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150 results about "Adhesive system" patented technology

Efficient and energy-saving building thermal insulation material and preparation method thereof

PendingCN121573928ACeramicwareCelluloseFiber
The invention relates to the technical field of building materials, and particularly discloses an efficient and energy-saving building thermal insulation material and a preparation method. The material is prepared from modified aerogel, composite mineral fibers, phase change energy storage microcapsules, nano silicon dioxide, waterborne epoxy resin, a polyamide curing agent, expanded perlite, hollow glass beads, hydroxypropyl methyl cellulose, amino modified polyurethane microspheres and nano boron nitride, and the functions of all the components are complemented to form a synergistic system. The preparation method sequentially comprises the following steps: pretreatment of the composite mineral fibers, activation of the amino modified polyurethane microspheres, synergistic dispersion of multiple components, preparation of a bonding system, gradient mixing of materials and molding post-treatment. The material can be widely applied to heat preservation and insulation scenes such as building outer walls and roofs, and has the core advantages of being excellent in heat preservation and insulation, stable in mechanical strength and reliable in long-acting performance; the preparation method disclosed by the invention is refined in process, controllable in parameters, high in repeatability, capable of ensuring uniform product performance and beneficial to industrial large-scale production.
Owner:JINAN RAILWAY TRANSPORT GRP CO LTD +1

Starch adhesive for artificial board and preparation method of starch adhesive

The invention relates to the technical field of adhesives, in particular to a starch adhesive for artificial boards and a preparation method of the starch adhesive, and the starch adhesive comprises the following components in parts by weight: 100 parts of modified konjac starch, 15-25 parts of polyvinyl alcohol, 8-12 parts of polyacrylate, 0.1-0.3 part of a preservative, 3-6 parts of epoxy chloropropane, 0.5-1.0 part of a viscosity stabilizer, 2-4 parts of a modified rare earth compound and 180-220 parts of water. According to the invention, a composite adhesive system of'modified starch matrix + chemical cross-linked network + rare earth coordination interface 'is constructed, so that the water resistance and the bonding strength can be obviously improved; meanwhile, the formaldehyde emission is zero, the problem of formaldehyde pollution of urea-formaldehyde resin, phenolic resin and other traditional adhesives is avoided, and an adhesive solution with high performance and environment-friendly characteristics is provided for the artificial board industry.
Owner:DONGYING SHENGJI ENVIRONMENTAL PROTECTION ENG CO LTD

High-stability low-exothermic structural adhesive system material, preparation method therefor and use thereof

The present invention relates to the technical field of structural adhesives, and provides a high-stability low-exothermic structural adhesive system material, a preparation method therefor and a use thereof. The mass ratio of a resin component to a curing agent component in the structural adhesive system material is 10:(4-5). The resin component comprises 60-80 parts of bisphenol-A epoxy resin, 2-15 parts of bisphenol-F epoxy resin, 10-20 parts of an inorganic reinforcing filler, and 3-8 parts of a thickening thixotropic agent. The curing agent component comprises 56-115 parts of an amine curing agent, 5-20 parts of an inorganic reinforcing filler, 5-9 parts of a thickening thixotropic agent, and 4-60 parts of a modified amine-based rheology additive. The modified amine-based rheology additive is obtained by means of a pre-reaction, at a temperature of 25-150ºC, between an amine substance and a substance capable of undergoing an addition reaction with the amine substance. The present invention solves the problems of how to improve the stability of the structural adhesive and ensure smooth and uniform heat release during a curing exothermic process while meeting mechanical performance requirements.
Owner:TECHSTORM MATERIAL TECH SHANGHAI CO LTD

Cationic UV-LED and moisture dual-curing three-proofing adhesive and preparation method thereof

