84results about How to "Good material compatibility" patented technology

The liquid composition is based on surfactants and enzymes, and is particularly useful for manual cleaning of instruments. In manual and ultrasonic application the composition in use concentration shows low foaming and gives a cleaning solution which is not cloudy at least at a temperature in the range from 16° C. to 40° C. In addition, the composition has good cleaning efficiacy over a broad temperature range (20 to 55° C.) and shows good material compatibility.

The invention relates to catalyst preparation, and aims to provide a preparation method of catalysts for oxygen production implemented through the decomposition of hydrogen peroxide. The method comprises the following steps of: immersing a nickel-foam solid sample into a silver nitrate solution, heating the obtained object, carrying out a replacement reaction, and cooling the obtained product to room temperature; taking an alkaline sodium borohydride solution, reducing nickel ions in the previous solution to metal nickel and depositing the metal nickel to the solid sample; and taking out the solid sample, calcinating the solid sample for 2-5 hours under nitrogen so as to obtain a silver catalyst taking nickel foam as a carrier. According to the invention, micropores of nickel foam are used as oxygen transport channels, so that the service life of the catalyst is greatly prolonged. Meanwhile, because the structure compatibility of nickel and silver is excellent, and silver atoms are dissolved in the crystal structure of nickel so as to form a solid solution, so that the mechanical strength of nickel foam can be enhanced, and the capability of a carrier to resist shock waves produced by the generation of oxygen is increased, thereby greatly improving the stability and reliability of catalysts.

A single phase alkaline composition comprising by weight about 10 to about 25 percent of nonionic surfactant blend comprising a ratio of between about 1:1 to about 1:2 of alcohol ethoxylate:fatty alcohol alkoxylate, about 3-10% of at least one water soluble solvent, about 1-10% of a chelant, 2-12% of an alkalinity source, 0.5-2% of an anionic surfactant blend comprised of at least about 40-70% of a sulfosuccinate, the balance being water. Compositions of the invention are useful for re-moving hydrophobic soils or oils whether they are located on a hard surface or on a linen. A method of cleaning a hard surface is also disclosed comprising the steps of diluting the composition of the invention with water to about 1 to about 3 weight percent, applying the diluted composition to the surface, and wiping the surface, wherein the surface is substantially free of oil or residue and the surface is substantially free of corrosion.

A dosing pump for a liquid additive in the fuel of a heavy fuel engine. The pump includes a piston, a cylinder and an actuator for moving the piston axially in the cylinder. The actuator is a high resolution linear actuator.

The invention discloses a FLiNaK fused salt and a preparation method, a reactor and a preparation device thereof. The contents of oxygen, sulfur, chlorine, silicon, nickel, iron, calcium, aluminum, barium, chromium, cobalt, cadmium, manganese, magnesium, copper, phosphorus, lead, zinc, vanadium, titanium, molybdenum, tungsten, zirconium, strontium, and stannum in the FLiNaK fused salt is lower than 0.01%, and the total content of impurity elements is not more than 0.1%; and the mass ratio of LiF, NaF and KF is 29.3:11.7:59.0. The preparation method includes mixing and drying; (2) heating and melting; (3) performing bubbling treatment with hydrogen for more than 8 hours at the temperature of 500-600 DEG C; (4) performing the bubbling treatment on the mixture gas of hydrogen fluoride and hydrogen with the ratio of 1:(4-9) for more than 36 hours at the temperature of 500-550 DEG C; and (5) performing retreatment with hydrogen. The FLiNaK fused salt has excellent material compatibility with Hastelloy N, GH3535 and SUS316Ti alloy.

An air filter system of a motor vehicle has an air filter housing with a housing part of a moisture-sensitive plastic material and an air passage section with a circumferentially extending passage wall, wherein the passage wall of the air passage section is integrally formed of identical material on the housing part of the air filter housing. A mass air flow sensor is arranged in the air passage section. A plastic insert of a moisture-insensitive plastic material is disposed on an inner side of the passage wall of the air passage section and lines the passage wall.

