48results about How to "High absorption ratio" patented technology

The invention discloses a nano composite Cr-Al-O (chromium-aluminum-oxygen) solar spectrum selective absorption coating and a preparation method thereof. The absorption coating is characterized in that an infrared high reflection layer, a low oxygen absorption layer, a medium oxygen absorption layer and a high oxygen antireflection layer are sequentially deposited on a stainless steel substrate. According to the preparation method of the coating, an electric arc discharging method is adopted to sequentially deposit the infrared high reflection layer, the low oxygen absorption layer, the medium oxygen absorption layer and the high oxygen antireflection layer on the substrate. The coating is reasonable in structure design. The prepared Cr-Al-O composite coating has an absorption ratio of 0.92 to 0.94, a transmitting rate of 0.15 to 0.22, good heat stability and high adhesive force. Meanwhile, the preparation process is free from pollution, the severe environmental pollution problem of the conventional electroplating method is overcome, the problems of the magnetron sputtering method, such as poor heat stability and the high-temperature adhesive force of coating and the problem of the evaporation technology that uniformity of the coating is poor can be solved, and the nano composite Cr-Al-O solar spectrum selective absorption coating is expected to be applied to the medium-high-temperature solar utilization field.

The invention discloses a plant-based semi-interpenetrating network haemostatic dressing, which is a medical dressing with a semi-I type interpenetrating network (Semi-I) structure employing plant polysaccharide as matrix. Due to the unique semi-I type interpenetrating network structure, the performance indexes of the plant-based semi-interpenetrating network haemostatic dressing in the aspects of liquid absorbency rate, liquid-absorbing saturation time and expanding volume are obviously improved; and the plant-based semi-interpenetrating network haemostatic dressing is easy to bond and adhere, absorbable after an operation, and suitable for immediate stopping of bleeding in various surgical operations.

The water absorbing and maintaining composite material consists of water soluble unsaturated ethylene monomer, sericite in the amount of 2-300 wt% of the ethylene monomer, and water soluble free radical polymerization initiator in the amount of 0.001-1 wt% of the ethylene monomer. The preparation process includes adding sericite into 5-50 % concentration water soluble unsaturated ethylene monomer solution with water soluble free radical polymerization initiator or water soluble free radical polymerization initiator and crosslinking agent, dispersing, heating to 20-90 deg,c for polymerization of 1-10 hr, drying of the polymerized product at 40-150 deg.c and crushing mechanically to obtain grain product. The water absorbing and maintaining composite material has low cost, high absorption to calcium and magnesium ion aqua and high salt tolerance, and is suitable for use in agriculture and forestry.

Disclosed is an acoustic panel that includes a surface element including fibrous material. The acoustic panel also includes a back element that has a honeycomb structure and includes fibrous material, and an intermediate element that is arranged between the surface element and back element and has a porous structure.

The water absorbing and maintaining composite material consists of water soluble unsaturated ethylene monomer, illite-clay mineral in the amount of 2-300 wt% of the ethylene monomer, and water soluble free radical polymerization initiator in the amount of 0.001-1 wt% of the ethylene monomer. The preparation process includes adding illite-clay mineral into 5-50 % concentration water soluble unsaturated ethylene monomer solution with water soluble free radical polymerization initiator or water soluble free radical polymerization initiator and crosslinking agent, dispersing, heating to 20-90 deg,c for polymerization of 1-10 hr, drying of the polymerized product at 40-150 deg.c and crushing mechanically to obtain grain product. The water absorbing and maintaining composite material has low cost, high absorption to calcium and magnesium ion aqua and high salt tolerance, and is suitable for use in agriculture and forestry.