According to the cationic UV-LED and moisture dual-curing three-proofing adhesive provided by the invention, on the basis of original UV-LED curing, moisture curing is introduced as a synergistic curing mechanism, a UV-LED moisture dual-curing three-proofing adhesive system is jointly formed by combining modified dual-curing resin, an epoxy active diluent, a cationic photoinitiator, an auxiliary agent and the like, an oxygen inhibition effect does not exist, and the moisture dual-curing three-proofing adhesive has the advantages that the moisture dual-curing three-proofing adhesive has a good curing effect; under the adhesive film thickness of 50-200 microns, the cured surface is dry and comfortable and does not adhere to dust or other impurities, the defect that the surface of a traditional mercury lamp curing type UV three-proofing adhesive adheres to hands when an LED lamp is cured is overcome, the curing process is low in energy consumption, electricity is saved, the three-proofing adhesive can be used instantly after being opened, damage to heat-sensitive devices is effectively avoided, no ozone is generated in the whole process, and the three-proofing adhesive is environmentally friendly and safe.
Owner:CROWN NEW MATERIALS TECHNOLOGY CO LTD

Ultraviolet curing organic silicon conductive adhesive and preparation method thereof

The invention discloses an ultraviolet curing organic silicon conductive adhesive and a preparation method thereof, and relates to the technical field of conductive materials, the ultraviolet curing organic silicon conductive adhesive comprises the specific components of organic silicon matrix resin, a photosensitive curing agent, a conductive filler, a reactive diluent, a coupling agent and a thixotropic agent; the photosensitizer further comprises carborane cluster particles, a phosphazene silane nanocage, a sulfur-doped tungstate nanosheet, a potassium fluoride modified hollow graphene ball and an additive of a germanoxane photosensitizer. The material is prepared based on the materials. According to the preparation method, multiple functional additives are introduced into a traditional ultraviolet curing organic silicon conductive adhesive system, a multi-dimensional conductive path is constructed on the molecular and nanoscale, and the photocuring initiation efficiency and the interface stability are optimized, so that the prepared conductive adhesive not only realizes low resistivity, but also can be rapidly and deeply cured in an adhesive layer with relatively high thickness; and meanwhile, excellent damp-heat resistance and corrosion resistance are achieved.
Owner:YANTAI DARBOND TECH +1

Binder system for injection molding of beryllium-titanium alloy powder and application

The invention provides a binder system for beryllium-titanium alloy powder injection molding and application, and relates to the technical field of metal powder injection molding. The adhesive system consists of the following components in percentage by weight: 76 to 84 percent of polyformaldehyde, 7 to 9 percent of high-density polyethylene, 5 to 7 percent of ethylene-vinyl acetate copolymer, 3 to 5 percent of paraffin, 0.1 to 0.5 percent of stearic acid, 0.1 to 1.5 percent of polyethylene glycol and 0.1 to 1 percent of BASF antioxidant. The feed preparation method based on the system comprises the steps of powder pretreatment, binder preparation, banburying mixing and cooling granulation, and uniform coating and dispersion of beryllium-titanium powder can be achieved. According to the system, the problems that in beryllium-titanium alloy injection molding, powder is prone to oxidation, poor in fluidity and low in size precision are solved, the viscosity of the prepared feed at 180 DEG C is 88-101 Pa.S, and the oxygen content is smaller than or equal to 0.24 wt%; the relative density of a finished product is larger than or equal to 96.5%, the size precision is + / -1% / in-+ / -2% / in, and the method is suitable for industrial production of beryllium-titanium alloy complex parts in the fields of spaceflight and nuclear energy.
Owner:CNMC NINGXIA ORIENT GRP

Single-component isocyanate Pickering emulsion adhesive with long pot life as well as preparation method and use method of single-component isocyanate Pickering emulsion adhesive

The invention discloses a single-component isocyanate Pickering emulsion adhesive with long pot life as well as a preparation method and a use method thereof, and belongs to the technical field of high polymer materials / adhesives. The invention aims to solve the problems of low artificial board production efficiency, unstable board bonding performance and difficulty in direct application of a lignin body to a reverse isocyanate emulsion adhesive system due to short adhesive preparation pot life and dependence on environmental humidity in curing of an existing isocyanate adhesive. The single-component isocyanate Pickering emulsion adhesive with the long pot life is prepared from isocyanate, water, lignin sphere nanoparticles and a surfactant. The invention further discloses a preparation method of the single-component isocyanate Pickering emulsion adhesive with the long pot life. The preparation method comprises the following steps: 1, mixing; and 2, emulsifying. The application method comprises the following steps: coating the surface of a base material with the single-component isocyanate Pickering emulsion adhesive, and then assembling and hot-pressing. The invention is used for the single-component isocyanate Pickering emulsion adhesive with the long pot life as well as the preparation and the use of the single-component isocyanate Pickering emulsion adhesive.
Owner:NORTHEAST FORESTRY UNIV

