34results about How to "Good anti-fog durability" patented technology

The invention relates to an ultraviolet light cured antifogging coating. The ltraviolet light cured antifogging coating adopts antifogging activated resin which contains activated double bond and can be cured by ultraviolet light as the main film-forming resin, and is prepared by mixing, based on total weight of the antifogging coating, 32-60% of the antifogging activated resin, 10-25% of activated diluent, 1.5-2.5% of photoinitiator, 25-40% of solvent, and 0.1-1% of adjuvant. The antifogging activated resin is prepared by subjecting reactive nonionic surfactant allyloxy nonyl phenoxy propanol polyoxyethylene ether, (methyl) acrylic acid and (methyl) butyl acrylate to free radical polymerization, and grafting and modifying by the polymer via glycidyl methacrylate, wherein the amount ratio of the glycidyl methacrylate to the (methyl) acrylic acid is 1-1.4. The film formed by the coating cured by the ultraviolet light is high in water resistance performance, durable in antifogging effect and high in hardness, and wiping resistance is improved remarkably.

The invention relates to an antifogging agent composition and an antifogging colored window film formed by the same. The antifogging agent composition comprises 9-14wt% of hydrophilic resin, 55-76wt% of propylene glycol methyl ether, 3-10wt% of dimethyl methylamine, 1-5wt% of triethylene-diamine, 1-5wt% of leveling agent, 5-26wt% of isopropanol and 5-24wt% of ethanol. The antifogging colored window film comprises an antifogging agent coating layer (1), a first transparent polyester film or transparent polyethylene film substrate (2-1), a dyed acrylic acid adhesive layer (3-1), a second transparent polyester film or transparent polyethylene film substrate (2-2), an acrylic acid adhesive layer (3-2) and a releasing film (4) which are integrally composited, wherein the antifogging agent coating layer (1) is formed by the antifogging agent composition. The antifogging colored window film is antifogging, attractive, transparent and safe.

The invention belongs to the technical field of preparation of anti-fog agents for automotive glass and particularly discloses a long-acting anti-fog agent for automotive glass and a preparation method of the anti-fog agent. The anti-fog agent comprises raw materials in percentage by mass as follows: 10%-15% of modified nano-silica sol, 1%-2% of a modified polyacrylate solution, 1%-3% of polyethylene glycol 1000, 2%-3% of OP-10, 0.5%-1% of sodium dodecyl sulfate, 0.5%-1% of sodium dodecylbenzenesulfonate, 8%-10% of glycerin, 5%-7% of propylene glycol, 15%-20% of ethyl alcohol and the balance of water, and the sum of total mass percentage composition is 100%. The anti-fog effect of the anti-fog agent is greatly enhanced through adoption of modified super-hydrophilic nano-silica; with adoption of the modified polyacrylate solution with better adhesion performance, super-hydrophilic nanoparticles and surfactant components can adhere to the glass without falling, so that the durability of the anti-fog agent is enhanced, and the anti-fog effect can be kept for 3 months.

The invention discloses a super-thermal hydrogen treatment method of durable anti-fog plastic sheet, which comprises the following steps: (1) pretreating a plastic substrate with a low-temperature plasma surface finishing machine; (2) spreading a solution containing polymer/nano-silica onto the surface of the pretreated plastic substrate; and (3) stoving the plastic substrate, and then performing super-thermal hydrogen treatment of the plastic substrate to obtain the durable anti-fog plastic sheet. The preparation technology of the durable anti-fog plastic sheet is green and environment-friendly, and can be used for directly grafting and modifying a common hydrophobic polymer substrate with a hydrophilic polymer, a final product has high transparency and a certain permeability improvement effect, and meanwhile the anti-fog performance of the surface of a sample is durable so as to overcome the defect of poor anti-fog durability of the conventional anti-fog product.

The invention relates to a preparation method of a self-cleaning antifogging astronomical telescope lens. According to a preparation method of a self-cleaning antifogging coating, nano silicon dioxideis doped with nano titanium dioxide for the first time, the nano silicon dioxide, the nano titanium dioxide and nano silver are taken as main components to enable the coating to be self-cleaning andantifogging, the coating not only has a good self-cleaning effect, but also has a lasting antifogging effect, and a coating film has excellent antibacterial function. By the prepared self-cleaning antifogging coating film, a thin and transparent protecting film can be formed on the surface of the glass, the adhesive force of the film is high, a lens surface can be rapidly cleaned, rapid volatilization is implemented, and marks do not remain on the lens surface. Meanwhile, the prepared lens also has the characteristics of excellent self-cleaning, antifogging, stabilization and high transmittance properties and the like.

