50 results about "Opacifier" patented technology

The invention relates to the technical field of materials adaptive to extreme environments, and discloses cross-scale gradient co-doped multifunctional composite aerogel as well as a preparation method and application of the cross-scale gradient co-doped multifunctional composite aerogel. The multifunctional composite aerogel is co-doped with ultraviolet light-screening agent nano-particles, infrared light-screening agent nano-particles and functional nano-particles in a cross-scale gradient manner, and is used for performing selective filtration and full-spectrum regulation and control on sunlight penetrating through the transparent aerogel; the ultraviolet light-screening agent particles are titanium dioxide nano particles; the infrared opacifying agent particles are indium tin oxide nanoparticles; and the functional nanoparticles are silver nanorods. The composite aerogel provided by the invention improves the anti-ultraviolet performance and high-temperature heat insulation performance of the aerogel and provides a function of enhancing photosynthesis of plants, and meanwhile, the transmittance of the transparent aerogel in the visible light band of sunlight is not obviously reduced.

The invention relates to the technical field of PET (polyethylene terephthalate) bottle preparation, and discloses an anti-light-transmission PET bottle preparation method based on a two-way stretching process, raw material pretreatment: compounding a food-grade PETG (polyethylene terephthalate glycol) resin base material, a titanium dioxide or carbon black opacifying agent and auxiliaries containing a dispersing agent and the like, premixing for 5-10 minutes in a high-speed mixer at the speed of 800-1200 rpm, and carrying out vacuum drying for 4 hours at the temperature of 120 DEG C to obtain a premix with the water content of less than or equal to 30 ppm; melting and injection molding: plasticizing the premix through a twin-screw extruder, and carrying out injection molding to obtain a tubular preform with the wall thickness of 2-3mm; and cooling and heating: cooling the preformed blank in a water bath at 25 DEG C, and heating the surface layer to 90-00 DEG C and the core to 60-70 DEG C by using an infrared heating furnace. Stretching and blow molding are conducted, axial stretching is conducted at 50-80 mm / s, radial high-pressure air blow molding is conducted at 2.5-3.5 MPa, the temperature of a mold is 80-100 DEG C, and pressure maintaining is conducted for 5-8 seconds. And post-treatment: cooling in three sections, cutting off excess materials, and carrying out UV treatment to improve weather resistance. By optimizing dispersion of the opacifying agent and selecting a proper opacifying agent, light is effectively blocked, and the light transmittance is controlled at an extremely low level.

The invention discloses an anti-slip duplicated raw stone ceramic tile and a preparation method thereof, and belongs to the technical field of ceramic tile preparation. The anti-slip re-carved raw stone ceramic tile comprises a green body base layer, a glaze layer and a modified wear-resistant layer, and the green body base layer is prepared from the following materials in parts by weight: 40-60 parts of kaolin, 20-35 parts of quartz sand, 15-20 parts of potassium feldspar, 5-10 parts of calcite, 1-2 parts of wollastonite and 1-4 parts of talc; the glaze layer material consists of 15-22 parts of a glass forming agent, 3.2-8 parts of a fluxing agent, 2-7.2 parts of an opacifier, 0.4-2 parts of a coloring agent, 2-3.6 parts of an anti-skid complexing agent and 0.8-4 parts of a suspending agent; the modified wear-resistant layer material is composed of 1.2-2.1 parts of a modified wear-resistant agent and 5-10 parts of epoxy resin. The ceramic tile prepared by the method has excellent skid resistance, antifouling property and wear resistance.

A flexible heat barrier is configured to absorb and deflect heat energy and utilizes a multilayer construction wherein each layer provides a specific purpose. An outer layer configured for exposure to a heat flux includes a coating having an intumescent component and an opacifier component. An inner layer includes a foil that may include a high emittance coating to more effectively reflect radiation. A middle layer includes a insulating fabric layer that may include oriented fibers that can effectively polarize radiation and may include a plurality of layers of oriented fibers that are configured at an offset angle to deflect and reduce radiation transmission through the middle layer. A flexible heat barrier may also include a flexible gas barrier that includes a phase change material, such as frits that melt at a predetermined temperature and flow into gaps to reduce the permeability and further block heat flux.

