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A surfactant and composition technology, applied in the field of surfactant composition, can solve the problems of poor insecticidal effect, slow spreading and wetting speed, etc.
Inactive Publication Date: 2017-03-15
余姚市楷瑞电子有限公司
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In agriculture, traditional pesticides use non-silicon surfactants, which are sprayed on plants, and the spreading
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[0028] Embodiments for carrying out the present invention will be described below. However, the scope of the present invention is not limited to the above-described embodiments, and various changes can be made to the present invention as long as the gist is not impaired.
[0029] Preparation of Amino Polyether Silicone
[0030] In a 250mL three-necked flask equipped with a nitrogen device and a reflux condenser, add epoxy silicone oil and polyetheramine M-600 with a molar ratio of amino groups and epoxy groups of 1:1, ethanol as a solvent, and W (ethanol) It is 25%-30%, heated to 60°C, 2h-3h, then discharged, and the solvent was distilled off under reduced pressure to obtain a light yellow transparent viscous liquid, which was dried overnight at 60°C in a vacuum oven, and the reaction was calculated by measuring the epoxy value Conversion rate. The product obtained by nucleophilic ring-opening addition of polyetheramine and epoxy-terminated silicone oil is designated as E-M-...
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Abstract
The invention provides a surfactant composition comprising amino polyether organosilicone, silicon paste, an emulsifier, a thickener and water, wherein relative to each 25 g of the surfactant composition, the amount of the amino polyether organosilicone is 2-4 g, the amount of the silicon paste is 2-3 g, the amount of the emulsifier is 0.1-2 g, the amount of the thickener is 0.05-0.5 g, and the amount of water is 16-20 g; the silicon paste is prepared from gas-phase silica and dimethyl silicone oil, the amount of the fumed silica is 1-9 g/100 g silicon paste, and the amount of the dimethyl silicone oil is 91-99 g/100 g. The surfactant composition can be used as a defoaming agent; through thermal stability testing, the surfactant composition has no emulsion breaking and oil floating, and has the property of acid and alkali resistance.
Description
technical field [0001] The invention relates to the field of detergents, more specifically to a surfactant composition with defoaming effect. Background technique [0002] In industrial production processes, excessive foam can cause serious problems, such as paper production, food processing, fabric dyeing and finishing, pharmaceutical food fermentation, sewage treatment and crude oil processing, etc. Therefore defoamers are widely used to eliminate unwanted foam. For some commercial products, such as mineral flotation agents, machine detergents, coatings, anti-indigestion and flatulence drugs, defoamers are essential additives. Typical defoamers include oils, hydrophobic solid particles and their mixtures. Oils include mineral oil, silicone oil, fatty alcohols, fatty acids, alkylamines, alkylamides, tributyl phosphate, thioethers. Hydrophobic solid particles include inorganic particles (such as SiO 2 、Al 2 o 3 、TiO 2 , paraffin (such as magnesium stearate), polymers ...
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