35results about How to "Has a hydrophobic effect" patented technology

The invention relates to a method for preparing an enamel surface coating with hydrophobic effect. The method includes the following steps of: (1) cleaning an enamel substrate by using deionized water and drying the enamel substrate in a drier; (2) preparing sol by mixing Si(OC2H5)4, C2H5OH, H2O, HCl and DMF with the mol ratio of 1 to 2.5:2 to 5:3 to 8:0.1 to 0.4:1 to 4, stirring the mixture for 1-2h at the room temperature, and adding a hydrophobing agent to obtain the pH value ranging from 1 to 4; (3) seasoning the sol at the room temperature for 8-12 days; and (4) adopting a dip coating method to dip the enamel substrate in the step (1) in the sol and to vertically lift and pull the enamel substrate, and keeping the temperature of the enamel substrate at the temperature ranging from 60 DEG C to 200 DEG C for 5-20h, and obtaining the enamel surface coating after cooling. The material of the enamel surface coating with the hydrophobic effect has high combination strength, the contact angle can reach 140 degrees, the hydrophobic effect is good and can be kept for long time, the preparation method is simply and conveniently operated, and the production cost is low.

The invention discloses a composite nano coating and a preparation method thereof and relates to the field of coatings. The formula of the composite nano coating comprises raw materials and auxiliaries, the raw materials include an aqueous amino-acid resin, an aqueous epoxy resin, nano ion silver and nano fumed silica, and the auxiliaries include a parting agent, a flatting agent, a dispersing agent, an adhesive agent, an antifoaming agent, purified water and alcohol. The preparation method of the composite nano coating includes weighing water borne polyurethane and the aqueous epoxy resin based on requirements, mixing the water borne polyurethane and the aqueous epoxy resin to obtain a mixture, dispersing the mixture for 5-15 minutes by a high-speed dispersion machine, adding a certain amount of the nano ion silver, the parting agent, the flatting agent, the dispersing agent, the adhesive agent and the antifoaming agent, dispersing for 10-30 minutes, removing bubbles, adding the nano fumed silica and the parting agent, adding a certain amount of the water and the alcohol after the dispersion, fully dispersing for 30-50 minutes, and performing a nanoscale sanding. The composite nano coating has the advantages that the coating adhesive force and the thermal conductivity are high, and the coating is corrosion resistant and has a hydrophobic effect.

The invention discloses self-cleaning water-based finish-coat paint and a preparation method thereof, and belongs to the field of paint. The self-cleaning water-based finish-coat paint comprises deionized water, a special emulsion for a finish coat, a self-cleaning functional material, a multifunctional auxiliary agent, a dispersing agent, a filming aid, an antifoaming agent, an antifreezing agent, a preservative and a thickening agent. The special emulsion for the finish-coat is used as a main film forming matter and is matched with the modified nano titanium dioxide material to form a paintfilm surface layer and a hydrophobic inner layer with a hydrophobic effect, so that the finish-coat paint for the outer wall has relatively high pollution resistance. The finish-coat paint has good air permeability and waterproofness, the situation that the exterior of a building is damp and the interior of the building is wet is effectively avoided, under the natural condition, the finish-coat paint can achieve the self-cleaning effect through rain wash, and a good environment is provided for living of people. Meanwhile, the production process of the self-cleaning water-based finish-coat paint is simple and efficient.

The invention discloses a method for improving the water resistance of putty, which comprises the following steps: (1) Add modifier I to the mixed putty and stir rapidly for 2-3 minutes; wherein, the modifier I is tea Alkali; (2) add modifier II, stir rapidly for 0.5-1.5min and then slowly stir for 3-5min; wherein, the modifier II is a secondary amine; (3) after standing for 2-3min be usable. The putty prepared by the invention has better water resistance, and the added theophylline is an alkaloid, which interacts with the putty to have a hydrophobic effect, and can play a stabilizing effect through the subsequent action of a modifier.