A super-hydrophobic oil-absorbing sponge with a silicone resin as a matrix and a preparation method thereof relate to an oil-absorbing sponge. The mass ratio composition of the superhydrophobic oil-absorbing sponge with silicone resin as the matrix: matrix 3-10; titanium dioxide 5-20; p-xylene 6-20; dopant 150-100; dopant 26-20 20; the dopant 1 is an easily soluble small molecular crystal particle, and the dopant 2 is a non-volatile solvent compatible with p-xylene. Mix the matrix, a non-volatile solvent compatible with p-xylene, and p-xylene, then add soluble small molecular crystal particles and titanium dioxide, remove the superficial liquid after centrifugation, heat, then remove the cured resin, water and Acetone washes away easily soluble small molecular crystal particles, non-volatile solvents compatible with p-xylene and p-xylene, which is a super-hydrophobic oil-absorbing sponge based on silicone resin. Has good oil absorption performance.

The invention discloses a pyramidal silicon carbide ceramic absorber and a preparation method thereof. Particularly, the pyramidal silicon carbide ceramic absorber is prepared from the following components in percentage by weight: 40-60% of SiC, 5-15% of SiO2, 15-20% of MgO, 0-10% of BaCO3, 0-3% of MnO2, 0-2% of CoO, 0-2% of V2O5, 0-2% of Al2O3, 5-10% of semi-refined paraffin wax and 1-5% of PE (polyethylene) plasticizer. The preparation method comprises the following components: carrying out high-temperature compounding, carrying out injection molding to obtain pyramids, degreasing and sintering to obtain the final product. The pyramidal ceramic absorber with broadband absorption property prepared by the injection molding process has the characteristics of simple technique, stable properties, favorable heat conductivity coefficient, high hemispherical emittance, high vacuum applicability and the like.

The invention discloses a rapid deposition process for a combined-type spectrally selective absorption film layer. The combined-type spectrally selective absorption film layer is composed of an infrared reflection layer, an absorption layer and an anti-reflection layer from inside to outside in a sequential superposing manner, wherein the infrared reflection layer and the absorption layer are obtained by adopting a magnetron sputtering method, and the anti-reflection layer is obtained by adopting a hollow cathode airflow sputtering method. With the adoption of the process disclosed by the invention, the high purity of the infrared reflection layer and the absorption layer prepared by the magnetron sputtering method is adequately utilized, and the advantage of accurately controlling the content of metals in the film layer and the thickness of the film layer, of the magnetron sputtering method can be accurately exerted, thus obtaining the solar spectrally selective absorption film layer with a high absorption ratio and a low emission ratio; and the metal compound prepared by virtue of airflow reaction sputtering has the advantages of being high in purity, compact, and high in deposition speed, thus improving the oxidation resistance, corrosion resistance and high-temperature resistance of the whole spectrally selective absorption film layer. The process disclosed by the invention has the advantages of being high in deposition efficiency, high in deposition speed, firm in the combination of the film layer, and greatly improved in the performance of the film layer.

The water absorbing and maintaining composite material consists of water soluble unsaturated ethylene monomer, rectorite-clay mineral in the amount of 2-300 wt% of the ethylene monomer, and water soluble free radical polymerization initiator in the amount of 0.001-1 wt% of the ethylene monomer. The preparation process includes adding rectorite-clay mineral into 5-50 % concentration water soluble unsaturated ethylene monomer solution with water soluble free radical polymerization initiator or water soluble free radical polymerization initiator and crosslinking agent, dispersing, heating to 20-90 deg,c for polymerization of 1-10 hr, drying of the polymerized product at 40-150 deg.c and crushing mechanically to obtain grain product. The water absorbing and maintaining composite material has low cost, high absorption to calcium and magnesium ion aqua and high salt tolerance, and is suitable for use in agriculture and forestry.

