31results about How to "Improve refractive properties" patented technology

The invention discloses a preparation method of a titanium dioxide nanosheet-diatomite composite photocatalyst. The method comprises the following steps: pretreatment: putting diatomite into a container, adding deionized water and concentrated hydrochloric acid, carrying out reflux reaction for 5 hours under magnetic stirring, carrying out vacuum filtration, respectively washing with deionized water and anhydrous ethanol three times until no chlorine ion exists, and carrying out vacuum drying at 100 DEG C to obtain pretreated diatomite; and preparation of photocatalyst: dispersing the pretreated diatomite in anhydrous ethanol, adding titanium tetraisopropylate, transferring into a teflon-lined hydrothermal reaction kettle, dropwisely adding hydrofluoric acid into the reactor, sealing the teflon-lined hydrothermal reaction kettle, keeping the temperature at 160-220 DEG C for 24-50 hours, filtering the reaction product, washing and drying to obtain the titanium dioxide nanosheet-diatomite composite photocatalyst. The complementation of the advantages of high dispersity and pearly luster of composite photocatalyst is achieved, and the formaldehyde degradation efficiency can be effectively enhanced.

The invention relates to a combined high-precision hot stamping plate and a three-channel hot stamping refraction anti-counterfeiting mark, which aims to solve the technical problem of poor anti-counterfeiting effect of the traditional nesting overprinting, including a set of combined high-precision The laser engraving plate and two hot stamping films with different effects and colors, through the combination of the combined hot stamping plate and the hot stamping plate, combined with the structural design characteristics of the hot stamping mold and the hot stamping mold, realize the hot stamping plate and the hot stamping plate The three-channel refraction anti-counterfeiting logo is successively folded and ironed, so that different patterns, characters or lines can be observed from different viewing angles, which solves the technical problem that the folded ironing cannot form refraction anti-counterfeiting at various angles of view in the prior art.

The invention provides a crops waste material regenerated composite plastic plate and its production process, the process comprises the following steps: using a waste and old PVC material and a crop waste material as raw materials, classifying, fragmenting, cleaning, drying, milling, pretreating, molecule modifying to prepare crops waste material regenerated composite plastic plate. No pollutant is generated during the whole production process, the energy consumption is low, the regenerated composite plastic plate has the advantages of low price and stable quality.

The invention provides an ultraviolet mixing solidifying adhesive for a display and a preparation method thereof.The ultraviolet mixing solidifying adhesive for the display is prepared from, by weight, 40-90 parts of polyurethane graft modification sulfur-containing epoxy monoacrylate with the grafting ratio being 50% or above, 10-45 parts of an activated thinner, 1-5 parts of a photoinitiator and 1-10 parts of a thermal curing agent.By adopting the technical scheme, the adhesive is cured with the mixture of ultraviolet light and heat, has the high bonding strength for glass base materials and the like, meanwhile has the high refractivity, can meet the requirement for adhesion fixation of optical components in the display, and can also solve the problem that an existing adhesive is low in refractive index and the like, wherein the refractive index of the adhesive is 1.50 or above.

The invention belongs to the field of fruit tree sunscald and particularly relates to a sunscreen for fruit trees. The sunscreen for fruit trees is composed of titanium dioxide, ionized calcium, diethyl aminoethyl hexanoate, a chelating agent, a cationic surface active agent, a dispersing agent, a preservative, an antifoaming agent and a thickening agent. The invention also provides a preparationand use method of the sunscreen for fruit trees. The sunscreen for fruit trees is capable of well settling and reducing occurrence of sunscald, convenient to use, capable of decreasing the investmentcost for massive fruit farmers and increasing benefits for the fruit farmers and is invented to avoid the situation that there are no good resolutions to a phenomenon that sunscald easily occurs in fruit planting areas.

