35results about How to "Excellent foam suppression" patented technology

The invention relates to an extraction method based on a waterhyacinth surface active agent substance. The extraction method comprises the following steps of: mashing waterhyacinth leaves, stems or stem leaves, adding an ethanol solution, leaching for 4-8 hours at 30-50 DEG C, filtering, repeating for 1-3 times to obtain a filtered solution, and carrying out concentration. The method is simple and convenient and is easy to implement, the operation is easy, the pollution is free, and a raw material is from a reproducible biomass resource. The natural active substance extracted by the method provided by the invention can notably reduce a surface tension effect, the natural active substance can serve as a foam suppressor and has the good foam repressing property and the defoaming property, and the natural active substance also can serve as a dispersant agent with superior performance after being compounded with a general surface active agent.

The invention discloses a defoamer containing silicone oil and epoxidized soybean oil. The defoamer has excellent defoaming, foam inhibition and anti-shearing performances. The defoamer containing silicone oil and epoxidized soybean oil, taking 100 parts as a baseline, comprises the following components in parts by mass: 5 to 15 parts of compound silicone oil, 5 to 15 parts of epoxidized soybean oil, 2 to 10 parts of polyether, 1 to 6 parts of fatty alcohol-polyoxyethylene ether, 1 to 6 parts of sorbitan tristearate, 1 to 8 parts of polyoxyethylene sorbitan fatty acid ester, 2 to 5 parts of glycerinum, 0.1 to 2 parts of glycerin monostearate and the balance of deionized water.

The invention discloses a scrubbing-resistant anti-microbial inner wall emulsion paint. The emulsion paint comprises raw materials: modified PVA, methyl methacrylate, polymethyl methacrylate, light calcium carbonate, talcum powder, lithopone, calcined kaolin, hydroxyethyl cellulose, a dispersant SN-5040, a dispersant SN-5027, a multifunctional auxiliary agent AMP-95, 2,2,4-Trimethyl-1,3-pentanediol monoisobutyrate, an antifoaming agent NXZ, negative ion-anti-microbial additives, sodium polyphosphate, a flatting agent, a nano stain-resistant agent NZM-1, propylene glycol, 5-chloro-2-methyl-4- isothiazolin-3-ketone and deionized water. The inner wall emulsion paint is not easy to generate powder, has good scrubbing resistance and stain resistance, is safe and environmentally friendly, and has a long anti-microbial validity period.

A refractory organic silicon emulsion as defoamer is prepared from the modified siloxane with 0.5-2 pa.s viscosity and the mixed emulsifier containing at least one organic acid, alcohol, or amine through proportional mixing, adding water and emulsifying.

The invention discloses a compound-type de-foaming agent. The compound-type de-foaming agent comprises the following raw materials in percentage by mass: 1-20 percent of modified silicon polyether, 5-70 percent of polyether modified siloxane, 3-50 percent of an emulsifying agent, 10-20 percent of polyethylene glycol, 1-10 percent of fatty alcohol and 2-15 percent of triglyceride. The compound-type de-foaming agent has the advantages of stable performance, high de-foaming speed and long foam inhibition time, does not poison sewage microorganisms, does not change the COD (chemical oxygen demand) and BOD (biochemical oxygen demand) of sewage, and is applicable to wastewater treatment of enterprises of papermaking, printing-dyeing, sugar refinery, pharmacy and leather.

The invention discloses a composite glass clarifying agent, which belongs to the field of the glass production. The composite glass clarifying agent is prepared from the raw materials such as acrylamide and sodium dimethyl diacrylamide sulfonate and can be slowly expanded after being heated, and can form a wrapping and supporting effect for a netted structure formed by silicate and SiO2 in a glasssystem, polymer microspheres comprise partial gas in the preparation process, in the application process, the partial gas overflows rapidly, so that the dispersity is good, and a better bubble inhibition and removal effect can be achieved; and polyether is introduced into the organic silicon, no only can the hydrophilic group but also the oleophylic group be provided, by introducing the paraffinand microcrystalline paraffin, a long-chain aliphatic compound can be introduced, the silicon tetrahydride can be rapidly hydrolyzed into orthosilicic acid and hydrogen under an alkaline condition, generation of other bubbles can be prevented, the secondary bubbles can be further prevented, and a better bubble eliminating effect can be achieved. By adopting the composite glass clarifying agent, the problem that the conventional glass clarifying agent is poor in bubble removal efficiency.

