30results about How to "Low ice adhesion" patented technology

Articles including durable and icephobic and / or biocidal polymeric coatings are disclosed. The polymeric coatings can include a bonding layer which may contain a substantially fully cured polymeric resin providing excellent adhesion to metallic or polymer substrates. The polymeric coating further includes an outer surface layer which is smooth, hydrophobic, biocidal and icephobic and, in addition to a substantially fully cured resin, contains silicone comprising additives near the exposed outer surface. The anisotropic polymeric coatings are particularly suited for strong and lightweight parts required in aerospace, automotive and sporting goods applications. A process for making the articles is disclosed as well.

Articles including durable and icephobic polymeric coatings are disclosed. The polymeric coatings include a bonding layer which may contain a substantially fully cured polymeric resin providing excellent adhesion to metallic or polymer substrates. The polymeric coating further includes an outer surface layer which is smooth, hydrophobic and icephobic and, in addition to a substantially fully cured resin, contains silicone comprising additives near the exposed outer surface. The anisotropic polymeric coatings are particularly suited for strong and lightweight parts required in aerospace, automotive and sporting goods applications. A process for making the articles is disclosed as well.

A hard, wear resistant and ice-phobic coating ( 10 ) can be applied to an air foil surface ( 12 ) in a single application to enhance the deicing of the surface. The coating includes a functional top layer ( 14 ) which is harder than the air foil surface and has high contact angle with water. The functional layer contains carbon (>35 atomic %) and hydrogen (0-40 atomic %) in a diamond-like carbon, glassy, or amorphous configuration, as well as incorporated silicon and oxygen (0.1-40 atomic % each).

The invention discloses an integrated forming method of a polymer material with a covering ice preventing function. By designing the mold surface structure and adjusting the forming hot-pressing parameters of a composite material, integrated forming of a covering ice preventing function structure and a polymer-based material is achieved. The polymer material with the covering ice preventing function and the integrated forming method thereof have the following advantages that the two functions of preparation of the polymer-based material and integration of the covering ice preventing micro-structure on the material are finished at the same time; compared with the traditional technology, operation is simple, the structure forming property is good, and the micro-structure distribution is uniform; the prepared polymer material has the surface with the super-hydrophobicity to the liquid-state water, the freezing time of supercooling liquid drops is prolonged remarkably, and thus the supercooling liquid drops have enough time to leave the surface; and the ice adhesion strength is extremely low, the covering ice can be separated from the material surface under the action of natural wind force or gravity, and the polymer material can be used for covering parts, which are exposed in the extreme environment, on the outer surface of machine equipment and has the important practical significance to the ice preventing and removing technological development of a wind power machine and an airplane.

The invention belongs to the technical fields of chemistry and chemical engineering, and relates to an icing-proof coating with low ice adhesion, and a preparation method and application thereof. The icing-proof coating provided by the invention is composed of an inorganic material and a cross-linked hydrophilic polyelectrolyte. The inorganic materials and the cross-linked hydrophilic polyelectrolyte are mixed and subjected to ball milling, and then coated on a substrate film, and cured to form the icing-proof coating. The inorganic material improves surface mechanical properties and wear resistance of the icing-proof coating, while the hydrophilic cross-linked polyelectrolyte ionizes a large amount of ions after water absorption; the ion solution with high concentration lowers the freezing point of water and enables an unfreezing water film to be formed on the surface of the icing-proof coating; therefore, a lubricating layer is introduced between ice and the surface of the icing-proof coating, so that the ice later on the substrate surface layer breaks away from the substrate surface under the action of gravity or wind to realize the icing-proof effect.

The invention provides a mono-component hybridized aqueous anti-icing coating material. The mono-component hybridized aqueous anti-icing coating material mainly contains a hybridization emulsion, wherein the hybridization emulsion is a nanoparticle modified polymer emulsion preferably. The invention further provides a coating layer containing the coating material, a preparation method of the coating material, a coating method of the coating layer and a method for forming an anti-icing coating layer on the surface of a base material. As water serves as a dispersion medium, the mono-component hybridized aqueous anti-icing coating material provided by the invention is environment-friendly; after cured to form a film, the coating layer can have excellent wear resistance and prolonged service life; through coating the surfaces of base materials, such as metal, glass and macromolecular engineering materials, with the anti-icing coating layer, the ice adhesion strength of the surfaces of the base materials can be lowered, so that compared with the other similar materials, the material has the following advantages of simple process, wide applicable range, easiness in large-area construction, excellent anti-icing performance, excellent mechanical properties and easiness in coating layer repair.

