20results about How to "No release" patented technology

The utility model relates to the technical field of building decoration materials, and discloses an environment-friendly decorative plate for indoor decoration, which comprises an outer frame, an environment-friendly mechanism is mounted on the inner wall of the outer frame and used for improving the water resistance and deformation resistance of the decorative plate, and mounting mechanisms are mounted on the front side and the rear side of the outer wall of the environment-friendly mechanism. And the mounting mechanism is used for conveniently mounting the decorative plate. The aluminum alloy keel material forms a net structure and a space stress system, loads can be transmitted in multiple directions, single-point stress concentration is avoided, the base material layer is formed by pressing bamboo and wood fibers and environment-friendly adhesives, the environment-friendly performance is excellent, formaldehyde release is avoided, the reinforcing layer is the glass fiber gridding cloth, the reinforcing layer is compounded with the base material layer through the hot pressing technology, and the heat insulation performance is good. And the finish coat is a water-based UV coating and covers the surface of the enhancement layer through a spraying process, so that the water resistance and the deformation resistance are high, and the water-based UV coating is suitable for a humid environment.

This invention discloses an environmentally friendly plasticizer using modified lignin as a carrier, a rubber composition, and a method for preparing the same, relating to the field of rubber processing technology. The environmentally friendly plasticizer using modified lignin as a carrier, by weight, comprises the following components: 50 parts modified lignin, 25 parts plasticizing active ingredient, 8 parts dispersant, 5 parts anti-aging agent, and 3 parts stabilizer. The modified lignin is a lignin oligomer containing ester, acetyl, and ether cross-linked structures, with a weight-average molecular weight of 800-1200 Da, a dispersion coefficient ≤1.5, and a carboxyl content ≤0.2 mmol / g. This invention successfully overcomes the technical defects of existing plasticizer carriers, such as high toxicity, difficulty in degradation, and poor compatibility with polymer matrices, providing an environmentally friendly plasticizer using modified lignin as a carrier. This technical solution achieves the dual goals of high-value utilization of lignin and greening of the plasticizer product.

The invention discloses a modified cellulose nanofiber reinforced polyvinyl alcohol formaldehyde-free adhesive film as well as a preparation method and application thereof, and relates to the technical field of wood adhesives. The specific preparation method comprises the following steps: preparing a deep-eutectic solvent from citric acid, choline chloride and water, and adding a crushed bleached pulp board into the deep-eutectic solvent to obtain a modified cellulose suspension; carrying out solid-liquid separation, washing and dispersing on the modified cellulose suspension to obtain a modified cellulose nanofiber dispersion liquid; adding polyvinyl alcohol into water, heating and stirring to obtain a polyvinyl alcohol aqueous solution; adding the modified cellulose nanofiber dispersion liquid into a polyvinyl alcohol aqueous solution, and then pouring and drying to obtain a modified cellulose nanofiber reinforced polyvinyl alcohol formaldehyde-free adhesive film; the adhesive film has excellent bonding performance, thermal stability and mechanical property, is environment-friendly and convenient to store and transport, and can greatly reduce energy consumption, save cost and reduce pollution when the adhesive film prepared by the invention is used for preparing plywood.

The present application relates to a kind of environment-friendly flame-retardant cold-pressing adhesive and its preparation method.The raw materials of the environment-friendly flame-retardant cold-pressing adhesive include 14-21 parts of modified hydrosol, 5-15 parts of magnesium sulfate, 25-35 parts of magnesium chloride, 95-105 parts of magnesium oxide and 0.001-0.01 parts of boric acid by weight.The modified hydrosol is prepared by oxidation crosslinking reaction of propylene hard monomer and hydrosol precursor in the presence of oxidant and crosslinking agent.The adhesive obtained by compounding modified hydrosol with magnesium oxychloride and magnesium oxysulfate inorganic glue has the advantages of high mechanical and bonding strength, good water resistance, and good flame-retardant effect.The modified hydrosol provided by the present application has crosslinking network and abundant hydroxyl and carboxylic acid groups, which gives the adhesive excellent permeability and bonding strength.Magnesium oxychloride inorganic glue enhances the mechanical strength of the adhesive, and magnesium oxysulfate inorganic glue enhances the water resistance of the adhesive.The present application also relates to a plywood containing the above-mentioned environment-friendly flame-retardant cold-pressing adhesive and its preparation method.