Aiming at the problems that a traditional shading film is low in transparency, poor in mechanical property, non-degradable and the like, the dispersity of an opacifying agent (surface modified TiO and functionalized graphene) is optimized through a nano-composite technology, and a multi-layer co-extrusion structural design (such as PETG / shading layer / PETG) is combined, so that the shading performance of the shading film is improved, and the shading performance of the shading film is improved. The visible light transmittance (30-60%) is kept, and meanwhile efficient broad-spectrum blocking of ultraviolet rays (larger than or equal to 95%) and infrared rays (larger than or equal to 80%) is achieved. The process disclosed by the invention is compatible with conventional extrusion stretching equipment, has high shading property, mechanical strength, working stability and environmental protection property, and is suitable for the high-end packaging fields needing shading protection, such as food, medicine and electronic elements.

The invention discloses an aerogel composite material for a heat insulation pipe and a preparation method thereof, and belongs to the technical field of composite materials. According to the aerogel composite material for the heat insulation pipe, flexible ceramic fiber felt serves as a framework, pores of the framework are filled with a silicon dioxide aerogel matrix, and a flaky zirconium titanate infrared opacifying agent is evenly dispersed in the silicon dioxide aerogel matrix; wherein the radius-thickness ratio of the flaky zirconium titanate is greater than 20, and the mass fraction of the flaky zirconium titanate in the silicon dioxide aerogel matrix is 10-20%. The aerogel composite material for the heat insulation pipe has excellent ultralow heat conductivity and good flexibility and mechanical strength within an extremely wide service temperature range (-200 DEG C to 650 DEG C).

OPAQUE COMPOSITIONS AND METHODS FOR THESE The invention relates to opaque cleaning compositions substantially free of opacifying and pearlescent agents, and associated methods. The cleaning composition may comprise a synergistic combination of a surfactant system and one or more salts. The surfactant system may comprise a nonionic surfactant and two anionic surfactants, and the salt(s) may comprise a multivalent ion. In some examples, the cleaning composition is free of thickeners. Figure for abstract: None

The invention provides high-temperature-resistant mullite aerogel as well as a preparation method and application thereof, and belongs to the technical field of aerogel materials. According to the invention, the polymer solution is added, and the carbonized polymer not only can improve the high temperature resistance of the mullite aerogel, but also can be used as an infrared opacifying agent to reduce the thermal conductivity of the mullite aerogel at high temperature; the carbonized aerogel is impregnated with ceramic sol and is subjected to ceramic treatment, so that a ceramic coating layer and a micro-nano sheet layer can be constructed on the surface and in a network structure of a mullite aerogel nano skeleton, and the high-temperature resistance of the mullite aerogel is further improved. The result of the embodiment shows that the high temperature resistance of the mullite aerogel prepared by the invention is above 1400 DEG C and can reach 1500 DEG C.

The present invention relates to dentifrice compositions comprising fine ground alumina with a D90 particle size of less than 5 µm as an opacifier in an orally acceptable carrier.

The name of the invention is opaque ink formulations and related writing instruments. Provided herein is a high opacity persistent ink formulation comprising a solvent, a polymer-based opacifier, a colorant, a resin, and a humectant, where the ink formulation exhibits a viscosity of less than about 50 cP.

The present invention relates to a dentifrice composition comprising a fine ground alumina having a D90 particle size of less than 3 µm as a opacifier in an orally acceptable carrier.

A coating composition useful for coating a tablet such as a tablet, a capsule, a pill, a capsule, a confection or a grain, the coating composition comprising an opaque amount of cross-linked povidone having an average particle size of less than 10 [mu] m. Crosslinked povidone having an average particle size of less than 10 [mu] m is used as an opacifier and white pigment in the coating of the coated tablet in place of titanium dioxide.

The invention discloses an aerogel composite heat preservation and insulation material which comprises an outer reinforcing protective layer, a middle main heat insulation layer and an inner gas blocking sealing layer. The outer reinforcing protective layer is a modified ceramic fiber felt coated with a hydrophobic agent, the middle main heat insulation layer is a composite body of hydrophobic silicon dioxide aerogel, an infrared opacifying agent and reinforcing fibers, and the inner gas blocking sealing layer is an aluminum foil glass fabric composite film. The outer modified ceramic fiber felt provides mechanical damage resistance, the middle aerogel and reinforced fibers are compounded to enhance the overall structural strength, the inner aluminum foil glass fiber cloth composite film guarantees the structural stability, and the overall strength of the material is improved by 300% or above compared with that of a traditional aerogel composite material.