Preparation method of tackifying flame-retardant organic silicon pressure-sensitive adhesive

The invention discloses a preparation method of a tackifying flame-retardant organic silicon pressure-sensitive adhesive, which comprises the following steps: carrying out hydrosilylation reaction between a vinyl trimethoxy silane coupling agent and methyl hydrogen-containing silicon resin to synthesize an organic silicon tackifier MQ-ETMS, and carrying out wet modification on aluminum diethylphosphinate by using an olefinic bond-containing silane coupling agent to prepare a flame retardant K-ADP. After the prepared organic silicon tackifier and the flame retardant are introduced into an organic silicon pressure-sensitive adhesive system, the high-performance organic silicon pressure-sensitive adhesive tape is prepared through blending, coating, solvent volatilization and heating crosslinking. The synthesized tackifier is rich in methoxyl functional groups, the functional groups enhance the interaction between the organic silicon pressure-sensitive adhesive and the surface of an adhered material, and meanwhile, the olefinic bond-containing silane coupling agent is utilized to perform surface modification on the aluminum diethylphosphinate, so that the problem of dispersion of a traditional flame retardant added into the organic silicon pressure-sensitive adhesive is solved; therefore, the adhesion performance and the flame retardant property of the organic silicon pressure-sensitive adhesive are both improved.
Owner:HUIZHOU ZHENYUANXIN ELECTRONIC MATERIAL CO LTD

Bio-based polythiol curing agent as well as preparation method and application thereof

The invention relates to the field of high polymer materials, and particularly provides a bio-based polythiol curing agent and a preparation method and application thereof.The bio-based polythiol curing agent is obtained through reaction of polyether polyol, epoxy chloropropane and a sulfhydrylation reagent, the epoxy chloropropane is prepared from bio-based raw materials, and the sulfhydrylation reagent is prepared from polyether polyol. The invention relates to epoxy chloropropane, in particular to epoxy chloropropane prepared by a glycerin method, and the mass content of 2, 3-epoxypropane methyl ether in the epoxy chloropropane is less than 0.4%. By controlling the content of 2, 3-epoxypropane methyl ether in the bio-based epoxy chloropropane, the humidity and heat resistance of a polythiol adhesive system applied to the downstream can be improved. The epoxy adhesive prepared from the epoxy resin has the advantages of higher humidity and heat resistance, higher adhesive property, higher glass transition temperature and longer service life, can reduce the maintenance cost, and is widely applied to the fields of electronic and electrical appliances, automobile manufacturing, aerospace, architectural decoration and the like.
Owner:EFIRM NEW MATERIAL CO LTD

Civil aviation radial tire corrugated protective layer glue and preparation method thereof

The invention discloses a civil aviation radial tire corrugated protective layer rubber and a preparation method thereof, and the rubber adopts a technical method that 1 # smoked sheet rubber is used as a main body material, N330 carbon black is used as a reinforcing system, N46 engine oil is used as a plasticizer, insoluble sulfur, an accelerant DZ and the like are used as vulcanizing agents, and an adhesive RS, C9 resin and tackifying resin HT-M are used as an adhesive system. The rubber material with high adhesion, impact resistance, tear resistance, puncture resistance, low heat generation and good fatigue resistance is prepared through a certain mixing process, and the rubber material serving as the corrugated protective layer rubber material of the civil aviation radial tire has good adhesion performance of a framework material (aramid fiber rope), higher physical performance, lower heat generation performance and good anti-fatigue performance. The damage resistance of foreign object puncture resistance and mechanical damage resistance of the civil aviation radial tire is improved, so that the durability of the tire is improved.
Owner:T RUBBER