The invention discloses a preparation method of a nano self-cleaning environment-friendly coating. The preparation method comprises the following steps: firstly, putting a nano titanium dioxide colloid into a stirring reaction kettle; adding deionized water, ethanol and an organic solvent for reaction to prepare a nano titanium dioxide colloidal solution; adding the nano titanium dioxide colloidalsolution into a heating stirrer, meanwhile, adding zeolite, inorganic environment-friendly filler, polyvinylpyrrolidone and sodium benzoate at the same time, then performing a stirring reaction to prepare a nano titanium dioxide emulsion, adding the nano titanium dioxide emulsion into a stirring kettle, adding a thickening agent and a defoaming agent, thereby preparing the nano self-cleaning environment-friendly coating. The environment-friendly coating has super-hydrophobic and oleophobic performance and excellent self-cleaning performance. The invention further provides a ball milling device, the ball milling device is used for grinding and refining titanium dioxide particles, mixed materials roll in the wheel sand cutting groove formed in the ball milling device, grinding and refiningare achieved, and the ball milling effect is good.

The invention relates to a preparation method for a fixed abrasive polishing pad, and belongs to the technical field of chemical-mechanical polishing dressing preparation. Zirconium propoxide solution serves as a precursor, composite epoxy resin and acetone serve as mediums, and after high-refractive fiber is prepared by electrostatic spinning, the high-refractive fiber and Sic abrasive grit are mixed and ball-milled and blend with other materials; and in the process of ultraviolet light polymerization, ultraviolet light penetrates into a deep layer of the fixed abrasive polishing pad to conduct ultraviolet curing under the influence of high-refractive materials, the curing rate and the homogeneous curing degree of the fixed abrasive polishing pad are effectively improved, and the using performance of the polishing pad is effectively improved. According to the preparation method for the fixed abrasive polishing pad, the hardness of a pencil in a dry state is 3-4 H, the hardness of a pencil in a hygrometric state is 3 H/3-5 B, the swelling ratio is 2.67-3.56%, and a long service life and a high working efficiency are achieved.

The invention relates to hollow porous microspheres coated with titanium dioxide nanoparticles and a preparation method thereof. Styrene, a bifunctional dimethacrylate organic monomer and a photoinitiator are dissolved in a solvent to obtain an electronic injection solution; modified titanium dioxide with two-bonded surface is added in and dispersed well in the electronic injection solution; electrostatic spraying is performed under visible light to obtain the hollow porous microspheres coated with titanium dioxide nanoparticles, composed of the titanium dioxide nanoparticles and crosslinkingspheres coating the surface of the titanium dioxide nanoparticles; the crosslinking spheres are hollow, have porous surface and have crosslinking structure formed by interconnection of polymer molecular chains; the titanium dioxide nanoparticles and the crosslinking spheres are connected via covalent bonds. The hollow porous microspheres coated with titanium dioxide nanoparticles and the preparation method thereof have the advantages that the method is simple, the preparation process is reasonable, and the finally obtained hollow porous microspheres have good delustering effect, can effectively shield medium- and long-wave ultraviolet, have high melting temperature and pyrolytic temperature and have great popularization value.

The invention relates to the technical field of stem cell culture, in particular to cell culture fluid, application of the cell culture fluid and a method of inducting DPSCs (Dental Pulp Stem Cells) to differentiate into neuron-like cells. The cell culture fluid provided by the invention comprises basic culture fluid, GDNFs (Glial Cell-Derived Neurotrophic Factors), Shh (Sonic hedgehog), EGFs (Epidermal Growth Factors) and cAMP (Cyclic Adenosine monophosphate). The culture fluid provided by the invention can be used for inducting the DPSCs to differentiate into the neuron-like cells. When the culture fluid is used for inducing the DPSCs, the form of the DPSCs starts to change from 12h; after the 24h from the induction, the form of the DPSCs is obviously changed; the cell refractivity starts to be enhanced; cell processes increase and grows and differentiate into the form of the neuron-like cells. Through western bolt detection, after 24h from the induction, the expression amounts of Nestin and MAP2 (Microtubule-Associated Protein 2) in the DPSCs are obviously increased. Therefore the culture fluid has the advantages of short period and high efficiency when being used for inducing the DPSCs to differentiate into the neuron-like cells.

