5results about How to "Relative density is small" patented technology

The present application relates to the technical field of electrophoretic particles, more particularly to an electrophoretic particle, a preparation method therefor, and an application thereof. Provided is an electrophoretic particle. The electrophoretic particle includes a shell layer and a core layer, which is wrapped in the shell layer. The core layer includes a plurality of core particles, and the density of the core particles is lower than a density of the shell layer. The electrophoretic particle includes the shell layer and the core layer wrapped in the shell layer, the core layer includes the plurality of core particles, and the structure of the plurality of the core particles makes the shell layer wrapping on surfaces of the plurality of the core particles form a folded structure, thus increasing a surface area of the core layer and improving the bonding tightness between the shell layer and the core layer, and making the shell layer of the resulting electrophoretic particle have relatively strong tightness. Based on this, an overall particle size of each electrophoretic particle can be appropriately reduced, the moving velocity of the electrophoretic particle under the action of the electric field can be improved, and it is ensured such electrophoretic particle will never have the light leakage problem, thereby improving the excellent performance of a device.

Provided is a solar panel. The solar panel includes a rigid frame and a cell. The rigid frame has an accommodation opening. The cell is disposed at the accommodation opening.

The invention belongs to the technical field of silicone sealants, and particularly discloses an environment-friendly single-component flame-retardant high-elasticity sealant and a preparation method thereof. The environment-friendly single-component flame-retardant high-elasticity sealant provided by the invention comprises the following components in parts by mass: 50 parts of alpha, omega-dihydroxy polydimethylsiloxane; 30-60 parts of activated calcium carbonate; 30 to 80 parts of a prefabricated silica gel composition; 4-10 parts of a cross-linking agent; 2-8 parts of a catalyst; and 0.2 to 2 parts of a coupling agent. The environment-friendly single-component flame-retardant high-elasticity sealant provided by the invention has the advantages of relatively low density, good mechanical strength, good extrudability, high elastic expansion and contraction rate and excellent flame-retardant and adhesive properties.

This invention belongs to the field of inorganic nanoparticle preparation technology, and relates to a ball milling modification method for bifunctionalized thin-layer hexagonal boron nitride: Hexagonal boron nitride powder, guanidine hydrochloride, and urea are continuously heated and stirred to obtain a homogeneous mixture of a eutectic solvent formed by guanidine hydrochloride and urea and the hexagonal boron nitride powder; this mixture is poured into a ball mill jar containing grinding balls and a liner, and a certain amount of ethanol and water are added as dispersants for high-energy ball milling; after the material is separated from the grinding balls, the milled material is vacuum filtered, dried, and the resulting powder is dispersed in water, then ultrasonicated, allowed to stand, vacuum filtered, and dried to obtain bifunctionalized thin-layer hexagonal boron nitride. This invention not only has the advantages of readily available raw materials and simple process, but also high efficiency, environmental friendliness, and low energy consumption. The hexagonal boron nitride obtained by this method has thinner layers, good biocompatibility, low relative density, and good thermal conductivity.

The invention relates to a novel preparation method of cicada slough cough-relieving granules, which comprises the following steps: taking cicada slough, scutellaria baicalensis, lumbricus, aster tataricus, stemona and myrobalan, adding ethanol, performing reflux extraction, filtering, concentrating filtrate, and merging concentrated solutions to obtain an alcohol extract and decoction dregs II; combining the medicine residue II with the medicine residue I of schizonepeta, residual liquid and stiff silkworm, adding water, decocting, filtering, concentrating filtrate under reduced pressure, and combining concentrated solutions to obtain a water extract; and mixing the alcohol extract and the water extract, and concentrating to obtain the cicada slough cough-relieving granule extract. And carrying out one-step granulation and drying on the cicada slough cough-relieving granule extract, sieving and finishing granules, and totally mixing to obtain the cicada slough cough-relieving granules. According to the method, multiple processes of mixing, spraying, forming, drying and the like are completed in one device, circulation of products among different devices is reduced, the risk of introducing microorganisms is reduced, the preparation time is shortened, the transfer rate of the index component baicalin is obviously increased, operation is easy, the yield of finished products is increased, and the method is suitable for industrial production.