Low foaming, highly acidic peroxycarboxylic acid sanitizing compositions are disclosed as having both improved antimicrobial efficacy in comparison to conventional peroxyoctanoic acid and peroxyacetic acid compositions for sanitizing applications. The compositions include a combination of a low-foaming surfactant and an aluminum sulfate (or other metal salt) defoaming agent that is compatible with the highly acidic peroxycarboxylic acid sanitizing compositions. In particular, the sanitizing peroxycarboxylic acid compositions are also low odor and low/no VOC dual functioning acid wash and sanitizing compositions.

The invention discloses an immersed liquid phase change cooling medium and application thereof in a cooling system of electronic equipment, wherein the cooling medium is a mixture formed by mixing one, two or three of perfluoro-4-methyl-2-pentene, a hexafluoropropylene tripolymer, perfluorohexanone, perfluoroheptane, perfluorooctane, perfluoro-2-methyl-2, 3-epoxy pentane, perfluorohexane and perfluoropentane. The immersed phase change cooling medium provided by the invention has the characteristics of high electrical insulation property, low viscosity, relatively low boiling point, high gasification latent heat, good compatibility and stability, incombustibility, combustion inhibition, low global warming potential (GWP), zero ozone depletion potential (ODP) and the like.

The invention relates to a deicing and anti-icing fluid, particularly a non-Newtonian fuselage deicing and anti-icing fluid and a preparation method thereof. The non-Newtonian fuselage deicing and anti-icing fluid can reduce adhesion of ice on the object surface to eliminate and prevent icing on the aircraft fuselage surface, and has superlong anti-icing retention time. The non-Newtonian fuselage deicing and anti-icing fluid comprises the following components in parts by mass: 40-60 parts of freezing-point depressant, 0.05-1.2 parts of rheologic modifier, 0.01-0.3 part of anti-icing compounding agent, 0.01-3 parts of pH regulator, 0.01-3 parts of corrosion inhibitor, 0.01-0.5 part of staining agent and 40-60 parts of deionized water. The invention is based on the low-temperature rheologic research, especially aims at the low-temperature operating environment and characteristics of the deicing and anti-icing fluid, and determines the distribution and arrangement of the main chain and branch chain of the rheologic modifier as well as the preparation and acquisition method of the low-temperature conformation. By combining the anti-icing compounding agent, corrosion inhibitor and other assistants in the formula, the prepared deicing and anti-icing fluid has the characteristics of excellent shearing restorability, excellent ice adhesion inhibition capacity at 0 to -20 DEG C, and long anti-icing time.

A thermal ink jet ink composition include a volatile organic solvent, a binder resin, a dye, a humectant in an amount from 1% to 40% by weight of the ink composition, and an additive for extending the decap time. The additive is present in an amount greater than 0.1% by weight of the thermal ink jet ink composition. The additive is selected from fluorinated surfactants, ionic surfactants, and nonionic surfactants.

The invention discloses a circulation method for preparing expanded cut tobacco, comprising the following steps: (1) putting cut tobacco into a preheated impregnating tank, then carrying out vacuum-pumping; (2) spraying liquid expanding agent to the cut tobacco; (3) filling gas expanding agent to the impregnating tank; (4) impregnating; (5) first, recycling the liquid expanding agent, then recycling the gas expanding agent; and (6) expanding the impregnated cut tobacco, and carrying out operations in step (2) or/and step (3) by the liquid expanding agent and the gas expanding agent recycled in step (5). The method of the invention has mild condition and greatly reduced requirement for devices, by fully recycling the expanding agents, the cost is lowered, the complete set of devices has low energy consumption and high automation, continuous mass production can be carried out, all performance indexes of the obtained expanded cut tobacco are high, the expanded efficiency of the cut tobacco is high, and the recycling rate of the expanding agents is high.

