38results about How to "Well distributed" patented technology

The invention discloses an insoluble modified polyvinyl alcohol coating liquid and preparing method and film through the coating liquid, which comprises the following parts: polyvinyl alcohol, modifier, inorganics, crosslinking agent, catalyst and water. The coating liquid improves levelling, adhering and even property greatly, which increases obstruct property for kinds of gas.

The invention belongs to the field of lithium ion cell and specifically relates to a LiNi0.6-xCo0.2Mn0.2AlxO2-yFy positive electrode material for the lithium ion cell and a preparation method thereof. X is more than 0 and y is less than or equal to 0.05. The positive electrode material is used for overcoming the defect of poor electrochemical performance of the Ni-Co lithium manganate ternary positive electrode material. According to the invention, a minute quantity of aluminum and fluorine are doped, so that the positive electrode material for the lithium ion cell has higher specific discharge capacity and excellent cycle performance; under a room temperature environment, when the voltage scope is 2.7-4.3V and the constant current charge-discharge multiplying power is 0.5C, the specific discharge capacity of the material at the first time can reach 187.9mAh g<-1>, and after circulation for 20 times, the specific discharge capacity still can reach 192.1mAh g1 and the capacity retention ratio reaches up to 102.2%; when the voltage scope is increased to 2.7-4.5V and the constant current charge-discharge multiplying power is 0.5C, the initial specific discharge capacity of the material can reach 225.8mAh g<-1>, and after circulation for 20 times, the specific discharge capacity still can reach 190.2mAh g<-1> and the capacity retention ratio reaches up to 84.2%. The preparation technique of the material is simple and controllable, the product purity is high, the chemical uniformity is high, the crystal quality is high, the product grain is small and the size distribution is uniform.

The present invention discloses one kind of modified PVA paint, which consists of PVA, regulator, inorganic matter, tackifier and water. The tackifier is polyethylene imine and/or polyoxyethylene; the inorganic matter is clay and/or nanometer titania or the mixture of clay, nanometer silica and nanometer titania. The preparation process includes mixing PVA, regulator, inorganic matter, and water through stirring, heating to and maintaining at 90-95 deg.c to dissolve PVA completely, cooling to normal temperature, and adding tackifier through stirring. The product of the present invention has excellent machinability, and the formed coating has high water resistance, excellent ultraviolet ray and infrared ray reflecting property, high wear resistance and other excellent performance.

The invention discloses a nanometer SiO2 strengthening-toughening PET compound material for plastic-steel packing straps. A melt-blending method is adopted to prepare a master batch of the nanometer SiO2 strengthening PET compound material; the weight percentage content of gas-phase SiO2 is between 25 and 40 percent; a melting system always maintains high-speed shearing dispersion and carries out mixing in a 20KHz ultrasonic environment; a coupling agent KH550 or A1120 is added to the melting system, and the dosage of the coupling agent is 2.5-4 percent of that of the SiO2; the master batch is blended with PET and fed in certain proportion, and then the nanometer SiO2 strengthening-toughening PET compound material can be obtained, wherein the content of nanometer SiO2 is between 1 to 3.5 percent. Due to the adoption of the compound material, nanometer SiO2 particles in PET are uniform in dispersion, good in crystallization property, obvious in strengthening effect, good in the compatibility with the PET, simple to operate and low in cost. The PET master batch is blended with the PET for producing the plastic-steel packing straps, which can raise the strength, toughness, etc. of the PET.

The invention relates to a novel nano gene drug capable of stimulating lymphocyte activation and a preparation method thereof. The invention discloses a fusion gene; and a mouse beta-2 microglobulin signal peptide is introduced from the upstream of the fusion gene dsNKG2D-IL-21 gene to obtain the fusion gene ATG-sig-dsNKG2D-IL-21. The invention also discloses a fusion gene expression carrier pcDNA3.1-sig-dsNKg2D-IL-21. The invention also discloses a nano gene vaccine drug which is formed by encapsulating the pcDNA3.1-sig-dsNKg2D-IL-21 fusion protein expression vector with chitosan. The invention also discloses a preparation method of a nano gene vaccine. The nano drug is used for carrying a nano gel of the recombinant dsNKG2D-IL-21 gene vector capable of stimulating lymphocyte activation and in-vivo targeted distribution, and is hopeful to become a drug for resisting tumors and infectious diseases.

