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76results about How to "Efficient curing" patented technology

Microencapsulated repairing agent and intelligent self-repairing ultrahigh-strength ultrahigh-toughness cement-based structural material

The invention discloses a microencapsulation repairing agent and an intelligent self-repairing ultrahigh-strength ultrahigh-toughness cement-based structural material, the microencapsulation repairing agent is mainly composed of a humidity-responsive outer layer, a pH-responsive middle layer and a temperature-responsive inner layer, and the outer layer is modified with a silane coupling agent. The intelligent self-repairing ultrahigh-strength ultrahigh-toughness cement-based structural material is mainly prepared from the microencapsulated repairing agent, nano carbon black, nano montmorillonite, nano cellulose and other raw materials. According to the invention, by introducing the self-repairing microcapsule with a specific structure and materials such as nano carbon black, nano montmorillonite and nano cellulose, the strength, toughness and durability of the concrete are remarkably improved, and the concrete has an intelligent self-repairing function.
Owner:江苏博思通新材料有限公司

Modified magnesium phosphate cement anticorrosive material as well as use method and application thereof

The invention relates to the technical field of cement-based anticorrosive materials, and particularly discloses a modified magnesium phosphate cement anticorrosive material as well as a use method and application thereof. The anticorrosive material comprises the following components in parts by weight: 100 parts of modified magnesium phosphate cement, 3-15 parts of a retarder, 1-10 parts of an epoxy resin glue solution, 0.5-5 parts of metakaolin and 15-20 parts of water. The modified magnesium phosphate cement comprises dead burned magnesium oxide and modified phosphate in a mass ratio of (1-4): 1. The modified phosphate is prepared from the following raw materials: nano aluminum oxide, sodium citrate and phosphate in a mass ratio of (0.5-1.5): (0.5-1.5): (20-25). The epoxy resin glue solution comprises uncured epoxy resin glue and a curing agent. The anti-corrosion material provided by the invention has the technical advantages of strong adhesive property and excellent anti-corrosion property, and can better provide protection for a steel structure serving in a marine environment.
Owner:SHANDONG UNIV

UV-curable battery core insulating paint and preparation method thereof

The invention discloses a UV-curable battery core insulating paint and a preparation method thereof, and belongs to the technical field of photocureable paints. The UV-curable battery core insulating paint comprises urethane acrylate, self-made vinyl ether modified urethane acrylate, epoxy acrylate, an acrylate monomer, mercaptan, a coupling agent, color paste, a photoinitiator and a leveling agent. The preparation method comprises the following steps: mixing the polyurethane acrylate, the epoxy acrylate, the acrylate monomer and the mercaptan, stirring at normal temperature for 60-120 minutes, adding the coupling agent, the color paste and the flatting agent, stirring at a high speed for 1-3 hours, adding the photoinitiator in a dark place, and stirring for 20-60 minutes to obtain the UV battery core insulating paint. The diluting capacity and the chemical resistance are considered, and the insufficient performance of matrix resin is supplemented; the combination of a photo-initiation system ensures efficient and rapid curing, adaptability to each light source and effective resistance to oxygen inhibition.
Owner:滁州都铂新材料科技有限公司 +1

Heavy metal curing agent and method for curing heavy metal in coal gangue

The invention discloses a heavy metal curing agent and a curing method of heavy metals in coal gangue, and relates to the field of heavy metal pollution treatment. The heavy metal curing agent comprises a first curing agent, a second curing agent and a third curing agent; wherein the first curing agent comprises silt, fly ash and bentonite, the second curing agent comprises a blend and chitosan loaded on the surface of the blend, the blend comprises quartz sand and calcium carbonate, and the third curing agent comprises a silane compound. The curing agent has an excellent long-term curing effect on heavy metals, and a cured body formed by the curing agent has excellent compressive strength.
Owner:SHENHUA SHENDONG COAL GRP +1

Beryllium dissolution curing agent and stable curing method for beryllium in beryllium-containing material