The invention relates to a degradable mineral fertilizer water-retaining agent and a preparation method thereof, and is mainly applied to the agriculture and forestry field. The degradable mineral fertilizer water-retaining agent is prepared from Xinyang bentonite, activated mica, cassava starch, a water-soluble polymeric monomer, water, a free radical polymerization initiator, a cross-linking agent and other raw materials by means of mixing, heating polymerization, drying and crushing. Specifically, the adding weight of the Xinyang bentonite, activated mica and cassava starch respectively account for 20-100%, 20-100% and 20-60% of the water-soluble polymeric monomer. The degradable mineral fertilizer water-retaining agent provided by the invention is a fertilizer, also is a water-retaining agent, and can play the role of maintaining soil moisture, saving water resources, and supplying fertilizer stably and durably. The degradable mineral fertilizer water-retaining agent has the characteristics of simple preparation method and low cost, also has potassium endowment, water absorption and water retention multiple functions, and has biodegradability at the same time.

The water absorbing and maintaining composite material consists of water soluble unsaturated ethylene monomer, rectorite-clay mineral in the amount of 2-300 wt% of the ethylene monomer, and water soluble free radical polymerization initiator in the amount of 0.001-1 wt% of the ethylene monomer. The preparation process includes adding rectorite-clay mineral into 5-50 % concentration water soluble unsaturated ethylene monomer solution with water soluble free radical polymerization initiator or water soluble free radical polymerization initiator and crosslinking agent, dispersing, heating to 20-90 deg,c for polymerization of 1-10 hr, drying of the polymerized product at 40-150 deg.c and crushing mechanically to obtain grain product. The water absorbing and maintaining composite material has low cost, high absorption to calcium and magnesium ion aqua and high salt tolerance, and is suitable for use in agriculture and forestry.

the invention discloses a preparing method of foaming magnesium polyacrylate imbibition resin, which comprises the following steps: adopting 63-72% acrylic emulsion and 27-36% magnesium hydroxide as raw material; adding compound 0.2-0.5% foamer, 0.04-0.09% crosslinking agent and 0.4-0.8% potassium persulphate; neutralizing; crosslinking; squeezing; drying; breaking; foaming; metering; packing. the compound foamer is composed of benzene disulfonate hydrazide and nitrourea and the compound crosslinking agent is composed of epichlorohydrin and methylene diacrylamide.

The invention provides an enhanced concrete internal curing high-water-absorption microsphere material and a preparation method thereof. The enhanced concrete internal curing high-water-absorption microsphere material is prepared from the following raw materials: nano silicon dioxide, chitosan, glutaraldehyde, Arabic gum, methacrylic acid, glacial acetic acid, cumene hydroperoxide, ferrous chloride and sodium ethoxide. By improving the transition area of the cement paste and the aggregate and modifying the microstructure in the cement-based material, the porosity is reduced, and the mechanicalproperty is improved. The whole preparation process flow is relatively simple, professional technicians do not need to operate and guide, and only the operation is carried out according to the description of the invention. The strength, durability, service life and the like of cement concrete are obviously improved by the reinforced concrete internal curing high-water-absorption microsphere prepared by the method disclosed by the invention.

The invention discloses a refraction and condensation type flat-plate solar collector and belongs to the field of solar medium and high temperature applications. The energy flux density of the solar collector is enhanced by converging sunlight through a giant Fresnel line focal lens, high temperature is produced on a focus line, heat is efficiently collected through an existing solar vacuum heat collection tube, and a U-shaped metal tube is led into a heat-conducting medium to exchange the high temperature for heat energy and lead out the heat energy. In this way, a high-temperature heat source is provided for the life and industrial fields of heating, air conditioning, spinning and weaving, printing and dyeing, paper making, rubber, sea water desalination, sewage purification and the like. The multiple refraction and condensation type flat-plate solar collectors form arrays to form a high-power solar steam boiler which can allow a thermal power generation unit to generate power.