The invention provides an anti-mist liquid good in anti-mist effect, an anti-mist cloth prepared from the same and a preparation method of the anti-mist cloth. The anti-mist cloth is convenient to useand long in effect duration. The anti-mist liquid comprises nano-cellulose, water-soluble macromolecules, a surfactant, a water-soluble solvent and the like, wherein the surfactant plays a role in wetting and spreading, the nano-cellulose can improve the moisture retention and water scouring resistance functions of a coating, the water-soluble macromolecules and the nano-cellulose achieve a synergistic function to improve the anti-mist effect, and the water-soluble solvent makes the anti-mist liquid dry faster.

The present invention provides a liquid polyurethane coating composition capable of forming a cured coating film having excellent scratch resistance and excellent antifogging durability, and a resin member having the cured coating film. The polyurethane coating composition contains a specific amount of a polyisocyanate (a), a polyether polyol (b), and a surfactant (c), and the polyether polyol (b)has a number average molecular weight of more than 300 and less than 600, a polyether polyol (b-2) having a number average molecular weight of more than 600 and less than 900, and a polyether polyol(b-3) having a number average molecular weight of more than 900 and less than 1800. The surfactant (c) is an ionic surfactant having a hydroxyl group in the molecule, and an anionic surfactant and/oran amphoteric surfactant having no group reactive with an isocyanate group.

The invention discloses polysiloxane and application thereof. The polysiloxane is formed by reacting a semi-closed isocyanate prepolymer with an organic polymer silanol. The polysiloxane has an anti-fog function, and when the polysiloxane is applied to an anti-fog coating, UV curing can be achieved, and the hardness of the coating can be improved.

The invention discloses an anti-fogging agent and a preparation method thereof, and relates to the technical field of anti-fogging agents. The anti-fogging agent disclosed by the invention comprises the following components in parts by weight: 30 to 80 parts of sodium fatty alcohol polyoxyethylene ether sulfate, 15 to 55 parts of sodium ethoxylated alkyl sulfate, 10 to 50 parts of fatty alcohol ether sodium sulfate, 10 to 50 parts of alkylphenol polyoxyethylene, 3 to 20 parts of amine oxide, 5 to 25 parts of rosin, 1 to 9 parts of sodium chloride and 10 to 35 parts of softened water. A mild formula is adopted, and does not contain acid and alkaline corrosion materials, the prepared product is free of corrosion for laminated films and glass of automobiles, an anti-fog test shows that fog can be prevented for 7 to 10 days after rubbing once, the fog removal and anti-fog effects are obvious, the anti-fogging agent is free of glare at night, the view is clear, and the anti-fogging agent does not contain any pigment or volatile gas.

The invention belongs to the field of preparation of anti-fog heat-sealing films, and particularly relates to a high-temperature anti-fog breathable polyethylene heat-sealing film and a preparation method thereof. The heat-sealing film comprises a surface layer, a core layer and a heat sealing layer from top to bottom, a three-layer co-extrusion layer ratio structure is as follows: LDPE + LLDPE/(LDPE + LLDPE + an initial high-temperature antifogging agent + a long-acting high-temperature antifogging agent)/(LDPE + LLDPE + PBE + an initial high-temperature antifogging agent + a long-acting high-temperature antifogging agent + nano calcium carbonate); wherein the surface layer accounts for 10-30 wt%, the core layer accounts for 40-75 wt%, and the heat sealing layer accounts for 15-30 wt%. The anti-fog heat-sealing film prepared by the invention has the characteristics of better anti-fog durability, better air permeability, high heat-sealing strength and good comprehensive performance, isparticularly suitable for packaging of fruit and vegetable products, is particularly beneficial to market development, and promotes the progress of packaging materials.

The invention discloses high-wear-resistance hydrophilic resin, a high-wear-resistance solvent-free anti-fog coating and a preparation method and application thereof. The anti-fog coating comprises the following components: the high-wear-resistance hydrophilic resin, hydrophobic resin, a reactive diluent, a photoinitiator and an auxiliary agent, the hydrophilic resin is a UV-curable hydrophilic polymer designed by the invention. The hydrophilic resin with high wear resistance is designed and applied to an antifogging formula to obtain the high-wear-resistance solvent-free antifogging coating, and the coating is safe and non-toxic, can form a film on various types of base materials, can be rapidly cured under ultraviolet irradiation, has high bonding strength with the base materials, yhe formed coating has good transparency, wear resistance and chemical resistance, and has excellent antifogging performance.