The application discloses a kind of high flame-retardant temperature-resistant corrosion-resistant optical fiber composite cable and preparation method thereof, belong to cable manufacturing technical field, from inside to outside include optical fiber unit, conductor layer, insulating layer, shielding layer, anticorrosive layer and sheath layer in sequence.Optical fiber unit uses ceramicized silicone rubber buffer layer;Conductor layer is nickel-plated copper alloy stranded wire, and oxidation resistance is enhanced by nano titanium dioxide sol treatment;Insulating layer is three-layer co-extrusion structure;Shielding layer uses aluminum-plastic composite tape and plated tin copper wire braided composite structure;Anticorrosive layer is polytetrafluoroethylene film treated by plasma;Sheath layer uses two-component ceramicized silicone rubber, and it is flexible at room temperature vulcanization, and it is converted into ceramic body at high temperature.The application realizes excellent continuous use stability, strong corrosion resistance in salt spray environment and other performances through the synergistic design of multilayer structure, is suitable for high temperature, corrosion, fire and other harsh environments, significantly improves the safety and durability of composite cable.

The invention discloses a method for mineralizing marine diatom memory-losing shellfish poison through hydroxyl free radicals and an offshore device, and relates to marine shellfish poison treatment. The method comprises the following steps: culturing nitzschia in a control enclosure, extracting a nitzschia solution, pumping the nitzschia solution into a main pipeline, generating a high-concentration OH solution by OH solution generation equipment, injecting the high-concentration OH solution into a liquid / liquid mixing and dissolving device, cutting and mixing the OH solution and the nitzschia solution at a throat pipe, crushing the mixture into a huge amount of fine liquid drops, rapidly mineralizing memory-losing shellfish poison by OH at the moment of collapse of the liquid drops, and killing the nitzschia at the same time; one path of OH-killed algae is directly injected into the treatment I enclosure through a main pipeline I, the other path of OH-killed algae is introduced into a flocculation stirring tank through a main pipeline II to form flocs, the flocs are injected into the treatment II enclosure after forming flocs at a water conveying section, and the flocs are pumped into a flocs storage box after settling to the bottom of the enclosure; the sea water in the enclosure of the treatment I and the treatment II is pumped into a detection branch pipeline, and the concentration of memory-losing shellfish poison and the density of algae in the enclosure are monitored on line in real time. The device inhibits the transmission of the memory-losing shellfish poison along the marine food chain, and ensures the marine ecological safety.

The application belongs to the technical field of cable fire prevention, and relates to a fireproof cable groove and a preparation method thereof. The fireproof cable groove is installed at a joint of a railway viaduct or a tunnel cable trench, is made of a full inorganic material, and has a simple and easy-to-operate preparation method. The fireproof cable groove comprises a cable groove body and connecting pieces installed at two ends of the cable groove body. The cable groove body is sequentially nested from outside to inside with an outer fireproof structure shell, an intermediate thermal insulation layer and an inner fireproof inner container. The inner side of the slot of the outer fireproof structure shell is provided with an inwardly extending inward flange along the length direction, and the outer side of the slot of the inner fireproof inner container is provided with an outwardly extending outward flange along the length direction. The inward flange and the outward flange are arranged in a top-and-bottom corresponding mode, and are mechanically connected through the connecting pieces at the two ends. The cable groove has a unique nested structure, can realize efficient heat insulation under high-temperature long-time fire burning of 800 DEG C or above, has excellent outdoor weather resistance, corrosion resistance and convenient installation and maintenance, and can control the cost within an acceptable range of engineering.

