6results about How to "High hiding power" patented technology

This application discloses a high-coverage calcium carbonate-titanium dioxide composite pigment and its preparation method. The composite pigment includes a calcium carbonate core layer and a titanium dioxide shell layer coating the outer surface of the calcium carbonate core layer. The calcium carbonate core layer is obtained by sequentially acid-activating and modifying a calcium carbonate base layer with a hydrophilic additive. The hydrophilic additive is selected from at least one of polyhydroxy compounds, polyelectrolytes, or small molecule surfactants. The small molecule surfactant contains carboxyl or sulfonic acid groups, and its molecular weight is ≤1000. The calcium carbonate-titanium dioxide composite pigment provided by this application exhibits a strong interfacial bond between calcium carbonate and titanium dioxide, and the titanium dioxide shell layer is not easily detached, resulting in high titanium dioxide utilization and fully leveraging the high hiding power of titanium dioxide to improve the hiding power of the composite pigment. Furthermore, the strong interfacial compatibility between calcium carbonate and titanium dioxide and excellent dispersion stability in aqueous systems improve the applicability of the composite pigment in aqueous systems.

The invention provides a whitening type composite modifier as well as a preparation method and application thereof, and belongs to the technical field of inorganic material modification. The whitening type composite modifier provided by the invention is prepared from the following preparation raw materials in parts by mass: 55 to 65 parts of titanium dioxide, 2 to 5 parts of a fluorescent whitening agent, 15 to 25 parts of an aluminate coupling agent, 5 to 10 parts of a titanate coupling agent, 10 to 20 parts of stearic acid, 2 to 5 parts of a dispersing agent and 1 to 2 parts of an antioxidant. The whitening type composite modifier can be applied to modification of various inorganic powder, the whiteness of the inorganic powder treated by the whitening type composite modifier is obviously improved, and the dispersity and the stability are obviously improved.

The invention belongs to the field of sand mills, and particularly relates to a sand milling structure for grinding water-based paint raw materials, a using method and a sand mill. The sanding structure for grinding the water-based paint raw materials comprises a grinding cylinder, a grinding rotating disc arranged in the grinding cylinder, a feeding pipe arranged on one side of the grinding cylinder and a discharging pipe arranged on the other side of the grinding cylinder, and the grinding rotating disc is of a rod pin type or turbine type structure; a plurality of jet exciters are arranged in the inner wall of the grinding cylinder, and a one-way water inlet pipe is connected to an excitation cavity of each jet exciter and used for injecting cleaning fluid into the excitation cavity in the cleaning stage. The jet flow exciter is integrated on the inner wall, in direct contact with materials, of the grinding cylinder, so that the same structure has the dual functions of actively enhancing flow field disturbance during grinding and high-pressure directional flushing during cleaning, and integration of grinding efficiency improvement and equipment self-cleaning is achieved.

The invention provides a laminated film, a cured product and an electronic component, and particularly relates to the technical field of circuit board protective films. The laminated film comprises a light-transmitting layer and a light-shielding layer which are sequentially laminated, the first glossiness of one surface of the light-transmitting layer away from the shading layer is less than or equal to 15; the light transmittance of the light transmitting layer is 70-90%, and the light transmittance of the light shielding layer is 20-60%. According to the laminated film provided by the invention, the first glossiness is controlled to be less than or equal to 15, and the surface glossiness (namely the second glossiness) after final curing is maintained at a relatively low level, so that an ideal matte appearance is obtained. Meanwhile, the light transmittance of the light-transmitting layer is controlled to be 70-90%, light can reach the bottom in the exposure process, curing of the shading layer is improved, and smaller and more complete windowing patterns are formed; the light transmittance of the light shielding layer is controlled to be 20-60%, the light transmittance is low, but the covering power is high, and enough covering power is provided for a finally formed cured product.

The present application relates to a method for improving the performance of aerogel coatings using water-based color paste, including four steps of water-based color paste nanoparticle preparation, environmentally friendly colored water-based color paste preparation, composite phase change aerogel slurry preparation and water-based color paste addition to aerogel; by adding water-based color paste nanoparticles, environmentally friendly dispersants, adding microcapsule phase change materials in the preparation of aerogel, and adding dispersants, bark extraction and various additives in the mixing process of the last two; the water-based color paste is added to the aerogel, which provides a healthier and more environmentally friendly coating option, optimizes the brightness and durability of the coating color, and can improve the appearance quality and service life of the electric products related to water-based color paste coatings, and has a broad market prospect and application demand.

This invention relates to the field of architectural ceramics technology, disclosing a titanium sphene crystal frit, its preparation method, and its application. The raw materials include kaolin, titanium dioxide, quartz, potassium feldspar, calcite, and wollastonite. By pre-firing the titanium sphene crystal frit using this formula, the titanium sphene crystals are pre-dissolved in the glass phase. During the subsequent glaze firing process at 1200℃, the titanium sphene crystals melt again and precipitate a second time, resulting in an opaque glaze layer. This secondary crystallization enhances the chemical stability of the titanium sphene crystal frit during subsequent glaze firing, leading to a more stable increase in the solar reflectance of the fired glaze. This solves the problem of unstable reflectivity in glazes when directly using titanium sphene powder or combining it with titanium dioxide and titanium frit to directly form titanium sphene crystals during glaze firing.