The invention relates to a beryllium dissolution curing agent and a stable curing method for beryllium in a beryllium-containing material, in particular to the technical field of beryllium pollution prevention, and the beryllium dissolution curing agent comprises, by weight, 1-5 parts of phosphorus-containing waste, 1-3 parts of fluorine-containing waste and 0.1-0.5 part of auxiliary salt. The stable curing method comprises the following steps: carrying out wet ball milling on a beryllium-containing material and the beryllium dissolution curing agent in the first aspect to obtain slurry; and carrying out a curing reaction on the obtained slurry, and then carrying out solid-liquid separation to obtain the beryllium stable curing material. According to the beryllium dissolution curing agent provided by the invention, by designing the beryllium dissolution curing agent and utilizing the synergistic effect of the components, effective matching components can be provided for beryllium components in different occurrence states, so that efficient dissolution and curing of beryllium in a material are realized.
Owner:INSTITUTE OF PROCESS ENGINEERING CHINESE ACADEMY OF SCIENCES

Photo-crosslinking conductive ink based on aliphatic polycarbonate as well as preparation method and application of photo-crosslinking conductive ink

The invention provides photo-crosslinking conductive ink based on aliphatic polycarbonate as well as a preparation method and application of the photo-crosslinking conductive ink. The photo-crosslinking conductive ink comprises an aliphatic polycarbonate polymer, a plasticizer, a crosslinking agent, a crosslinking catalyst and a photo-crosslinking agent. According to the invention, a carbonate monomer 5-methyl-5-carboxyl trimethylene carbonate initiated by PEG2000 is adopted, and an aliphatic polycarbonate polymer is synthesized through a copolymerization reaction and is used as a main matrix material of the conductive ink; the conductive ink not only has good conductivity, but also has biocompatibility and environmental friendliness, and the application range of the conductive ink in the fields of medical instruments, biosensors and the like is widened; the excellent mechanical property ensures that the conductive ink can keep structural integrity and functional stability in practical application, and the conductive ink is particularly suitable for flexible electronic devices and wearable equipment which need to be frequently bent and stretched. The preparation steps are simple and convenient, the process is controllable, raw materials are easy to obtain, energy consumption in the process is low, and the cost advantage is achieved.
Owner:NINGDE NORMAL UNIV

Modified recycled aggregate high-temperature-resistant ultrahigh-ductility concrete and preparation method thereof

PendingCN119241180AImprove high temperature resistanceSuppress high temperature burst phenomenonFiberCarbon nanotube
The invention provides modified recycled aggregate high-temperature-resistant ultrahigh-ductility concrete and a preparation method thereof, and belongs to the technical field of cement-based building materials, the concrete is prepared from the following raw materials in parts by weight: 300-370 parts of cement, 340-420 parts of fly ash, 20-35 parts of dechlorinated fly ash, 600-720 parts of modified recycled coarse aggregate, 280-510 parts of quartz sand, 10-25 parts of polyethylene fiber and 0.5-1 part of multiwalled carbon nanotube. The concrete is prepared from the following components in parts by weight: 50-60 parts of calcium carbonate whiskers, 160-210 parts of water, 3-8 parts of polycarboxylate superplasticizer and 0.5-2 parts of thickener. By adopting the modified recycled aggregate high-temperature-resistant ultrahigh-ductility concrete and the preparation method thereof, the green and environment-friendly high-temperature-resistant ultrahigh-ductility concrete with excellent performance is prepared, and the reutilization of construction wastes and household wastes is realized.
Owner:SHIJIAZHUANG TIEDAO UNIV

A method for solidifying dredged sludge using biocarbonized activated magnesium oxide technology

The present invention discloses a method for solidifying dredged sludge by using biological carbonization activated magnesium oxide technology, and belongs to the technical field of soil solidification. In the present invention, urease-producing bacteria are first used to prepare a pre-hydrolyzed urea solution, and then the pre-hydrolyzed urea solution and an activated magnesium oxide solidifying agent are separately and evenly mixed into dredged sludge with a certain water content according to a certain dosage, stirred to form a slurry, and the slurry is filled in a designated site or model and fully maintained. The present invention greatly reduces the construction cost and improves the feasibility and efficiency of solidification treatment of dredged sludge with high water content by introducing the technology of carbonization of urea solution pre-hydrolyzed by urease-producing microorganisms and activated magnesium oxide solidifying agent.
Owner:NANJING UNIV

