547results about How to "Won't penetrate" patented technology

The invention provides acid-proof ink for protecting one glass solution (OGS) touch screens and a preparation method thereof, relating to ink. The acid-proof ink comprises 1-8 parts of curing agent, 5-50 parts of resin, 10-80 parts of solvents, 1-5 parts of emulsifier and 5-30 parts of filler by mass. The preparation method comprises the following steps: mixing natural resin, synthetic resin and the solvents, adding the emulsifier and heating the materials until the natural resin and the synthetic resin are totally dissolved, thus obtaining a mixture; stirring the prepared mixture under normal temperature and discharging the material when the temperature is cooled to the room temperature, thus obtaining mixed emulsion; adding the curing agent to the prepared mixed emulsion, adding the filler after stirring the materials and grinding the mixture, thus obtaining the liquid acid-proof ink for protecting OGS touch screens. The acid-proof ink has the advantages and technical effects that the ink has smaller particles and denser film, so that the ink can not permeate even if being strengthened; the ink has high particle packing density and is 5-10mu m thinner than the printing thickness of common protective ink; the stability of viscosity of the ink in the printing process can be maintained and the ink does not become dry easily, has good printing effects and does not stick to screen printing plates.

The invention discloses broad-spectrum antimicrobial fragrant polypropylene resin for a washing machine. The resin is prepared from the following raw materials in percentage by weight: 60-84 percent of polypropylene, 0.2-1 percent of small molecule organic antibacterial agent, 0.2-1 percent of inorganic antimicrobial agent, 0.1-1 percent of freshener, 10-30 percent of glass fiber, 5-10 percent of compatilizer, 0.1-2 percent of dispersing agent and 0.1-1 percent of antioxygen. The invention further provides a preparation method of the broad-spectrum antimicrobial fragrant polypropylene resin for the washing machine. The broad-spectrum antimicrobial fragrant polypropylene resin for the washing machine has a broad-spectrum, efficient and lasting antibacterial function, and is higher in safety; washing machine water stirring blades or an washing machine inner barrel made of the resin provide clothing with specific fragrance; as the adding of the glass fibers, the resin has a stronger comprehensive mechanical property, and has low probability of deformation in the using process; the preparation process of the resin is simple, convenient, clean and efficient.

The invention relates to a method for utilizing LED illumination light to realize wireless local area network communication, wherein the method is applied to a wireless local area network communication system. The wireless local area network communication system comprises an access terminal photoelectric transceiver, an LED lamp set and a user terminal photoelectric transceiver. The method comprises the following steps that: the access terminal photoelectric transceiver modulates data downloaded by an access terminal router on LED lights of the LED lamp set at a data rate that is greater than 1M bps; and the user terminal photoelectric transceiver receives the modulated LED lights that are sent by the LED lamp set and then the modulated LED lights are converted into ones with a level form and frequency, wherein the level form and the frequency can be accepted by a user terminal router. According to the invention, the method has the following beneficial effects that: data transmission as well as illumination and energy conservation can be realized simultaneously; because light waves are employed to carry out data transmission, there is no electromagnetic interference of radio frequency; because the light waves can not penetrate a wall, security of data transmission is strong; and no precious radio frequency resources are occupied, so that there is no need to apply for a frequency license.

The invention discloses a coal mine gob area sealing method, and belongs to the technical field of coal mine gob area gas extraction. When retaining walls of a first sealing chamber or roadway surrounding rocks between the retaining walls are cracked, cracks can be rapidly filled by the aid of fine sand with flowability under the action of ground stress and mining dynamic stress, and tightness is ensured. By the aid of positive and negative differential pressure characteristics of a second sealing chamber, nitrogen pressure in the second sealing chamber is constantly higher than air pressure in a ventilating roadway, a gob area is separated from the ventilating roadway by the second sealing chamber, air in the ventilating roadway cannot enter the gob area, and gas in the gob area cannot permeate into the ventilating roadway. By double sealing of the first sealing chamber and the second sealing chamber, sealing reliability of the gob area is greatly improved, the probabilities of spontaneous combustion of float coal and gas explosion are minimized, and safety of nearby roadways or working faces is guaranteed.

