methyl hydrogen-containing silicone oil, hydroxyl-terminated polydimethylsiloxane and amino silicone oil undergo a condensation reaction to form a three-dimensional network structure, and perfluorosilicone oil is combined to further improve the oleophobic effect of the system; and by adding the solvent type silica sol, inorganic silicon oxide particles in the silica sol and organopolysiloxane are hybridized, and a uniform system is formed, so that the formed coating has excellent hydrophobic and oleophobic effects and good wear resistance, the product islow in production cost, long in shelf life, simple in preparation method and suitable for industrial production, and industrial production and wide application are facilitated.

The invention relates to a preparation method of perfluoropolyfluoroether fluorosilane with a plurality of hydrolytically-active end groups. The preparation method comprises the following steps: performing an addition reaction of vinyl-terminated perfluoropolyether and dialkoxyfluorosilane in the presence of a fluorine-containing solvent and a catalyst to obtain perfluoropolyether fluoroalkyl silane; performing a hydrolysis reaction on the perfluoropolyether fluoroalkyl silane to obtain a perfluoropolyether fluoroalkyl silane hydrolysate; reacting the perfluoropolyether fluoroalkyl silane hydrolysate with polyvinylsilicone oil in the presence of an alkali catalyst to obtain vinyl perfluoropolyether fluorosilicone oil; performing an addition reaction of the vinyl perfluoropolyether fluorosilicone oil and trialkoxyhydrosilane in the presence of a fluorine-containing solvent and a catalyst to obtain the perfluoropolyfluoroether fluorosilane. The preparation method has the advantages of adoption of readily-available raw materials and mild and safe process conditions; the defects that raw materials are difficult to obtain and are flammable and combustible in the prior art are overcome.

The invention discloses an organic fluorosilicone and metakaolin concrete waterproofing fortifier and a preparation method and application thereof. The organic fluorosilicone and metakaolin concrete waterproofing fortifier contains the following ingredients (by weight): 30-50% of metakaolin, 3-5% of alkali-soluble resin, 5-15% of an organic fluorosilicone hydrophobic component, 0.1-1.0% of an emulsifier, 0.5-1.0% of a pH regulator and 30-50% of water, wherein the metakaolin is made into metakaolin powder with an alkali-soluble protective adhesive film. By mixing the metakaolin powder with thealkali-soluble protective adhesive film into an organic fluorosilicone oil-in-water emulsion with pH value being neutral, the organic fluorosilicone and metakaolin concrete waterproofing fortifier isprepared. Concrete with the application of the organic fluorosilicone and metakaolin concrete waterproofing fortifier as an additive has the following advantages: water absorption is obviously reduced; chloride absorption reduction rate, sulfate corrosion resistance and freezing and thawing cycle resistance of the concrete are remarkably raised; and durability of the concrete is obviously enhanced.

The invention discloses a durable waterproof engineering coating, and is characterized in that the durable waterproof engineering coating is prepared from the following raw materials in parts by weight: 25-30 parts of an allylthiourea / 3-amino-3-(2-pyridine)acrylonitrile / 1-vinyl-1,2,4-triazole / titanium triisopropoxide methacrylate copolymer, 2-4 parts of epoxy modified 2,4,6-triphenylborazine, 20-30 parts of amino-terminated polyurethane, 1-4 parts of asphalt, 2-5 parts of vinyl-terminated fluorosilicone oil, 0.5-1.5 parts of a photoinitiator, 15-20 parts of a filler, 1-3 parts of a defoaming agent, 1-3 parts of a dispersing agent, 1-3 parts of an emulsifying agent and 20-30 parts of an organic solvent. The invention also provides a preparation method of the durable waterproof engineering coating. The durable waterproof engineering coating disclosed by the invention is remarkable in waterproof effect, good in comprehensive performance and excellent in weather resistance, mechanical property, heat resistance and wear resistance.