60results about How to "Improve adhesion efficiency" patented technology

The objective of the present invention is to provide a sealant for an LED device capable of forming a sealing layer having a high level of light extraction, outstanding resistance to sulfidizing gas, and not giving rise to cracking or peeling even when used for extended periods, as well as an LED device employing the same. In order to attain at least one of the abovementioned objective, a sealant for an LED device reflecting one aspect of the present invention contains 100 mass parts of a 1000-3000 mass average molecular weight polysiloxane polymerized from a trifunctional monomethyl silane compound and a tetrafunctional silane compound, 5 mass parts to 100 mass parts of an organometallic compound comprising a metal alkoxide or metal chelate containing a Group 4 or Group 13 metal, and a solvent.

The invention discloses an air purification method, and the purification method is characterized in that fluid is placed on a flow guide surface and used to adsorb suspended particles, thus the purification method can solve the problem that the small-size particles are difficult to filter; centrifugal force is generated by guiding air for circular or spiral motion along an inner arc surface so that the suspended particles can be pushed into the fluid on the flow guide surface; a rectification component is used as a static dust collecting electrode and used to attract the suspended particles with static electricity into the fluid so that the adhesion efficiency is improved. An additive is added into water, so that volatility is controlled, the adsorption capacity of the oily suspended particles is improved, and the capacity of removing formaldehyde, hydrogen sulfide and ozone is enhanced.

The invention belongs to the field of biomedicine, and specifically relates to a method used for inducing differentiation of human multipotential stem cells into retinal progenitor cells. According to the method, human embryonic stem cells or human induced multipotential stem cells are induced in a medium containing N2, and then are delivered into a retina induction medium containing neural basis culture medium, knockout serum replacement and nicotinamide so as to obtain the retinal progenitor cells. The method is capable of increasing differentiation rate of human multipotential stem cells into retinal progenitor cells; and the retinal progenitor cells obtained via differentiation can be used for transplantation therapy of irreversible degenerative diseases of retinal neurons, such as age-related macular degeneration and retinitis pigmentosa, and also can be used for iPS cells sourced from patients as cell models in drug screening and gene interference experiments. Compared with existing technology, small molecule compounds used in the method are less, so that influences caused by non-anthropogenic factors are avoided effectively, and yield of obtained optic cup-like cells is obviously higher than that of existing induced differentiation methods.

The invention provides an automotive door panel processing device in the technical field of automotive door processing equipment. A device base (3) is arranged on the lower portion of a device frame (13) of the automotive door panel processing device, and a plurality of locating blocks (4) are installed on the device base (3). A lifting component (5) is installed on the top of the device frame (13), the lower end of the lifting component (5) is connected with a press-fitting plate (6), and the lifting component (5) is connected with a control component (7) which can control the lifting component (5) to ascend and descend. The automotive door panel processing device is simple in structure, a door panel piece I and a door panel piece II can be conveniently and rapidly installed in a press-fitting mode and connected together in an adhesion mode, the situations that the effect of adhesion between the door panel piece I and the door panel piece II is good, and the door panel piece I and the door panel piece II cannot crack after the door panel piece I and the door panel piece II are used for a long time are ensured, the production quality of automotive door panels is improved, and the production efficiency of the automotive door panels can be effectively improved when the automotive door panels are produced.

The invention discloses a solid-state composite electrolyte membrane preparation process and a solid-state composite electrolyte membrane. The preparation process of the solid-state composite electrolyte membrane comprises the following steps: by taking a porous flexible membrane as a support matrix of the composite electrolyte membrane, respectively and sequentially attaching a low-viscosity electrolyte solution and a high-viscosity electrolyte solution on at least one side surface of the porous flexible membrane and in a pore structure of the porous flexible membrane step by step in a dip-coating mode, and conducting drying to obtain the solid-state composite electrolyte membrane. The viscosity of the high-viscosity electrolyte solution is higher than that of the low-viscosity electrolyte solution, and the thickness of the solid composite electrolyte membrane is 5 microns to 120 microns.