The invention provides a method of constructing graphical magnetic micro-nano structures through laser beam direct writing, wherein the method includes the following processes: (1) at least spreading more than one layers of magnetic material particles on a surface of a substrate, and then applying a controllable magnetic field so that the magnetic material particles are arranged orderly according to magnetic lines on the magnetic field on the surface of the substrate; (2) by means of the laser beam entering from one side of the back side of the substrate to scan the substrate, wherein the position irradiated by the laser beam absorbs laser energy so that the position is subjected to rapid temperature increasing, so that the irradiated position on the back side of the substrate is free of being molten or subjected to thin-layer melted while the parts on the magnetic material particles on the front side of the substrate is partially melted, and finally cooling the substrate to achieve welding between the magnetic material particles to the substrate; and (3) repeatedly doing the step (1) and the step (2) to prepare the micro-nano structure being multilayered, being different in size and being order. The method is used for preparing the graphical magnetic micro-nano structure, wherein the size and the shape of the micro-nano structure are controlled, so that super-hydrophobic property, electromagnetic wave absorption and reflection characters of the surface can be adjusted and controlled.

The invention discloses a preparation method of a heat-conducting, high-temperature-resistant and durable lubricant. The preparation method comprises the following steps: carrying out addition melting copolymerization on 1-cyanobenzocyclobutene and a paraphthaloyl chloride monomer to form a prepolymer, preparing a borosiloxane ferrocene prepolymer from dimethylchlorosilane and dicyclopentadiene, and reasonably matching the components to obtain the heat-conducting, high-temperature-resistant and durable lubricant; in addition, a plurality of inorganic components, a clean dispersing agent, an antioxidant and polyadamantane-1,3-diformyl-m-phenylenediamine are compounded for blending modification; therefore, the lubricant has a synergistic lubricating effect and excellent lubricating performance, the lubricating performance reaches or exceeds the same level of a graphite type product, and the lubricant is excellent in miscellaneous oil resistance and long in service life. The lubricant is green and environment-friendly, and is a high-performance environment-friendly hot forging working fluid. The lubricant has the advantages of low raw material consumption, low pollution, long effective lubricating time, low labor intensity, long service life of equipment parts and high temperature resistance.

The present invention relates to a high fire retardation type polyurethane thermal-insulation plate and a preparation method thereof. The raw materials in the formula of the high fire retardation type polyurethane thermal-insulation plate comprise 1) diphenyl methane diisocyanate and 2) combined polyether polyol, wherein the raw materials in the formula of the combined polyether polyol comprise polyether polyol, fire retardation polyether polyol, dimethyl silicon oil, triethanolamine, a catalyst, a fire retardation agent and a foaming agent. The high fire retardation type polyurethane thermal-insulation plate has the excellent fire retardation performance, wherein the fire retardation grade achieves the B1 grade.

The invention discloses an immersed phase change cooling medium and application thereof in a cooling system of an electronic device. The cooling medium is one or a mixture of two or more of perfluoro-4-methyl-2-pentene, perfluoro-2-methyl-3-pentanone, perfluoro-2-methyl-2, 3-epoxypentane and perfluorohexanone. The immersed phase-change cooling medium provided by the invention has the characteristics of high electrical insulation property, low viscosity, lower boiling point, high gasification latent heat, good compatibility and stability, incombustibility, combustion inhibition, low global warming potential (GWP), zero ozone consumption potential (ODP) and the like.

The invention provides a method for preparing an anti-crack log veneer. The method comprises the following steps: (1) cutting and peeling off log, placing the cut and peeled log in a cool and ventilate place, performing drying till the water content is 50-60%; (2) brushing two ends of the log with an anti-crack end-capping adhesive, performing curing at the room temperature, and performing rotary-cutting or slicing to obtain the log veneer. The anti-crack end-capping adhesive consists of a component A and a component B, wherein the component A comprises the following ingredients in parts by weight: 20-30 parts of active-hydrogen-containing resin, 3-8 parts of hydroxymethyl cellulose, 1-3 parts of an emulsifier, 1-3 parts of a defoamer, 5-10 parts of montmorillonite and 25-35 parts of ethyl acetate; the component B comprises the following components in parts by weight: 15-25 parts of isocyanate, 5-12 parts of modified rosin and 20-30 parts of ethyl acetate. The method for preparing the anti-crack log veneer is convenient to operate, the veneer has a good breakage prevention effect, the end-capping adhesive is high in bonding strength and low in probability of stripping, and meanwhile, the infested rate can be effectively reduced.