3693 results about "Adhesive cement" patented technology

The invention relates to a preparation method of a high-durability multifunctional super-hydrophobic coating. According to the method, a mixed solution of an adhesive and hydrophobic modified nanoparticles is subjected to phase separation through non-solvent induction, so that the hydrophobic modified nanoparticles are coated on the outer layers of adhesive particles to form a uniform suspension, and finally, a micro-nano structure dispersed on the surface and inside of a coating can be obtained. After the surface layer is worn, the newly exposed surface still has an excellent micro-nano structure, namely super-hydrophobic performance; on the other hand, the nanotubes (wires) are added into the suspension, so that the mutual connection among the adhesive particles is further enhanced, and finally, the firm super-hydrophobic coating can be obtained. The super-hydrophobic coating provided by the invention has excellent durability, chemical stability, ultraviolet resistance and thermal stability, and functions of photo-thermal, electric heating, antibiosis, easy deicing, high thermal conductivity and the like, is suitable for various base materials, and is easy to realize large-scale preparation.

The invention belongs to the technical field of road construction, and particularly relates to a copper-doped tailing pavement base material as well as a proportion confirmation method and application thereof. The preparation method comprises the following steps: S1, preparing raw materials; s2, a compaction test method is adopted, and the void ratio of the compacted aggregate wrapped with the cement mortar is calculated; s3, according to the volume filling principle, the gravels form a basic framework, the void ratio of the gravels in the compaction state is measured, cement adhesive cement adheres to aggregate, the aggregate is filled in gaps of the framework formed by the gravels, and finally the blending proportion of the copper tailings, the gravels and the aggregate is determined by combining the composition mechanism and volume parameters of the mixture; and S4, calculating the using amount of the steel slag composite cementing material mucilage according to the thickness of the steel slag composite cementing material mucilage wrapping film and the specific surface area of the copper tailings. A skeleton filling theoretical method is adopted, the shrinkage effect of the filler in the skeleton is controlled, the cracking risk is reduced, and meanwhile the high strength is achieved.

The invention relates to a mildew-proof silicone sealant with high curing rate and high adhesive strength, and belongs to the technical field of adhesives. The anti-mildew coating is prepared from alpha, omega-dihydroxy polydimethylsiloxane, dimethyl silicone oil, fumed silica, phenoxy resin coated nano calcium carbonate, a modified hydroxypropyl-gamma-cyclodextrin loaded mildew preventive, dibutyltin dilaurate, methyltrimethoxysilane and a curing accelerator. According to the mildew-proof silicone sealant with the high curing rate and the high adhesive strength, the surface drying time is 9-13 minutes, the 24-hour curing depth is 6.3-7.2 mm, the adhesive strength is 3.0-3.6 MPa, the tensile strength is 5.8-6.4 MPa, the shear strength is 3.0-3.9 MPa, the elongation at break is 410-457%, and the mildew-proof grade is 0 grade in 30 days, 60 days, 180 days and 360 days.

The invention relates to the technical field of stirring tanks, and particularly discloses a chemical stirring tank which comprises a base and a stirring tank fixedly mounted at the top of the base and composed of a lower tank body and an upper tank body, and a driving motor is fixedly mounted at the top of the upper tank body; a stirring preparation defoaming unit, a material pressing type intermittent dispersion discharging unit and a multi-step collision centrifugal defoaming unit are arranged in the stirring tank, through the multi-step collision design, an adhesive continuously collides with a plurality of collision steps from top to bottom under the continuous action of centrifugal force, large and small bubbles in the adhesive can be rapidly broken through continuous collision, and the adhesive can be uniformly dispersed. The continuous collision defoaming effect is further achieved, even small bubbles or bubbles which are not prone to being broken due to the fact that a surfactant is contained can be broken in the continuous collision process, the influence of the size and viscosity of the bubbles in the adhesive and the stability of the bubbles on the defoaming effect is avoided, and the defoaming effect is greatly improved.

