51results about How to "Volatile stability" patented technology

The invention discloses a mosquito repelling gel composition with natural plant essential oil. The mosquito repelling gel composition comprises the following raw materials in percentage by weight: 0.2-5% of water-soluble colloid, 0.2-10% of natural plant essential oil, 0-5% of water-soluble polymers, 1-20% of low alcohols, 0.5-20% of solubilizing agent, 0-0.5% of gel enhancer and the balance of deionized water. The water-soluble colloid in mosquito repelling gel disclosed by the invention can form a reticular or multi-dimensional spiral structure in a water medium and can be stably dispersed or used for wrapping the natural plant essential oil, so that the essential oil is stably and continuously released, and a better mosquito repelling rate can be kept in the whole release process. A mosquito repelling component adopted in the product is purely-natural plant essential oil which is safe to the environment and human bodies; the product is in a gel form; the essential oil is stably volatilized at normal temperature; and when used, the mosquito repelling gel composition does not need to be in direct contact with the skins of human bodies, is convenient to carry and can be continuously used for repelling mosquitoes indoors and outdoors for a long term.

The invention relates to a spirit identifying system based on volatizing control and a visualized array sensor. The system comprises a volatizing device, a detecting device, a visualized array sensor and an image collecting instrument, wherein the volatizing device consists of an inner layer I and an outer layer I; the detecting device consists of an inner layer II and an outer layer II; the inner layer I is a spirit storing cavity; a heating cavity I is arranged between the inner layer I and the outer layer I; the inner layer II is a spirit gas detecting cavity; a heating cavity II is arranged between the inner layer II and the outer layer II; the visualized array sensor is arranged in the spirit gas detecting cavity; and the image collecting instrument is arranged at the top of the spirit gas detecting cavity. The spirit is volatized by the volatizing control device under the required condition and comes into contact with the visualized array sensor in the input detecting device, the signal responded by the feature of the sample to be detected is detected by the visualized array sensor, the spectrum change signal collected by the image collecting instrument is input to a signal identifying and processing system, the detecting results are displayed in a spectrogram way and then the visualized detection is realized. The detection is convenient and rapid by adopting the system.

The invention discloses an intelligent aroma volatilizing system which comprises a sensing device, a control center, a volatilizer, a client and a cloud, wherein the sensing device is used for collecting and extracting environmental parameter information influencing volatilization and volatilizing state in an external environment, converting the environmental parameter information into an electric signal, and transmitting the electric signal to the control center; the control center is used for controlling the volatilizer by combining historical control information of the cloud and the behavioral habit of the user according to an input instruction of the user at the client and the volatilization environmental information transmitted by the sensing device, and transmitting the operating state of the system to the client; the volatilizer is used for accepting a control signal of the control center, and controlling multidimensional volatilization of aroma. The intelligent aroma volatilizing system disclosed by the invention is controlled by a mobile terminal to finally produce high-end intelligent home equipment which can be used for simulating multiple scenes; the high-end intelligent home equipment has a main function of simulating smell, and realizes sense similarity of environmental atmosphere and ingredient similarity of healthy health-care functions.

The invention discloses a method for preparing a large-area orderly porous membrane. The method comprises the following steps: (1) dissolving a polymer and a surfactant into a solvent so as to prepare a polymer solution; (2) dropwise adding the prepared polymer solution to the surface of a substrate, and putting the substrate into a closed container; (3) introducing steam into the closed container from the downside of the substrate, controlling relative humidity to a stable state, and carrying out standing on the substrate for a certain time in a stable-state humidity atmosphere; (4) taking the substrate out of the humidity atmosphere, and drying the substrate, thereby obtaining the orderly porous membrane. According to the method, the preparation of nanoscale-pore-size and micron-scale-pore-size porous membranes can be taken into account by one process route, and the process route is not required to be changed during the production of the porous membranes of different pore sizes, so that the production cost is reduced; the large-area orderly porous membrane with high stability can be prepared.

