4results about How to "Improve electrostatic adsorption capacity" patented technology

The application discloses a composite flocculant based on aluminum chloride and a preparation method thereof, and belongs to the technical field of flocculant preparation, and is used for solving the technical problem that the stability and flocculation performance of the flocculant need to be further improved in the prior art; the branched polymer containing polycarboxyl groups is prepared by the reaction of tris(2-aminoethyl)amine and pyromellitic dianhydride, and the taurine groups are introduced to obtain the sulfobranched polycarboxyl polymer; the titanium phosphorus silicon aminopropyl composite is synthesized by using the sol-gel method, and the inorganic-organic network combination is realized; the polyimidazolium-hydroxy ether is obtained by the reaction of imidazole, epichlorohydrin and bisphenol A diglycidyl ether; the composite flocculant is formed by the reaction of the three under the acidic condition, the composite flocculant combines the polycarboxyl groups, the sulfonic acid groups, the imidazolium groups and the inorganic-organic skeleton, has high charge density, good adsorption and bridging performance, can rapidly form stable flocs, and can effectively remove the suspended particles and organic pollutants in water.

This invention provides a stabilizer composition and its preparation method. The stabilizer composition comprises, by mass percentage: 50%–99.9% alkane oil solvent, 0.01%–40% fatty acid salt compound, and 0.01%–20% modified fumed silica; wherein the modified fumed silica is fumed silica surface-treated with organohalosilanes. The stabilizer composition of this invention exhibits high dispersibility and low impurities, and can meet the stringent requirements of metallocene catalysts.

The invention discloses a filtering device of an intelligent extractor hood, the intelligent extractor hood and a control method, and the filtering device of the intelligent extractor hood is used for being arranged in an oil smoke channel of the extractor hood; the filtering device comprises an electret pre-charged filter screen and a filter element, the piezoelectric transducer assembly comprises a first piezoelectric transducer and a second piezoelectric transducer which are arranged on the two opposite sides in the oil smoke channel; the electret pre-charged filter screen and the piezoelectric transducer assembly are sequentially arranged from upstream to downstream along a lampblack flowing path.

The application discloses a kind of multilayer biomass cellulose adsorption materials and its preparation method and application, belong to biomass material and sewage treatment technical field.The application first obtains PEI-cellulose by polyethyleneimine modification to biomass cellulose;Then PEI-cellulose and chitosan are crosslinked to prepare surface layer adsorption liquid;While unmodified biomass cellulose and polyvinyl alcohol are mixed to prepare middle layer adsorption liquid;Finally, by layer liquid nitrogen freeze forming, freeze drying and alkali washing treatment, obtain the biomass cellulose adsorption material with sandwich multilayer structure.The multilayer adsorption material prepared by the application has positive electricity on outer layer, can be efficiently adsorbed by electrostatic effect in water with negative electricity micro / nano plastic;Middle layer is neutral, can be used to adsorb organic pollutants carried by micro / nano plastic.The material of the application is low in cost, simple in preparation process, fast in adsorption rate, high in removal rate and reusable, and has good application prospect in water treatment field.