The invention relates to the technical field of shading of silicone rubber products, in particular to shading powder, a preparation method of the shading powder and a prepared silicone rubber opacifying agent. The shading powder is prepared from the following raw materials in parts by weight: 30 to 50 parts of shading filler and 3 to 8 parts of compatilizer; the shading filler is composed of titanium dioxide and light diffusion powder in a weight part ratio of (3-5): 1. The silicon rubber opacifying agent is composed of opacifying powder and mixed silicon rubber, and the dosage of the opacifying powder is 20-50wt%. The light diffusion effect of the light diffusion powder is utilized, light rays are refracted and dispersed, when the light rays meet titanium dioxide, the titanium dioxide is shielded, direct light is avoided, the good light ray shielding effect is achieved, after the titanium dioxide is compounded with the compatilizer, the obtained light-screening agent has the good light-screening effect and compatibility with organic matter, and when the light-screening agent is used in the silicone rubber material, the light-screening effect is good. And a better shading effect is achieved.

An aqueous personal care rinse off composition is provided, comprising: a dermatologically acceptable aqueous vehicle; a dermatologically acceptable cleaning surfactant; and a plurality of composite opacifier particles, wherein the composite opacifier particles comprise metal oxide particles that are partially or completely encapsulated by a wax; wherein the metal oxide particles are selected from the group consisting of zinc oxide, titanium oxide and mixtures thereof; wherein the metal oxide particles have a z average particle size of >100 nm as measured by dynamic light scattering; wherein the wax has a melting point temperature of 50 to 110° C.; and wherein the composite opacifier particles have a z average particle size of >100 nm to 2,000 nm as measured by dynamic light scattering.

The invention relates to the technical field of gradient structure heat insulation materials, and particularly discloses a preparation method of a gradient structure heat insulation powder filled heat-resistant honeycomb. The method comprises the following steps: synergistically dispersing fiber / feather-shaped aluminum oxide sol and silicon dioxide nano colloid, introducing a layered opacifying agent, carrying out spray instantaneous freezing and vacuum freeze-drying to prepare nearly spherical composite powder, filling honeycombs in a layered manner, and carrying out slow heating and segmented thermocuring under a vacuum condition to form the sparse glass phase micro-neck. The prepared heat insulation honeycomb with the opacifying agent type and content gradient in the thickness direction has the advantages of low heat conduction, vibration resistance, stability and low powder falling, and effectively inhibits high-temperature radiation heat transfer.

The present disclosure relates to an opaque, tack-resistant, and shatterproof glass product comprising a glass substrate, either coated or uncoated, and a protective coating based on a thermoplastic polymer composition, applied over the glass substrate. The thermoplastic polymer-based coating contains an opacifier and is designed to provide improved opacity, tack- resistance, and shatterproof properties. Additionally, the present disclosure pertains to a method for manufacturing such a glass product.

A dental opaquer composition for increasing the opacity of zirconium oxide ceramics. A process for producing a dental restoration to increase the opacity of the zirconium oxide ceramic by using the opaquer composition.

Improved silica-based opacifying agents are described. Opacifying agents are useful in water-based coating compositions to provide exceptional properties to a wood-based substrate. The films resulting from silica-based opacifying agents on a wood substrate unexpectedly provide improved chemical resistance and / or film clarity to the wood substrate surface. Methods for preparing and using silica-based opacifying agents are also described.

The invention discloses a special color master batch for PE temperature-resistant pipes and pipe fittings and a preparation method of the special color master batch, and belongs to the technical field of color master batches. The color master batch is prepared from the following components in parts by weight: 40 to 65 parts of carrier resin, 8 to 25 parts of opacifying agent, 1.5 to 2.5 parts of modified composite pigment and 0 to 2 parts of functional additive. The preparation method comprises the following steps: reacting a functional material with a silane compound in an alkaline ethanol solution to form a coating solution, carrying out ultrasonic-assisted mechanical stirring treatment on the coating solution and the composite pigment, and drying and ball-milling to obtain the modified composite pigment. Finally, the pigment, carrier resin, an opacifying agent, an antioxidant, a light stabilizer and the like are subjected to segmented mixing, melt extrusion and granulation, and a finished product is obtained. Compared with the prior art, the dispersity, the interface bonding force and the weather resistance and wear resistance of the pigment are remarkably improved, and the obtained color master batch is uniform in coloring, excellent in stability and particularly suitable for high-performance PE temperature-resistant pipes and pipe fittings.

The invention discloses light-shading low-expansion-coefficient glass paste and a preparation method and application thereof, and belongs to the technical field of heat insulation composite materials, and the light-shading low-expansion-coefficient glass paste comprises the following components in percentage by mass: 5-30% of light-screening agent powder, 1-40% of glass powder, 30-70% of organic carrier and 0-3% of assistant. The surface of an aerogel composite material is uniformly coated with the slurry, a ceramic layer formed after sintering can improve the heat insulation performance of the aerogel composite material in a high-temperature environment, the surface of a base material can be effectively protected against corrosion damage, and powder falling of the aerogel material is prevented.