The invention relates to a non-woven fabric production technology, in particular to an anti-mosquito water-proof non-woven fabric production technology to solve the problem of a single function of the non-woven fabric. Water-proof agent is uniformly sprayed on a non-woven fabric fiber mesh through a spraying method. The non-woven fabric fiber mesh is vibrated vertically to enable the water-proof agent to filter into the non-woven fabric mesh quickly and uniformly. The non-woven fabric fiber mesh after vibration treatment enters into an oven to be dried, the temperature of the oven is 250 to 260 degrees, the non-woven fabric fiber mesh passes through the oven with the speed of 40 to 50 m / min, the vibration amplitude is 12 to 16 mm, the frequency of vibration is 220 times / min to 320 times / min, and the anti-mosquito water-proof non-woven fabric is obtained. The anti-mosquito water-proof non-woven fabric production technology enables the non-woven fabric itself to have the anti-mosquito effect, the non-woven fabric can be used to produce a tent, a bed sheet and a pillow cover, can be especially used by the crowd who are afraid of being bit by mosquitoes and are allergic to the biting of the mosquitoes and can also be used by the crowd working outdoor, and the hidden danger of liquid medicine spraying directly to the skin to the body is avoided.

The invention relates to a vacuum drying device. The vacuum drying device comprises a drying chamber, a sample table and a flow stabilizing channel, wherein the drying chamber is provided with a vacuum cavity, the sample table is arranged in the vacuum cavity, the flow stabilizing channel is arranged in the vacuum cavity, one end of the flow stabilizing channel is used for communicating with an air extracting device, and the other end of the flow stabilizing channel is arranged towards the sample table and is provided with an airflow inlet. Compared with a conventional vacuum drier, a stable layer flow is formed on the surface of a sample by adopting the vacuum drying device, so that the situation of turbulence formed in a membrane layer or the situation that intermediate drying speed is small while the peripheral drying speed is high in the membrane layer can be avoided, water in ink and other materials to be volatilized can be uniformly volatilized as much as possible, the uniformityof membrane forming is effectively improved, and the performance of the device is further improved.

The invention relates to a Docetaxel combination for injection, which comprises the following components by mass ratio: 1 part of Docetaxel and 26.75 parts of polysorbate 80, wherein absolute alcohol is used as solvent in the preparation. The preparation method thereof comprises the following steps: 1) preparing mother liquid: adding polysorbate 80 to a liquid preparation tank and slowly adding absolute alcohol while stirring until the density of the mother liquid reaches 0.886g / ml to 0.896g / ml according to a hydrometer; 2) dissolving Docetaxel in the mother liquid; 3) carrying out sterile filtration, split-charging and partially stoppering; and 4) vacuum-drying, removing alcohol, stoppering, decrating and tying by aluminum-plastic composite covers stage by stage, and packaging upon qualification to obtain the Docetaxel combination for injection.

The invention discloses a preparation method for improving a quality factor of a microwave dielectric ceramic. The preparation method comprises the following steps: putting a powder material and zirconia balls into a ball mill tank according to a 1:3 mass ratio of the powder material to the balls, and performing ball-milling on the mixture using a revolution way, drying the ball milled mixture, and performing pre-firing on the raw material mixture powder to obtain a sample clinker; grinding the sample clinker, performing ball milling for 2h using a revolution way, and then adding a small amount of dispersant, performing ball milling for 1h using an autorotation way, and drying after the ball milling to obtain a sample powder; and putting the dried sample powder into a ball mill tank containing a deionized water and ethanol mixture, then putting the ball mill tank into an ultrasonic cleaning machine, and performing ultrasonic vibration and thermal insulation at temperatures of 40 DEG Cand 95 DEG C successively, drying to obtain a sample powder, performing granulation, sieving and compression molding on the sample powder, and finally sintering the sample powder into the microwave dielectric ceramic. The microwave dielectric ceramic prepared by the method has a higher quality factor, has a lower sintering temperature, has fine powder particles without agglomeration, has low production costs, and is suitable for industrial production.