The invention discloses an anti-blocking type particle adsorber for high-temperature waste gas, and belongs to the technical field of waste gas treatment. A gas adsorption device and an embedded plateare installed in an embedded mode. Waste gas which is led out upwards passes through the adsorption layer group in an adsorption cylinder, multiple set adsorption operations are performed, and the adsorption effect of the waste gas is effectively improved; the adsorption layer group reaches a saturated state after being used for a certain time, the gas conduction is difficult to realize continuously; the floating ball which floats upwards is supported by matching with the impact force generated by the conduction gas, when the buoyancy generated by the amount of gas led out upwards is smallerthan the gravity of the floating ball, the floating ball floats upwards, the floating ball sinks and abuts against the top end part of the conical eduction tube, and the outer side wall of the floating ball makes contact with the blockage alarm mechanism to achieve alarm display so that technicians can more easily and visually perceive which adsorption layer set in the adsorption cylinder reachesthe saturation state, the gas adsorption mechanism at the position can be replaced, and replacement by the technicians is facilitated by the embedded installation.

The invention discloses a hyaluronic acid gel for hyaluronic acid injection. The hyaluronic acid gel is a disulfide crosslinked hyaluronic acid, and the content of hyaluronic acid in the gel is not more than 10 mg/mL. The crosslinked hyaluronic acid gel provided by the invention has unique advantages when used for hyaluronic acid injection, is easily injected through a very fine needle head of a hyaluronic acid injection needle, and can realize good and uniform distribution in a subcutaneous layer without bulging; and the hyaluronic acid gel has a moisturizing effect longer than that of uncrosslinked hyaluronic acid, and can effectively improve skin texture.

The invention discloses middle-sole latex and a preparation process thereof. Raw materials of the middle-sole latex comprise modified starch, cellulose, butyl acrylate, 2-ethylhexyl acrylate, styrene, a functional monomer, an emulsifying agent and appropriated amount of initiator. A middle-sole paper model produced by the middle-sole latex is easy to degrade after being discarded. The middle-solelatex and paper fiber are in good affinity, the latex can be distributed on the paper model easily, and obtained middle-sole sizes are stable. Simultaneously, the used paper model is easy to recycle,the discarded paper model is easy to degrade and the latex is beneficial to environmental protection.

The invention relates to a cotton feeding box of a carding machine. The cotton feeding box comprises a box body, the upper end of the box body is provided with a cotton inlet for being communicated with a cotton conveying channel, the box body is provided with a vibration mechanism for scattering cotton falling into the vibration mechanism, the lower portion of one side of the box body is providedwith an air supply device communicated with an inner cavity of the box body, the upper portion of the other side of the box body is provided with an air draft device communicated with the inner cavity of the box body, the bottom of the box body is provided with a cotton outlet, and two parallel and spaced cotton discharging rollers are horizontally and rotatably arranged above the cotton outlet.According to the cotton feeding box of the carding machine, several methods for adjusting the cotton feeding amount are set and include adjustment of the opening degree of the cotton inlet, turning onor turning off of the air draft device and turning on or turning off of the air supply device, the air draft device and the air supply device adjust the air pressure in the box body to adjust the cotton feeding amount of the cotton conveying channel, and the purposes of improving the fluffiness of cotton balls through ventilation and removing fine impurities and dust of the cotton can be achieved.

The invention belongs to the technical field of medicines, and relates to an oral cavity instant membrane agent containing rizatriptan benzoate prepared by using an electrostatic spinning technology.The formula of the oral cavity instant membrane agent comprises, 1 part of the rizatriptan benzoate, 1-300 parts of a membrane forming material and 0-50 parts of other auxiliaries. An oral cavity instant membrane is obtained through the electrostatic spinning technology, the electrostatic spinning conditions are that the voltage is 5-20 kV, the proceeding speed is 0.1-10 ml/h, the receiving distance is 5-20 cm, the temperature is 5-60 DEG C, and the humidity is 10-70%. The oral cavity instant membrane agent is composed of nano polymer fibers formed by electrostatic spinning, and the diameter of the nano polymer fibers is 10-1000 nm. The rizatriptan benzoate is uniformly distributed without a fixed form state. The oral cavity instant membrane agent containing the rizatriptan benzoate has higher specific surface area and porosity and faster dissolution rate, the effect comes up faster, the biological utilization rate is higher, and the pain of a patient with migraine can be rapidly relieved.