The invention relates to the technical field of polyester materials, in particular to a multilayer structure TPEE shading material and a preparation method thereof. The problem that the mechanical property and the aging resistance of the TPEE shading material cannot be considered at the same time is solved. PET, modified aluminum oxide, silane modified aluminum borate whiskers and maleic anhydride grafted polyethylene are subjected to hot press molding to prepare an enhancement layer; carrying out hot press molding on TPEE, a composite opacifying agent, maleic anhydride grafted POE, nano silicon dioxide and an ultraviolet absorbent to prepare a shading layer; carrying out film casting on TPEE, polytetrafluoroethylene powder, a light stabilizer, an ultraviolet light absorber II and an antioxidant to obtain an anti-aging layer; the enhancement layer, the shading layer and the anti-aging layer are sequentially stacked, and the TPEE shading material with the multi-layer structure is obtained through composite hot press molding, so that the mechanical property of the TPEE shading material is remarkably improved, and photo-oxidative degradation and thermal oxidative degradation are effectively inhibited.

The invention provides an opacifier doped aluminum-silicon aerogel composite material and a preparation method thereof, and relates to the field of aerogel materials. The preparation method of the opacifying agent doped aluminum-silicon aerogel composite material comprises the following steps: preparing graphene oxide doped aluminum-silicon sol, preparing a composite fiber felt, dipping the sol, aging the gel, and carrying out supercritical drying. According to the opacifying agent doped aluminum-silicon aerogel composite material and the preparation method thereof, the technical defects existing in existing related means for inhibiting phase change of aluminum oxide can be effectively overcome, and the high-temperature stability, the heat insulation performance and the mechanical performance of the opacifying agent doped aluminum-silicon aerogel composite material are further improved on the premise that the high specific surface area is obtained.

The application discloses a preparation method of high-temperature-resistant high-strength expanded vermiculite-based light heat-insulation composite material, relates to the field of light heat-insulation composite material, and the preparation method is characterized in that expanded vermiculite, silicon powder, fumed silica, chopped high-silica fiber and a binding agent sodium silicate and an opacifier silicon carbide are uniformly stirred and mechanically pressed to form; the adding sequence is from large to small according to the density, the silicon carbide and the silicon powder with the largest density are firstly added, then the expanded vermiculite is added, then the fumed silica is added, and finally the binding agent sodium silicate and the chopped high-silica fiber are added; the expanded vermiculite is used as the aggregate of the expanded vermiculite-based light heat-insulation composite material, different types and particle sizes of material particles are uniformly mixed and then pressed to form, heat dissipation through a solid phase conduction path is reduced, heat loss is effectively inhibited, the overall heat-insulation and heat-preservation effect and the mechanical properties of the material are improved, and the heat-resistant temperature of the material is also improved.

The invention relates to the technical field of refractory bricks, in particular to a microporous silicon carbide abrasive brick for a garbage high-temperature cracking furnace, which comprises the following components in percentage by weight: 10-20% of mullite; 10 to 15% of andalusite; 3 to 5 percent of alpha-Al2O3 micro powder; 8 to 12% of kaolinite; 7 to 9% of bauxite; 4-6% of modified phosphate tailing ceramsite; 1-3% of a binding agent; 0.5-1% of an infrared opacifying agent; silicon carbide: the balance; the preparation method of the microporous silicon carbide wear-resistant brick comprises the following steps: S1, preparing a material A, a material B and a material C; s2, preparing a pre-pressed brick; s3, preparing a molded brick; and S4, obtaining a finished product. According to the silicon carbide brick prepared by the invention, the modified phosphate tailing ceramsite is added, so that molten metal or furnace slag can be prevented from permeating at high temperature; the infrared opacifying agent is added, so that middle and far infrared radiation can be reflected, the heat efficiency of the hearth is improved, a structure with a compact surface layer and a porous middle part is formed through differential proportioning of the brick body, and strength and functionality are both considered.