The invention provides a 3D-printing wound dressing material based on silk microsphere bio-ink and a preparation method thereof. The preparation method includes the following steps: transferring silkmicrosphere bio-ink, which includes silk protein microspheres coating aspirin, silk protein water solution, ultraviolet initiator and polyvinyl alcohol ester, into a syringe of a 3D-printing machine;with a cotton gauze as a base printing cloth, printing the surface of the cotton gauze with the silk microsphere bio-ink according to a periodically circulated cross-network structure model; and rapidly curing and shaping the 3D-printing wound dressing material under ultraviolet irradiation. The product is based on 3D-printing technology, wherein the formed cross-network structure contains regularly arranged silk microspheres, and the silk microsphere bio-ink coating layer cures on the surface of the cotton gauze and does not completely penetrate through the cotton gauze. The 3D-printing wounddressing material has good mechanical performance and biocompatibility and excellent slow-release performance, can protect a wound for a long time and can accelerate healing of the wounding.

The invetion relates to a prosthetic heart valve system(10;200;300) and a delivery system(400) therefor, wherein the prosthetic heart valve system(10;200;300) comprises a heart valve element(20) with expandable generally tubular stent support (102)forming a wire frame, wherein the tubular stent support(102) comprises a plurality of adjacent rows of interconnected, substantially diamond-shaped cell structures(171) extending, along and in parallel to the longitudinal direction, between the proximal end and distal end, and wherein the stent support(102), in a medial portion(105), comprises a circumferential row of a plurality of wire anchor structures(171) which wire anchor structures are spaced from one another and attached to the wire frame and which, in respect to the longitudinal axis of the stent support(102), at least partially protrude outward at an angle [alpha]. The prosthetic heart valve system may also comprise a stent(graft)-element(310).

The invention relates to a boiler chimney and the method for forming inner-wall protective element. The inventive boiler comprises an outer frame and a liner. Wherein, said liner has a inner-wall protective, which is formed by a polymer silicate solidify layer, a epoxy paint solidify layer while said two layers can be resistant to acid and high temperature, and a strength layer; the polymer silicate solidify layer is fixed on the inner surface of liner; the epoxy paint solidify layer is fixed on the polymer silicate solidify layer; the strength layer is glass fiber grid cloth, which is extended and embedded into the polymer silicate solidify layer, or individually embedded into the polymer silicate solidify layer and the epoxy paint solidify layer to form the inner-wall protective element. Said invention has lower cost, the high temperature resistance, antisepsis property and the anti-leakage property.

A paper substrate for the crepe adhesive belt is made up of the conifer wood through breaching, pulping by sulfate, beating, adding wet strengthening agent, shaping paper, craping, drying, winding, coating impervious colloid, drying and winding.

The invention relates to a composting treatment system with an automatic deodorization capacity. The system comprises an outer film, an inner film, a gas-rib type framework and two deodorization bases, wherein the outer film and the inner film are propped open by the gas-rib type framework; two ends of the outer film and two ends of the inner film are fixed on the two deodorization bases respectively, so that a sealed space is formed between the outer film and the inner film; a heap is placed in the inner side of the inner film, odorous gas and water vapor produced by the heap enter the sealed space formed by the outer film and the inner film through the inner film, the water vapor is condensed into water in the sealed space, odorous gas molecules can be absorbed and dissolved in condensate water, and waste water is formed, slips into the deodorization bases at the bottom along the inner side of the outer film and the outer side of the inner film and is discharged through the deodorization bases. Compared with the prior art, the system is simple in structure, detachable and capable of isolating and removing putrid odor and water vapor produced through composting treatment of biomass waste.

The invention relates to a colored soft hydrophilic contact lens and its making method. An organic film and a pigment layer are formed after the heating dye fixation stage through utilizing a film covering, printing and dyeing manner, so the organic film well blocks up the contact of the pigment layer and eyes. A mixture of the organic film, the pigment layer and a lens material monomer is molded, cured and turned to finally obtain the colored soft hydrophilic contact lens, so problems comprising pigment layer fading, weak wearing comfort level and the like are solved.