The invention relates to benzoxazine type super-hydrophobic nano silicon dioxide as well as a preparation method and application thereof, belonging to the technical field of nano material modification and application. The benzoxazine type super-hydrophobic nano silicon dioxide is prepared by the following step: stirring benzoxazine and a solvent thereof, silicon dioxide nanoparticles and water for 0.5-2 hours at 20-50 DEG C in microwave condition. The water contact angle of a coating prepared from the benzoxazine type super-hydrophobic nano silicon dioxide is larger than 150 degrees, and the roll angle is smaller than 10 degrees while the coating has good anti-icing performance; compared with a metal aluminum surface, the ice adhesion strength on the surface of the anti-icing coating is reduced to 50% or below; at low temperature, the ice cover is reduced to 50% or below; and the water icing delay time on the surface of the anti-icing coating is longer than 30s.

The invention discloses an anti-sticking ice coating for a mine car and a preparation method thereof, and belongs to the technical field of anti-sticking ice coatings. The anti-sticking ice coating for a mine car is composed of A component and B component; wherein the A component is composed of Composed of the following raw materials: epoxy-modified silicone resin, functional filler, dispersant, wetting agent, active leveling agent, etc.; component B is composed of the following raw materials: crosslinking agent and second solvent; mine car of the present invention The anti-sticking ice coating uses epoxy modified silicone resin as the base material. The base material not only has the advantages of low temperature resistance and strong hydrophobicity of silicone resin, but also is modified by epoxy resin. Due to the unique epoxy resin Active groups such as radicals, hydroxyl groups, ether bonds, etc., so the epoxy resin modified silicone resin can significantly improve the adhesion of the coating.

The invention discloses a liquid-filled porous silicon resin anti-icing material and a preparation method thereof. A fluorosilane-modified porous silicon resin and fluorine-containing liquid composite layer is combined on a base material of the liquid-filled porous silicon resin anti-icing material, wherein the fluorine-containing liquid is filled in the fluorosilane-modified porous silicon resin, and the porous silicon resin is obtained by uniformly mixing an inorganic silicon or organic silicon raw material, a catalyst solution and organic nanoparticle in a solvent to form a mixed solution, directly coating the mixed solution on the surface of the base material, and removing the organic nanoparticle after drying and curing the coating; the fluorine-containing liquid is selected from one or two of liquid perfluorocarbon and liquid fluorosilicone; the fluorine-containing liquid has a viscosity range of 0.1-500cm<2> / s at the room temperature; and the average particle size of the organic nanoparticle is 50-800nm. When the environment temperature and the environment humidity can cause the base material to ice, the surface of the liquid-filled porous silicon resin can prevent subcooled water from contacting the base material, and a liquid lubricating material can be used for greatly descending the adhesive power of the ice layer and is easy to separate from the surface under the action of gravity or wind power. The liquid-filled porous silicon resin anti-icing material can be efficiently acted under the weather conditions such as the environment temperature of 0 to -40 DEG C and the environment humidity of 40%-90%.

An anti-icing lubricating grease and its preparation method and application, comprising dispersing nano-silica sol, ammonia water, deionized water, tetraethyl orthosilicate, and a hydrophobic treatment agent in absolute ethanol, and continuously stirring in a water bath, namely The superhydrophobic superoleophilic coating can be obtained; the superhydrophobic superoleophilic coating is placed in an oven to dry, and then the dried block is ground to obtain a superhydrophobic superoleophilic nanoparticle aggregate powder; the superhydrophobic superlipophilic nanoparticle aggregate powder is obtained; Oil nanoparticle powder, unmodified grease and silicone oil are dispersed in an organic diluent, and then ultrasonicated in an ultrasonic cleaner to obtain a uniformly dispersed mixed emulsion; the uniformly dispersed mixed emulsion is placed in an oven to obtain a semi-solid glue After standing still at room temperature to volatilize the residual organic diluent, the modified anti-icing grease can be obtained. The anti-icing lubricating grease coating process of the present invention has low requirements on the substrate, and has no requirements on flat or curved surfaces, and can be formulated and constructed in a large area, which is beneficial to the popularization and application of the anti-icing lubricating grease.

The invention discloses a preparation method for a durable organosilicon anti-icing coating with lubricity through a two-step process. The two-step process comprises the following two steps: step 1, formation of a brush-type graft polymer through a reaction of hydrogen-containing polydimethylsiloxane and vinyl single-terminal polydimethylsiloxane; and step 2, preparation of a uniform reaction solution with the brush-type graft polymer as a main raw material, vinyl double-terminal polydimethylsiloxane as a crosslinking agent and polydimethylsiloxane without participation in a crosslinking reaction as an additive, and preparation of the durable organosilicon anti-icing coating with lubricity under the action of a Karstedt't catalyst. The durable organosilicon anti-icing coating with lubricity prepared by using the above-mentioned two-step process provided by the invention has ultra-low ice shear strength and excellent wear resistance, wherein the lowest ice shear strength is 2.4 kPa. Thepreparation method provided by the invention is simple and convenient and has easily-available materials; and the anti-icing coating prepared by using the preparation method provided by the inventionhas good transparency and is applied in the field of hydrophobic and anti-icing coatings.