The invention discloses a sprayable hydrogel coating and a preparation method of the coating. The preparation method is characterized by comprising the following steps: S1, performing synthesis of an ultraviolet polymerization viscous solution: mixing a solvent, a monomer, a cross-linking agent and an initiator in a reaction container to form a mixed reaction solution, stirring and carrying out free radical polymerization reaction under the condition of ultraviolet illumination to obtain the ultraviolet polymerization viscous solution; s2, performing solution dilution: diluting the ultraviolet polymerization viscous solution by adding ethanol to obtain a dilute solution which can be directly used for spraying; s3, adjusting the pH value of the dilute solution which can be directly used for spraying to obtain a solution C; and S4, spraying and curing. The hydrogel coating prepared from the coating obtained by the method has the advantages of mild preparation conditions, no environmental pollution, capability of generating chemical bonding on various solid surfaces and the like; and the method for spraying the hydrogel coating is feasible, the preservation time is long, and the hydrogel coating can be sprayed on the surfaces of various substrate materials and can be stably bonded with a substrate.

The invention discloses a method for enriching and stabilizing mercury in coal-fired flue gas by using a blast furnace slag modified desulfurizer. The method comprises the following steps: using an FGD desulfurizer slurry, using blast furnace slag as a modifier, and mixing the blast furnace slag and the desulfurizer slurry according to a mass ratio of the blast furnace slag to a dry desulfurizer of 1 to 2-3 to form iron manganese oxide-desulfurizer mixture system so as to prepare a desulfurizing-mercury capturing composite slurry; then using the desulfurizing-mercury capturing composite slurryfor desulfurizing the coal-fired flue gas and enriching and absorbing the mercury in the coal-fired flue gas. According to the method, the blast furnace slag and the desulfurizer are mixed to preparethe desulfurizer slurry for desulfurizing flue gas in a coal-fired power plant; toxicity leaching and volatilization testing are performed on the mercury in an obtained desulfurization material, themercury in the obtained desulfurization material is more stable than ordinary desulfurization gypsum, the concentration of the leached mercury is lowered, the volatile release rate is greatly reduced,and the inhibitory effect on an environmental mercury pollution source is strong. Therefore, the method is of a great significance in atmospheric environmental protection.

The invention relates to a mixed organic solvent for preparing high-temperature sintered conductive paste, and belongs to the technical field of oily organic solvents. The mixed organic solvent comprises 10-60 wt% of fatty acid ester containing a phenyl ether structure, 10-60 wt% of butyl carbitol acetate, 0.1-10 wt% of at least one of 2,2,4-trimethyl-1,3-pentanediol monoisobutyrate, 2,2,4-trimethyl-1,3-pentanediol diisobutyrate, 10-30 wt% of dimethyl adipate, 0.1-0.5 wt% of gamma-methacryloxypropyltrimethoxysilane and 0.5-1.5 wt% of silicone oil. The mixed organic solvent has the advantages that the solvent has the characteristics of good resin solubility, good wettability to metal particles, no volatilization at room temperature, stable volatilization at high temperature and the like, various types of resin commonly used by photovoltaic front silver paste can be well dissolved, and experiments prove that compared with a traditional single solvent system, the solvent is more suitablefor the requirements of silver paste printing and sintering; and the solvent is simple in reaction condition and high high product yield, and has favorable application prospects in the photovoltaic industry and electronic conductive paste related fields.

The invention discloses peppermint essential oil mosquito liquid and a preparation method thereof. The peppermint essential oil mosquito liquid is prepared from, by weight, 0.5-2.5 parts of transfluthrin, 0.1-0.5 part of peppermint essential oil, 50-60 parts of diethylene glycol butyl ether, 0.05-0.15 part of 4-sodium cumenesulfonate, 0.1-0.5 part of synergist, 0.1-0.5 part of antioxidant and 35-45 parts of water. The peppermint essential oil mosquito liquid is fresh and fragrant in smell, has a strong dispelling and killing effect on mosquitoes, is environmentally friendly, strong in effect, safe, inflammable and stable in volatilization, can lower the indoor organic volatile content, and is an ideal choice for healthy home life.

