9results about How to "Long term storage" patented technology

This invention discloses a liquid-phase functional urethane antifouling coating, its preparation method, and its application. The preparation method includes the following steps: S1. Mixing monohydroxy-terminated polydimethylsiloxane and polypropylene glycol and removing water to obtain solution A; S2. Dissolving hexamethylene diisocyanate trimer in xylene to obtain solution B; slowly adding solution B dropwise to solution A while continuously stirring; S3. After the addition is complete, heating the reaction to 80-85°C and continuously stirring to ensure a complete reaction, finally obtaining prepolymer C; S4. Adding curing agent polyaspartic acid ester, leveling agent, and defoamer to solution C, and stirring to obtain solution D; S5. Applying solution D to the surface of a substrate and curing at room temperature for 2 hours to obtain a liquid-phase functional urethane antifouling coating. The antifouling coating of this invention can cure at room temperature, is environmentally friendly, inhibits the adhesion of fouling organisms, and has good anti-icing properties.

The application discloses a storage energy power generation system capable of realizing carbon dioxide underground storage and an operation method thereof. The storage energy power generation system capable of realizing carbon dioxide underground storage comprises a high-pressure carbon dioxide storage underground storage and a normal-pressure and normal-temperature carbon dioxide storage gas storage. In the storage energy state, carbon dioxide is stored in the underground storage. In the energy release state, the underground storage releases part of the carbon dioxide and stores the carbon dioxide in the gas storage. The underground storage serves as the carbon dioxide storage and the high-pressure storage tank for storing energy of compressed carbon dioxide, and thus saves the construction cost. When the storage energy system is decommissioned, the underground storage can continue to store carbon dioxide for a long time. The heat storage assembly of the application recycles the compression heat generated in the compression process of carbon dioxide and uses the compression heat for the expansion process of carbon dioxide, so that the energy recycling is realized and the system energy consumption is reduced.

The application discloses a kind of low modulus silicone rubber based on topological network regulation and its preparation method and application, belong to room temperature vulcanized silicone rubber technical field.It includes component A, component B and component C;The A component, by weight fraction, includes tetraethenyl terminated polysiloxane 100 parts, white carbon black 10-50 parts, platinum catalyst 0.01-0.5 parts;The B component, by weight fraction, includes end hydrogen silicone oil 3-50 parts, tetraethenyl terminated polysiloxane 50-97 parts, white carbon black 10-50 parts, inhibitor 0.01-0.5 parts;The C component, by weight fraction, includes hydrogen-containing silicone resin 0-30 parts.The application controls the topological network of silicone rubber, reduces its modulus at the same time, makes it have better mechanical properties and damping performance, realizes the synergistic optimization of comprehensive performance.

The invention relates to sanding slurry capable of being stored for a long time, which is prepared from the following components in percentage by mass: 20 to 70 percent of pigment and filler, 0.7 to 2 percent of macromolecular dispersing agent, 0.4 to 1 percent of anionic dispersing agent, 0.1 to 5 percent of polyamide wax, 0.21 to 5 percent of auxiliary agent, 0.1 to 2 percent of talcum powder, 0 to 10 percent of solvent and 20 to 60 percent of pure water, and the total mass percentage of the components is 100 percent. According to the sanding slurry capable of being stored for a long time, the polymer dispersing agent and the anionic dispersing agent are compounded for use, so that the stability of the inorganic filler in the slurry and the compatibility of the inorganic filler and paint color matching slurry are improved, and the grinding efficiency is improved. The slurry does not contain grinding resin, grinding is more sufficient, the grid structure of a slurry system is increased by adding polyamide wax, and toner precipitation is reduced. The obtained sanding slurry is high in stability, can be stored for a long time, is lower in grinding fineness, and can bring better paint film performance after being used. The invention also comprises a preparation method of the sanding slurry capable of being stored for a long time.

The application provides a high-pressure gas storage device with a multi-cylinder structure and a manufacturing method thereof, comprising: a plurality of cylinders, a charging valve 2, an electric explosion valve 3, a pressure sensor 4, a tee joint 5 and a conduit 6; the cylinders comprise a first cylinder,..., an nth cylinder; wherein n is greater than or equal to 3; the electric explosion valve 3, the first cylinder,..., the (n-1)th cylinder, the pressure sensor 4 and the nth cylinder are sequentially welded on the conduit 6; the charging valve 2 is welded at the end of the conduit 6; and the electric explosion valve 3 is used for isolating high-pressure gas from a downstream pipeline. The application solves the problem of long-term reliable storage of high-pressure gas under a light and small structure of a product in the field of spaceflight, and greatly improves the long-term storage capacity and reliability of the spaceflight product.

The application relates to an antibacterial adhesive material and application thereof, relates to the technical field of adhesive materials, and solves the problem that the existing adhesive material is not good in function in a wet state environment. The coagulum formed after mixing cationic hydrochloride and anionic small-molecule sodium thioctic acid salt in a buffer solution and centrifugation is prepared through dehydration and solidification; the sodium thioctic acid salt is obtained through the following steps: dissolving sodium hydroxide in deionized water, adding alpha-thioctic acid into the solution in batches under intense stirring, filtering the obtained mixture with a polytetrafluoroethylene syringe filter, and freeze-drying; the cationic hydrochloride is polylysine hydrochloride, polyhexamethylene biguanide hydrochloride or branched polyethyleneimine hydrochloride. The application can be applied to medical antibacterial dressings, tissue adhesives or cultural relic restoration, and the adhesion is activated by physiological saline, a buffer solution or water before use.

The application relates to a powder containing n-butyl thiophosphoric triamide and application thereof. The powder containing n-butyl thiophosphoric triamide provided by the application can effectively reduce the decomposition rate of n-butyl thiophosphoric triamide after being added into a fertilizer, effectively prolong the action time of n-butyl thiophosphoric triamide, and improve the urease inhibition effect.

The embodiment of the present application relates to the technical field of coal storage equipment, and discloses a long-term coal storage method based on liquid-gas phase change. The method comprises the following steps: connecting a liquid storage container containing a cooling medium with a gasifier; gasifying the cooling medium through the gasifier; sending the cooling medium to the bottom of a coal pile through a gas sending pipeline at a first flow rate; sending the cooling medium to the bottom of the coal pile through the gas sending pipeline at a second flow rate greater than the first flow rate; when the amount of the cooling medium released reaches a first preset value, stopping the release of the cooling medium and disconnecting the liquid storage container from the gasifier. Since the gasified cooling medium has a high pressure and a low temperature, the pressure of the cooling medium decreases after escaping through the gas sending hole, thereby further reducing the temperature. Therefore, the cooling medium entering the coal pile absorbs a large amount of heat, thereby achieving the cooling of the coal pile. The temperature of the cooled coal pile is relatively low, and the probability of spontaneous combustion is significantly reduced, thereby achieving the long-term and safe storage of coal.

The application provides a fluorine-containing polymer for spleen-selective nucleic acid delivery, a polymer-lipid hybrid nanoparticle and a preparation method and application thereof. The preparation method of the fluorine-containing polymer for spleen-selective nucleic acid delivery comprises the following steps: preparing the fluorine-containing polymer through ring-opening addition reaction of alkylene oxide, fluorine-substituted alkylene oxide and polyethylene imine. The preparation method of the fluorine-containing polymer is simple, the conditions are mild, and the yield of the finished product is high; the obtained fluorine-containing polymer is used for preparing the polymer-lipid hybrid nanoparticle, nucleic acid can be specifically delivered to the spleen and play a role, the polymer-lipid hybrid nanoparticle has a good transfection effect on spleen dendritic cells, and has good biological safety.