3results about How to "Sensitive to temperature" patented technology

The invention provides a composite particle as well as a preparation method and application thereof. The composite particle comprises a porous inorganic oxide particle and an antioxidant located in the porous inorganic oxide particle, and the surface of the inorganic oxide particle is coated with a polymer shell; the material of the polymer shell is a product obtained by click polymerization of silane molecules with sulfydryl, a thermal response vinyl monomer and a non-thermal response vinyl monomer, and the silane molecules with sulfydryl are connected with the surfaces of the inorganic oxide particles through chemical bonds; when the composite particles are heated, the polymer shell clusters to expose the pores. When the composite particles are applied to a QD-LED packaging body, the oxidation resistance, the service life and the optical performance of a device are remarkably improved.

This invention provides a temperature-sensitive high-temperature resistant suspension stabilizer for oil-based drilling and completion fluids and its preparation method. The preparation method includes the following steps: a) mixing dimer acid monomers and acid anhydride monomers, stirring at 80-90°C until fully mixed, and then purging with nitrogen to remove oxygen, obtaining a first mixture; b) adding a dimer fatty amine monomer to the first mixture obtained in step a, stirring evenly, obtaining a second mixture; c) slowly adding polyethylene polyamine to the second mixture obtained in step b, then heating to 130-180°C, stirring and reacting, removing water from the product solution after the reaction, obtaining the product; d) cooling the product obtained in step c to room temperature, thus obtaining the temperature-sensitive high-temperature resistant suspension stabilizer. The beneficial effects of this invention are: the prepared temperature-sensitive high-temperature resistant suspension stabilizer for oil-based drilling and completion fluids has excellent high-temperature resistance and can effectively enhance the suspension stability of oil-based drilling and completion fluids under high-temperature conditions.

The utility model relates to the technical field of fusion heads, in particular to a fusion head of a fusion machine, which comprises a base, a main body fixedly mounted on the surface of the upper end of the base, a top cover fixedly connected to the surface of the upper end of the main body, a groove formed in the surface of the upper end of the top cover, and a blowing block fixedly mounted on the outer side wall of the main body close to the upper end. Two air pipes are fixedly connected to the bottom surface of the air blowing block, an internal fixing seat is fixedly connected to the position, located on the upper end surface of the base, in the main body, a mounting groove is formed in the upper end surface of the internal fixing seat, an internal magnetic core is inserted into the mounting groove, the upper end of the internal magnetic core is fixedly connected with the top cover, and the internal magnetic core is made of an amorphous nanocrystalline special material. The temperature sensor is standardized in structure, accurate in internal magnetic core position, sensitive in temperature response, low in development cost and high in cost performance, has a blowing cooling function, is fast in cooling, and prolongs the service life, and the temperature sensing line is in the dead center area.