8results about How to "Low ice adhesion" patented technology

The invention discloses a preparation method of a long-acting interface lubricating coating, which comprises the following steps: (1) adding 5-7 parts by mass of nano sol, 4-6 parts by mass of micron porous powder, 1.0-1.2 parts by mass of low surface energy substance and 4-6 parts by mass of ammonia water into 80-120 parts by mass of ethanol, and stirring under a water bath heating condition to obtain a modified micron particle suspension, the suspension liquid is dried into powder at high temperature, and modified porous powder is obtained; (2) fully mixing 0.8-1.2 parts by mass of the modified porous powder and 3-5 parts by mass of silicone oil, putting the mixture into a vacuum pump to vacuumize so that the silicone oil can enter the modified porous powder, and after the vacuum state is removed, separating redundant silicone oil to obtain porous powder containing silicone oil; (3) carrying out hole sealing treatment on the porous powder containing the silicone oil, drying at a high temperature, and then mixing with the silicone oil to obtain a mixed solution of the hole sealing powder and the silicone oil; and (4) firstly adding 2.5-4 parts by mass of resin into 2-5 parts by mass of a diluent, then adding 0.5-0.6 part by mass of a silane coupling agent, then adding 0.5-0.8 part by mass of the mixed solution obtained in the step (3), finally adding 0.75-1.2 parts by mass of a curing agent, uniformly mixing, brushing or spraying onto a substrate, and airing to obtain the interface lubricating coating.

The invention discloses organic silicon modified fluorocarbon resin with antifouling property, an antifouling coating thereof, a composite coating and a preparation method and application of the organic silicon modified fluorocarbon resin. The organic silicon modified fluorocarbon resin is prepared by carrying out condensation polymerization on diisocyanate, fluorocarbon resin, monohydroxyl-terminated polydimethylsiloxane and a catalyst in an organic solvent. Coating a substrate with the organic silicon modified fluorocarbon resin obtained after the reaction, and curing to obtain an organic silicon modified fluorocarbon resin coating; the component A and the component B are mixed to generate the composite coating containing the organic silicon modified fluorocarbon resin as a main component. The organic silicon modified fluorocarbon resin disclosed by the invention has the characteristics of low surface energy, strong anti-fouling adhesion capacity, good hydrophobicity, small friction coefficient, good mechanical toughness and small ice adhesion strength.

The invention provides a composition, an ionic gel coating and a preparation method and application thereof, the composition contains fluorine-containing polyamide acid, ionic liquid, a surfactant and an additive, and the mass ratio of the fluorine-containing polyamide acid to the ionic liquid to the surfactant to the additive is (20-60): (1.5-27): 1: (40-60). According to the composition disclosed by the invention, the ionic liquid with low condensation point, non-volatility and chemical stability is locked in the fluorine-containing polyimide with high and low temperature resistance and excellent mechanical properties, and the surface active agent and the additive are coupled with the fluorine-containing polyimide, so that the whole material has relatively high hydrophobicity and transparency; and meanwhile, the coating has multiple functions of room-temperature self-repairing, self-cleaning and the like, has relatively high binding force with the surface of a base material such as stainless steel and the like, and can reduce the ice adhesion strength of the surface to a great extent and improve the robustness of the low ice adhesion performance of the material in an extremely low-temperature environment.

A method for preparing a one-component polyurea anti-icing coating and a method for using the same belong to the field of anti-icing coatings. The present invention aims to solve the problem that existing polyurea coatings cannot delay the freezing time and reduce the ice adhesion strength, and to solve the problem that two-component system coatings need to mix the two components before construction. Methods: 1. Synthesis of silicon-containing prepolymers; 2. Synthesis of silicon-modified latent curing agents; 3. Preparation of one-component polyurea anti-icing coatings. The present invention is used for the preparation and use of one-component polyurea anti-icing coatings.