Titanium gypsum curing agent, preparation method and application

The invention provides a titanium gypsum curing agent, a preparation method and application, and belongs to the technical field of road engineering materials. The raw materials comprise, by weight, 30-50 parts of an exciting agent, 10-15 parts of a filling material, 30-50 parts of an active solid waste material, 1-10 parts of calcium oxide, and 2-5 parts of a dispersant; the exciting agent comprises an agent A and an agent B in a mass ratio of 0.025-0.08; the agent A comprises sodium hydroxide and potassium hydroxide; and the agent B comprises composite Portland cement and ordinary Portland cement. The synergistic hydration hardening effect among the solid waste raw materials is fully utilized, the solid waste raw materials and the titanium gypsum can generate the synergistic activation effect through the double salt effect and the tetra-coordination isomorphism effect of silicon, a compound or solid solution with certain strength and stability is formed, harmful substances in the titanium gypsum are physically wrapped, and the titanium gypsum is prepared. The effective curing of harmful substances of the titanium gypsum is realized, and certain road strength is generated.
Owner:SHANDONG TRAFFIC PLANNING DESIGN INST

Automobile silencer production device

The invention relates to the field of automobile part machining, and discloses an automobile silencer production device which comprises a first side positioning mechanism and a second side positioning mechanism which are distributed on an extension driving mechanism and used for being matched with an extension arm, a limiting sliding rail and a hydraulic output piece to be used for sleeving silencer shell raw material pieces in a rectangular frame mode. The synchronous anchoring mechanism is located on the supporting rack and matched with the first side guide roller, the bottom guide roller, the second side guide roller, the top guide roller and the trapezoidal top contact block to be used for anchoring a shell raw material blank wound into a rectangle. Through combination of the multiple positioning mechanisms and the synchronous anchoring mechanism, rapid winding and forming of shell raw material pieces are achieved, the production efficiency is improved, accurate control over the forming process is achieved, it is ensured that the raw materials achieve the optimal softening and curing effect in the heating and cooling process, and through cooperative work of the side positioning mechanisms and the synchronous anchoring mechanism, the production efficiency is improved. And a raw material sheet can be quickly wound into a final elliptical shell from a rectangle, so that the production efficiency is remarkably improved.
Owner:NINGJIN COUNTY HENGTONG MUFFLER CO LTD

A high-strength refractory material and its preparation method and application

A high-strength refractory material and its preparation method and application, belonging to the technical field of refractory materials, the raw materials of the refractory material include fused corundum, high-alumina bauxite clinker, metal silicon powder, anti-cracking agent, titanium aluminum carbide and titanium carbide, etc., wherein the anti-cracking agent is prepared by modifying boron phenolic resin, mesophase asphalt, artificial graphite powder and silicon carbide fiber. The refractory material of the present invention adopts metal silicon powder to improve wear resistance and oxidation resistance, titanium aluminum carbide to improve oxidation resistance, titanium carbide to improve strength, and anti-cracking agent after surface modification and film formation to greatly improve thermal shock resistance and reduce thermal expansion rate and slag erosion rate. In addition, adding titanium aluminum carbide can improve strength and thermal shock resistance to a certain extent, has good oxidation resistance, and improves erosion resistance. The refractory material can be used for high carbon steel and low carbon steel, and is particularly suitable for casting high oxygen steel, calcium treated steel and high manganese steel.
Owner:HANDAN GUIQIANHENG MASCH MFG CO LTD