The invention relates to a high water-absorbing water-loss reducer formulation and its process for preparing, in which the water-absorbing water-retaining composite containing soda-aluminosilicate colloid is characterized in that it consists of soda-aluminosilicate colloid, water-soluble vinyl unsaturated monomer and water-soluble free radical polymerization initiator, in which the additive mass of the soda-aluminosilicate colloid is 2-200 % of the water-soluble vinyl unsaturated monomer and the additive mass of the water-soluble free radical polymerization initiator is 0.001-1 % of the water-soluble vinyl unsaturated monomer. The process for preparing includes: decentralizedly processing the soda-aluminosilicate colloid dissolved with water-soluble free radical polymerization initiator or water-soluble vinyl unsaturated monomer dissolved with water-soluble free radical polymerization initiator and coupling agent with 20-90 % of weight concentration at 30-90 DEG C and heating them for 1-10 hours, slicing the produced gel, drying, comminuting and screening to obtain the product at 40-150. The invention is of low preparation cost, higher input scaling factor and better salt resistance, so is suitable for agrisilviculture.

The invention aims at providing an infrared-ray absorption film having a low reflection factor and a high absorption ratio equivalent to those of gold black through an economical process such as ink jet printing involving the steps of printing a porous material solution and then conducting sintering without using a vacuum process. The invention provides an infrared-ray absorption film using a porous material which suitably has a pore size within the range of hundreds of nm to several μm and is formed of a metal oxide of carbon or silica, an organic / inorganic hybrid material or a meso-porous material having the composition described above. The infrared-ray absorption film is produced by applying the porous material precursor solution onto a substrate and then conducting sintering.

The invention relates to the technical field of solar energy conversion, in particular to a solar heat absorbing film layer and a preparation method of the solar heat absorbing film layer and a solarheat absorbing plate and preparation method of the solar heat absorbing plate. The solar heat absorbing film layer comprises an absorbing layer and an anti-reflection self-cleaning layer arranged on the absorbing layer, the anti-reflection self-cleaning layer is formed by curing titanium dioxide sol mixed with silicon dioxide. The preparation method of the solar heat absorbing film layer comprisesthat a titanium dioxide sol mixed with silicon dioxide is coated on the absorbing layer; and the anti-reflection self-cleaning layer is formed by curing. The solar heat absorbing plate comprises a base material and the solar heat absorbing film layer arranged on the surface of the base material. The preparation method of the solar heat absorbing plate comprises the following steps that the absorbing layer is formed on the surface of a base material; and an anti-reflection self-cleaning layer is formed on the absorbing layer. According to the invention, the anti-reflection self-cleaning layerformed by curing titanium dioxide sol mixed with silicon dioxide is arranged on an absorbing layer, so that the solar heat absorbing film layer can have a high absorbing ratio and a low emission ratio, and also has good anti-fouling capability and weather resistance.

The invention provides a soil water-retaining agent for saline-alkali soil and a preparation method. The soil water-retaining agent is prepared by the following steps: performing intercalation treatment on kaolin by using N,N-dimethylacrylamide, adding acrylic acid and starch for gelatinization, moving the mixture into a reaction kettle, adding dextrin, straw powder, corn bran, diatomite, an initiator and a cross-linking agent in a nitrogen atmosphere, performing a mixing reaction, and crushing a reaction product to obtain the soil water-retaining agent. In the process of producing the soil water-retaining agent by graft polymerization of the starch into the composite water-absorbing resin provided by the invention, by adding the N,N-dimethylacrylamide intercalated kaolin, the alkali resistance of the water-retaining agent and the water absorption capacity of the water-retaining agent to saline water are remarkably improved, so that the water-retaining agent has good salt and alkali resistance, and the application range of the soil water-retaining agent is effectively widened.

