32results about How to "High shielding rate" patented technology

This invention relates to a method for preparing heat-insulating paint composition for glass. The heat-insulating paint composition comprises: micro-emulsified resin 20-60 wt. %, nanopowder (20-150 nm) 15-40 wt. %, and paint additive as balance. The micro-emulsified resin comprises: at least one of organosilicon resin, inorganic silicon resin, alkyd resin, epoxy resin, acrylate and polyurethane 50-80 wt.%, inorganic salt 0.001-5 wt.%, at least one of anionic, cationic and nonionic surfactants 0.001-8 wt.%, C1-C5 lower fatty alcohol 1-20 wt.%, and water as balance. The heat-insulating paint composition has such advantages as high heat insulation performance, high transparency, and high hardness, and can be used on building glass and automobile glass.

The invention relates to the technical field of thermal insulation coatings, in particular to a nano transparent thermal insulation coating with a switch function, which comprises the following components in percentage by weight: 10-30% of nano-sized antimony doped stannic oxide dispersion the concentration of which is 30%, 2-10% of nano-sized vanadium oxide dispersion the concentration of which is 30%, 30-70% of film-forming agent, 0.3-0.8% of antifoaming agents, 0.05-0.8% of flatting agent and the balance water. The nano transparent thermal insulation coating is prepared by adding the components to a high-energy stirring mill to stir in accordance with the formula. The coating in the invention has the advantages of safety, non-toxic side effects, non-pollution on the environment, high bonding strength, short drying time, high transparence, non-influence on visual effect, corrosion prevention, acid-base resistance and the like, and is convenient to use.

The invention discloses a neutron shield material with flame-retardant neutron shield heat-shielding performance and a preparation method thereof. The material is prepared from dimethylvinyl silica gel, a neutron absorber material, a flame-retardant functional filler, a heat-shielding functional filler, vulcanizing agent 2,5-dimethyl-2,5-dihexane and a powder surface modifier. The method comprises the steps of adding the dimethylvinyl silica gel and vulcanizing agent 2,5-dimethyl-2,5-dihexane in an open mill for plastication, then mixing the mixture and the neutron absorber material, the flame-retardant functional filler, the heat-shielding functional filler as well as the powder surface modifier, adding the mixed solution in a vacuum internal mixer for banburying, and finally adding a product obtained after the banburying into a press vulcanizer to obtain the neutron shield material with the flame-retardant neutron shield heat-shielding performance. The material has the thermal neutron shielding performance, and has good tenacity, flame-retardance, heat-shielding performance and mechanical strength, peripheral protection of nuclear instruments with complicated shaped can be met, and the material is also a good core material for neutron protection clothing.

The invention discloses tantalum-doped cesium tungsten bronze and a preparation method and application thereof. The tantalum-doped cesium tungsten bronze adopts a molecular formula of CsxTayW1-yO3, wherein y is greater than or equal to 0.01 and smaller than or equal to 0.30, and x is greater than or equal to 0.20 and smaller than or equal to 0.33. The tantalum-doped cesium tungsten bronze is applied to preparation of heat-insulating coating or a heat-insulating film, so that the heat-insulating coating or the heat-insulating film has the advantages of high near-infrared light shielding rate toand high visible light transmittance.

The invention discloses barium sulfate/polyvinyl alcohol composite fiber and a preparation method thereof and non-woven fabric. The composite fiber consists of the following components in percentage by mass: 20-80% of barium sulfate and 80-20% of polyvinyl alcohol. The composite fiber is prepared by blending superfine barium sulfate and polyvinyl alcohol and performing a wet spinning technology; and the prepared non-woven fabric has the characteristics of good resistance to ray radiation, good air permeability, smooth hand feeling, gentle gloss and wearing comfort and softness. The fineness of the composite fiber is 1.5-5dtex, the dry breaking strength is 2.0-8.0cN/dtex, the dry elongation at break is 15-40%, and the initial modulus reaches 60-100cN/dtex. The shielding rate of the non-woven fabric with fixed weight of 500g/m<2> and prepared from the composite fiber against medium- and low-energy X rays can exceed 70%, and the shielding rate of protective clothing can be further improved by adjusting the thickness or layer number of the fabric.