Circuit board solder resist and use method thereof

The invention relates to the technical field of electronic industry. The invention discloses a circuit board solder resist and a use method thereof. The circuit board solder resist comprises the following raw materials: a resin base material, a filler, a diluent, a cross-linking agent, a photoinitiator, a defoaming agent, nicotinamide and polyacrylic acid intercalated hydrotalcite. The use method comprises the following steps: S1, polishing the surface of a PCB, and removing an oxide layer; s2, printing a circuit board solder resist on the PCB by using a screen printing machine; s3, the printed PCB is dried at the temperature of 80 DEG C to 100 DEG C for 15 min to 30 min; and S4, exposing, soaking the PCB by using a developing solution, and washing with clear water. The circuit board solder resist prepared by the invention is good in stability and free of bubble phenomenon.
Owner:HANGZHOU LINAN PENGYU ELECTRONICS

Two-component room temperature fast curing resin composition and article

PendingCN119365548AExcellent fast curingExcellent deep curingNon-macromolecular adhesive additivesOther chemical processesPolymer sciencePtru catalyst
The present invention is characterized by containing (A) an organic polymer which has a molecular chain terminal terminated with a hydrolyzable silyl group and / or a hydroxysilyl group and does not contain an organopolysiloxane structure in the main polymer chain, and (B) a hydrolyzable organosilane compound represented by formula (1) and / or a partial hydrolysis-condensation product thereof at a specific ratio: (1) (R1 is a monovalent hydrocarbon group, n is 1-8, and m is 3 or 4). (C) a first agent of a curing catalyst; the two-component type room-temperature fast-curing resin composition, which is composed of a specific ratio of a component A, a component B and a component C, and a second agent containing (A ') an organic polymer in which the molecular chain end is blocked by a hydrolyzable silyl group and / or a hydroxysilyl group and which does not contain an organopolysiloxane structure in the main polymer chain, has excellent fast curability and deep curability, and also has good workability. Furthermore, during curing, as a release group (release compound), cyclic ketone compounds such as cyclobutanone, cyclopentanone and the like are released and released, so that the problems of harmfulness to a human body and the environment and safety are solved. # imgabs0 #
Owner:SHIN ETSU CHEMICAL CO LTD

A roadbed filler based on high-water-cut gold flotation tailings and its preparation method

The application relates to the technical field of roadbed engineering, in particular to a roadbed filler based on high-water-content gold flotation tailings and a preparation method thereof.A roadbed filler based on high-water-content gold flotation tailings is prepared from the following raw materials: gold flotation tailings, modified precipitation material, curing agent, activator, solid modifier and anti-cracking agent; the water content of the gold flotation tailings is lower than 20%; in the application, the porous precipitation material and the low-carbon cementing material are used to perform pre-dehydration treatment and efficient curing treatment on the high-water-content gold flotation tailings, so that the roadbed filler with low carbon and low cost and with high strength and low shrinkage is obtained.
Owner:SHANDONG HI SPEED CONSTRUCTION MANAGEMENT GROUP CO LTD +2

Method for resource utilization of waste and used textiles by microwave-assisted pyrolysis of red mud catalyst

The application discloses a kind of bauxite catalytic microwave-assisted pyrolysis of waste and old textile resourceization method, belong to microwave-assisted catalytic pyrolysis of waste and old textile processing field.The specific steps are as follows: after washing and dewatering treatment, waste and old textile is dried, granulation;After drying bauxite, grinding and sieving;Waste and old textile and bauxite particles after granulation are treated by microwave pyrolysis;Residual solid after pyrolysis is pyrolysis carbon;After collecting gas generated in the process of pyrolysis, condensation is obtained, and incondensable pyrolysis gas and liquid pyrolysis oil are obtained;The present application utilizes bauxite as catalyst and converts waste and old textile into valuable oil, gas and carbon, realizes the maximum absorption of bauxite and waste and old textile and resource utilization.The present application has low cost, simple operation, and pyrolysis product can meet some energy utilization, so that bauxite and waste and old textile are resourceized, harmless and reduced, achieve the goal of synergistic effect of pollution reduction and carbon reduction, produce good economic benefit, social benefit and environmental benefit.
Owner:KUNMING UNIV OF SCI & TECH