The invention discloses a papermaking and composite processing technology of a composite liquid absorbing material. The technology comprises the steps of composite layer upper paper papermaking, composite layer lower paper papermaking, compounding and rewinding processing. The invention further discloses papermaking and composite processing equipment for the composite liquid absorbing material, the papermaking and composite processing equipment comprises a first rotary screen forming mechanism, a second rotary screen forming mechanism, a drying cylinder drying mechanism, a composite drying cylinder drying mechanism and a novel adjustable tension rewinding mechanism, and the first rotary screen forming mechanism and the second rotary screen forming mechanism are symmetrically arranged and are opposite in rotating direction; a squeezing composite mechanism is installed under the composite drying cylinder drying mechanism, and a powder scattering mechanism is installed under the squeezingcomposite mechanism; the process for adding the high-molecular water-absorbent resin is simple and convenient to operate, and the total adding amount is easy to control; the water absorption speed, the water locking performance and the comfort level of the liquid absorption material are improved; the water absorption rate is increased to 50 times or above, and the diffusion and permeation width can be adjusted as required; continuous production is realized; and powder spraying process is uniform.

The invention provides a super water-absorbing resin continuously prepared by reversed-phase suspension polymerization. According to the resin, construction of a continuous suspension system and continuous two-section tubular polymerization are adopted to prepare double-shell-layer hollow-structure water-absorbent resin particles. A polymer template is introduced at the early stage of polymerization to form a core-shell structure, then continuous tubular polymerization is carried out to form a double-shell layer, and finally an inner core is removed to obtain the water-absorbing particles withthe double-shell layer hollow structure. The water absorption rate of the water-absorbing resin particles is higher, the liquid absorption rate is higher, and particle size distribution is more centralized.

The invention discloses crylic acid water-absorbent resin with an excellent water-retaining property and yellowing resistance and a preparation method thereof. The water-absorbent resin is prepared by using raw materials including an acrylic monomer solution and a comonomer which is 0-50wt% of quantity of crylic acid used by a core, the water-absorbent resin is of a core-shell structure, and a shell contains 10-1000ppm of anti-yellowing polymerization inhibitor by weight of the crylic acid in the shell. The preparation method is that the comonomer, a cross-linking agent and an initiator are added in the acrylic monomer solution to conduct polymerization reaction; a hydrogel polymer obtained by the reaction is smashed, dried, grinded and sieved to obtain the core of the water-absorbent resin; a mixed solution of the crylic acid, the cross-linking agent and the initiator containing the anti-yellowing polymerization inhibitor is evenly mixed, and heat treatment is carried out on the surface of the core to obtain a product; and a surface crosslinking solution is evenly sprayed on an initial product, and high temperature crosslinking is carried out to obtain the product of water-absorbent resin. The product has the advantages of excellent water-retaining property and yellowing resistance.

The invention discloses a hydrophilic monomer ratio controlled synthetic technology for a hydrophobic high strength resin. The hydrophilic monomer ratio controlled synthetic technology for the hydrophobic high strength resin comprises the following steps: 1, hydrating sodium bentonite; 2, dissolving reaction substances; and 3, adding acrylic acid, an initiator and a crosslinking agent, and carrying out a pre-reaction and a heating reaction to obtain the resin. The synthetic technology which can successfully synthesize the hydrophobic high strength resin has the advantages of high synthetic yield, simple synthetic step, and synthetic cost reduction; and the imbibition rate of the synthesized hydrophobic high strength resin is be improved by controlling the hydrophilic monomer ratio in the synthetic technology.

The invention discloses a bentonite dosage controlled synthetic technology for a hydrophobic high strength resin. The bentonite dosage controlled synthetic technology for the hydrophobic high strength resin comprises the following steps: 1, hydrating sodium bentonite; 2, dissolving reaction substances; and 3, adding acrylic acid, an initiator and a crosslinking agent, and carrying out a pre-reaction and a heating reaction to obtain the resin. The synthetic technology which can successfully synthesize the hydrophobic high strength resin has the advantages of high synthetic yield, simple synthetic step, and synthetic cost reduction; and the imbibition rate of the synthesized hydrophobic high strength resin is be improved by controlling the bentonite dosage in the synthetic technology.