The invention discloses a glazing oil and a preparation method thereof, and relates to the technical field of printing; the glazing oil comprises the following components in parts by weight: comonomer: 1105-1578 parts; water: 1108-1568 parts; emulsifier: 80‑138 parts; sodium hydroxide: 104‑151 parts; initiator: 94‑121 parts. Among them, comonomers include methyl methacrylate, butyl acrylate, acrylic acid, acrylonitrile, and hydroxyethyl acrylate; emulsifiers include polyethylene glycol monomethyl ether methacrylate and / or p-styrenesulfonic acid sodium. The glazing oil is prepared through the following steps: S1, take the copolymerization unit, sodium hydroxide, emulsifier and water of the corresponding parts by weight, heat and dissolve, and mix uniformly to obtain the seed emulsion; S2, take the initiator of the corresponding parts by weight Add it into the seed emulsion and mix evenly to obtain an emulsion polymer. The invention has the advantage of improving the leveling property of the glazing oil.

The invention relates to a method for preparing an enamel surface coating with hydrophobic effect. The method includes the following steps of: (1) cleaning an enamel substrate by using deionized water and drying the enamel substrate in a drier; (2) preparing sol by mixing Si(OC2H5)4, C2H5OH, H2O, HCl and DMF with the mol ratio of 1 to 2.5:2 to 5:3 to 8:0.1 to 0.4:1 to 4, stirring the mixture for 1-2h at the room temperature, and adding a hydrophobing agent to obtain the pH value ranging from 1 to 4; (3) seasoning the sol at the room temperature for 8-12 days; and (4) adopting a dip coating method to dip the enamel substrate in the step (1) in the sol and to vertically lift and pull the enamel substrate, and keeping the temperature of the enamel substrate at the temperature ranging from 60 DEG C to 200 DEG C for 5-20h, and obtaining the enamel surface coating after cooling. The material of the enamel surface coating with the hydrophobic effect has high combination strength, the contact angle can reach 140 degrees, the hydrophobic effect is good and can be kept for long time, the preparation method is simply and conveniently operated, and the production cost is low.

The invention relates to the field of resourceful treatment of building wastes, and particularly discloses a hydrophobic recycled aggregate ecological drainage brick and a preparation method thereof. The hydrophobic recycled aggregate ecological drainage brick comprises a bottom material layer, a surface material layer and a hydrophobic coating which are sequentially arranged, the hydrophobic coating comprises primer and finishing paint, and the primer is prepared from raw materials including epoxy resin, a curing agent and ethyl alcohol; and the finishing paint is prepared from the following raw materials in parts by weight: silicon carbide, hydrophobic nano silicon dioxide, tackifying resin, a stabilizer and ethanol. The preparation method comprises the following steps: S1, compacting the bottom material layer and the surface material layer, and maintaining; S2, stirring the raw materials of the primer and raw materials of the finishing paint respectively; and S3, spraying primer on the surface material layer, curing at room temperature, spraying finish paint on the basis of the primer after curing, and standing to form a hydrophobic coating, thereby obtaining the hydrophobic ecological drainage brick. The hydrophobic recycled aggregate ecological drainage brick has the advantage that the drainage effect of the drainage brick is improved.

The invention discloses a polypropylene material easy to clean. The invention relates to a material. The material is composed of polypropylene A, polypropylene B, polypropylene C, a flame retardant, ahydrophilic agent, talcum powder, an antioxidant, titanium dioxide, black powder, titanium yellow and iron gray. The material has a certain hydrophobic effect; and in the actual use process of the material, stains or dirt can be effectively prevented from contaminating the material, cleanliness of the material can be guaranteed, an attractive effect can be achieved, and much convenience is brought to users.

The invention discloses a metal-carbon dioxide battery, comprising a positive electrode, a negative electrode, an organic electrolyte and a diaphragm, and the positive electrode has a hierarchical structure of IrO 2 / MnO 2 Composite electrodes, including flake-like MnO grown directly on substrates 2 , the flake MnO 2 The surface is also covered with banded MnO 2 , also including nano-IrO 2 particles, the nano-IrO 2 Particles uniformly loaded on flake MnO 2 and banded MnO 2 surface; the negative electrode is selected from alkali metal electrodes treated with surface protection. The invention discloses a metal-carbon dioxide battery, with hierarchical structure of IrO 2 / MnO 2 The composite electrode is the positive electrode, and the surface-protected alkali metal electrode is the negative electrode. The greenhouse gas carbon dioxide is used to generate electricity. The assembled metal-carbon dioxide battery shows low polarization, high capacity and long cycle life.