A method for immobilizing arsenic using copper slag

This invention discloses a method for solidifying arsenic using copper slag. The method involves adding arsenic-containing substances to copper slag, mixing it thoroughly, adding a sulfuric acid solution with a mass concentration of 10-25%, stirring evenly at room temperature, molding, demolding, and curing to achieve the purpose of solidifying arsenic. This invention utilizes the chemical reaction between copper slag and sulfuric acid solution to harden the material, thereby generating strength. When used as a casting material, it not only has the characteristics of fast setting time, good stability, and good durability, but also has excellent adhesion, realizing the comprehensive utilization of industrial waste.
Owner:KUNMING UNIV OF SCI & TECH

A smart control method and system for a meibomian gland massager based on AI recognition

This invention relates to the technical field of meibomian gland massage, and in particular to an intelligent control method and system for a meibomian gland massager based on AI recognition. The method includes the following steps: acquiring three-dimensional point cloud data of the patient's meibomian gland surface; extracting feature points and constructing their three-dimensional coordinates based on the three-dimensional point cloud data; generating the massage motion trajectory of the massager using an adaptive path planning algorithm based on the three-dimensional coordinates; acquiring image data of the patient's meibomian gland; retrieving massager parameter data from a preset feature database based on the image data; inputting the massager parameter data into a preset control model; outputting the massage time and massage light intensity; and controlling the massager to massage the patient's meibomian glands based on the massage time and massage light intensity. This application has the effect of improving the massage effect on the patient's meibomian glands.
Owner:GENERAL HOSPITAL OF SOUTHERN THEATRE COMMAND OF PLA

Desulfurization wastewater zero discharge system based on magnetic seed crystal induction and treatment method

The invention discloses a desulfurization wastewater zero discharge system based on magnetic seed crystal induction and a treatment method, the desulfurization wastewater zero discharge system based on magnetic seed crystal induction comprises a premixing module, an atomization module, a magnetic separation module and a regeneration module, the premixing module is used for mixing and conveying slurry, the atomization module is connected with the premixing module and located at the downstream of the premixing module, the atomization module is used for atomizing slurry, the magnetic separation module is connected with the atomization module and located at the downstream of the atomization module, the magnetic separation module is used for capturing and separating magnetic particles, the regeneration module is connected between the premixing module and the regeneration module, and the regeneration module is used for recycling magnetic seed crystals. According to the desulfurization wastewater zero discharge system based on magnetic seed crystal induction disclosed by the invention, a cured product is physically isolated from boiler fly ash while wastewater salt is efficiently cured in flue gas, so that zero discharge of desulfurization wastewater is realized, additional evaporative crystallization equipment is not needed, the magnetic seed crystal can be recycled, and the operation cost is reduced.
Owner:GUODIAN NANJING ELECTRIC POWER TEST RES CO LTD

Building waterproof roll construction rolling equipment

The utility model relates to the technical field of building waterproof roll construction, and discloses building waterproof roll construction rolling equipment which comprises a main body, an inner groove is formed in the main body, and an anti-curing mechanism is arranged in the inner groove. And the anti-curing mechanism comprises a fan, a first flow guide plate, a transition frame body, a second flow guide plate, a heating pipe, a flow guide pipe and an air blowing frame body, the outer side of the first flow guide plate is fixedly connected with the inner side of the inner groove, and the lower surface of the second flow guide plate is fixedly connected with the inner bottom of the inner groove. The rolling equipment for construction of the building waterproof coiled materials can effectively soften cured waterproof coiled materials, so that later rolling operation is facilitated, meanwhile, gas is heated in the inner groove and flows along with the gas, the gas can make contact with the surface of the heating pipe again and is heated again, and therefore the heat efficiency of hot gas is guaranteed, and the service life of the hot gas is prolonged. Therefore, the purpose of softening can be effectively achieved, meanwhile, the gas can be circularly heated, and the softening efficiency is guaranteed.
Owner:杨月琴 +1