Preparation method of silicon carbide granulation powder

ActiveCN121517220AAdhesive cementPorosity
The invention relates to the technical field of silicon carbide ceramic materials, and particularly discloses a preparation method of high-performance silicon carbide granulation powder. The method comprises the following steps: S1, preparing a composite adhesive system; s2, pre-dispersing the slurry; s3, ball milling dispersion; s4, mixing and size mixing; s5, spray drying; and S6, low-temperature activation. The adhesive is a ceric ammonium nitrate-ascorbic acid-dicyandiamide composite catalytic oxidation system, in the low-temperature activation stage, high-activity Ce < 3 + > generated by reaction of ceric ammonium nitrate and ascorbic acid efficiently catalyzes and cuts off polyvinyl alcohol molecular chains and promotes thorough decomposition of the polyvinyl alcohol molecular chains, dicyandiamide is decomposed to release gas to form a micro-channel, and a local atmosphere is created; the carbon residual rate is remarkably reduced to 0.06% or below, the apparent density is larger than or equal to 0.85 g / cm < 3 >, the porosity of a sintered body is smaller than or equal to 0.7%, and the technical problems of residual carbon control and uniform forming are solved.
Owner:TONGHUA HONGXIN ABRASIVE

Conductive compositions, electrodebonding adhesive systems, and related methods

A primer composition includes a solvent, a conductive filler dispersed in the solvent, and a polymer in at least one state dissolved or dispersed in the solvent. The polymer includes at least one of polyurethane, polyacrylate, polyamide, or rubber. An adhesive system comprises an electrically conductive composition and an electrodebonding adhesive comprising an ionic liquid. The use of the primer composition as a primer on a non-conductive substrate in combination with an electrodebonding adhesive is also described. A method of making a bonded article and an article bonded with the adhesive system disclosed herein and / or made by the method disclosed herein are also described.
Owner:3M INNOVATIVE PROPERTIES CO

Low-hole-blocking high-strength honeycomb activated carbon and preparation method thereof

The invention relates to the technical field of activated carbon materials, and discloses low-hole-blocking high-strength honeycomb activated carbon and a preparation method thereof. The honeycomb activated carbon comprises activated carbon particle skeletons and a bonding network filled among the activated carbon particle skeletons, and the bonding network is formed by heat treatment and curing of a bi-component crosslinking adhesive system; the bi-component crosslinking adhesive system comprises a copolymer emulsion adhesive A and a powder adhesive B, active functional groups in a copolymer emulsion component and organic acid in a powder component are subjected to esterification crosslinking reaction under the thermal action, so that a three-dimensional crosslinking network structure is formed among activated carbon particles, and bridging connection is constructed; the honeycomb activated carbon has relatively high iodine adsorption value and axial compressive strength; by constructing a composite structure with the synergistic effect of a particle skeleton and a cross-linked bonding network, the overall mechanical strength of the honeycomb activated carbon is improved while the micropore structure of the activated carbon is maintained, the pore channel blocking phenomenon is reduced, and the honeycomb activated carbon is suitable for the fields of industrial waste gas treatment, volatile organic compound adsorption and the like.
Owner:FOSHAN SANSHUI TAIXIN SYNTHETIC MATERIALS CO LTD

A modified silane adhesive and preparation method thereof

The present invention relates to a modified silane adhesive and a preparation method thereof. The raw material composition of the modified silane adhesive includes, by weight, 45-75 parts of silane-modified polyether, 10-20 parts of silane derivatives, 0.3-2 parts of water scavengers, 1-3 parts of catalysts, 0.5-3 parts of coupling agents, 10-15 parts of plasticizers, and 5-15 parts of modified graphene oxide. The present invention uses silane derivatives for modified silane adhesive systems, wherein the silane derivatives provide excellent flame retardant effects for the adhesives on the one hand; on the other hand, by enhancing the intermolecular forces and cohesive strength of the adhesives, the mechanical properties of the modified adhesives are improved. Modified graphene oxide is also introduced into the modified silane adhesive system of the present invention as a functional component to impart excellent waterproof and antifouling properties to the adhesives.
Owner:HUNAN SHENGSHI ADHESIVE TECH CO LTD

