533results about How to "Good anti-fog performance" patented technology

The invention belongs to the technical field of chemical materials, particularly relates to a self-cleaning epoxy resin anti-fog coating, which has high transparency and is composed of epoxide resin, firming agent, hydrophilic high polymer, surface active agent, functional nano particles and the like according to a proper proportion. The coating can be applied on the surfaces of glass, plastics and other base materials, and has excellent anti-fog and self-cleaning effects, good weather resistance and long service life.

A multilayer film includes a first and second outer layer each including a polymer; and an internal layer including an oxygen scavenger; where the first outer layer includes a blend of a polymer and an antifog agent, where the antifog agent includes at least one of a mono fatty acid derivative of glycerol, and a polyglycerol mono fatty acid derivative; and wherein the first outer layer includes from 0.1% to 3%, by weight of the first outer layer, of the antifog agent.

Provided is a toner, including toner particle having surface layer, in which: the surface layer includes organosilicon polymer which has a partial structure represented by formula (1); in ²⁹Si—NMR measurement of tetrahydrofuran-insoluble matter of toner particle, a ratio of a peak area for the partial structure represented by formula (1) to a total peak area for the organosilicon polymer is 5.0% or more; in X-ray photoelectron spectroscopic analysis of a surface of toner particle, a ratio of a density of a silicon atom dSi in the surface of toner particle is 1.0 to 28.6 atom %; and in a roughness curve of toner particle measured by using a scanning probe microscope: an arithmetic average roughness Ra is 10 to 300 nm; σRa/Ra is 0.60 or less; an average length RSm of a roughness curve element is 20 to 500 nm; and σRSm/RSm is 0.60 or less.

An antifogging glass is provided which has not only an excellent antifogging property but also an excellent appearance and provides an excellent visual effect to an observer.

An antifogging glass for a vehicle window, comprising a glass sheet for a vehicle window and an antifogging film disposed on an interior side of the glass sheet, the glass sheet having a dark concealment region disposed in a band-shape on a peripheral edge portion thereof, and the antifogging film having an edge present in a position closer to a central portion of the glass sheet than an edge of the glass sheet and in the dark concealment region.

The invention discloses an antibacterial PVC hard sheet suitable for packing a medicament, which comprises the following components in part by weight: 100 parts of PVC resin, 5 to 50 parts of plasticizer, 0.3 to 3.0 parts of stabilizer, 0.1 to 1.0 part of lubricant, 0.02 to 1.0 part of talcpowder, 0.5 to 5.0 parts of fog resistant agent and 0.2 to 2.0 parts of antibacterial agent. The antibacterial PVC hard sheet of the invention is suitable for blister packaging of the medicament and health-care products, particularly suitable for the blister packaging of natural products and Chinese medicinal preparations. The antibacterial PVC hard sheet can keep good adhesive force, transparency and atomization resistance while obtaining antibacterial performance, and meets the requirements of relevant state standards.

This invention relates to a perfectly or partially crosslinked olefinic thermoplastic elastomer composition which comprises 10 to 90 parts by weight of a crystalline polyolefin (a), 90 to 10 parts by weight of an olefin-based copolymer rubber (b) (the total amount of the components (a) and (b) being 100 parts by weight) and 3 to 100 parts by weight of a paraffinic mineral oil softening agent (c) having an evaporation loss of 0.4% by weight or less at a condition of 200° C., atmospheric pressure and 1 hour and having a kinetic viscosity (40° C.) of 50 to 250 cSt; an olefinic thermoplastic elastomer composition which is obtainable by subjecting a mixture including 40 to 85 parts by weight of an ethylene-based copolymer rubber (A), 60 to 15 parts by weight of an olefinic resin (B) and 45 parts by weight or less of a softening agent (C) [the total amount of the components (A), (B) and (C) being 100 parts by weight] to dynamic heat treatment in the presence of a crossliking agent and which has a gloss value of 80% or more and a haze value of 10% or less on glass plate when subjected to the fogging test at a condition of 100° C. and 3 hours according to the prescription of A method of DIN 75201; and a manufacturing method and use of the compositions.

The invention which provides a preparation method of a superhydrophilic TiO2/SiO2 porous bilaminar membrane which has a high transmittance and can perform the superhydrophilicity under visible light belongs to the technical field of nanomaterials. The method comprises the following steps: 1, carrying out spin coating on a glass substrate with an SiO2 sol, drying, carrying out spin coating with a mixed solution of polyethylene glycol 2000 and TiO2, and drying the glass substrate in a drying box for 20-40min at 80-120DEG C; 2, heating the dried glass substrate in a muffle furnace to 450-550DEG C according to a heating rate of 2-3DEG C/min, and annealing for 2-3h; and 3, naturally cooling to room temperature after completing the anneal to obtain the superhydrophilic TiO2/SiO2 porous bilaminar membrane. The prepared superhydrophilic TiO2/SiO2 porous bilaminar membrane of the invention, which has a highly ordered porous structure and a high transmittance, can perform the superhydrophilicity under visible light and has a good antifog effect, can be applied to various antifog occasions of building glass, automobile rearview windows, windscreens, bathroom glass and the like.