An ecological marine material and a method for preparing the same

This invention relates to the field of marine engineering material preparation technology, and particularly to an eco-friendly marine engineering material and its preparation method. The preparation method includes: leaching waste concrete fine powder with ammonium chloride solution to dissolve calcium ions, separating the calcium ion solution and the leachated waste concrete fine powder; mixing waste concrete aggregate, sea sand, and the leachated waste concrete fine powder to prepare a porous framework; mixing urea, reactive bacteria, calcium ion solution, and seawater to obtain a reaction solution; the reactive bacteria include urease hydrolyzing bacteria and carbonic anhydrase bacteria; injecting the reaction solution into the porous framework, and mineralizing the porous framework in a carbon dioxide gas environment to obtain the eco-friendly marine engineering material. This invention breaks through the dependence of traditional cementitious materials on cement, achieving the synergistic development of construction solid waste resource utilization and green marine engineering.
Owner:SHENZHEN UNIV

Slope drainage protection structure in collapsible loess area

The utility model discloses a collapsible loess area slope surface drainage protection structure, including the drainage open ditch who lays along the length direction of slope foot, a plurality of slope surface drainage ditch who lays along the height direction of slope surface and set between two adjacent slope surface drainage ditch's layered protection structure, and new loess layer protection unit includes the anchoring frame group who lays on new loess layer and the geotextile that covers on anchoring frame group, and anchoring frame group is assembled by a plurality of for accommodating soil solidifying agent's anchoring frame, and anchoring frame includes frame, the first mesh of surrounding cloth in frame periphery and the hollow grouting anchor rod of setting on frame. The utility model adopts different protection measures to different layers, forms three -dimensional protection result, and the new loess layer is protected in block through anchoring frame group, adopts hollow grouting anchor rod and tightly links as a whole with old loess layer to new loess layer, fills soil solidifying agent in anchoring frame, and overall adaptation collapsible loess area protection demand and loess area gale environment.
Owner:SHAANXI HUILU WATER & SOIL ECOLOGICAL CO LTD

Multifunctional bioactive dental bulk filling composite resin and preparation method thereof

PendingCN122272374Achange limitationsefficient conversionMethacrylatePolymer science
This invention relates to a multifunctional bioactive dental bulk filling composite resin and its preparation method. The composite resin comprises an organic resin matrix and an inorganic filler; the organic resin matrix comprises polymerizable resin monomers and a photoinitiator system, the polymerizable resin monomers comprising dimethacrylate monomers and E-POSS; the inorganic filler comprises nMgO and sSiO2 with a silanized surface. The preparation method includes the following steps: preparing nMgO powder using a sol-gel method combined with a gradient calcination process; preparing submicron-sized sSiO2 using the Stöber method and subjecting it to surface silanization treatment to obtain silanized sSiO2; mixing the polymerizable resin monomers, E-POSS, and the photoinitiator system, stirring in the dark until a homogeneous resin matrix is ​​formed; adding the obtained nMgO and silanized sSiO2 to the resin matrix in a specific ratio and mixing and dispersing evenly to obtain an uncured paste-like composite resin.
Owner:QINGDAO UNIV +1

Material for curing metal ions in coal gangue as well as preparation method and application of material

The invention discloses a material for curing metal ions in coal gangue as well as a preparation method and application of the material. The material for solidifying the metal ions in the coal gangue is prepared from the following raw materials in parts by weight: 15 to 40 parts of polyacrylamide, 10 to 30 parts of fly ash, 5 to 15 parts of cross-linking agent, 10 to 25 parts of calcium oxide, 1 to 10 parts of chitosan, 1 to 10 parts of montmorillonite, 4 to 15 parts of brucite fiber and 1 to 5 parts of rubber particles. According to the material for curing the metal ions in the coal gangue, multiple mechanisms are used for curing and adsorbing the metal ions in the coal gangue, and the material can form gel in situ among the coal gangue under the alkaline environment condition, so that the gel is filled among the coal gangue, effective plugging is formed among the coal gangue, and the metal ions in the coal gangue are cured and adsorbed. Therefore, escape of metal ions in the coal gangue caused by scouring of liquid such as water is prevented, and the problem of solidification of the metal ions in the coal gangue is effectively solved.
Owner:SHENHUA SHENDONG COAL GRP

