108 results about "Adhesive system" patented technology

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.

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.

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.

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.

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.

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.

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.

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.

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

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

The invention provides a polyvinyl acetal adhesive and a preparation method and application thereof, and belongs to the technical field of high polymer materials, the polyvinyl acetal adhesive is prepared from an aldehyde compound and a polyvinyl alcohol aqueous solution through an aldolization reaction, and the aldehyde compound comprises dialdehyde cellulose and optionally further comprises formaldehyde. According to the invention, dialdehyde cellulose derived from natural cellulose is used as a green cross-linking agent, an environment-friendly adhesive system based on biomass is established, and formaldehyde harm is reduced or even eliminated. Performance test results show that the comprehensive performance of the adhesive is greatly improved while the purpose of removing formaldehyde is achieved.

The utility model discloses a non-adhesive bonding panoramic door and window sash structure, which relates to the technical field of panoramic doors and windows, and comprises an outer window frame and an inner window frame which are fixedly arranged at a track, heat insulation pads are fixedly arranged at the upper part and the lower part between the outer window frame and the inner window frame, and a support block is inserted between the two groups of heat insulation pads; supporting aluminum materials are arranged on the side, close to the indoor space, of the outer window frame and the side, close to the outdoor space, of the inner window frame, the lower portions of the supporting aluminum materials are fixedly sleeved with sealing rubber strips, a glass sash is fixedly installed between the two sets of supporting aluminum materials, and mucilage glue is fixedly bonded between the supporting aluminum materials and the glass sash. According to the structure, a high-performance acrylic acid adhesive system is used for basic pre-bonding of the glass and the aluminum base material, the curing time problem of a double-component structural adhesive is solved, the time is saved from half a day to 30 minutes, and high efficiency is achieved.

The invention belongs to the technical field of lithium battery materials, and provides a reticulated lithium ion penetrating adhesive tape for a lithium battery termination diaphragm and a preparation method.The reticulated lithium ion penetrating adhesive tape for the lithium battery termination diaphragm comprises a base material and a reticulated adhesive layer, the base material is a diaphragm or non-woven fabric or cotton paper and provides a mechanical support and adhesion foundation, and the reticulated adhesive layer is a non-woven fabric or cotton paper. Diaphragm micropores assist in lithium ion transmission, and non-woven fabric / cotton paper enhances the binding force with the diaphragm; the adhesive layer is an acrylate pressure-sensitive adhesive system, a lithium ion transmission channel is formed through reticulate pattern coating, and meanwhile, stable connection between the base material and the diaphragm is ensured; the preparation method comprises the steps of base material pretreatment, glue solution preparation, reticulate pattern coating, curing and drying, and slitting and packaging. The problems that a traditional adhesive tape hinders lithium ion transmission, is poor in compatibility and is difficult to produce in quantity are solved, the charging and discharging efficiency and safety of the battery are improved, and the adhesive tape is suitable for industrial production.

The invention discloses an adhesive for fixing a battery solder strip. The adhesive is prepared from the following raw materials: a polyurethane (methyl) acrylate oligomer, a (methyl) acrylate monomer, a silane coupling agent, a filler, a photoinitiator, an antioxidant and an ultraviolet absorber. The adhesive system disclosed by the invention is UV adhesive, and can be quickly cured within 3 seconds, so that the production efficiency of the battery piece assembly is greatly improved. The glue is colorless and transparent after being cured, is high in light transmittance, and is prevented from shielding light of a battery piece. According to the invention, the production cost of the HIT battery assembly is reduced, the main-grid-free battery piece is promoted to enter a photovoltaic assembly mass production sequence, and the technical development of the photovoltaic battery industry is promoted.

The application discloses a PE adhesive and a gluing process, and belongs to the technical field of adhesives. The PE adhesive comprises chitosan, tannic acid and phenylboronic acid grafted polyethylene, and the mass ratio of the chitosan, the tannic acid and the phenylboronic acid grafted polyethylene is 10:3-4:10-12. The chitosan is added into an acetic acid aqueous solution, stirred and dispersed at 50-65 DEG C to obtain a chitosan solution, tannic acid is added and continuously stirred to obtain a mixed chitosan-tannic acid blend, and the phenylboronic acid grafted polyethylene is added, uniformly mixed, cast into a film, dried, and the PE adhesive is obtained. The application realizes the comprehensive advantages of convenient storage and transportation, process matching, interface strengthening, tough adhesive layer, green environmental protection and controllable cost through the synergistic combination of the phenylboronic acid grafted polyethylene, the chitosan and the tannic acid and the process of dry film preforming, water wetting in-situ activation and hot pressing rapid curing. After hot pressing and curing, the adhesive system can form a firm adhesive layer resistant to boiling water.