The invention discloses an organic silicon defoaming agent with an anti-cracking function. The defoaming agent is prepared from, by weight, 40-70 parts of simethicone, 20-30 parts of silicon dioxide, 10-20 parts of water, 1-2 parts of acrylic acid emulsion, 0.3-0.5 part of potassium iodide, 0.2-0.4 part of prenyl alcohol, 0.5-1 part of oxidized polyethlene wax, 0.3-0.5 part of kerosene, 0.4-0.8 part of tributyl citrate, 2-4 parts of calcium stearate, 0.4-0.8 part of nonylphenol polyoxyethylene ether, 2-4 parts of bentonite, 1-2 parts of stearamide, 1-2 parts of fatty acid and 0.2-0.4 part of butyl stearate.

The invention relates to finishing liquid for a hot-galvanized plate and a preparation method for the finishing liquid. The finishing liquid comprises a component I and a component II, wherein the component I comprises following ingredients in parts by weight: 23-33 parts of water, 5-8 parts of dibasic acid, 8-12 parts of tricarboxylic acid and 54-57 parts of triethanolamine; the component II comprises following ingredients in parts by weight: 47-68 parts of water, 4-8 parts of sodium carbonate, 3-5 parts of potassium hydroxide, 2-4 parts of disodium ethylenediamine tetraacetate, 6-10 parts of sodium metasilicate pentahydrate, 8-12 parts of reverse block polyether, 6-8 parts of neodecanoic acid and 3-6 parts of sodium benzoate. The finishing liquid has relatively good rust-proof and lubricating effects, has excellent wetting and cleaning properties and relatively high cleaning ability, and can lubricate and repair the surface of a roll; the finished galvanized plate is smooth in surface, and defects of finishing spots and coating moire can be effectively eliminated or reduced; the finishing liquid has good foam-inhibiting and defoaming functions, so that liquid can be avoided from remaining on the surfaces of the roll and a steel plate and the foam can be avoided from overflowing around to affect the working environment.

The invention discloses oxidation-resisting lubricating oil for civil use, which is prepared from the following components in parts by weight: 10 to 30 parts of vegetable oil, 10 to 12 parts of triethanolamine oleate, 5 to 10 parts of alpha-olefin polymer, 10 to 15 parts of polypropylene glycol adipate, 5 to 10 parts of dipropylene glycol dibenzoate, 3 to 6 parts of chlorinated paraffin, 2 to 10 parts of organosiloxane, 3 to 8 parts of boric acid, 3 to 6 parts of anticreaming agent, 5 to 10 parts of triethanolamine, 1.5 to 7.5 parts of organic molybdenum, 3 to 6 parts of alkyl diphenylamine, and 0.3 to 2.5 parts of additive. The invention provides the oxidation-resisting lubricating oil for the civil use and a preparation method thereof, wherein the lubricating oil is excellent in anti-rust property, antioxidant resistance and abrasion resistance, has good foam inhibition and defoaming properties and good chemical inertness, and cannot have chemical reaction with defoamed medium under different pH values and different temperatures.

The invention discloses silicon-modified polyether, and a preparation method and application thereof. The silicon-modified polyether has number-average molecular weight of 200 to 2000 g/mol. In the formula, which is described in the specification, of the silicon-modified polyether, R is a straight-chain or branched-chain C6-18 alkyl group; R' is a straight-chain or branched-chain C1-10 alkylene group or a C6-10 arylene group; m is in a range of 1 to 20; n is in a range of 0 to 20; and m and n are both integers. The preparation method is simple; the prepared silicon-modified polyether is easilydissolvable in water, rapid in penetration, low in foaming and excellent in foam inhibition and defoaming, can be stably stored in an environment with a pH value of 5.0 to 9.0 for a long time, and isapplicable to preparation of pre-treatment agents for a variety of fabrics; and the silicon-modified polyether is also applicable as a penetrating agent to fields like textiles, papermaking, printingink and pesticides, or as a low-foam surfactant to fields like household cleaning and industrial cleaning.

The invention discloses a disposable PVC glove and a production process thereof. The disposable PVC glove comprises water-based PVC paste resin, an anti-radiation material, an environment-friendly plasticizer, an environment-friendly antioxidant, a defoaming agent, a heat stabilizer, an ultraviolet light absorber and an emulsifier. The disposable PVC glove is simple in formula, simple in process, extremely low in energy consumption and low in production cost. The disposable PVC glove not only has softness and plasticity, but also has appropriate elastic performance, the used water-based PVC paste resin does not need to be treated and can be directly used, the anti-radiation material has a good attenuation effect on X-ray radiation, the added defoaming agent has the advantages of high defoaming speed, good foam inhibition and prevention of generation of bubbles in the stirring process, and the toner has good color performance, heat resistance and dispersibility.