The invention relates to the field of adhesives, and particularly discloses an OCA optical adhesive for a folding screen and a preparation method of the OCA optical adhesive. The OCA optical adhesive for the folding screen is prepared from the following raw materials in parts by weight: 60 to 80 parts of urethane acrylate, 15 to 25 parts of organic silicon grafted glycidyl ether, 20 to 30 parts of a diluent, 5 to 10 parts of a photoinitiator and 1 to 2 parts of an antioxidant, the organic silicon grafted glycidyl ether is prepared by reacting vinyl siloxane, pentaerythritol triallyl ether, allyl glycidyl ether and a catalyst. The OCA optical cement for the folding screen prepared by the invention is applied to the folding screen, and can keep relatively good elasticity, bending resistance and bonding strength in the long-term repeated folding use process, and wrinkles and bubbles are not easy to appear.

The invention relates to the technical field of equipment control, in particular to an adhesive tape forming equipment control method and system based on adhesive performance analysis, and the method comprises the steps: establishing a viscosity control model, a drying temperature and time adjustment algorithm and a tension adjustment algorithm; a data model and a control algorithm are incorporated into control logic of the PLC, and dynamic adjustment data of coating speed and pressure are output through a viscosity control model; outputting dynamic adjustment data of the drying temperature and time through a drying temperature and time adjustment algorithm; outputting dynamic adjustment data of the tension of the base material through a tension adjustment algorithm; adjusting each piece of dynamic adjustment data through different weights; and outputting a control value according to the adjustment result. By introducing the viscosity, solid content, rheological property and other characteristics of the adhesive into automatic control, the problem of production fluctuation caused by neglecting material characteristics in a traditional control method is solved, and the precision and consistency of the adhesive tape forming process are remarkably improved through sensor feedback, model control and PLC integration.

The invention relates to a preparation method of a radiation refrigeration coating with super-hydrophobic performance. According to the method, hydrophobic modified nano-particles and nano-particles with high reflectivity and high emissivity are blended in an adhesive solution, an adhesive is separated out to form a micron-sized aggregate through a non-solvent induced phase separation technology, and meanwhile, various nano-particles are uniformly coated on the surface of the aggregate, so that a stable suspension system is prepared. The radiation refrigeration coating has excellent radiation refrigeration performance, excellent super-hydrophobicity and good durability, the preparation process is simple, the radiation refrigeration coating is suitable for large-scale industrial application of outdoor scenes such as building outer walls, and a new technical solution is provided for developing efficient and lasting radiation refrigeration materials.

The invention discloses a preparation method of a nucleotide tackifying polylipoic acid-based underwater adhesive, and belongs to the field of underwater adhesives. The preparation method comprises the following steps: dissolving three monomers of adenylic acid, lipoic acid and methacryloyloxyethyl trimethyl ammonium chloride in a mixed solution of dimethyl sulfoxide and water, and carrying out a polymerization reaction under a heating condition of 50 DEG C to finally prepare the nucleotide tackifying polylipoic acid-based underwater adhesive. The adhesion property of the lipoic acid polymer is remarkably improved by introducing the adenylic acid monomer. The adhesive prepared by the preparation method disclosed by the invention shows excellent adhesion capacity to various materials (metal, plastic, glass and wood) in a high-humidity environment and an underwater environment, and the underwater adhesion strength can reach 130.47 kPa. According to the invention, high-strength bonding of an adhesive material in an underwater environment is realized, the application range of the adhesive is widened, and the adhesive is expected to be applied to the fields of tissue adhesives, underwater robots, wearable equipment and the like.

The invention relates to the field of adhesives, in particular to a structural adhesive epoxy composition and a preparation method thereof. The structural adhesive epoxy composition is prepared from the following raw materials: epoxy resin, a toughening agent, a reinforcing agent, filler, a latent curing agent, a latent accelerant, a chemical foaming agent, a physical foaming agent and the like. Finally, the epoxy composition prepared by the invention can be used as a structural adhesive raw material, has ultrahigh expansion rate, low-temperature rapid curing capacity and structural adhesive property, and also has good mechanical properties and excellent comprehensive application effect, so that the complex requirements of the application field of the prior art on the structural adhesive raw material are met.