The invention discloses sunscreen cream for fruit trees. The cream comprises the following components in parts by weight: 1-2 parts of lime powder; 1-2 parts of talcum powder, 0.8 to 1.5 parts of water soluble chitosan; 0.01 to 0.03 part of glycine betaine, 0.06 to 0.2 part of a humectant, 0.05 to 0.3 part of a dispersing agent, 0.2 to 0.5 part of a water-phase emulsifier, 0.2 to 0.5 part of starch, 0.8 to 1.5 parts of a seaweed extracting solution, 0.3 to 0.7 part of titanium dioxide, 0.2 to 0.6 part of a chelating agent and 3 to 4 parts of water. The prepared fruit tree sunscreen cream can prevent and control sunscald, promote fruit growth, improve the yield and quality of fruits, and achieve the integration of plant disease prevention and control and growth promotion.

The invention discloses an electric power overhaul device for electric power overhaul, and relates to the technical field of electric power overhaul innovation, the electric power overhaul device comprises an electric power overhaul device body, the left side of the electric power overhaul device body is fixedly connected with a sunscreen shell mechanism, and the sunscreen shell mechanism comprises a hollow microbead plate; a movable clamping mechanism is movably connected to the interior of the sunscreen shell mechanism, the movable clamping mechanism comprises a clamping wheel, and a cleaning mechanism is fixedly connected to the left side of the sunscreen shell mechanism. The movable clamping mechanism covers a cable by holding an annular grip with a hand, so that the two sides of the cable are attached to radian grooves in clamping wheels, the inner wall of a roller is attached to the upper portion of the outer surface of the cable at the same time, the annular grip is held by the hand to move, the electric power overhaul device body moves on the outer surface of the cable for overhaul, and the problem that when the cable is overhauled, the cable cannot be overhauled is solved. The problems that maintenance equipment often needs to be attached to a cable, huge energy of maintenance personnel is consumed, and operation is troublesome are solved, and the effects of facilitating operation and improving maintenance efficiency are achieved.

The invention provides a fiber-based corrugated photocatalytic module and a preparation method thereof. The photocatalytic module is mainly used for photocatalytic degradation of pollutants. Accordingto the preparation method of the fiber-based corrugated photocatalysis module in the invention, the photocatalytic module is composed of a plurality of catalyst units which are stacked in sequence and a module shell; the plurality of the catalyst units which are stacked in sequence are packaged in the module shell; each catalyst unit comprises a carrier and a nanometer TiO2 catalyst layer which is embedded into the carrier and is uniformly distributed on the surface of the carrier; the carrier is formed by bonding and compounding corrugated refractory fiber paper and planar refractory fiber paper; and the corrugated refractory fiber paper is prepared by processing the planar refractory fiber paper. The photocatalysis module has the characteristics of high activity, strong impact resistance, free assembling of specifications and sizes and the like.

The invention discloses a high-efficiency ytterbium fluoride mixed material and a preparation process thereof, and relates to the technical field of yttrium fluoride mixed materials. The mixed material aims to solve the problems that since most reflective films in the prior art are mainly used for reflecting light, although a certain sun protection function can be achieved, ultraviolet rays in the light cannot be isolated. The mixed material comprises, by weight ratio, 90-97% of ytterbium fluoride and 3-10% of titanium dioxide. Finely ground ilmenite is reacted with sulfuric acid under the conditions of introducing air continuously and carrying out stirring to produce soluble sulfate first, wherein the reaction equation is shown as FeTiO3+H2SO4=TiOSO4+FeSO4+2H2O; finally, when the titanium dioxide is prepared, the prepared titanium sulfide (TiOSO4) is mixed with water to undergo a hydrolysis reaction, and the reaction equation is shown as TiOSO4+2H2O=TiO2 H2O/+H2SO4.

A color-changing functional mask comprises a mask body and ear belts arranged on the two sides of the mask body, and the mask body is sequentially provided with an outer non-woven fabric layer, a middle melt-blown fabric layer and an inner non-woven fabric layer from outside to inside. The outer non-woven fabric layer is made of a non-woven fabric which is padded or sprayed by a light-sensitive color-changing sunscreen mixed finishing liquid and then dried, or is made of a non-woven fabric which is printed into a design pattern by a temperature-sensitive color-changing printing paste and then dried; the middle melt-blown cloth layer is melt-blown cloth with the gram weight of 20-60 g/m < 2 >, and the inner non-woven fabric layer is spunlace non-woven fabric or spunbond non-woven fabric or hot air non-woven fabric. According to the color-changing functional mask and the preparation method thereof, the problem that a mask is single in function can be solved, the mask has the light-sensitive sunscreen/temperature-sensing color-changing function while providing the protection effect, the filtering efficiency of the melt-blown filtering layer is not affected, and the bacterium filtering efficiency and the particle filtering efficiency of the mask are not affected; the personalized effect is achieved, and meanwhile the safety protection effect of the mask is guaranteed.

