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52results about How to "Good capillary effect" patented technology

Centrifugation and dynamic adsorption combination oil-water separation device

The invention relates to a centrifugation and dynamic adsorption combination oil-water separation device, and belongs to the field of oil pollution treatment. The centrifugation and dynamic adsorptioncombination oil-water separation device mainly comprises a motor, a rotating device, an oil-water separation device, an oriented nanofiber oil conveying pipe and a collection device. According to thecentrifugation and dynamic adsorption combination method, by use of the principle that oil is light and water is heavy and combination of oleophylic and hydrophobic modification of a fiber membrane,efficient oil-water separation of oil-containing sewage is realized under the action of centrifugal force. The oil-containing sewage in an emulsified state is demulsified through a demulsification filter net membrane, and then enters nanofiber oil adsorption cotton which is of a fluffy space structure, is irregularly arrayed and has high oil adsorption rate, with water blocked outside; the oriented nanofiber oil conveying pipe is embedded into the fiber cotton, so that the adsorbed oil dirt can be sucked out in time under the action of the gravity or external suction, and is conveyed into an oil storage barrel, and then the oil adsorption capacity of the nanofiber oil adsorption cotton is recovered. According to the centrifugation and dynamic adsorption combination oil-water separation device disclosed by the invention, oil-containing sewage treatment which has high separation efficiency and separation capacity and can repeatedly use oil is finally realized.
Owner:BEIJING UNIV OF CHEM TECH

Melt nano fiber super-high-efficiency oil absorbent cotton

InactiveCN107042024AImprove oil absorption efficiencyUltra-high specific surface area and porosityLayered productsLiquid separationAbsorption rateCotton cloth
The invention discloses a melt nano fiber super-high-efficiency oil absorbent cotton. The melt nano fiber super-high-efficiency oil absorbent cotton mainly comprises porous cotton cloth layers, oriented nano fiber oil absorbing layers, and a nano fiber oil storage layer; the porous cotton cloth layers are arranged on the outermost layers; the oriented nano fiber oil absorbing layers and the nano fiber oil storage layer are arranged and combined in different sequences; the external surface of each oriented nano fiber oil absorbing layer is coated by the corresponding porous cotton cloth layer firmly, winkles on the external layers of the melt nano fiber super-high-efficiency oil absorbent cotton are formed by the porous cotton cloth layers and the oriented nano fiber oil absorbing layers; the porous cotton cloth layers and the oriented nano fiber oil absorbing layers are relatively thin; the nano fiber oil storage layer is arranged on the internal surfaces of the two oriented nano fiber oil absorbing layers; each of the two surfaces of the nano fiber oil storage layer and the corresponding surface of the oriented nano fiber oil absorbing are contacted with and embedded into each other. According to the melt nano fiber super-high-efficiency oil absorbent cotton, the porous cotton cloth layers with elasticity are taken as the outermost layers, and winkle surfaces are formed by the porous cotton cloth layers with the oriented nano fiber oil absorbing layers, so that the contact area of oriented oil absorbing fiber with oil stain is increased effectively; oil absorbed by the melt nano fiber super-high-efficiency oil absorbent cotton can be recycled via squeezing the melt nano fiber super-high-efficiency oil absorbent cotton, and oil stain absorption rate is maintained.
Owner:BEIJING UNIV OF CHEM TECH