The invention relates to a bismuth-based adsorption material and a preparation method and application thereof, and relates to the technical field of waste gas treatment, and a bismuth-based adsorption material finished product Bi (at) AC for adsorbing gaseous iodine is obtained through the steps of AC carrier pretreatment, homogeneous phase A liquid preparation, homogeneous phase B liquid preparation, Bi (at) AC preparation and the like. The preparation method has the advantages that absolute ethyl alcohol is used as a solvent, ethylene glycol is used as a reducing agent, Bi (NO3) 3.5 H2O is used as a modifier, a solvothermal one-step synthesis simple method is adopted, and metal active sites are provided for activated carbon through loading of a bismuth-based material in a bismuth modification mode; the original single physical adsorption of activated carbon is converted into adsorption of physical action and active site chemical action of an activated carbon pore structure, so that the adsorption performance of gaseous iodine is improved, a complex and high-energy-consumption pyrolysis method is omitted, the preparation period is short, and no toxic gas is released in the preparation process.

This utility model discloses a positioning device for high-power TVS diode raw materials in automotive applications. It includes a carbon mold base plate with multiple frames on it. Each frame has multiple carbon mold cover plates that cooperate with the base plate to fix the frames. The cover plates have slots for placement. Small solder pads and primary solder pads are placed on the frames. A chip is placed on the primary solder pad, a secondary solder pad is placed on the chip, and a connecting piece is placed on the secondary solder pad. The device achieves rapid and accurate positioning of the frames on the base plate by engaging the frame positioning pins with the frame positioning holes on the carbon mold base plate, laying the foundation for consistent batch assembly. The cover plate positioning posts of the carbon mold cover plates align with the cover plate positioning holes on the base plate, and the positioning pin receiving holes avoid interference with the frame positioning pins, ensuring precise positioning and preventing interference when the cover plates are fastened. This further secures the frames and each layer of raw materials, preventing component displacement during assembly.

The invention belongs to the technical field of raffinate acid purification, relates to an extraction agent for raffinate acid purification and a preparation method thereof, and has the advantages that the composite extraction agent is synthesized by taking sulfonated dopamine, mesoporous silica, a hydroximic acid compound, glutaraldehyde and the like as raw materials. The mesoporous silica is used as a high-performance carrier, and a 2-5nm mesoporous structure of the mesoporous silica provides abundant active sites and mass transfer channels; based on the carrier, a sulfonic acid group is introduced into dopamine molecules through sulfonation modification, the material is endowed with excellent ion exchange performance, and a stable complex is formed by grafting a functional monomer containing a hydroximido group and utilizing the bidentate chelation of the hydroximido group and heavy metal ions; finally, glutaraldehyde is added to serve as a cross-linking agent, a three-dimensional network structure is constructed through cross-linking, the structure can fix sulfonic acid groups and hydroximido groups, metal ion complexing sites can be further increased, the complexing capacity is enhanced, and finally synchronous and efficient extraction of the acid and the heavy metal ions in the raffinate acid is achieved.

This invention discloses a recyclable natural functional environmentally friendly pigment, comprising the following core components: high-purity marshmallow extract and natural citric acid; wherein, the high-purity marshmallow extract serves as a natural colorant, and the natural citric acid is used to regulate the pH threshold and color change rate of the color-changing reaction; through the synergistic effect of the high-purity marshmallow extract and natural citric acid, this recyclable natural functional environmentally friendly pigment exhibits excellent reversible color-changing performance. The pigment can undergo rapid and reversible color changes under ultraviolet light, temperature, or environmental stimuli, with a short color-changing response time and over 500 reversible color-changing cycles, far exceeding that of similar natural pigments; it also possesses outstanding sun protection function. After applying the pigment to glass, ceramic, or plastic substrates, the transmittance of the substrate in the 200–400 nm ultraviolet band can be reduced to less than 30% of the original substrate, and in some embodiments even less than 15%, significantly reducing the harm of ultraviolet rays to people and indoor items.

This invention discloses a sprayable, high-adhesion, room-temperature curing liquid silicone rubber, its preparation method, and its applications. The rubber comprises component A, containing a base silicone rubber and a catalyst, and component B, containing a base silicone rubber and a crosslinking agent, wherein the mass ratio of component A to component B is 1:1. Compared with existing technologies, the product of this invention has extremely low viscosity, can be sprayed, and cures rapidly at room temperature in the presence of solder, flux, etc., allowing workpieces to be handled 30 minutes after application.