The application discloses a preparation method of a polyurea photo-thermal anti-icing coating and belongs to the technical field of photo-thermal anti-icing. The application is based on silica / polyurea composite particles and carbon materials, and super-hydrophobicity and relatively high photo-thermal conversion efficiency are obtained. The method is characterized in that silica nanoparticles are combined into polyurea molecules to form silica / polyurea composite particles; then the composite particles are combined with graphite microparticles and uniformly dispersed in polysiloxane, and a super-hydrophobic photo-thermal coating with excellent wear resistance and durability is developed. The coating surface has high photo-thermal conversion efficiency, can obviously increase temperature under the irradiation of sunlight, can delay the icing time and reduce the ice adhesion strength, and thus better anti-icing and de-icing effects are achieved.

The invention relates to the technical field of material processing, and discloses a rubber coating with passive anti-icing and deicing functions for electrical equipment, the rubber coating comprises a component A and a component B, the modulus ratio of the component A to the component B is greater than 10, the two components comprise 20-60% of a rubber material, 0-70% of a solvent, 5-10% of an inorganic filler and 5-30% of a lubricant, wherein the component A and the component B contain different organic silica gels with the same volume but the modulus ratio of 100, and during use, the component A and the component B are mixed according to the volume ratio of 1: 1 on site, uniformly stirred and then sprayed to the surface of a base material. The anti-icing agent can repel supercooled water drops from gathering on the surface of a base material, can play an anti-icing effect at the early stage of icing, can play an excellent passive deicing effect after icing, and can be easily and strongly combined with the surface of the electric power base material to realize long-term durability; the manufacturing method is simple, the using method is also simple, and high popularization value and application prospects are achieved.

The present application proposes an anti-icing coating with both photothermal and electrothermal properties, and its preparation method and application, wherein the preparation method of the anti-icing coating includes: modifying expandable graphite with a first conductive organic monomer, and then performing a first dispersion to obtain a colloidal liquid; electroplating a porous template with the colloidal liquid as an electrolyte, and then etching away the porous template to obtain a conductive network; modifying expandable microspheres with a second conductive organic monomer, and then performing a second dispersion in a high-temperature curing resin to obtain a dispersion; placing the conductive network on the surface of the substrate, and distributing the dispersion on the conductive grid and the substrate, and then heating and expanding, heating and shrinking, and cooling in sequence to obtain a three-dimensional porous coating; distributing an oily liquid on the surface and inside of the three-dimensional porous coating to obtain an anti-icing coating. The preparation method of the anti-icing coating of the present application can obtain a three-dimensional porous oleophilic anti-icing coating with excellent photothermal and electrothermal properties.

The invention discloses a photo-thermal anti-icing and deicing super-hydrophobic coating with a three-dimensional network structure and a preparation method thereof.The preparation method comprises the steps that firstly, dopamine is adopted to react with two kinds of Fe3O4 with different particle sizes, core-shell structure particles with Fe3O4 coated with polydopamine are obtained, and the core-shell structure particles are n-Fe3O4 (at) PDA and m-Fe3O4 (at) PDA; then, respectively carrying out hydrophobic modification on the n-Fe3O4 (at) PDA and the m-Fe3O4 (at) PDA by adopting NH2-PDMS (Polydimethylsiloxane)-NH2, so as to obtain Pn-Fe3O4 (at) PDA and Pm-Fe3O4 (at) PDA; secondly, acrylic resin is dissolved in a butyl acetate solution, then Pn-Fe3O4 (at) PDA, Pm-Fe3O4 (at) PDA, benzaldehyde and a small amount of m-Fe3O4 (at) PDA are added into the solution, the mixture is stirred and mixed to be uniform, and a coating solution is obtained; and spraying the coating solution on the surface of a matrix to obtain the super-hydrophobic coating with a three-dimensional network structure. Partial hydrophobic modified micron core-shell structure particles and completely hydrophobic modified nano core-shell particles are connected in series through dynamic imine bonds, and under the hydrogen-bond action of a small amount of unmodified micron core-shell particles, the photo-thermal anti-icing and deicing super-hydrophobic coating which is of a three-dimensional network structure and is durable and stable in machinery is prepared through a simple spraying method.