3results about How to "Does not destroy activity" patented technology

The application belongs to the technical field of functional coating and specifically provides a black phosphorus heterojunction water-blocking and oxygen-blocking coating and a preparation method thereof, which comprises the following steps: 1) mixing chloroform and DMF, adding bulk BP for ultrasonic treatment, collecting supernatant by centrifugation, and drying to obtain BP nanosheets; dispersing the BP nanosheets into a mixture of ethanol, water and SDBS, adding ammonia hydroxide, HCHO and NiCl2 after stirring, and then performing a reaction by heating, collecting the solid by centrifugation, and washing to obtain a base material; 2) drying the base material, placing it into a sealed container containing silicone oil, and performing a reaction by heating; transferring it into chloroform containing 1,12-dodecylamine for a reaction; then transferring it into acetone for immersion, taking it out, blowing dry, and obtaining a barrier material; 3) transferring the barrier material to the surface of a substrate to obtain a coating. The coating prepared by the application can effectively block the erosion of oxygen and water molecules on the black phosphorus heterojunction, so that the black phosphorus heterojunction can maintain better infrared detection performance and stability.

The invention provides hypoallergenic milk whey protein powder and a preparation method thereof. The hypoallergenic beta-LG protein powder comprises beta-lactoglobulin which is non-covalently bound with a small molecule substance, the small molecular substance is ascorbic acid, erythritol or beta-carotene. Non-covalent binding of small molecular substances and beta-LG is utilized, the sensitization of beta-LG is reduced by pertinently covering a beta-LG epitope and an IgE binding site, the hypoallergenic beta-LG is mixed with lactoferrin and alpha-lactalbumin, then part of immunoglobulin is added, and after freeze-drying, the hypoallergenic milk formula whey protein powder is prepared. The functional dairy product meets the national food safety standard, is suitable for multiple people in exercise and fitness, daily nutrition supplement and special physiological stages, and has wide application prospects in the functional dairy product processing industry.

This invention provides a high-pressure compacted sodium iron pyrophosphate cathode material, its preparation method, and its application. The preparation method of the high-pressure compacted sodium iron pyrophosphate cathode material includes: weighing sodium, iron, and phosphorus sources according to the stoichiometric ratio of sodium iron pyrophosphate, adding carbon source and solvent, and mixing and grinding to obtain a precursor slurry; spray drying the precursor slurry to obtain precursor powder; compacting and granulating the precursor powder under a pressure of 10 MPa to 80 MPa to obtain denser precursor particles; and finally sintering at 500℃ to 650℃ for 6 to 15 hours under an inert atmosphere. This invention effectively eliminates internal cavities and interparticle gaps in the precursor through compaction and granulation, and controls the pressure within the range of 10 MPa to 80 MPa. The subsequent sintering process improves the density of the cathode material while controlling the impurity phase content to below 1 wt% and maintaining good electrochemical performance.