Adhesive systems for grasping surfaces

Various examples of switchable adhesive elements are described. An example switchable adhesive element includes a compliant stalk extending from a support end to a contact end. The compliant stalk includes a tapered outer surface and a curved contact surface at the contact end. The switchable adhesive element further includes a membrane coupled to the curved contact surface and capping the contact end of the compliant stalk. The curved contact surface can be curved with a radius of curvature between 5 mm and 100 mm in various examples. In other aspects, the compliant stalk includes a fluid channel that extends through the compliant stalk from the support end to the contact end, and the membrane is pneumatically or hydraulically actuated via the fluid channel through the compliant stalk.
Owner:VIRGINIA TECH INTELLECTUAL PROPERTIES INC

POE-free adhesion promoters for sustainable timber construction

The invention relates to adhesive systems for lignocellulosic composite materials comprising a) a primer composition, b) an NCO-containing adhesive composition.
Owner:EVONIK OPERATIONS GMBH

Preparation method of HOF-TGU307 reinforced acrylic acid adhesive

The invention relates to an HHOF-TGU307 enhanced acrylic acid adhesive as well as a preparation method and application thereof, and belongs to the technical field of macromolecular functional materials. Aiming at the problem that the existing acrylic acid adhesive is difficult to meet the high-performance requirement in the aspects of bonding strength and mechanical property, and particularly the defects of insufficient bonding strength, easy aging, interface failure and the like in the emerging application fields of new energy and the like, HOF-TGU307 (hydrogen bond organic framework) is introduced into an adhesive system; the cohesive force and the adhesion capacity with a base material are obviously improved. The HOF-TGU307 material is a novel crystalline organic porous material with high specific surface area, high crystallinity and adjustable aperture, the HOF-TGU307 material shows unique solution processability and easy regeneration due to reversibility and flexibility of hydrogen bonds, and the HOF-TGU307 material has good biocompatibility and low cytotoxicity due to the metal-free characteristic; the characteristics enable the HOF to become a new platform of functional materials. The adhesive is formed by polymerization of two acrylic monomers in an ethanol solution through ultraviolet initiation, the process is simple and environment-friendly, and the obtained product has good storage and transportation stability. Performance tests show that the bonding strength of the adhesive on a PMMA (polymethyl methacrylate) base material can reach 1.36 MPa, and Fourier infrared spectroscopy and scanning electron microscope analysis verify good compatibility and dispersion state between HOF-TGU307 crystals and a polymer matrix. The adhesive provided by the invention has wide application prospects in the fields of structural bonding, photoelectric materials, automobiles, new energy and the like.
Owner:YANTAI NANSHAN UNIV

Combined type outer wall split brick bonding and anchoring system

The invention belongs to the technical field of building outer wall decoration, and discloses a combined type outer wall split brick sticking and anchoring system which comprises a wall body, a brick body, an anchor nail and an anti-falling assembly. The anti-falling assembly is arranged on the back of the brick body and the front side of the wall body, and double fixation of the brick body and the wall body is achieved. The brick body is connected with the wall through a rivet, second round rods are movably embedded in the inner walls of the two first round rods, according to the anti-disengaging assembly, accurate limiting of the brick body in the horizontal direction is achieved through embedding of the positioning round blocks and the positioning holes, interference fit is formed between the rivet and the wall through elastic expansion of the elastic pieces, reliable longitudinal fastening force is provided, and the anti-disengaging effect is good. According to the face-shaped bonding layer, single-point stress is converted into face-shaped dispersed stress through matching of the mortar bearing plate and the mortar bonding groove, fixation is formed between the brick body and the wall body and between the brick bodies through the synergistic effect of the face-shaped bonding layer, the mortar bearing plate and the mortar bonding groove, and the problems that traditional bonding is aged and falls off, and anchoring nail fixing stress is concentrated are solved.
Owner:THE FOURTH OF CHINA EIGHTH ENG BUREAU