The invention discloses a primary isolation method of animal skin fibroblasts. Disinfected animal skin is selected, and a full-layer skin wound is formed; an injured skin area is taken down after the skin is injured within 3-5 days, subcutaneous tissue and extra blood vessels are removed completely, and the skin is cleaned with PBS (phosphate buffer saline) containing 2% of a penicillin-streptomycin solution for 2-3 times; the skin is cut into tissue pieces ranging from 0.1 mm<3> to 0.5 mm<3> in size; PBS containing 1% of the penicillin-streptomycin solution is poured, centrifugation is performed at the low speed of 1,000 rpm/min for 5 min, and residual floating tissue pieces and a residual supernatant are removed; a cell culture dish covered with 0.2% of gelatin is evenly inoculated with centrifuged tissue pieces, a cell culture fluid containing 2 ml of a DMEM (Dulbecco modified eagle medium), 10% of the FBS and 2% of the penicillin-streptomycin solution is added, and the culture dish is placed in a 5% CO2 incubator at the temperature of 37 DEG C for culture. A skin injury healing mechanism is used, a proper healing period is selected, a large number of proliferative fibroblasts are obtained, meanwhile, removal of the subcutaneous tissue facilitates climbing out of the fibroblasts of corium layers, the number of cells can be increased, the cells can climb out more easily, the cell climbing-out cycle is shortened, and the adherence efficiency is enhanced.

The invention discloses a liquid-solid compound collecting agent for coal slime flotation and a preparation method thereof. The liquid-solid compound collecting agent is prepared by mixing high-floatability ultrafine coal-based particles with a liquid collecting agent in proportion, wherein the mass percentage of the ultrafine coal-based particles is 0.5-5%, and the mass percentage of the liquid collecting agent is 90-99.5%. The high-floatability ultrafine coal-based particles in the liquid-solid compound collecting agent can be adsorbed on the surfaces of floated coal particles in the flotation process, the surface hydrophobicity of the floated coal particles is improved, the efficiency of adhesion between the coal particles and bubbles can be improved, and the coal slime flotation effectis effectively improved. The liquid-solid compound collecting agent is low in cost, good in effect and capable of well improving the coal slime flotation efficiency and improving the recovery rate ofa clean coal product.

The invention relates to a roller type adhesive tape cutting device. The roller adhesive tape cutting device comprises roller adhesive tape, an adhesive tape conveying device and a cutting device (5) and is characterized in that the roller type adhesive tape cutting device moves on the surface of an adhered object to achieve adhesion and cutting of adhesive tape, the roller adhesive tape is mounted on a roller adhesive tape mounting portion (1) in a shell A (61), and the adhesive tape conveying device is located in a shell B (62) and carries out wrinkle-free output on the adhesive tape; the cutting device (5) cuts the adhesive tape output of an outlet of the shell B (62). The roller type adhesive tape cutting device moves on the surface of the adhered object to achieve perfect connection of the adhesive tape and the adhered object without bubbles and wrinkles, output, adhesion and shearing of the adhesive tape can be repeatedly carried out through the single hand, and the adhesion efficiency and the adhesion quality are greatly improved.

The invention discloses a strong turbulent flow generating device for rapidly sorting micro-fine particles. The device comprises a cylindrical pipe flow section and a plurality of conical rings arranged in the pipe flow section, wherein the conical rings are uniformly distributed in the axial direction of the pipe flow section, ore pulp flows from the bottom surface to the top surface by arrangingthe installation direction of the conical rings in the pipe flow section, the outer diameter D1 of the bottom surface of the conical ring is the same as the inner diameter of the pipe flow section, aratio of the outer diameter D2 of the top surface of the conical ring to the outer diameter D1 of the bottom surface of the conical ring is 0.3-0.8, the included angle between the outer side wall ofthe conical ring and the inner wall of the pipe flow section is 15-45 DEG, and a plurality of water through holes are uniformly formed in the outer side wall of the conical ring. According to the invention, the turbulent flow intensity can be improved without additional increase of energy consumption, the flotation granularity lower limit is reduced, and the recovery rate of micro-fine particles is increased.

The invention discloses a method for culturing porcine circovirus type 2 by a microcarrier bioreactor. The method comprises the following steps: (1) cell dissociation in a spinner bottle; (2) cell filtration; (3) cell virus receiving and tank charging culture; (4) 24 h liquid exchange; (5) gaining of a primarily received antigen; (6) second-time cell dissociation and tank charging; (7) gaining ofa secondarily received antigen and liquid exchange culture; (8) gaining of a thirdly received antigen; and (9) melting of the primarily received antigen, the secondarily received antigen and the thirdly received antigen, filtration to remove a microcarrier to obtain an antigen liquid for titer detection. By adoption of the method, the cell wall-adhering efficiency can be improved, cell aggregatesare reduced, the cell density is improved, the yield of single-batch antigens can be increased, the titer of the antigens is improved, and the production cost is lowered.