The invention discloses low-temperature quick-drying mask silver paste for intaglio printing and a preparation method of the low-temperature quick-drying mask silver paste. The mask silver paste is prepared from 30-50 wt% of flaky silver powder, 40-60 wt% of organic solvent, 5-10 wt% of polymer resin and 1-5 wt% of functional additive. Firstly, flake silver powder with large particle size, high tap density and few surface flatness defects is selected as the silver powder, so that the silver paste still has a good conductive effect under the condition of low silver content. And then, specifically selected macromolecular resin and functional auxiliaries are adopted to provide proper gravure printing process viscosity and excellent fluidity for the mask silver paste, so that a printed pattern is clear and complete, the flaky silver powder is uniformly dispersed in the printed pattern, meanwhile, excellent adhesion strength is provided for the mask silver paste, the mask silver paste is ensured to be adhered to mask cloth, and the mask cloth is prevented from being damaged. Falling is not prone to occurring; in addition, the polymer resin and the functional additive also play roles in protecting the mask silver paste from being interfered by soaking of the essence and ensuring the stable conductivity of the mask silver paste.

The invention discloses a manufacture method for nanocrystallization of natural phytoncide molecule without agglomeration, and relates to a manufacture method of plant essential oil. Compound phytoncide essential oil is conducted according to the following step sequence: firstly, pouring 1000ml of pure phytoncide essential oil into a supermolecular film filter, so as to filter impurities; secondly, mixing and pouring 800ml of pure phytoncide essential oil and 200ml of tea tree essential oil into a blender, stirring at 500 revolutions per minute, continuously heating the pure phytoncide essential oil and the tea tree essential oil to 65 to 70 DEG C, and ensuring that the stirring time is 5 to 8 minutes, so as to obtain 1000ml of compound phytoncide essential oil; thirdly, pouring the 1000ml of compound phytoncide essential oil into the blender, then pouring 3000ml of alcohol and 6000ml of deionized water into the blending, and stirring for 8 to 10 minutes at 500 revolutions per minute. A manufacture method for preventing agglomeration of phytoncide molecule comprises the following steps: pouring 1000ml of compound phytoncide aqueous solution into the blender, then adding 0.5 to 1 percent of an inorganic dispersant, stirring for 3 to 5 minutes, and then pouring the compound phytoncide aqueous solution and the inorganic dispersant into a supersonic oscillator to perform oscillation for 2 to 4 minutes at the frequency of 20KHz.

The invention discloses an ion mobility spectrometry trace permeation device which comprises a release tube, a permeable membrane and a heating and heat preservation device, a calibration reagent placement cavity is formed in the release tube, and volatilization holes are formed in the tube wall of the release tube and communicated with the calibration reagent placement cavity; the permeable membrane covers the volatilization hole of the release tube; a heating and heat preservation cavity is formed in the heating and heat preservation device, a release pipe provided with a permeable membranecan be contained in the heating and heat preservation cavity, the heating and heat preservation cavity is communicated with the air inlet channel and the air outlet channel, and air flow can be formedin the heating and heat preservation cavity. The ion mobility spectrometry trace permeation permeation device provided by the invention has a temperature control function and a flow control function,so that stable volatilization of a calibration reagent can be ensured; and meanwhile, the permeation amount of the calibration reagent can be subjected to air control, so that the problems in the prior art can be effectively solved.

A pressure sustaining system for an LPG bombe may include the LPG bombe, in which an LPG fuel may be injected and which may be equipped with a ventilation tunnel for emitting the air inside the LPG bombe, and a check valve unit, installed at an opening of the ventilation tunnel, with a fixed conversion pressure so as to keep an air pressure inside the LPG bombe above a predetermined value.

The invention relates to an electrothermal fly mat and a preparation method thereof. The electrothermal fly mat is prepared by attaching pesticide liquid to a paper-based carrier. The pesticide liquid comprises the following components in percentage by weight: 25-73 percent of pyrethroid, 25-73 percent of organic solvent and 0.5-2.5 percent of essence. The pesticide liquid has the dosage of attaching 10-45g of medical liquid to 100g of the paper-based carrier. The preparation method comprises the following steps of: mixing the pyrethroid, the organic solvent and the essence into the pesticide liquid in proportion; attaching the pesticide liquid on the paper-based carrier; and drying and cutting the paper-based carrier which is attached with the pesticide liquid. The electrothermal fly mat has long pesticide-effect duration, good fly expelling and killing effect, no smoke, no stimulation and safe and convenient use and can be widely used for personal and environmental hygiene protection of families, hotels and schools.