High temperature resistant cutting adhesive tape and preparation method thereof

The present application relates to the technical field of adhesive tape, in particular to the field of IPC B65H35, further to a high-temperature-resistant cutting adhesive tape and a preparation method thereof.From top to bottom, the high-temperature-resistant cutting adhesive tape comprises a protective layer, an adhesive layer and a substrate layer in sequence.The adhesive of the adhesive layer comprises the following raw materials in parts by mass: 70-90 parts of prepolymer, 20-50 parts of active diluent, 3-10 parts of photoinitiator, 1-4 parts of antioxidant and 3-6 parts of silane coupling agent.The present application selects to introduce bisphenol A epoxy acrylate and phenolic epoxy acrylate, and selects isobornyl acrylate and dipropylene glycol diacrylate to be used as the active diluent together, so that the cross-linking degree of the adhesive system is high, the system has a suitable curing shrinkage, the cohesive strength of the system is large, the high-temperature-resistant cutting adhesive tape has good bonding performance while the high-temperature-resistant performance is improved, and the prepared high-temperature-resistant cutting adhesive tape has excellent bonding performance and high-temperature-resistant performance.
Owner:SHANGHAI GOOD SCI TAPE TECH CO LTD

A formaldehyde-free adhesive system and a method for preparing plywood using the same

This invention relates to the field of adhesive technology, and discloses a formaldehyde-free adhesive system and a method for preparing plywood using the same. The formaldehyde-free adhesive system includes component A and component B, which are applied to the surface of a substrate, respectively. Component A is an isocyanate adhesive, and component B includes an acrylic copolymer emulsion with a glass transition temperature (Tg) of 100℃ ≤ Tg ≤ 125℃. Applying components A and B to the substrate surface separately improves the ease of application and the synergistic effect of the two components at the bonding interface. The high-Tg acrylic copolymer emulsion in component B has good adhesion and water resistance, effectively covering and filling defects on the substrate surface, especially burrs and grooves, and synergistically improving bond strength and water resistance with the isocyanate adhesive. Plywood prepared using the adhesive system of this invention has low formaldehyde release, high bond strength, and excellent resistance to immersion peeling.
Owner:WANHUA CHEM GRP CO LTD

Multi-component light-operated reversible composite bonding system

The invention discloses a multi-component light-operated reversible composite bonding system, and belongs to the technical field of bonding materials. The preparation method comprises the following steps: fully mixing light response micromolecules and a polymer under light assistance, stirring, heating to 50-60 DEG C, keeping for a period of time, spreading the mixture, drying, pressing into sheets, cooling, solidifying, and cutting into strips to obtain the reversible composite bonding system with light-controlled high bonding force mode and low bonding force mode. The light-sensitive adhesive is attached to the surface of a base material, illumination is switched into a soft low-bonding-force mode, and the light-sensitive adhesive can adapt to various heterogeneous special-shaped interfaces. And after the bonding is finished, standing and switching to a high-bonding-force mode to form the long-term stable high-strength structural adhesive. The mode can be switched back to the low bonding force mode through illumination again, and at the moment, the bonding agent can be easily washed away only through a common solvent such as ethyl alcohol. According to the invention, based on the light-induced bonding strength change, a non-contact and simple light-operated reversible composite bonding system is realized, and the light-operated reversible composite bonding system can easily adapt to complex dynamic requirements and cope with various industrial and living bonding scenes.
Owner:PEKING UNIV

A structural adhesive for heliostats and its preparation method

This application discloses a structural adhesive for heliostats and its preparation method. The structural adhesive comprises component A and component B. Component A consists of the following raw materials: 10-40 parts epoxy resin, 1-10 parts diluent, 1-5 parts epoxy silane coupling agent, 1-5 parts thixotropic agent, 5-20 parts toughening agent, and 10-40 parts filler. Component B consists of the following raw materials: 10-40 parts curing agent, 1-5 parts amino silane coupling agent, 1-5 parts thixotropic agent, 10-40 parts filler, and 1-10 parts curing accelerator. The epoxy resin includes one or a combination of several of E-44 epoxy resin, E-51 epoxy resin, bisphenol F170 epoxy resin, and polyetheramine modified epoxy resin. The structural adhesive system formed by different epoxy resin blends and polythiol curing agents can adapt to the application environment of heliostats, exhibiting good construction performance at low temperatures, maintaining structural stability at high temperatures, and possessing good bulk strength and adhesion.
Owner:HANGZHOU ZHIJIANG SILICONE CHEM +2

