30results about How to "Solve the problem of easy reunion" patented technology

The invention discloses a mixed matrix membrane filled with beaded MOF silicone rubber. The preparation method of the mixed matrix membrane is as follows: firstly FeCl 3 and pyrrole were added to the aqueous solution of MO, and after stirring and reacting, PPy was obtained after washing and drying; then PPy was dispersed in the methanol solution, and the ligand was added to obtain the dispersion 1; after that, the methanol solution of 2-MeIm was added dropwise to the dispersion In 1, after stirring and reacting, MOF / PPy is obtained after washing and drying; then MOF / PPy is dispersed in a solvent, and then silicone rubber, cross-linking agent and catalyst are added, and after stirring and reacting, it is coated on a flat film, and the After standing and drying, the target product was obtained. The mixed matrix membrane of the present invention has excellent permeability and separation performance.

A method for preparing nano-ZnO-GO / waterborne polyurethane super-amphiphobic coating by spraying method, adopting the method of ultrasonic hydrothermal compounding, first modifying nano-zinc oxide by perfluorooctyl trichlorosilane, and then applying the modified nano- ZnO and GO were loaded to obtain a nano-ZnO-GO composite. A water-based polyurethane layer was prepared on the surface of the substrate, and then a low-surface-energy nano-ZnO-GO composite layer was constructed on the surface of the water-based polyurethane layer. After the coating was cured, its surface morphology and static contact angle. The invention reduces the surface energy of nano-zinc oxide, improves the hydrophobicity and oleophobicity of the surface of the nano-ZnO-GO composite layer after fluorination treatment, achieves a super-amphiphobic effect, and improves the stability of the coating. The invention has the advantages of low production cost, simple preparation method, low requirements on reaction equipment, mild reaction conditions, no environmental pollution and large-scale production.

The invention provides a cobalt-nickel oxide / tin dioxide composite nanotube as well as a preparation method and use thereof. The preparation method comprises the following steps: (1) preparing a spinning solution; (2) preparing precursor nanofiber by virtue of an electrostatic spinning; (3) carrying out high-temperature calcination on the precursor nanofiber so as to obtain a tin dioxide nanotube; (4) preparing a mixed solution, with a certain concentration, of nickel salt and cobalt salt; (5) adding the tin dioxide nanotube obtained in the step (3) into the mixed solution obtained in the step (4), adding a pH aid, carrying out solution codeposition reaction at a certain temperature, so as to obtain a cobalt-nickel oxide precursor-tin dioxide composite nanotube; and (6) carrying out temperature-control annealing treatment in a certain atmosphere, so as to convert the cobalt-nickel oxide precursor-tin dioxide composite nanotube obtained in the step (5) into the cobalt-nickel oxide / tin dioxide composite nanotube. The preparation method is simple in process and easy in operation, and adopted polymers and reagents are cheap and environment-friendly.