The invention relates to a medicine film coating, in particular to a titanium dioxide-free white film coating formula. In the formula of the titanium dioxide-free white film coating, the dry powder formula of the white film coating comprises the following components in percentage by weight: 20-70% of a film material, 1-30% of a plasticizer, 20-50% of an opacifying agent, 0-50% of an anti-sticking agent and 0-10% of a common auxiliary agent for improving the coating effect. According to the white film coating formula disclosed by the invention, the components with specific requirements are mixed according to a certain proportion, so that the whiteness of the obtained white film coating is the color and luster shown after the components in the formula interact; in the formula, the film-forming polymer can form a crystal region interface beneficial to light scattering, and the calcium carbonate with specific morphology and particle size is combined, so that the transmission of light can be greatly reduced, and finally a product of which the whiteness is basically equivalent to that of the titanium dioxide-containing film coating is obtained, so that the product can meet the ever-increasing health requirements of people and improve the brand competitiveness.

The invention discloses a high-shading PETG shrink film and a preparation system thereof, and relates to the technical field of plastic film production, the high-shading PETG shrink film comprises a material conveying barrel, a first conveying screw rod rotationally mounted in the material conveying barrel, a driving part mounted at one end of the material conveying barrel and connected with the first conveying screw rod, an extrusion die head mounted at the other end of the material conveying barrel, and a second conveying screw rod mounted at the other end of the material conveying barrel and connected with the second conveying screw rod; the first conveying screw rod and the second conveying screw rod are installed in the material conveying barrel, a supporting and mixing mechanism is installed between the first conveying screw rod and the second conveying screw rod, the supporting and mixing mechanism is in transmission connection with the inner wall of the material conveying barrel, and the reciprocating filtering assembly is movably installed between the supporting and mixing mechanism and the second conveying screw rod. The light-screening agent is limited to be rutile type titanium dioxide in a specific particle size range and the adding proportion of the rutile type titanium dioxide, the shrinkage performance of the thin film is considered while high light-screening performance is guaranteed, and the preparation system is provided with the supporting and mixing mechanism driven by the first conveying screw rod, so that materials are forcibly mixed and stirred in the conveying process.

This invention discloses a low-temperature fired, zirconium-free, low-expansion opacifying glaze, which is formed by adhering the glaze to a sanitary ceramic body and then firing it. The glaze does not contain zirconium silicate opacifier and belongs to a zirconium-free glaze system. The glaze comprises dry materials and additives. The dry materials include the following components: 20-40 parts potassium feldspar, 5-20 parts calcined talc, 20-50 parts cordierite, 10-30 parts calcined alumina, 3-15 parts washed kaolin, 5-20 parts calcite, 4-15 parts zinc oxide, and 2-10 parts tricalcium phosphate. This invention also discloses a method for preparing the above-mentioned low-temperature fired, zirconium-free, low-expansion opacifying glaze. The present invention discloses a low-temperature fired zirconium-free, low-expansion opaque glaze and its preparation method. Tricalcium phosphate is used as a phase separation inducer and zinc oxide is used as a zinc source. During the firing process, the glaze undergoes submicron-level phase separation and in-situ zinc spinel formation reaction, which, together with the cordierite crystal phase, achieves dual regulation of opacity whiteness and low thermal expansion performance, thus constructing a zirconium-free glaze system.

The application discloses a high-shading PETG shrink film and a preparation system thereof, and relates to the technical field of plastic film production. The preparation system comprises a feeding cylinder, a first conveying screw rod rotatably installed in the feeding cylinder, a driving element connected with the first conveying screw rod and installed at one end of the feeding cylinder, an extrusion die head installed at the other end of the feeding cylinder, a second conveying screw rod installed in the feeding cylinder, a supporting and mixing mechanism installed between the first conveying screw rod and the second conveying screw rod, and a reciprocating filtering assembly movably installed between the supporting and mixing mechanism and the second conveying screw rod. The application limits the shading agent to be rutile titanium dioxide with a specific particle size range and the adding proportion, so that the shrinkage performance of the film is considered while the high-shading property is ensured. The supporting and mixing mechanism driven by the first conveying screw rod is arranged in the preparation system, so that the forced mixing and stirring of the material are realized in the conveying process.

The method of manufacturing an insulated storage container for storage of pressurized and / or liquified fluids, comprises the steps of: (1) providing a storage container having a first and a second end surface and at least one container surface extending between the first and the second end surface; (2) applying insulaon to at least one surface of said at least one container surface and the first and the second end surface Herein the insulaon is applied as a composite insulaon composion comprising a microporous powder mixed into a gelled carrier material. The microporous powder comprises at least an opacifier, inorganic fiber and parculate silica material from the group of pyrogenic silica and precipitated silica, said parculate silica material oponally further comprising alumina, wherein said microporous powder and / or at least part of said parculate silica material is hydrophobic. The gelled carrier material is adhered to said at least one surface of the storage container.