The invention discloses a superabsorbent medical composite haemostasis sponge and a preparation method thereof. The haemostasis sponge comprises the raw materials: alginate, fibrin glue, sephadex gel, polyuronide hemicelluloses, hyaluronan, gluconic acid strontium, iron-dextrin, epigallocatechin, 5-methoxy-N,N-diisopropyltryptamine, mint alkyl diamine, eucalyptole, puffball powder, a cross-linking agent, tween-60, ethanol 2, and distilled water. The liquid absorbing capability of the medical composite haemostasis sponge is strong, haemostasis time is short, effect is good, invasion of an extraneous substance can be isolated, wound healing is promoted, and the superabsorbent medical composite haemostasis sponge can be widely used for haemostasis and restoration of burn, wound, and surgical operation wound, and has good application value.

The invention relates to vacuum tube wall type heat absorber. Straight-through vacuum tubes (1) are connected in series or parallel by U-shaped connection tubes (2) to form a single series heat absorbing module (17) or single parallel heat absorbing module (18). A plurality of series heat absorbing modules (17) or parallel heat absorbing modules (18) are connected in series or parallel by connecting tubes (11) to form the vacuum tube wall type heat absorber. The vacuum tube wall type heat absorber is in a two-dimensional curved surface or external cylinder or plane shape. The straight-through vacuum tubes (1) are arranged horizontally, vertically relative to the ground, slantwise or juxtaposedly in multiple rows. The vacuum tube wall type heat absorber is arranged on the top of a heat absorbing tower (7) unidirectionally or circumferentially. The back surfaces of the straight-through vacuum tubes (1) can be provided with compound parabolic concentrators (CPC) or plane or hemispherical secondary condensers (13).

An ink for a piezoelectric driving-type inkjet for printing on a resin-based ink receiving layer formed on one surface of a reflection-type display contains 30% by weight to 75% by weight of a solvent which hardly dissolves the ink receiving layer and 3% by weight to 30% by weight of an alcohol-based solvent which easily dissolves the ink receiving layer.

The invention relates to the technical field of surface engineering, and discloses a coating with three functions of stray light elimination, molecular adsorption and thermal control as well as a preparation method and application of the coating. The coating comprises carbon black, a zeolite molecular sieve and aluminum dihydrogen phosphate. The invention provides a coating with stray light elimination, molecular adsorption and thermal control functions, which takes carbon black, a zeolite molecular sieve and aluminum dihydrogen phosphate as raw materials, the highest solar absorption ratio of a coating formed by the coating is greater than 0.98, the hemispherical emissivity can reach 0.89-0.92, and the saturated adsorption capacity can reach 50-95 mg / g; meanwhile, along with the continuous increase of the absorption amount of molecular pollutants, the solar absorption ratio is only slightly reduced, and the hemispherical emissivity is basically unchanged. In addition, the preparation method of the coating is simple and easy to implement, and industrial preparation is easy.

The invention discloses a vacuum collector tube process, in particular to a vacuum collector tube and a process for preparing a coating thereof. The scheme of the preparation process includes sequentially plating an AlN-Al bonding layer, a pure copper high infrared reflection layer, an Aln-Ti high metal absorbing layer, an Aln-Ti low metal absorbing layer and an AlN antireflection layer on the outer surface of a glass inner tube. According to the vacuum collector tube and the preparation process for the coating thereof, titanium metal is used by the absorbing layer as the main coating material, defects of low stability, fast aging and short service life of vacuum tubes are overcome, the absorption ratio of vacuum collector tube is enabled to be over 96% due to the special coating structure, and the vacuum collector tube is capable of stably supplying industrial hot water for users.

An ink for a piezoelectric driving-type inkjet for printing on a resin-based ink receiving layer formed on one surface of a reflection-type display contains 30% by weight to 75% by weight of a solvent which hardly dissolves the ink receiving layer and 3% by weight to 30% by weight of an alcohol-based solvent which easily dissolves the ink receiving layer.