The invention relates to a transparent covering material for solar greenhouse in winter and for plastic greenhouse in early spring, in particular to a polyvinyl chloride antifogging dripless greenhouse film which can prevent from fogging in the greenhouse and enables the water drops in the condensed in the internal surface of the greenhouse film to wet and spread quickly. The polyvinyl chloride antifogging dripless greenhouse film adopts polyvinyl chloride resin as the base, adding plasticizer, heat stabilizer, ultraviolet absorbent, compound dripless agent and organosilicon antifogging agent into the polyvinyl chloride resin, and being prepared through calendering, stentering and other production process steps. The transparent covering material for solar greenhouse in winter and for plastic greenhouse in early spring has the advantages of good dripless antifogging effect, improvement of light transmittance for greenhouse film, incensement of light intensity, beneficial photosynthesis for crops, beneficial improvement of greenhouse temperature, acceleration of crops growth, and reduction of disease occurrence.

The invention provides a preparation method for a nanometer composite anti-fogging film. The method comprises the following steps: dissolving inorganic nanoparticles in water, mixing the dissolved inorganic nanoparticles with acrylamide and/or acrylic acid ester monomers, adding a catalyst and/or initiator and carrying out in situ free radical polymerization with the inorganic nanoparticles as a cross-linking agent under the condition of ultraviolet light initiation or standing at room temperature so as to produce nanometer composite microgel; and subjecting the nanometer composite microgel to film forming by using a spraying method, a gel stretch method, a Czochralski method, a spin-coating method, a sol deposition method or a blade coating method and curing an obtained film in a baking oven so as to obtain the nanometer composite anti-fogging film. The method for preparing the nanometer composite anti-fogging film in the invention can improve bonding force between a coating of the anti-fogging film and a substrate and anti-fogging duration time and wear resistance of the anti-fogging film.

The invention belongs to the technical field of nano material preparation, and in particular relates to a super-hydrophilic self-cleaning SiO2 antifogging coating and a preparation method thereof. The super-hydrophilic self-cleaning SiO2 antifogging coating is prepared by layer-by-layer electrostatic assembly and dipcoating method through simple and cheap instruments and is expected to realize industrialization. The coating is formed by SiO2 hollow spheres, and the surface of the coating formed by the SiO2 hollow spheres has a hierarchical coarse structure and a hierarchical nanoscale porous structure; and the coating can be used on glass products, and is particularly suitable for various substrates requiring antifogging treatment in a damp air environment, particularly in showery days in the south of China.

The invention provides a nano antifogging paint composition which comprises the following components in percentage by weight: nano silicon dioxide sol, nano titanium dioxide sol or doped nano titanium dioxide sol, polyorganosiloxane, alkylol amine, acrylamide and a film former. The preparation method of the nano antifogging paint composition comprises the following steps: mixing the nano silicon dioxide sol and nano titanium dioxide sol, adding the polyorganosiloxane, alkylol amine, acrylamide and film former at 60-90 DEG C, mixing, and reacting to obtain the nano antifogging paint. Compared with the prior art, the nano antifogging paint is convenient to use, and after a soft cloth soaked with the paint is used for wiping a glass surface, a transparent nano hydrophilic coating can be formed to have favorable antifogging effect; the effective time after one-time wiping can reach 12 hours; and after the antifogging effective time, the nano antifogging paint can be applied again to restore the antifogging effect.

The invention discloses an environment-friendly optical glass cleaning agent and a preparation method thereof. The environment-friendly optical glass cleaning agent is prepared from the following raw materials in percentage by mass: 2 to 6 percent of inorganic alkali, 0.5 to 0.8 percent of anionic surfactant, 0.2 to 0.4 percent of non-ionic surfactant, 15 to 35 percent of film-forming agent, 0.4 to 1.0 percent of corrosion inhibitor, 0.5 to 1 percent of chelating agent and the balance of deionized water, wherein the anionic surfactant is prepared from sodium lauryl sulfate and fatty acid methyl ester sulfonate in a mass ratio of (5:1) to (1:1); the non-ionic surfactant is prepared from dodecyl glycoside; the film-forming agent is prepared from ethanol and ethylene glycol in a mass ratio of 1:1; the corrosion inhibitor is prepared from sodium citrate and triethanolamine in a mass ratio of 1:1. The optical glass cleaning agent disclosed by the invention has the advantages of good cleaning effect, high cleanliness of cleaned glass, no corrosion to the glass, high biodegradability, freeness from pollution, and low skin irritation.