Grain storage bag and preparation method thereof

The invention discloses a grain storage bag and a preparation method thereof and relates to the field of packaging. The grain storage bag is prepared from polylactic acid fibers and jute fibers. The preparation method of the grain storage bag comprises the following steps: preparing a lower layer polylactic acid filament fiber web by adopting a polylactic acid chip; unwinding jute fiber woven roving cloth and directly laying on the lower layer polylactic acid filament fiber web; preparing an upper layer polylactic acid filament fiber web by adopting the polylactic acid chip, and laying on the jute fiber woven roving cloth to form three layers of fiber webs; pre-reinforcing the three layers of fiber webs to obtain polylactic acid filament non-woven fabric; compounding the polylactic acid filament non-woven fabric through an ultrasonic method, cutting according to a certain specification and then sewing and thermally-sealing to obtain the grain storage bag. According to the grain storage bag disclosed by the invention, point-like compounding is performed by using the degradable polylactic acid fibers, the jute fibers with unique fiber cavity structures and the ultrasonic method, so that the grain storage bag has the advantages that the grain quality deterioration is delayed, the grain storage period is prolonged, and the damage due to collision in the grain transporting process is buffered.
Owner:CHANGSHU GOLD SPRING CHEM FIBERS & KNITTINGS

Preparation method of drug-loading hemostatic sponge as well as drug-loading hemostatic sponge prepared from same

The invention discloses a preparation method of drug-loading hemostatic sponge. The preparation method comprises the following steps: (1) preparing lignocelluloses sponge; and (2) loading the lignocelluloses sponge with chitosan and a hemostatic drug in a spraying or immersion manner, and freeze drying to obtain the drug-loading hemostatic sponge. A preparation method of the lignocelluloses spongecomprises the following steps: (1) freezing an alkali urea solution, forming icy slurry, adding lignocelluloses into the icy slurry, and obtaining a lignocelluloses solution; (2) adding a surfactantinto the lignocelluloses solution, stirring, and forming a foam body; (3) freezing the foam body into foam icy slurry, adding a pore forming agent into the foam icy slurry, injection molding, freezing, aging, and obtaining gel; and (4) soaking to remove the surfactant and the pore forming agent in the gel, freeze shaping, freeze drying, and obtaining the lignocelluloses sponge. By adopting the drug-loading hemostatic sponge prepared by the invention, by virtue of the synergistic effect of the chitosan and hemostatic drug, the blood on the surface of a wound can be rapidly absorbed, the blood coagulation of the wound can be effectively promoted, and the bleeding can be rapidly stopped.
Owner:ZHENGZHOU UNIV

Energy-storage heat exchange device

ActiveCN107167013ARealize the purpose of energy storage and heat exchangeLow melting pointHeat storage plantsCold airElectricity
The invention relates to an energy-storage heat exchange device. The energy-storage heat exchange device comprises an energy storage pile, a heat exchanger, a heating tube and a fan, wherein a thermal insulation layer A is arranged at the periphery of the energy storage pile; a gap between the energy storage pile and the thermal insulation layer A is taken as an air flue; a ventilating groove is formed in the energy storage pile; the fan is connected with the heat exchanger through a pipeline; the other end of the fan is accessed into the air flue A through a pipeline; the other end of the heat exchanger is accessed into an air flue B through a pipeline; the air flue A and the air flue B refer to air flues formed between opposite two ends in the energy storage pile and the thermal insulation layer A; an electric heating tube is arranged in the energy storage pile in a penetrating mode for heating the energy storage pile; under driving of the fan, air flow enters the energy storage pile through the air flue A; and air flow is heated by the energy storage pile. The energy-storage heat exchange device utilizes off-peak electricity to heat the energy storage pile, and utilizes the energy storage pile to slowly release heat for heating air flow to form hot air; and after entering the heat exchanger to exchange heat, hot air is changed into cold air for being blown into the fan, and re-enters the air flue A under driving of the fan in a circulating mode, so that the energy-storage heat exchange purpose is realized.
Owner:天津朗华科技发展有限公司