An acidification-heat activation based red mud-based salt-activated cementitious material, a preparation method and application thereof

ActiveCN119797787BEfficient curingImprove the excitation effectPhysical chemistryEnvironmental engineering
The application discloses a kind of based on acidification-thermal activation's red mud base salt excitation cementitious material and its preparation method and application, belong to solid waste base cementitious material technical field.The red mud base salt excitation cementitious material provided by the application includes 98~99% red mud-solid waste gypsum complex, 0.2~0.5% water reducing agent and 0.5~1.8% early strength agent by mass fraction;Red mud-solid waste gypsum complex is prepared by thermal activation of acidified red mud and solid waste gypsum with mass ratio of (8~10):1, and the acidified red mud is obtained by neutralizing composite dealkalizer and Bayer red mud;Composite dealkalizer includes 60~70% carboxylic acid component and 30~40% sulfonic acid component.The utilization rate of Bayer red mud is as high as 85% or more, solving the problem of low utilization rate of Bayer red mud in the prior art;At the same time, the obtained cementitious material has good early strength and late strength, and the performance is equivalent to or even better than the existing cement mortar.
Owner:SHANDONG UNIV

Gel microspheres carrying amniotic mesenchymal stem cells as well as preparation and application of gel microspheres

According to the gel microspheres loaded with amniotic mesenchymal stem cells as well as the preparation and the application of the gel microspheres loaded with the amniotic mesenchymal stem cells, polyethylene glycol diacrylate (PEGDA) and powdery amniotic membranes are taken as the basis, various osteogenic differentiation promoting factors and anti-inflammatory regulators are combined, and the amniotic mesenchymal stem cells (hA-MSC) are loaded; when the gel microspheres are prepared, high precision and high consistency of the gel microspheres are realized by utilizing a microfluid technology, so that the average size of the non-spherical microspheres is accurately controlled between 80 microns and 200 microns, the non-spherical microspheres are convenient to transplant or inject, and uniform distribution and effective action of cells in vivo are ensured; through a photopolymerization reaction, the gel microspheres are rapidly cured under mild conditions, keep cell activity and form a cross-linked network structure, and the gel microspheres not only have good biocompatibility and degradability, but also can simulate an in-vivo microenvironment, promote cell survival, proliferation and differentiation, regulate inflammatory response and create a favorable microenvironment for bone defect repair.
Owner:JIANGXI RUIJI BIOTECH CO LTD

High-stability foam glass and preparation method thereof

InactiveCN119118522AConvenient secondary processingImprove stabilitySilicon oxideFoam glass
The invention discloses high-stability foam glass and a preparation method thereof, and relates to the technical field of glass foam. According to the method, the waste graphite electrode is firstly subjected to ball milling into micron-sized fine powder, then a layer of ferroferric oxide is chemically deposited on the surface of the micron-sized fine powder, mutual adsorption of the graphite electrode powder is weakened, then the coated graphite electrode is magnetized, the graphite electrode has the same magnetism, the agglomeration effect is greatly reduced due to repulsive force, and the structure is more stable. Secondly, the waste aluminum ash is subjected to segmented high-temperature calcination, and harmful components are volatilized at high temperature through primary calcination; and the second-stage calcination is combined with microwaves, so that silicon-containing salt in the aluminum ash forms silicon oxide, and the transition of the foam glass melt from a glassy state to a crystalline state is reduced. Meanwhile, ferroferric oxide in a graphite electrode coating film can be combined with heavy metal in the waste aluminum ash residues, so that heavy metal ions are effectively solidified, and pollution is reduced. The prepared glass foam has the effects of high stability and less pollution.
Owner:SHENZHEN XIAOSHENG YICHUANG TECHNOLOGY CO LTD

