19results about How to "Long term storage" patented technology

The invention provides a composition for promoting formation of a cosmetic liquid crystal structure and a preparation method and application thereof, and belongs to the technical field of cosmetic preparations. According to the invention, squalane, hydrogenated lecithin with a specific model, cholesterol, glycerol and water are used as raw materials, and a composition, namely squalane liposome, for promoting formation of a liquid crystal structure of cosmetics is prepared by a high-pressure homogenization method. According to the squalane liposome and the preparation method thereof, the proportion of the components is investigated, and the squalane liposome which is good in stability and can keep stable for a long time under different extreme conditions is prepared; the whole process does not introduce organic reagents, is environment-friendly and safe, is simple to operate, and can realize large-scale production. The prepared squalane lipidosome can change the oil solubility of squalane, is suitable for various cosmetic systems, and improves the skin feeling experience and the moisturizing performance; in addition, the composition can promote the formation of liquid crystals in cosmetics and increase the number of liquid crystal states, so that the liquid crystal state structures in skin care products can stably exist for a long time, and the liquid crystal promotion effect presents dosage dependence.

The invention relates to the technical field of microorganisms, in particular to a viable bacterium preparation with the effect of preventing or treating decayed teeth as well as a preparation method and application of the viable bacterium preparation. The viable bacterium preparation comprises a lactobacillus paracasei strain and auxiliary materials, and the preservation number of the lactobacillus paracasei strain is CGMCC (China General Microbiological Culture Collection Center) No.27975. The viable bacterium preparation can inhibit the proliferation of streptococcus mutans and significantly inhibit the adhesion of streptococcus mutans on a hydroxyapatite tooth model; the level of producing water-insoluble exopolysaccharides by streptococcus mutans is reduced, the formation of a dental plaque biofilm caused by streptococcus mutans is effectively reduced, the content of a mature dental plaque biofilm is reduced, and the biofilm is not easy to form; the expression quantity of cariogenic genes gtfB, gtfC, gtfD, ftf and LuxS of streptococcus mutans can be obviously reduced.

The invention discloses an external clindamycin phosphate solution, which is prepared from the following raw materials in parts by weight: 0.6 to 1.2 parts of clindamycin phosphate, 0.1 to 0.2 part of resveratrol, 0.02 to 0.04 part of glutathione, 0.1 to 0.2 part of xanthan gum, 0.3 to 0.6 part of poloxamer, 25 to 32 parts of glycerol and the balance of water according to the weight of 100 parts. The traditional Chinese medicine composition can be stored for a long time, is good in medicine stability, and can well relieve side effects such as dry skin, sensitive irritation and skin rash.

A vacuum-sealed storage cabinet includes an outer shell, an inner liner housed within the outer shell, and a sliding door that opens and closes on the front side of the inner liner. A vacuum device is located on the rear side of the outer shell for creating a vacuum inside the inner liner. The air inlet of the vacuum device is connected to the interior of the inner liner, and the air outlet is connected to the outside. A vent valve is located on the door; when the vent valve is open, the interior of the inner liner is connected to the outside. This storage cabinet, by using a vacuum device on the rear side of the outer shell with its air inlet connected to the interior of the inner liner and its air outlet connected to the outside, extracts air from the interior of the inner liner and discharges it outside the cabinet, creating a vacuum environment inside the inner liner. This inhibits oxidation, mold, or moisture absorption of items, allowing for long-term storage. Furthermore, the vent valve on the door, when opened, connects the interior of the inner liner to the outside, balancing the internal and external air pressures and allowing the door to be opened without resistance.

The minced fillet is used as a raw material to produce the leisure food, and the product is rich in high-quality protein and high in nutritional value. A physical fishy smell removing method and a biological fishy smell removing method are combined, so that the fishy smell of the minced fillet is effectively removed. 0.001-0.002 part of tea polyphenol is added into 100 parts of minced fillet to form a protein-polyphenol compound, so that the gel strength and elasticity of the product are improved. And meanwhile, the stability of the product quality is effectively improved by utilizing the oxidation resistance and antibacterial property of the tea polyphenol. According to the method, a thermally induced gelation process and a sterilization process are combined into a whole by adopting a microwave technology, the microwave power is 0.5-20kW, and the treatment time is 60-600s, so that the gelation process is realized, the degradation of protease on myofibrillar protein is effectively reduced, and meanwhile, microorganisms are effectively killed. According to the invention, the minced fish jelly leisure food can be obtained, and the leisure food has soft, crisp and tender texture, fine and smooth taste, high protein and low fat, has extremely high nutritional value of fish meat, and can be stored for a long time at normal temperature.