The invention discloses an amino-modified graphene oxide adsorption material for efficiently treating hexavalent chromium and a preparation method thereof, and relates to the technical field of chromium adsorption materials, the method comprises the following steps: adding 4-amino-3-nitrogen-5-sulfydryl-1, 2, 4-triazole and terephthalaldehyde into dimethyl sulfoxide, and stirring to obtain an amino-modified graphene oxide adsorption material; adding a 3-aminopropyltriethoxysilane ethanol solution, stirring for reaction, cooling, filtering, washing and drying to obtain ATA; the preparation method comprises the following steps: dissolving ATA in dimethyl sulfoxide to obtain an ATA solution; the preparation method comprises the following steps: dispersing graphene oxide in water, adding an ATA solution, carrying out ultrasonic treatment, stirring overnight, filtering, washing, and carrying out vacuum freeze drying to obtain the amino-modified graphene oxide adsorption material for efficiently treating hexavalent chromium. The invention further discloses an amino-modified graphene oxide adsorption material for efficiently treating hexavalent chromium and application of the amino-modified graphene oxide adsorption material. The material has excellent hexavalent chromium adsorption performance, and is good in chemical stability and cycle performance and high in application value.

The application discloses a kind of flame-retardant water-resistant polyether type polyurethane elastomer and preparation method thereof, and relates to the technical field of polyurethane elastomer.The application first prepares boroxin intermediate BOX, then reacts with dimethyl methylphosphonate to obtain reactive phosphorus-containing boroxin flame retardant DMPB, which is introduced into polyurethane elastomer as halogen-free flame retardant.The obtained material has significantly improved limiting oxygen index, reaches UL-94 V-0 level, and has outstanding smoke suppression and toxicity reduction effect;continuous dense carbon layer is formed during combustion, and the mechanical and adhesive properties are excellent, halogen-free, environmentally friendly, water-resistant and stable, suitable for new energy vehicles and electronic components potting and other fields with high requirements for flame retardance and water resistance.

The invention belongs to the field of functional finishing of textiles, and particularly relates to a phosphorus-nitrogen-boron synergistic smoke suppression flame retardant and a preparation method thereof. The preparation method of the flame retardant comprises the following steps: firstly, adding cyanuric chloride, phosphoric acid and a solvent into a reaction device together, heating and stirring, adjusting the pH value by using ammonia water until the reaction is complete, and then carrying out reduced pressure distillation, purification and drying to obtain an intermediate product 1; the method comprises the following steps: adding boric acid, mannitol and a solvent into a reaction flask, heating and stirring, and after reaction, distilling and drying to obtain an intermediate product 2; and adding the intermediates 1 and 2 into a reaction flask containing a solvent, heating and stirring, adjusting the pH value by using ammonia water, and after the reaction is completed, distilling, purifying and drying to obtain the target flame retardant. The flame retardant contains three flame-retardant elements of phosphorus, nitrogen and boron which can play a synergistic flame-retardant role, so that the synthesized target flame retardant has an excellent flame-retardant effect.

The application discloses an air purification material for removing alkaline pollutants in air and a preparation method and application thereof, and comprises the following steps: (1) active ingredients and a binder are added with water to form an aqueous solution, and then the aqueous solution is uniformly mixed with a porous carrier and a biomass-based pore-forming agent, granulated, dried, and active particles are prepared; (2) the active particles are treated by high-temperature and oxygen-deficient calcination, the biomass-based pore-forming agent is carbonized, and finally water spraying and humidification are carried out, the moisture is balanced after humidification, and the air purification material is prepared. By introducing the biomass-based pore-forming agent, the large pore channel is constructed through the oxygen-deficient calcination process, the porous structure of the material is reconstructed, the purification efficiency and the treatment capacity are simultaneously improved, the ammonia treatment capacity exceeds 10% of the mass of the material, and can reach more than 3 times of the commercial phosphoric acid modified activated carbon air purification material; and the air purification material prepared by the application has high safety, can tolerate direct irradiation of a butane spray lamp for 30 seconds, and the material has no open flame, no smoldering, and no smoke release.