The invention provides water ultraviolet curing offset-printing gloss oil for glazing printed matter surface. The prior ultraviolet glazing oil does not meet the residue requirements of the tobacco package industry, has certain volatility as well as irritation, and is still harmful to environment. The curing offset-printing gloss oil comprises the following components in weight percentage: 10 to 50 percent of polyurethane acrylic resin, 10 to 50 percent of epoxy acrylate resin, 5 to 20 percent of dipentaerythritol hexaacrylate, 1 to 10 percent of 4-(N, N-dimethylamino) ethyl benzoate, 1-10 percent of o-benzoyl methyl benzoate, 1 to 10 percent 4-chlorobenzophenone, 0.1 to 1.0 percent of BaBr2, 10 to 20 percent of water, 0.1 to 1 percent of organosilicon flatting agent, 0.1 to 1 percent of defoaming agents and 0.1 to 1 percent of antifogging agents. As more than 65 percent of the components of the curing offset-printing gloss oil do not volatilize, the curing offset-printing gloss oil is low in irritation and little in odor, has no solvent residue, and meets cigarette label residue requirements.

The invention discloses an anti-fog polyolefin graft copolymer and a preparation method thereof. The anti-fog polyolefin graft copolymer is prepared through a two-step grafting method. The method specifically comprises the following steps: (1) carrying out grafting reaction on polyolefin, a peroxide initiator and a polar monomer to obtain a polar monomer graft copolymer A; and (2) further grafting hydrophilic macromolecules into the polar monomer graft copolymer A through the action of a chemical bond to obtain the anti-fog polyolefin graft copolymer B. The anti-fog polyolefin graft copolymer has excellent hydrophilic performance, is not easy to run off due to rainwash and has a more lasting anti-fog effect.

The present invention provides a copolymer comprising repeating units derived from (A) at least one fluoroalkyl (meth) acrylate represented by the following general formula (I) or (II):

wherein, X¹ represents —O— or —NR³—; R¹ represents —H or —CH₃; R³ represents a hydrogen atom, a substituted or unsubstituted alkyl group having 1 to 12 carbon atoms, a substituted or unsubstituted cycloalkyl group having 3 to 12 carbon atoms, a substituted or unsubstituted aryl group having 6 to 12 carbon atoms or a substituted or unsubstituted aralkyl group having 7 to 24 carbon atoms; R² represents H or F; m is an integer ranging from 0 to 10; n is an integer of 2 or 3; and o and p each represents an integer of 1 or 2, and (B) at least one polyoxyalkylene group-containing ethylenically unsaturated monomer, and also provides an image-forming composition, a presensitized plate useful for preparing a lithographic printing plate, a paint composition or a photo resist composition comprising the copolymer. The fluoroaliphatic group-containing copolymer can provide a coating composition capable of simultaneously satisfying the requirements for the ability of a coating liquid to wet the base material and the uniform coating ability upon the application of the liquid and the post-processing aptitudes such as the re-coating ability of the coated film and developing ability as well as the foaming ability of the coating liquid.

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 relates to an antifogging coating, a manufacture method and antifogging glass thereof. The manufacture method comprises of the following steps:1, preprocessing the surface of a transparent material, namely, degreasing by using an organic solvent A, carrying out physical polishing, washing sequentially by tap water and distilled water, and drying; 2, mixing 5-10 parts by mass of maleic anhydride-grafted polyethylene, 10-40 parts by mass of inorganic nanometer material processed by a silane coupling agent and 1-5 parts by mass of catalyst into an organic reagent B, coating the surface of the transparent material processed in the step 1, and carrying out thermal processing on the transparent material in vacuum; and 3, dissolving 8-10 parts by mass of high-molecular polymer with hydrophilic functional groups and 2-6 parts by mass of surfactant into water, mixing uniformly, then coating the surface of the transparent material treated in the step 2, and carrying out thermal processing in vacuum so as to obtain the long-acting antifogging coating on the surface of the transparent material.

The invention discloses a nanometer calcium silicate hydrate super-hydrophilicity thin film as well as a preparation method and applications of the thin film and belongs to the field of functional composite materials. The preparation method comprises the steps of: soaking a pretreated base film with negative electric charges on surface in a 1.0-8.0g/L cationic polyelectrolyte solution containing 0.01mol/mL-0.1mol/mL soluble calcium salt for 10-30 minutes, then taking out the base film and flushing the base film with deionized water; soaking the base film in a 1.0-8.0g/L anionic polyelectrolyte solution containing 0.01mol/mL-0.1mol/mL soluble silicate for 10-30 minutes, then taking out the base film and completely flushing the base film with deionized water; repeating above operations for 1-3 times to obtain the polyelectrolyte nanometer calcium silicate hydrate super-hydrophilicity thin film. The super-hydrophilicity thin film has a super-hydrophilicity property and an excellent anti-fog property.