The invention relates to composite ultraviolet-proof finishing liquid. The composite ultraviolet-proof finishing liquid comprises 25-30 g/L of nanometer oxide, 15-30 g/L of metallo chelate, 20-30 g/L of synergist, 15-20 g/L of ethyl alcohol, 10-15 g/L of methyl alcohol, 10-15 g/L of urea, 2-4 g/L of glycerinum, 0.5-1 g/L of polyoxyethylene ether, 0.5-1 g/L of azodiisobutyronitrile, 0.3-1 g/L of flatting agent, 0.2-1 g/L of antifoaming agent, and 1-2 g/L of curing agent, water serves as the solvent, the nanometer oxide is the powder mixture of ZnO, TiO2 and SiO2. Woven cloth treated through the finishing liquid has the excellent ultraviolet-proof function, the shading coefficient reaches to over 70%, the ultraviolet light shielding rate reaches to over 98%, and the ultraviolet protection factor (UPF) is higher than 40.

The invention discloses a processing method of a nano-coated anti-ultraviolet glass. The processing method comprises at least: cleaning->coating preparation->precision coating equipment->precision flash drying leveling->precision infrared curing->precision strong cooling conveying. The nano-coated anti-ultraviolet glass has obvious advantages of ultraviolet-shielding compared with the ordinary glass. The nano-coated anti-ultraviolet glass is prepared by coating a layer uniform nano material on the glass surface by using the nano-coating process, the ultraviolet-shielding ability of the nano anti-ultraviolet glass can be greatly improved, and the original visible light transmittance and color of the float glass are not significantly changed. Modified nano titanium dioxide is added in the nano-coated anti-ultraviolet glass, the nano titanium dioxide is wetted with a surfactant, the clustered nano-titanium dioxide is dispersed by using the ultrasonic wave high frequency, and a film of thesurfactant is formed on the surface of the nano titanium dioxide particles, so that the dispersivity of the nano titanium dioxide in the coating is improved, the coating powdering resistance is improved, and the visible light transmittance and ultraviolet shielding rate are increased.

The invention relates to a water-based micro-nano flaky graphite radon radiation shielding coating and a preparation method and a construction method thereof. The water-based micro-nano flaky graphiteradon radiation shielding coating is prepared from the following components in percentage by mass: 0.1-2% of water-based micro-nano flake graphite powder; 10-30% of quartz powder; 0-30% of ground calcium carbonate powder, 30-60% of acrylic emulsion, 5-15% of hydroxyethyl cellulose aqueous solution, 10-20% of water, 0.3-1% of dispersing agent, 0.1-0.5% of defoaming agent, 0.3-1.5% of coalescing agent, 0.1-0.5% of thickening agent and 0.1-0.3% of preservative. According to the invention, the defects of long drying time and low speed caused by a plurality of processes in on-site radon radiationshielding coating construction engineering are avoided; the coating can be used for various building structure base surfaces, particularly can be used for special-shaped structures such as cylinders,arc tops and bent corners, has the advantages of waste collection, emission reduction, water-based environmental protection and long service life, and has important application value for radon radiation treatment of constructional engineering.

The invention discloses a gamma-ray shielding material, belonging to the technical field of shielding materials. The gamma-ray shielding material is prepared from the following components in parts by weight: 5-90 parts of vanadium slag, 5-8 parts of epoxy resin, 3-5 parts of a curing agent and 30-240 parts of a volatile diluent, wherein the epoxy resin is bisphenol A type epoxy resin, the curing agent is synthetic resin, and the volatile diluent is one or more of alcohol compounds, ketone compounds and aromatic compounds. According to the gamma-ray shielding material, the problem that vanadium slag is difficult to be comprehensively utilized in the past is solved, a new way is opened for the utilization of the vanadium slag, and a very cheap raw material is found for the production of a gamma-ray protecting material; and the gamma-ray shielding material has the characteristics of low cost, simplicity in production and operation, no secondary pollution and the like.