The invention provides an anti-oxidation polymerization-inhibition high-temperature-resistant UV curing adhesive and a preparation method thereof. The anti-oxidation polymerization-inhibition high-temperature-resistant UV curing adhesive contains polyfunctional group mercaptan, tertiary amine and fumed silica. The anti-oxidation polymerization-inhibition high-temperature-resistant UV curing adhesive is prepared from the following raw materials: 40 to 60 parts of acrylate, 20 to 40 parts of acrylate monomer, 10 to 30 parts of polyfunctional group mercaptan, 1 to 5 parts of photoinitiator, 1 to 5 parts of tertiary amine, 1 to 10 parts of fumed silica and 1 to 3 parts of additive. On the basis of a'thiol-ene 'click reaction of thiol and acrylate, the oxygen inhibition effect of the curing adhesive is improved, acrylic acid chain type free radical polymerization is carried out, molecular chains are closely crosslinked, the structural strength and mechanical property of the curing adhesive are improved, and the curing adhesive is more resistant to high temperature. In the curing adhesive system, tertiary amine has an inhibition effect on oxygen inhibition, and fumed silica is used as a filler to enhance the mechanical strength and further improve the mechanical properties at high temperature. The anti-oxidation polymerization-inhibition high-temperature-resistant UV curing adhesive disclosed by the invention has the characteristics of rapid curing, good surface dryness, excellent mechanical properties, high temperature resistance and the like.

A fiberglass filter element includes: 6 to 12 wt % of zinc oxide-based composite photocatalytic nanoparticles; 3 to 9 wt % of an adhesive system; and 79 to 91 wt % of a superfine fiberglass cotton. The zinc oxide-based composite photocatalytic nanoparticles includes: a rod-like or flower-like zinc oxide photocatalytic nanoparticle (A); a photocatalytic nanoparticle (B), which is one or more selected from graphene, graphene oxide, reduced graphene oxide and graphene quantum dots; a photocatalytic nanoparticle (C), which is one or more selected from a silver nanoparticle and a silver nanowire; and a photocatalytic nanoparticle (D), which is one or more selected from titanium oxide, tin oxide and tungsten oxide.

The invention relates to the technical field of rubber, in particular to a long-acting anti-adhesion rubber composite material. According to the invention, ethylene propylene diene monomer is adopted as a surface covering rubber system, and the prepared composite rubber material can achieve a long-acting anti-adhesion effect; the technical problem that in the prior art, a rubber conveying belt is poor in anti-adhesion durability is solved. Further, the ethylene propylene diene monomer and the natural rubber are blended as a rubber system, and the content of unsaturated double bonds on the surface is reduced after the natural rubber and the ethylene propylene diene monomer are blended, so that the surface polarity is reduced; maleic anhydride grafted ethylene propylene rubber and / or epoxidized natural rubber are / is added into an ethylene propylene diene monomer and natural rubber blending system to serve as a rubber system, the compatibility of natural rubber and ethylene propylene diene monomer can be improved, the bonding strength of the prepared composite rubber material and bonding glue can be enhanced, and the layering phenomenon is improved; and the problem that the ethylene propylene diene monomer is layered with the laminating adhesive when serving as the surface covering adhesive of the conveying belt is further solved.

This invention relates to the field of functional engineered wood products, specifically to an engineered wood product with ultra-long room-temperature phosphorescence characteristics. The engineered wood product includes bonded units and an adhesive layer located between adjacent bonded units. The adhesive layer is formed by an adhesive that, upon curing, can generate room-temperature phosphorescence. Under external light excitation, the adhesive layer can generate ultra-long room-temperature phosphorescence emission, and the emission signal includes at least one of the following: emission color, emission intensity, emission spectrum, delayed emission image, and / or phosphorescence lifetime. The bonded units are selected from at least one of the following: decorative paper, thin wood veneer, engineered wood veneer, wood veneer, wood / bamboo strips, wood / bamboo shavings, wood / bamboo fiber, straw, and biomass fragments. By adjusting the adhesive system, interface structure, and hot-pressing process parameters, the resulting engineered wood product can exhibit different room-temperature phosphorescence characteristics. This invention endows the board with stable room-temperature phosphorescence function without changing the basic manufacturing process of existing engineered wood products, possessing good process compatibility and application prospects. The room-temperature phosphorescence signal can construct material-level optical coding information, realizing the identification and anti-counterfeiting traceability of the engineered wood product.