Five-axis sole printing and forming apparatus

The present invention relates to the technical field of plastic molding, and relates to a five-axis sole printing and forming apparatus, comprising a frame, an injection movement system, a workpiece movement system, a plurality of injection tubes and a plurality of adhesive systems, wherein the injection movement system and the workpiece movement system are both mounted on the frame, and all the injection tubes are mounted on the injection movement system which drives the injection tubes to move above the workpiece movement system. Each of the adhesive systems comprises an adhesive feeding device, an adhesive lifting device, an adhesive storage device and an adhesive power device, wherein the adhesive storage devices are slidably mounted on the injection tubes, the adhesive feeding device is rotatably mounted on the adhesive storage device, the adhesive power device is mounted at the bottom of the adhesive feeding device, the adhesive power device drives the adhesive feeding device to swing, the adhesive lifting device is mounted at the bottom of the adhesive feeding device, the adhesive lifting device pushes the adhesive feeding device to rotate so as to expose the injection tube, and the adhesive feeding device slides along the bottom of the injection tube, thereby ensuring smooth multi-color molding.
Owner:QUANZHOU YUHUAN MOULD CO LTD

Flame-retardant surface layer oriented strand board based on interfacial penetration anchoring and method of making the same

A method for preparing flame-retardant surface-layer oriented strand board (OSB) based on interfacial penetration anchoring is provided, comprising: stirring long wood shavings and an acidic adhesive system composed of 1,6-hexanediamine aqueous solution, 2-hydroxyphosphonic acid-acetic acid aqueous solution, and diphenylmethane diisocyanate in a mixer under the condition of hot air flow; discharging the material when the pH value of the shaving surface reaches 4.0-6.0 to obtain pretreated surface-layer large shavings; mixing copolymer CS-H-H, wood fines, and diphenylmethane diisocyanate; discharging the material when the pH value of the wood fines reaches 7.7-8.5 to obtain pretreated core-layer fines; the reaction formula for preparing copolymer CS-H-H is as follows; laying the pretreated material in the order of surface-layer large shavings, core-layer fines, and surface-layer large shavings as the lower surface layer, core layer, and upper surface layer, and performing a hot-pressing process. This solves the problems of low interlayer bonding strength and easy corrosion of metal connectors in previous fine-grain core-layer OSBs.
Owner:INST OF WOOD INDUDTRY CHINESE ACAD OF FORESTRY

Urethane acrylate, polyurethane acrylate adhesive system and preparation method and application thereof

The invention discloses polyurethane acrylate, an adhesive system of the polyurethane acrylate as well as a preparation method and application of the adhesive system. According to the invention, a polyurethane structure is introduced from the skeleton of bisphenol A, and polyurethane acrylate is designed and synthesized. The adhesive system comprises the following components in percentage by weight: 55-70wt% of a polymerizable diluent monomer, 10-20wt% of an initiator, 0.5-5wt% of a crosslinking agent, 0.5-5wt% of a crosslinking agent and 0.5-5wt% of an initiator, the content of the photoinitiator is 1-5 wt%; the content of the polyurethane acrylate is 25 to 40 weight percent; and the co-initiator is 1-2 wt%. By utilizing the toughness of a polyurethane molecular structure and the volume occupation effect of a bisphenol annular rigid structure, the concentration of polymerizable double bonds is reduced, the molecular thermal vibration amplitude before polymerization is reduced, and the intermolecular distance is shortened, so that the toughness of the resin is ensured, the polymerization shrinkage rate is reduced, and the adhesive property of the adhesive is improved. The adhesive prepared by the invention has the characteristics of moderate viscosity, small polymerization shrinkage, large molecular weight, good mechanical properties, and especially excellent toughness.
Owner:CHINA PETROLEUM & CHEMICAL CORP +1