The invention provides a graphene conductive powder coating before wooden product coating as well as preparation and application thereof. The conductive powder coating is composed of the following components: epoxy resin, graphene, a dispersing agent, a filler, a silane coupling agent, a coupling agent of organic titanate, a flatting agent, a curing agent, an antifoaming agent and the like. The conductive powder coating can be applied to conductive treatment before wooden product coating, and the wooden product is treated and dried and cured to form a flat and dense conductive coating on the surface. The conductive powder coating is capable of closing pores on the surface of the wooden product base material and does not diffuse and permeate on the surface, so that the conductivity performance on the surface of the base material is improved, the electrostatic spraying coating quality of the wooden product is improved, phenomena such as pinholes, bubbles and cracking occurring in the coating flatting and curing process are avoided, and the adhesive force between the wooden product base material and the coating is promoted. The graphene conductive powder coating is excellent in hardness and resistance, is capable of improving the durability of the wooden products and can be widely applied to coating treatment industries of the wooden products.

The invention relates to a phenolic hydroxyl benzoate based macromolecular antibacterial material preparation method. A macromolecular antibacterial material is obtained by grafting of phenolic hydroxyl benzoyl chloride derivative containing monomer and an EVOH (ethylene-vinyl alcohol) copolymer to macromolecules through nucleophilic substitution. The phenolic hydroxyl benzoate based macromolecular antibacterial material has an excellent antibacterial effect on staphylococcus aureus, escherichia coli and mildew and not only has broad-spectrum high-efficiency lasting antibacterial functions but also is high in safety. Compared with nonpolar resin such as polyethylene and polypropylene and other resin such as EVA (ethylene-vinyl acetate) copolymer, the phenolic hydroxyl benzoate based macromolecular antibacterial material has advantages of high compatibility and promising application prospect.

The invention relates to a safe guarding system used in reinforced concrete supporting blasting engineering, which comprises a building safety net, a rubber protective blanket and a wire cable protective screening. The wire cable protective screening is connected with a stretch-draw anchor in a splicing way and is fixed on the upper part of a blasting reinforced concrete prop. An intermediate layer is the rubber protective blanket and an outermost layer is the building safety net. The system uses the wire cable protective screening to replace steel pipe scaffolds. The wire cable protective screening is flexible material and is not damaged after impact bending by slungshot. The covered rubber protective blanket is made of old and useless cover tyre bands of a bicycle, has toughness, flexibility and corrosion resistance which bamboo raft material does not have, and can fully absorbs impact energy of blasting slungshot. The rubber protective blanket also can reduce blasting noise, blocks dust, and furthest reduces various unsafe factors brought about by the reinforced concrete supporting blasting engineering. Steel pipe brackets do not need to be dismantled after blasting by using the blasting engineering; follow-up construction can be put into operation immediately, thus greatly accelerating the whole construction process and having immeasurable economic benefit.

The invention discloses a power distribution cabinet. The power distribution cabinet includes an apparatus top rack. A lower part of the apparatus top rack is provided with a protective housing. An upper part of the apparatus top rack is provided with a lifting electric oily cylinder. The lifting electric oil cylinder is connected to a power distribution cabinet body which is sleeved inside the protective housing. The power distribution cabinet body is hinged to a cabinet door through a leaf. A lower part of the power distribution cabinet body is provided with a cabinet body pedestal. The cabinet pedestal is adhered to a sealing rubber pad thereon. The apparatus top rack is provided with a waterlogging sensor thereon. The waterlogging sensor is in electrical connection to a controller which is disposed on one side of the lower part of the apparatus top rack. The lower part of the power distribution cabinet body is connected to a telescopic sleeve. The telescopic sleeve cooperates with a fixing sleeve which is arranged on the ground. The power distribution cabinet can be lift above the ground, can prevent theft and damage, can prevent rain. The design of lifting can prevent moisture, and the power distribution cabinet can be automatically lifted in rainy days, and is easy to control, is compatible with practicality and safety.