Micro heat pipe and manufacturing method of micro heat pipe

The invention discloses a micro heat pipe. The micro heat pipe comprises a pipe body, a second capillary structure and acting liquid, wherein the two ends of the pipe body are closed, a heated section, a heat insulation section and a condensation section are defined from one end to the other end of the pipe body along the body part of the pipe body; an etching line which is formed after etching is arranged on the inner wall of the pipe body, and the etching line is defined as a first capillary structure and distributed all over the heated section, the heat insulation section and the condensation section; the second capillary structure is arranged in the pipe body and located on the heated section of the pipe body, and the heated section is filled with the second capillary structure which has a liquid adsorbing capillary effect; and the acting liquid is injected into the pipe body. The invention further discloses a manufacturing method of the micro heat pipe. The manufacturing method of the micro heat pipe mainly comprises the steps that the inner wall surface of the pipe body is etched for forming the first capillary structure, liquid injection, vacuumizing and sealing are conducted after the heated section is filled with the second capillary structure and sintered, and then the micro heat pipe is obtained.
Owner:ACMECOOLS TECH

Blended yarn formed by cotton fibers, delustering fibers and silkworm pupa protein fibers

The invention provides blended yarn formed by cotton fibers, delustering fibers and silkworm pupa protein fibers. The blended yarn formed by the cotton fibers, the delustering fibers and the silkworm pupa protein fibers comprises, by weight, 65-75 parts of the cotton fibers, 10-20 parts of the delustering fibers and 15-25 parts of the silkworm pupa protein fibers. The blended yarn formed by the cotton fibers, the delustering fibers and the silkworm pupa protein fibers has the technical advantages that complementation is carried out on the characteristics of the cotton fibers, the characteristics of the delustering fibers and the characteristics of the silkworm pupa protein fibers, the cotton fibers are good in moisture absorption performance and breathability, soft and good in heat insulation; the delustering fibers are also known as matt fibers, are chemical fibers without surface gloss, are made by adding delustering agents to a spinning solution or a fondant before spinning is carried out, and are formed through spinning, so that the fibers can scatter light to eliminate the gloss so as to reduce the transparency and improve the whiteness; the silkworm pupa protein fibers have the advantages that softness and fineness are achieved, the fineness of the silkworm pupa protein fibers is about 1.0-1.8 dtex, and the handfeel of the silkworm pupa protein fibers is soft like the handfeel of cashmere, and is smooth and exquisite like the handfeed of real silk; the blended yarn formed by the cotton fibers, the delustering fibers and the silkworm pupa protein fibers can have the advantages of the cotton fibers, the advantages of the delustering fibers and the advantages of the silkworm pupa protein fibers.
Owner:HAIAN COUNTY BROS SYNTHETIC FIBER

An energy storage heat exchange device

ActiveCN107167013BRealize the purpose of energy storage and heat exchangeLow melting pointHeat storage plantsCold airInsulation layer
The invention relates to an energy-storage heat exchange device. The energy-storage heat exchange device comprises an energy storage pile, a heat exchanger, a heating tube and a fan, wherein a thermal insulation layer A is arranged at the periphery of the energy storage pile; a gap between the energy storage pile and the thermal insulation layer A is taken as an air flue; a ventilating groove is formed in the energy storage pile; the fan is connected with the heat exchanger through a pipeline; the other end of the fan is accessed into the air flue A through a pipeline; the other end of the heat exchanger is accessed into an air flue B through a pipeline; the air flue A and the air flue B refer to air flues formed between opposite two ends in the energy storage pile and the thermal insulation layer A; an electric heating tube is arranged in the energy storage pile in a penetrating mode for heating the energy storage pile; under driving of the fan, air flow enters the energy storage pile through the air flue A; and air flow is heated by the energy storage pile. The energy-storage heat exchange device utilizes off-peak electricity to heat the energy storage pile, and utilizes the energy storage pile to slowly release heat for heating air flow to form hot air; and after entering the heat exchanger to exchange heat, hot air is changed into cold air for being blown into the fan, and re-enters the air flue A under driving of the fan in a circulating mode, so that the energy-storage heat exchange purpose is realized.
Owner:天津朗华科技发展有限公司

Acrylic fiber with flying saucer-like cross section and production method thereof