The invention relates to a preparation method for resin diamond. The preparation method comprises the step of preparing an eight-edged arc surface body and a light-emitting bottom surface body, wherein the light-emitting bottom surface body is embedded on the eight-edged arc surface body in an electrophoretic way. The preparation method has the benefits that the resin diamond prepared by the method adopts an arc surface eight-edged structure and replaces an existing six-edged structure, so that the light refraction, the strength, the hardness, the light resistance, the corrosion resistance and the service life of the resin diamond are greatly improved compared with those of existing resin diamond; experiments show that when the resin diamond is irradiated on a gloss meter at an angle of 45 degrees, and the light refraction is larger than 98 degrees which is far larger than a numerical value of 80 degrees of the existing resin diamond; meanwhile, in the impact resistance test of 1 kilogram of a free falling body, no damage phenomenon is discovered.

The invention discloses a shifter panel paint, which comprises a primer containing an acrylic resin, fumed silica, n-butyl alcohol and a white pigment, a color paint containing an acrylic resin, fumedsilica, n-butyl alcohol and a color pigment, and a varnish containing polyurethane, a light stabilizer, a heat stabilizer and a toughening agent, wherein the toughening agent is dioctyl phthalate. The paint disclosed by the invention is strong in toughness, good in matching property between coatings, strong in adhesive force between the coatings and between the paint and a panel, free from generating an interlayer interface under the action of external force, not easy to fall off, is uniform and transparent in color, excellent in appearance decoration performance and strong in weather resistance, can achieve good anti-aging effect under severe test conditions after being coated, and further has excellent scratch resistance. The invention also provides a coating process of the shifter panel paint, wherein the process is simple and easy to operate, uniform and stable in paint coating and excellent in product performance.

The invention relates to synthesis of resins, in particular to a high-refractive-index resin, a preparation method and application thereof. The resin is prepared from hydroxyl-terminated silicone oil, alkyl alcohol hafnium and a hydroxyl compound. The invention provides a resin, which has a structure of organic hafnium, silicone oil and R2, can be endowed with high refractive index by modifying the silicone oil, especially the aryl-containing silicone oil, is used for preparing a transparent film with high refractive index, is expected to be used as a main component for preparing various materials with high refractive index, and is applied to various optical lenses, optical communication devices, optoelectronic devices, electronic display screens, LED light-emitting element packaging, OLED device refraction coefficient matching and other optical materials.

The invention relates to a cambered-octagonal-surface resin diamond which is composed of the following raw materials in percentage by weight: 5-10% of silver solder, at most 5% of organic pigment, 55-60% of polyurethane resin, at most 1% of photoinitiator, 8-10% of calcium carbonate, at most 3% of assistant and the balance of organic diluent. The diamond surface of the resin diamond is a cambered octagonal structure, and thus, has higher refractivity, strength, hardness, light fastness, corrosion resistance and service life than the existing resin diamond. The experiment proves that when the resin diamond is irradiated by a gloss instrument from a 45-degree angle, the refractivity is greater than 98 degrees and is much greater than the value of 80 degrees in the existing resin diamond. Meanwhile, no phenomenon of damage is detected in a 1-kilo free falling body bounce impact elasticity test.

The invention discloses a special white high-performance cement-based material for an external wall facing brick reverse beating process. The white high-performance cement-based material is characterized by comprising white cement, white quartz sand, mineral powder, titanium dioxide, an additive and water. The white high-performance cement-based material comprises, by volume, 785-933 Kg/m<3> of the white cement, 976-1095 Kg/m<3> of the white quartz sand, 130-215 Kg/m<3> of the mineral powder, and 207-246 Kg/m<3>; and the titanium dioxide accounts for 1-3% of the mass of the white cement, and the additive accounts for 0.29-0.38% of the mass of the white cement. The white high-performance cement-based material has the characteristics of strong flowability, good anti-drawing performance and good decoration performance.