51results about How to "Easy to release" patented technology

The invention discloses a preparation method of a coated ternary nickel-cobalt-manganese lithium oxide positive electrode material. The preparation method comprises the following steps of (1) preparing a ternary nickel-cobalt-manganese lithium precursor; (2) preparing an oxide-coated ternary nickel-cobalt-manganese lithium precursor; and (3) preparing an ion conductor oxide-coated ternary nickel-cobalt-manganese lithium positive electrode material. By the preparation method of the positive electrode material, a lithium ion is easy to de-intercalate from a surface layer of the material, and thehigh-temperature circulation performance of the material is improved; a coating layer does not react with an electrolyte, interface side reaction caused by contact of the main body material and the electrolyte is reduced, and the safety of the material is improved; the processing performance of a pole plate during the uniform coating process is improved, and the high-temperature circulation performance of the material after being assembled into a battery is improved; and the prepared positive electrode material does not need to be subjected to a roasting process for two times, the energy consumption is reduced, and the cost is reduced.

The invention discloses a method for refining polymethoxy dialkyl ether. According to deep research on an extraction unit process of polymethoxy dialkyl ether in the prior art, influencing causes of low extraction rate of the extraction unit and low purity of the extraction product are found, and a refining and extracting process through which the extraction rate and product purity can be obviously improved is further provided. Excessive ammonia gas is added into a balance product of the polymethoxy dialkyl ether, so that the aim of removing formaldehyde in the polymethoxy dialkyl ether balance system is achieved. Meanwhile, the acid value of the reaction product is effectively reduced, so that the requirement on the national standard is met.

The invention relates to a carbonyl iron powder composite wave-absorbing material with low dielectric constant and high magnetic loss and a preparation method thereof. The preparation method comprisesthe following steps: using carbonyl iron powder as a modified absorbent, using ethyl orthosilicate as a powder coating silicon source, adding carbonyl iron powder into deionized water to form a mixture, and stirring the mixture to be evenly dispersed and mixed; adding gamma glycidyl ether oxypropyl trimethoxy silane dissolved by ethanol and tetraethoxysilane into the mixture according to a certain ratio, and then carrying out a hydrothermal reaction; filtering and collecting solids after the reaction is finished, and washing with ethanol and distilled water in sequence; and putting the obtained solid product into a vacuum drying oven, and fully drying at a constant temperature to obtain the SiO2-coated carbonyl iron powder. According to the invention, the problems of low overall magneticloss performance of the absorption material prepared based on carbonyl iron powder in each frequency band and magnetic conductivity and magnetic loss mismatch caused by over-high real part and imaginary part of the dielectric constant can be solved.

The invention discloses a hole sealing method based on a non-Newtonian fluid material with dilatancy. The material with dilatancy is adopted for sealing a blasthole. In the explosive detonation period, the hole sealing material is solidified instantly, and after detonation is completed, the hole sealing material is in a liquid state. The non-Newtonian fluid material with dilatancy has a shear thickening characteristic, and dispersion phases of nanometer silicon dioxide, corn starch, cement base and the like are taken as a thickening agent; polar solvent such as water, polyethylene glycol, polypropylene glycol, glycerinum and the like is taken as a dispersion medium. By adjusting the matching ratio of material components, a flexible plastic material bag is adopted for packaging the materialwith dilatancy to form a columnar cartridge shape. Under the (impacting) loading effect, the hole sealing material is converted into a solid state from a liquid state, is better in anti-impacting performance, good in sealing effect and beneficial for doing work through expansion by detonation gas of explosive, and improves the detonating efficiency. After explosive detonation, the hole sealing material is in a liquid state, the failure detonation treatment can be conveniently conducted under the drilling-and-blasting condition, and the hole sealing material can be conveniently recycled.

The invention relates to laser paper printing ink and a preparation method thereof. The laser paper printing ink comprises the following ingredients (by weight): 15-20 parts of waterborne acrylic resin, 10-20 parts of waterborne polyurethane resin, 10-18 parts of dipropylene glycol diacrylate, 15-20 parts of a pigment, 6-10 parts of nanometer titanium dioxide, 2-4 parts of nano-zinc oxide, 8-10 parts of a filler, 14-20 parts of a reactive diluent, 3-5 parts of a photoinitiator, 1-3 parts of a photosensitizer, and 0.1-0.2 part of an auxiliary agent. The invention is beneficial for the ink to adhere to the surface of a printed material by the surface tension at the initial stage of drying; and in the drying process of the printing ink which is thoroughly adhered to the surface of the printedmaterial by solvent volatilization and penetration into the printed material, the formed net structure can make the solvent to be volatilized at a proper drying rate. In addition, due to high viscosity, cohesiveness of the printing ink penetrating through the printed material can be improved, and the color exposure problem is reduced.

The invention discloses an electric heating appliance provided with a diversion trench and a movable detection device. The fluid diversion trench bulging outwards is formed in a pot, a groove capableof accommodating the diversion trench is formed in an appliance body, and the movable steam detection device is arranged at the groove. Turnover of liquid objects is facilitated, the use experience ofa consumer is improved, the flowing direction of steam is regulated, and possible harm of high-temperature steam to a user is avoided; more importantly, by means of a dynamic design scheme of mutualmatching of the diversion trench, the groove and the movable detection device, a novel detection scheme that steam directional flowing, detection, uncovering and covering of a pot lid and taking and placing of the pot are very free and convenient and rapid response can be given to the liquid heating process and the boiling state is formulated. The defects of an existing detection technology of theelectric heating appliance are effectively overcome, and reliable and stable technical guarantee is provided for application of a diversified heat source technology of products and containers made ofdifferent materials.

In order to provide a liquid elastomer molding method which enables a reduction in the volume of discarded molding material and, moreover, does not involve an increase in the planar size of a mold when using the mold to simultaneously mold a plurality of molded articles and thus has excellent production efficiency, this method uses a mold to mold a molded article comprising a liquid elastomer, the mold (1) being an injection molding mold, with a plurality of product cavity spaces (51) being provided in a line in the clamping and opening direction of the mold and a plurality of molded articles being molded simultaneously using the mold. The mold is provided with a sprue (21), runners (31), and gates (41) which lead to the plurality of product cavity spaces, and the runners are provided with perpendicular runner sections (32) extending from the sprue in a direction perpendicular to the clamping and opening direction of the mold and parallel runner sections (33) extending from the perpendicular runner sections in a direction parallel to the clamping and opening direction of the mold, the parallel runner sections being disposed on the outer side of the plurality of product cavity spaces.

The invention discloses a flame-retardant hollow yarn for sowing garments. The flame-retardant hollow yarn comprises a support plate, wherein a rotating rod is moveably connected with the left side ofthe top of the support plate through a bearing; a hollow yarn body is arranged on the surface of the rotating rod; the hollow yarn body comprises a hollow yarn core layer; an antibacterial layer is fixedly connected with the surface of the hollow yarn core layer; an elastic layer is fixedly connected with one side, far away from the hollow yarn core layer, of the antibacterial layer. With the combination of the hollow yarn body, the hollow yarn core layer, the antibacterial layer, the elastic layer, an outer yarn layer and a fireproof layer, the purpose of improving the flame retardancy of the hollow yarn is achieved, the phenomenon that sowing lines of a garment are loosened as a conventional hollow yarn is broken with fire because of poor flame retardancy is effectively avoided, the experience of a user upon garments is ensured, requirements of present markets are met, the practicability and the use capability of the hollow yarn are improved, and the problem that the conventional hollow yarn is poor in flame retardancy is solved.