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 invention discloses a moisture-proof smokeless firework propellant powder and a preparation method thereof. The moistureproof smokeless firework propellant comprises the following components in percentage by mass: 0.5-2% of a dispersing agent, 5-20% of an oxidizing agent ammonium perchlorate, 85-90% of an energetic high polymer material containing nitrocellulose, 1-3% of a centralite, 0.5-2% of liquid paraffin and 0.5-1% of an emulsifying agent, and is prepared by adopting a liquid paraffin emulsification coating method. The preparation method is simple, and the prepared damp-proof smokeless firework propellant powder has the advantages of high burning rate, good stability and excellent damp-proof performance, can be stored for a long time, and can be applied to producing opening powder and propellant powder of fireworks and crackers.

The present application relates to the technical field of microorganism, and particularly relates to a Bifidobacterium longum freeze-dried preparation, a preparation method and application thereof. The Bifidobacterium longum strain has a preservation number of CGMCC No. 25684. The Bifidobacterium longum freeze-dried preparation can significantly regulate immunity, stimulate mouse macrophage RAW264.7 to produce cytokines TNF-alpha and IL-6, reduce the production of inflammatory factors NO, TNF-alpha and IL-6 of RAW264.7 cells induced by LPS, and enhance cell immune function. The production process parameters are simple, easy to control, short in cycle, and the obtained product can be stored for a long time, and the product quality is stable.

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 invention discloses a high-strength flexible composite gel material, a high-strength flexible strain gauge, preparation methods of the high-strength flexible composite gel material and the high-strength flexible strain gauge, and application of the high-strength flexible composite gel material and the high-strength flexible strain gauge in sensors and intelligent wearable equipment. The high-strength flexible composite gel material comprises a polyurethane film and a polymer formed by in-situ polymerization of polyvinyl alcohol-polyacrylamide-acrylic acid ion hydrogel in pores of the polyurethane film. The high-strength flexible composite gel material has excellent strain sensing performance, ultrahigh fracture energy and fatigue threshold. The high-strength flexible strain gauge obtained after photoetching has good signal-to-noise ratio and electromechanical robustness of mechanical bending resistance, torsion resistance and extrusion resistance.

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 invention discloses a self-suspension microbubble enhanced electrochemical biological analysis method. The method comprises the following steps: S1, modifying a hollow glass microsphere with dibenzocyclooctyne-active ester; s2, an aptamer probe used for capturing a target and a signal chain with a signal group are subjected to mismatching hybridization, and a duplex probe is obtained; s3, modifying a duplex probe on the microspheres prepared in the S1 through click chemistry; s4, modifying the capture probe to the surface of the working electrode; and S5, dropwise adding the microspheres prepared in the step S3 and a sample with the same volume onto an activation electrode, outputting an alternating electric field to the activation electrode so as to enable the activation electrode to capture a signal chain with a signal group, and selecting an analysis method according to the characteristics of the signal group on the signal chain so as to carry out electrochemical biological analysis detection on the signal chain captured on the working electrode. According to the present invention, the EV surface protein marker can be efficiently detected with characteristics of high specificity and high sensitivity.

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 utility model discloses a weighing measuring tank detection device, which relates to the measuring tank detection technical field, and comprises a weighing sensing unit, a fixing assembly, a support assembly, a protection frame assembly, a stirring mechanism and a measuring tank body, the top of the fixing assembly is provided with the weighing sensing unit, the top of the weighing sensing unit is fixedly provided with the support assembly, and the protection frame assembly is fixedly provided with the stirring mechanism. A protective frame assembly is fixed to the top of the supporting assembly, a metering tank body is fixed in a protective frame, a stirring mechanism is arranged, a stirring motor runs to drive a stirring rod to rotate, a stirring plate fixed to the stirring rod rotates and stirs, and after certain special liquid is weighed, stirring can be conducted in time, so that the stirring efficiency is improved. The metering tank body is arranged in the metering tank to avoid precipitation or solidification, can be stored in the metering tank for a long time, and can be effectively prevented from being damaged due to the fact that the metering tank body topples over due to shaking of an earthquake in some areas where earthquakes occur frequently through the arrangement of the protective frame assembly.

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.