The invention provides a halogen-free nano flame-retardant TPE material and a preparation method thereof and solves the technical problems of characteristic loss and poorer dispersibility of an existing halogen-free nano flame-retardant TPE material elastomer. In every one hundred weight parts, the halogen-free nano flame-retardant TPE material is prepared from the following ingredients in content: 10 to 30 parts of SEBS or SBS, 5 to 40 parts of extending oil, 1 to 5 parts of flame-retardant synergist, 2 to 15 parts of polypropylene and 20 to 50 parts of inorganic nano hydroxide filling masterbatch. The invention further provides a preparation method of the halogen-free nano flame-retardant TPE material.

The invention relates to the technical field of plastic flexible packaging, in particular to a recyclable polyethylene single-material high-barrier film bag and a processing technology thereof, the high-barrier bag is easy to process, low in rejection rate, low in non-polyethylene content and good in barrier property and fragrance retention, and equipment used in the processing technology of the high-barrier bag is simple and low in cost. The high-barrier film bag is low in film manufacturing cost, easy to process and high in yield, the high-barrier film bag comprises a printing layer PE film and a heat-sealing layer PE film, the surface of the heat-sealing layer PE film is coated with improved PVA coating liquid, the PVA coating liquid is located on the surfaces of the heat-sealing layer PE film and the printing layer PE film, the printing layer PE film and the heat-sealing layer PE film are compounded through dry compound glue and then cut to manufacture the bag, and the high-barrier film bag is formed. The processing technology of the recyclable polyethylene single-material high-barrier film bag comprises the following steps: S1, preparing a film; s2, PVA (Polyvinyl Alcohol) coating; s3, printing the film cloth; s4, compounding; and S5, bag making.

The invention discloses composite nanofibers, and the molecular formula of the composite nanofibers is (OTA)10[Co4(H2O)2(VW9O34)2]/TiO2. A preparation method of the composite nanofibers comprises thefollowing steps: (1) dissolving Co(NO3)2.6H2O and Na2WO4.2H2O in 0.5M NaAC/HAC buffer solution under the condition of magnetic stirring, then adding NaVO3, heating, carrying out hot filtration, and drying to obtain Na10[Co4(H2O)2(VW9O34)2].35H2O; (2) dissolving butyl titanate and polyvinylpyrrolidone in a mixed solvent of N, N-dimethylformamide, glacial acetic acid and acetylacetone, and using anelectrospinning method to obtain TiO2 nanofibers; (3) dispersing the TiO2 nanofibers in 30-50mL of ethanol, stirring, adding C18H37N(CH3)3.Cl, and continuously stirring to obtain a solution A; dissolving the Na10[Co4(H2O)2(VW9O34)2].35H2O in 20-40mL of water to obtain a solution B; slowly dropwise adding the solution B into the solution A, stirring for 20-30 hours, washing with water and ethanol,and drying under the vacuum condition to obtain the composite nanofibers. The composite nanofibers effectively solve the problem of polyacid agglomeration; the catalytic efficiency is not significantly reduced after 5 cycles of use; the composite nanofibers form an extraction catalytic oxidative desulfurization system together with hydrogen peroxide and ionic liquid [Bmim] PF6, thus showing higherdesulfurization efficiency and excellent reusability.

The present invention provides a cosmetic composition comprising (a) 0.01 wt% to 2.0 wt% of at least one gel-forming (meth) acrylic polymer, (b) 0.01 wt% to 1.0 wt%, excluding 1.0 wt%, of at least one non-ionic emulsifier, and (c) water, the present invention relates to a cosmetic composition, selected from the group consisting of polyethylene glycol diesters of fatty acids, polypropylene glycol diesters of fatty acids and poly (ethylene glycol-co-propylene glycol) diesters of fatty acids, (c) 0.01% to 1.0% by weight of at least one solubilizer having an HLB value in the range of 12 to 20, and (d) water, each based on the total weight of the cosmetic composition wherein the composition is in the form of a gel or an oil-in-water emulsion, preferably in a gel form. The cosmetic composition of the present invention is in a form that is refreshing, non-greasy and easier to distribute.