The invention relates to a transfusion container sealing cover with an easily-torn sealing membrane transfusion pipe and a drug feeding pipe, belonging to a liquid inlet and outlet pipeline and a pipeline sealing device of a transfusion bottle (bag). The easily-torn sealing membrane transfusion pipe and the drug feeding pipe are fixed on the same surface of a cover bottom sheet of a cover body in parallel; the easily-torn membrane transfusion pipe comprises an easily-torn sealing membrane transfusion needle guide pipe and an easily-torn sealing membrane; the drug feeding pipe comprises a drug feeding pipe body, a gasket, a gasket fixing ring and an easy-open cover, the gasket is arranged on a gasket membrane, and the gasket fixing ring is arranged on the gasket; and the cover body comprises the circular cover bottom sheet, a hollow cylinder formed by connecting the side walls of the cover, and a cylinder welding ring formed by outwards extending the edge of the hollow cylinder. The invention has the advantages that double-pipe combiner can realize two functions of drug feeding and transfusion, and has difficult scrap dropping and easy puncture in the process of transfusing puncture; and the transfusion container sealing cover also has lower production cost.

The invention relates to a high-strength pure polytetrafluoroethylene gradient coating filter material, which comprises base cloth, and is characterized in that the base cloth is a polytetrafluoroethylene base cloth; a polytetrafluoroethylene coarse fiber layer and a polytetrafluoroethylene superfine fiber layer are pricked on the polytetrafluoroethylene base cloth; and a polytetrafluoroethylene film is coated on the polytetrafluoroethylene superfine fiber layer. The high-strength pure polytetrafluoroethylene gradient coating filter material has the characteristics of high and low temperature resistance, high acid and alkaline resistance, high humidity resistance, good chemical stability, high filtration efficiency, quick filtration speed, long service life and the like, can be used in various bag-type dusters for flue gas purification, dust removal, dust treatment and material recovery, and has wide application scope.

The invention relates to a cooling method for an oil-immersed transformer and a system thereof, and aims at providing a two-cycle cooling method for the oil-immersed transformer; the transformer oil of the oil-immersed transformer transmits heat to liquid evaporation cooling medium with low temperature by a heat exchanger, and the liquid evaporation cooling medium is vaporized after the temperature thereof rises; gaseous evaporation cooling medium is condensed into liquid by a condensing device, and the liquid reflows to the heat exchanger; another purpose of the invention is a cooling system of the oil-immersed transformer, and the oil-immersed transformer, the heat exchanger and the condensing device are connected together by a pipeline; the transformer oil is stored in the oil-immersed transformer and passes through the oil line part full of the heat exchangers of the pipelines, and the liquid evaporation cooling medium is stored in the evaporation cooling medium part of the heat exchanger; the adopted evaporation cooling medium is fluorocarbon. The cooling method and the system for the oil-immersed transformer solves the problem of large occupying field of the transformer cooling device and outside natural environmental impact and have the advantages of small occupy area, low noise, low energy consumption, safety and reliability.

The invention relates to an electromagnetic shielding material and especially relates to an electromagnetic shielding film and a preparation method thereof. The electromagnetic shielding film possesses a layer structure and is formed by an adhesive layer and a shielding layer. One side of the shielding layer which is combined with the adhesive layer possesses a smooth surface. And the other side possesses a suede structure. The preparation method of the electromagnetic shielding film comprises the following steps: S1. providing an original fabric; S2. coating UV; S3. electroplating; S4. gluing; S5. sticking a release film. The invention provides the electromagnetic shielding film which can save the coating materials and has no pollution, and also provides the preparation method of the electromagnetic shielding film.

The invention provides a rare earth aluminum alloy conductor and a preparation method thereof. The rare earth aluminum alloy conductor comprises the following components in percentage by weight: 0.5-1% of Fe, 0.07-0.1% of Zn, 0.05-0.1% of Si, 0.02-0.04% of Sb, 0.02-0.05% of Sn, 0.15-0.30% of Cu, 0.01-0.02% of Sr, 0.01-0.03% of Te, 0.03-0.05% of rare earth and the balance of aluminum and inevitable impurities. The rare earth aluminum alloy conductor provided by the invention is excellent in electric property and can be used for producing a cable.