A UV adhesive, a UV adhesive film and its preparation method

This invention relates to the field of polymer optical adhesives, specifically disclosing a UV adhesive, a UV adhesive film, and a method for preparing the same. The UV adhesive provided by this invention comprises 43-47 parts isooctyl acrylate, 10-13 parts butyl acrylate, 2-3 parts hydroxyethyl acrylate, 4-5 parts methyl methacrylate, 1-2 parts acrylic acid, 2-4 parts benzophenone monomers, and 1-7 parts tris(trimethylsiloxy)silyl monomers. The UV adhesive provided by this invention has a simple composition; simply controlling the UV irradiation dose is sufficient to achieve both thickening and thinning of the adhesive. No additional thermosetting agents or photopolymerizing components are required, solving the problem of poor compatibility in existing UV adhesive systems. This not only facilitates uniform coating but also fundamentally solves the problem of adhesive residue.
Owner:HEBEI ZHUHENG TECH CO LTD

Elastomeric article

Elastomeric article (1) with - a rubber matrix (2) as well as - components (3) vulcanized into and / or onto the rubber matrix (2), in particular reinforcing elements, - an adhesive system by which the vulcanized and / or bonded components (3) are connected to the rubber matrix (2), characterized in that the article (1) has an adhesive system which has the following features, namely before vulcanization - components coated with adhesion promoter to be vulcanized in and / or onto the skin (3), - a raw rubber matrix (2) surrounding the components (3) to be vulcanized in and / or onto the adhesive layer (4), - Nanotetrapods (5) embedded in the adhesion promoter layer (4), which protrude from the adhesion promoter layer (4) with at least several arms (6) and engage in the surrounding raw rubber matrix (2), wherein, after vulcanization, the components (3) to be vulcanized in and / or onto are firmly connected to each other both by the chemical bond formed during vulcanization and by the form-fitting interaction of the nanotetrapods (5) with the surface of the components (3) to be vulcanized in and / or onto and the rubber matrix (2), characterized in that the elastic article (1) is an air spring bellows or a vehicle pneumatic tire or a power transmission belt or a conveyor belt or an elastic membrane or an elastic fluid line.
Owner:CONTITECH DEUTSCHLAND GMBH

Modified silane adhesive and preparation method thereof

The invention relates to a modified silane adhesive and a preparation method thereof, the modified silane adhesive comprises the following raw materials by weight: 45-75 parts of silane modified polyether, 10-20 parts of a silane derivative, 0.3-2 parts of a water removal agent, 1-3 parts of a catalyst, 0.5-3 parts of a coupling agent, 10-15 parts of a plasticizer, and 5-15 parts of modified graphene oxide. The silane derivative is used for modifying a silane adhesive system, and on one hand, the silane derivative provides an excellent flame retardant effect for the adhesive; on the other hand, the mechanical property of the modified adhesive is improved by enhancing the intermolecular acting force and cohesion strength of the adhesive. Modified graphene oxide is further introduced into a modified silane adhesive system to serve as a functional component, and the adhesive is endowed with excellent waterproof and antifouling performance.
Owner:HUNAN SHENGSHI ADHESIVE TECH CO LTD

Multifunctional adhesive for rapid sealing of water surface photovoltaic floating body and sealing method of water surface photovoltaic floating body

PendingCN122357054AAdhesive cementPlasticizer
This invention provides a multifunctional adhesive and method for rapid sealing of floating photovoltaic (PV) bodies on water surfaces, comprising the following components and their mass ratios: epoxy resin: 100 parts; polyether: 20–30 parts; curing agent: 50–70 parts; plasticizer: 4–6 parts; filler: 5–10 parts; UV-resistant additive: 0.05–0.1 parts; antioxidant: 1–5 parts. The adhesive system provided by this invention has a faster curing speed and simpler construction process compared to ordinary sealing agents, enabling rapid emergency sealing, convenient construction, and adaptability to on-site conditions. Furthermore, it exhibits excellent adhesion to HDPE blow-molded substrates, is water-resistant and immersion-resistant, provides long-lasting sealing, is weather-resistant and anti-aging in outdoor applications, and has a long service life.
Owner:POWERCHINA HUADONG ENG CORP LTD +1