4 results about "Strontium chloride" patented technology

The utility model discloses anhydrous strontium chloride discharging equipment, including the feed frame, the inner wall fixedly connected with filter screen of feed frame, the upper side of filter screen is equipped with the plugging mouth, the inner wall fixedly connected with baffle of plugging mouth, the lower side fixedly connected with drive motor of feed frame. The utility model discloses, be provided with drive motor, cleaning frame, can realize the rotation of cleaning frame with the help of drive motor, and cleaning frame can scrape the outside of filter screen and carry out the operation of removing, in the process of rotating, through the cooperation of stressed member, annular groove, trapezoidal ring groove and sealing block etc. parts, can automatically realize the opening and sealing of one side of cleaning frame, complete the efficient cleaning of impurity, and the inside of cleaning frame, linkage mouth and feed frame form the separation state between, make the time of cleaning impurity and normal processing time can coincide, the length of time of equipment shutdown because of cleaning is greatly shortened, effectively promoted the overall production efficiency.

This invention belongs to the technical field of hydrogel materials for myocardial repair, specifically relating to an oxygen-generating hydrogel for myocardial repair and its preparation method. The invention involves modifying GelMA with KH570 in PBS buffer to prepare KH570-GelMA, and oxidizing cobalt chloride, strontium chloride, sodium hydroxide, and sodium hypochlorite in aqueous solution to prepare CoOOH-Sr nanosheets. The CoOOH-Sr nanosheets are then mixed with the KH570-GelMA solution and a photoinitiator is introduced for in-situ curing to prepare the oxygen-generating hydrogel. By modifying GelMA with KH570, the crosslinking density is controlled, increasing the hydrogel porosity. The introduction of CoOOH-Sr functional molecules enables controlled oxygen production, alleviating local hypoxia, improving the cell compatibility and bioactivity of the hydrogel, promoting cardiomyocyte proliferation and tissue regeneration, and allowing for the construction of injectable or patch-like hydrogel patches suitable for myocardial infarction models.

This invention relates to the field of organic pigment preparation, and discloses a water-based ink pigment, Red 48:3, and its preparation process. The raw materials are 2B acid, 2,3-acid, strontium chloride, SOLSPERSE 27000, DISPERBYK-190, polyetheramine-crown ether compound, water-based acrylic resin emulsion, and silane coupling agent KH-560. The process includes: synthesizing the polyetheramine-crown ether compound and resin emulsion; preparing a diazo solution of 2B acid and coupling it with a sodium 2,3-acid solution; adding strontium chloride to the parent dye for lake formation; and after pulping the initial filter cake, sequentially adding a dispersant, a modifying compound, a resin emulsion, and a coupling agent for surface treatment. This invention achieves stable anchoring through the strong complexation of the crown ether ring with strontium ions on the pigment surface, and the resin coating enhances the dispersion stability and compatibility of the pigment in the aqueous medium. The finished product has strong color development and storage stability, making it suitable for high-end water-based inks.

The application relates to the technical field of preparation of low-temperature energy storage phase change materials, and particularly discloses a preparation method of a low-temperature energy storage phase change material, which is characterized by the following specific preparation method: weighing: accurately weighing calcium chloride hexahydrate, ammonium chloride, potassium chloride, strontium chloride hexahydrate, a surfactant, diatomite, fly ash, expanded graphite, an emulsifier and a dispersant according to the formula proportion; melting: placing the calcium chloride hexahydrate in a 250ml beaker, heating in a 60 DEG C digital constant-temperature water bath, and opening a magnetic stirrer after complete melting; mixing: after the system temperature is stabilized, adding the ammonium chloride, the potassium chloride, the surfactant, the diatomite, the fly ash, the expanded graphite, the emulsifier and the dispersant into the flask in batches, and constant-temperature stirring for 30 minutes. The preparation method of the low-temperature energy storage phase change material ensures that the material can rapidly crystallize and release heat when reaching the set phase change temperature, and avoids the temperature control failure problem caused by excessive supercooling.