High-stability environment-friendly plywood base material cabinet door plate and preparation method thereof

The invention discloses a high-stability environment-friendly plywood base material cabinet door plate and a preparation method thereof, the preparation method comprises the processes of single plate carbonization, MDI glue bonding, single plate finishing, staggered joint assembly, plate blank continuous hot pressing and the like, a continuous plate is formed, and the continuous plate can be accurately cut according to the required size. The overall performance of the product is improved, the loss of the carbonized veneer is remarkably reduced, the production process flow is simplified, and the problems that an existing cabinet door plate is poor in stability and prone to deformation are effectively solved.
Owner:DEHUA TB NEW DECORATION MATERIAL CO LTD

Waterproof putty powder and preparation method thereof

PendingCN122255774Alow water absorptionReduce surface powdering
The present application relates to the field of coating technology, in particular to a waterproof putty powder and a preparation method thereof. The waterproof putty powder comprises heavy calcium carbonate, quartz powder, Portland cement, calcium hydroxide, hydroxyethyl cellulose ether, hydrophilic fumed silica, hydrophobic fumed silica and a specific redispersible polymer powder. The polymer powder is prepared by spray drying of ethylene-vinyl acetate copolymer dispersion, polyvinyl alcohol, silane coupling agent, triethylamine and colloidal silica. The preparation method of the present application comprises first preparing the modified polymer powder, and then mixing it with the remaining dry powder components in steps. The construction method involves mixing with acidic water, standing for curing, and then scraping in two batches. Through the design of the core-shell structure of the polymer powder and the sequential addition of functional components, the waterproofness, workability, flexibility and bonding strength after immersion of the putty layer are synergistically improved.
Owner:GUIZHOU ANOTHER ANGLE DECORATION CO LTD

Sludge solidification pretreatment device for water environment treatment

The sludge solidification pretreatment device for water environment treatment comprises a bottom plate and a motor, side plates are fixedly installed on the two sides of the top of the bottom plate, a lifting plate is arranged at the position, close to the bottom, between the two side plates, and a treatment box is fixedly installed in the center of the top of the lifting plate; a filter plate is fixedly mounted in the treatment box, and a hydraulic cylinder is fixedly mounted in the center of the top of the bottom plate. According to the sludge solidification pretreatment device for water environment treatment, through the design of a motor, a vertical plate, an extrusion plate, a connecting column, a transmission wheel, a mounting box, a fan and a heating pipe, the motor is controlled, and the vertical plate can be driven to turn over through the transmission effect of the transmission wheel and a belt, so that the extrusion plate and the mounting box are replaced; and the hydraulic cylinder drives the treatment box to ascend, so that the extrusion plate extrudes the sludge in the box, water in the sludge is filtered out through the filter plate, and primary dehydration is achieved.
Owner:DONGGUAN DONGRI WATER TREATMENT TECH

Grouting reinforcement method for karst area

The invention discloses a grouting reinforcement method for a karst area. The grouting reinforcement method comprises the following steps that S1, karst detection is conducted; in combination with early-stage geological data, an elastic wave CT (Computed Tomography) method and a borehole television imaging method are used for carrying out geological supplementary investigation, and the position distribution, the range size, the filling condition and the water-endowed state of the karst cave are determined; s2, defining a processing range; according to a detection result and engineering geological conditions, defining a karst treatment range; s3, grouting reinforcement construction is conducted, specifically, reinforcement is conducted by combining a filling method and a grouting method according to the geological conditions of the tunnel body engineering, the surrounding environment and the construction technology; s4, quality acceptance: arranging inspection holes according to 5-10% of the total grouting holes, and completing grouting reinforcement construction after all the grouting holes meet the end standard and the inspection holes meet the design requirements; the karst area grouting reinforcement method can be suitable for grouting reinforcement of multiple types of karst areas, slurry is evenly diffused during reinforcement, and the bearing capacity and stability of a foundation are improved.
Owner:SINOHYDRO BUREAU 11 CO LTD