The application discloses an anti-stone degradable medical magnesium alloy and a preparation method thereof, relates to the technical field of biomedical materials, and aims to solve the technical problems that the prior art cannot simultaneously realize degradable control, interface stability and active anti-stone. The application comprises the following steps: S1. Rheocasting preparation of a magnesium alloy base body: magnesium alloy raw materials are melted under a protective atmosphere, overheated to 50-80 DEG C above the liquidus, poured onto a cooling plate with an inclination angle ranging from 30 to 60 DEG to form a semi-solid slurry, pressed into a mold at a pressure of 80-150 MPa and a speed of 0.2-0.5 m / s, and the mold is opened after pressure and heat preservation for 5-10 min, so that the magnesium alloy base body is obtained. The application has excellent anti-stone performance. On a physical level, the composition gradient transition structure uniformly releases the corrosion products of the magnesium alloy in the form of fine particles, and avoids the accumulation of large products to form stone cores.

The present application relates to the technical field of laminated glass interlayer film, and particularly relates to a kind of interlayer synergistic anti-aging PVB composite interlayer film and its preparation method and application.The present application is based on the technical route of interlayer synergistic antioxidant system, adopts the multilayer structure of "core sound insulation layer+double surface layer", and constructs interlayer synergistic antioxidant system by precisely distributing different types of antioxidants, realizes interlayer function synergy, improves the compatibility of antioxidant and heat shielding material, while ensuring sound insulation and thermal insulation performance, significantly improves the anti-aging stability of interlayer synergistic anti-aging PVB composite interlayer film, solves the technical problems that the existing PVB interlayer film has single antioxidant adding mode or unreasonable distribution, poor compatibility with heat shielding material, leading to sound insulation performance attenuation, serious yellowing and heat insulation efficiency decline during long-term use, and has wide application prospect.

The invention discloses a high-strength water-resistant magnesium oxychloride cement composite material as well as a preparation method and application thereof. The high-strength water-resistant magnesium oxychloride cement composite material is prepared from the following raw materials in parts by weight: 800 to 1200 parts of light calcined magnesia, 600 to 900 parts of 22.5 wt% magnesium chloride aqueous solution, 0.5 to 10 parts of polyethyleneimine and 0.5 to 10 parts of tartaric acid. The preparation method of the high-strength water-resistant magnesium oxychloride cement composite material is characterized by comprising the following steps: weighing the raw material components according to the weight ratio, dissolving the polyethyleneimine and the tartaric acid in a magnesium chloride aqueous solution, then mixing with the light calcined magnesia, and uniformly stirring to obtain the magnesium oxychloride cement composite material. The high-strength water-resistant magnesium oxychloride cement composite material is applied to constructional engineering. The polyethyleneimine and the tartaric acid are introduced as synergistic modifiers, so that the strength and the water resistance of the composite material are remarkably improved.

The invention discloses flame-retardant gel based on hydroxyethyl cellulose and sodium alginate as well as a preparation method and application of the flame-retardant gel, and belongs to the technical field of fire prevention and extinguishing materials for coal mines. The preparation method of the flame-retardant gel comprises the following steps: adding hydroxyethyl cellulose, acrylic acid, acrylamide and an initiator into an alkaline solution at 0-5 DEG C, and carrying out a polymerization reaction to obtain hydroxyethyl cellulose network gel; adding a solution containing Al < 3 + > into the sodium alginate solution, and cross-linking to obtain sodium alginate network gel; the preparation method comprises the following steps: mixing hydroxyethyl cellulose network gel, sodium alginate network gel and sodium bentonite, carrying out heat preservation at 48-52 DEG C to form the mixture, and soaking the formed mixture in a solution containing Al < 3 + > to obtain the flame-retardant gel based on hydroxyethyl cellulose and sodium alginate. By constructing a hydroxyethyl cellulose-sodium alginate double-network structure and combining the synergistic effect of the sodium bentonite, the synergistic improvement of the plugging performance, the water retention performance and the flame retardant performance of the composite gel is realized.