The invention discloses a decyl salicylhydroxamic acid and application thereof. The chemical structure of the decyl salicylhydroxamic acid is shown as 1. The hyperconjugation structure of decyl and benzene rings in the molecular structure of the decyl salicylhydroxamic acid enables the benzene ring structure to have higher electronegativity. The nucleophilic ability of solid affinity groups of hydroxamic acid molecules is higher through the above double factors, so that collecting agent molecules are more liable to adsorb on the surfaces of target minerals. The hydrophilic and hydrophobic properties of the target minerals can be changed by the collecting agent molecules through longer hydrophobic structures more effectively, and the adhesion efficiency of bubbles and minerals is improved;for flotation of refractory oxidized ore, the usage amount of lead nitrate or other metal salt activators can be reduced, and the collecting agents are applicable for flotation of tungsten ore, rare earth ore and tin ore.

The invention relates to the field of isolated culture of adult cells in the technical field of biology, in particular to a method for isolated culture of umbilical vein endothelial cells. The method comprises the following steps: completely stripping an umbilical vein from wharton jelly; longitudinally cutting off the umbilical vein along one side so as to change the umbilical vein into a rectangular blood vessel wall surface from a tube shape and rinsing; adding II-type collagenase for digestion; and taking out the blood vessel and rinsing after digestion, mixing rinsing liquid with enzymatic hydrolysate, centrifuging, removing supernatant and carrying out culture by using a culture medium. The cell separation method is simple to operate, and can be independently carried out by a single person; red cell contamination is relatively low; liquid exchange can be carried out 72 hours after cell inoculation, so that the cell adhesion efficiency is relatively high. A large amount of endothelial cells obtained by primary generation are obtained; CD31 positive expression of P3 cells can reach 95% or above; preparation of umbilical cord mesenchymal stem cells is not affected when the endothelial cells are separately prepared; and the experiment material can be fully utilized.

The invention discloses an air filtering device with a helical structure and a helical filtering nose plug. The device comprises a helical structure and an adhesive medium, wherein the helical structure comprises a helical pipe wall and helical ribs mounted on the inner wall of the pipe wall; and the inner wall of the helical pipe wall and the helical ribs are coated with the adhesive medium. The nose plug comprises two helical structures, a connecting band and an adhesive medium, wherein the two helical structures are respectively arranged on left and right nose cavities; the connecting band is used for controlling the placing position of the nose plug, and moreover, is convenient to wear and use; and the helical structures can induce passing gas to form vortex, promote inhalable particles carried in air to move towards the inner wall of the helical pipe and the helical ribs, and adhere inhalable particles to the degradable adhesive medium coated on the inner wall of the helical pipe and the helical ribs, so that the function of filtering off inhalable particles in the air is realized, air inhaled into the body is purified, and the influence of harmful particles on the human body is inhibited or relieved.

The invention provides a sewage treatment air flotation machine. The sewage treatment air flotation machine comprises an air flotation machine body, wherein a water inlet tank is arranged at the upper left end of the air flotation machine body; a slag collecting tank is arranged at the right end of the upper part of the air flotation machine body; a slag scraping device is arranged on the air flotation machine body; an bubble generator component is also arranged and comprises an air pump arranged at the exterior of the air flotation machine body, an air inlet pipe communicated with the air pump and a ceramic rotation pipe arranged at the exterior of the air inlet pipe; the ceramic rotation pipe comprises a main pipe and branched pipes arranged on the main pipe; the air inlet pipe is horizontally arranged at the lower part of the inside of the air flotation machine body; an air outlet is formed in the other end of the air inlet pipe; the main pipe of the ceramic rotation pipe sleeves the periphery of the air inlet pipe; the ceramic rotation pipe is connected with a rotary driving mechanism and rotates around the air inlet pipe; nano-micropores are formed in the pipe walls of the main pipe and the branched pipes of the ceramic rotation pipe.

The invention discloses a color printing paper adhering system and process for an annular packaging piece in the technical field of product packaging, the color printing paper adhering system comprises the annular packaging piece, the inner wall of the annular packaging piece is hung on a conveying mechanism, the conveying mechanism is fixedly connected with an adhering mechanism, and the adhering mechanism can adhere to the annular packaging piece in the conveying process of the annular packaging piece. Color printing paper is pasted to the fixed transverse position of the inner wall of the annular packaging piece, the right side of the conveying mechanism is fixedly connected with a material returning mechanism, and the material returning mechanism is fixedly connected with a supporting mechanism. The adhesion action in the whole adhesion process is simplified, the adhesion process is efficient, and the adhesion efficiency of the system is further improved.