The invention discloses an acrylic fiber with a flying saucer-like cross section. The acrylic fiber with the flying saucer-like cross section mainly comprises, by mass, 91 to 94% of acrylonitrile and 6 to 9% of vinyl acetate, and is prepared through extrusion by a spinneret plate; and the cross section of the acrylic fiber has a length-breadth ratio of (6-9): 2. The invention also discloses a production method for the acrylic fiber with the flying saucer-like cross section. The production method comprises the following steps: allowing acrylonitrile and vinyl acetate to form a spinning solution in a solvent after copolymerization; heating the spinning solution to 82 to 90 DEG C, extruding the spinning solution from the spinneret plate and forming nascent fibers in a coagulation bath; and subjecting the nascent fibers to washing and drafting so as to form fiber bundles and carrying out oiling, drying and sizing on the fiber bundles so as to prepare the acrylic fiber with the flying saucer-like cross section. According to the invention, the prepared acrylic fiber has excellent performance by adjusting the contents of acrylonitrile and vinyl acetate in a copolymer and the molecular weight of the copolymer, reasonably designing the spinneret plate and adjusting a production process.
Owner:NINGBO ZHONGXIN ACRYLIC FIBERS

Production method for moisture-absorbing sweat-releasing high-strength high-modulus polyethylene

The invention discloses a production method for moisture-absorbing sweat-releasing high-strength high-modulus polyethylene. The production method for the moisture-absorbing sweat-releasing high-strength high-modulus polyethylene comprises the following steps: S100, preparing a raw material; S200, putting the raw material into a twin-screw extruder; S300, after the raw material is put into the twin-screw extruder, enabling the raw material to pass through a spinning box, and extruding the raw material from *-shaped slots of a spinning plate; S400, performing water cooling on the extruded polyethylene fibres, and extracting; and S500, drying, heating and drawing the extracted polyethylene fibres; and after the raw material is extruded from the spinning plate, extruding the polyethylene fibreraw material into * shapes, wherein the ultrafine high-strength polyethylene fibres with the *-shaped cross sections are provided with eight grooves, are large in specific surface area, can guide moisture and are breathable; the specific surface area of a single fibre of 0.4 to 0.5 dpfp is 2 to 3 times that of the single fibre of 2 dfp; and a good capillary effect can be achieved by the spaces among the fibres, so that the moisture absorbing property of the fibres is enhanced. Therefore, the ultrafine high-strength polyethylene fibres with the *-shaped cross sections has good moisture absorbing property and sweat releasing property when the ultrafine high-strength polyethylene fibres with the *-shaped cross sections are applied in the fields of home textile and underwear.
Owner:盐城优和博新材料有限公司

A kind of preparation method of drug-loaded hemostatic sponge and prepared drug-loaded hemostatic sponge

The invention discloses a preparation method of drug-loading hemostatic sponge. The preparation method comprises the following steps: (1) preparing lignocelluloses sponge; and (2) loading the lignocelluloses sponge with chitosan and a hemostatic drug in a spraying or immersion manner, and freeze drying to obtain the drug-loading hemostatic sponge. A preparation method of the lignocelluloses spongecomprises the following steps: (1) freezing an alkali urea solution, forming icy slurry, adding lignocelluloses into the icy slurry, and obtaining a lignocelluloses solution; (2) adding a surfactantinto the lignocelluloses solution, stirring, and forming a foam body; (3) freezing the foam body into foam icy slurry, adding a pore forming agent into the foam icy slurry, injection molding, freezing, aging, and obtaining gel; and (4) soaking to remove the surfactant and the pore forming agent in the gel, freeze shaping, freeze drying, and obtaining the lignocelluloses sponge. By adopting the drug-loading hemostatic sponge prepared by the invention, by virtue of the synergistic effect of the chitosan and hemostatic drug, the blood on the surface of a wound can be rapidly absorbed, the blood coagulation of the wound can be effectively promoted, and the bleeding can be rapidly stopped.
Owner:ZHENGZHOU UNIV
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