The invention relates to the technical field of polyurethane adhesives, in particular to a quick-curing two-component hot-pressing adhesive as well as a preparation method and application thereof. Comprising a component A and a component B. The component A comprises, by weight, 20 to 60 parts of castor oil polyol, 40 to 80 parts of a filling material, 0.001 to 0.01 part of a catalyst and 0.001 to 0.006 part of an auxiliary agent, and the catalyst comprises a triethylene diamine-terminated heat-sensitive catalyst; and the component B comprises an isocyanate curing agent. The filler comprises heavy calcium carbonate and calcium oxide, and the weight ratio of the heavy calcium carbonate to the calcium oxide is (25-40): 1, so that not only can the cost be effectively reduced, but also the tensile-shear strength of the hot-pressing adhesive can be improved; and when the particle size of the filler is adjusted to be 500-2000 meshes, the tensile-shear strength after cementing can be effectively maintained within a relatively low curing time (3-5 minutes), and meanwhile, the storage stability of the sizing material is improved.

The invention relates to the technical field of new materials, and mainly relates to a double-component low-viscosity ultralow-temperature adhesive as well as a preparation method and a use method thereof. The double-component low-viscosity ultralow-temperature adhesive comprises a component A and a component B. The component A comprises the following components in percentage by mass: 20-40% of bisphenol A epoxy resin, 4-8% of aromatic epoxy resin, 6-10% of polyurethane modified epoxy resin, 1-2% of a rubber toughening agent, 5-20% of a diluent and the balance of an additive. And the component B comprises the following components in percentage by mass: 10-40% of a polyether amine curing agent, 10-40% of a fatty amine curing agent, 10-40% of an aromatic amine curing agent and 10-40% of a phenolic aldehyde amine curing agent. The adhesive provided by the invention has relatively strong compressive strength and excellent toughness, can keep good toughness in a low-temperature environment, is not easy to cause brittle rupture, can bear relatively large mechanical load, and is suitable for various industrial applications.

The invention relates to the technical field of adhesives, in particular to a high-temperature-resistant adhesive, a preparation method thereof and a high-temperature-resistant protective film. The invention provides a high-temperature-resistant adhesive. The high-temperature-resistant adhesive comprises acrylic resin, a cross-linking agent and a solvent, the dosage of the cross-linking agent is 1wt%-2wt% of the acrylic resin; the acrylic resin contains a structural unit as shown in the following formula I: # imgabs0 #; r is selected from alkylene with the carbon number of 1-3. The high-temperature-resistant monomer is introduced into a main body of the acrylic resin, and a boric acid group in the structure of the high-temperature-resistant monomer can be dehydrated under a high-temperature condition to form a boric acid ester structure and generate a cross-linking point, so that the cohesive strength is further improved, the adhesive is endowed with excellent high-temperature resistance, and the stripping force climbing of the adhesive at a high temperature is low.

The utility model discloses a tensile shear and stripping test piece sample preparation tool, which belongs to the field of adhesive detection and comprises a bottom plate, a tensile shear sample preparation component and a stripping sample preparation component, and the tensile shear sample preparation component and the stripping sample preparation component are arranged on the bottom plate. The tensile shear sample preparation assembly comprises a first test piece groove and a second test piece groove which are formed in the bottom plate, and the first test piece groove and the second test piece groove are formed in the first direction; the stripping sample preparation assembly comprises two guide stand columns arranged on the bottom plate, a plurality of pressing blocks are arranged between the two guide stand columns in a sliding mode in the second direction, and test piece mounting grooves are formed in the pressing blocks in the third direction; the first test piece groove and the second test piece groove are located between the two guide stand columns, the pressing block is located above the second test piece groove, and the first direction, the second direction and the third direction are perpendicular to one another. The device can be used for simultaneously preparing a tensile shear test piece and a stripping test piece, and the adhesive layer thicknesses of different adhesives can meet the standard requirements by adjusting the pressure.

A solid waste-based reinforced ceramic tile adhesive and a preparation method therefor. The solid waste-based reinforced ceramic tile adhesive comprises 17-22% of polyacrylamide modified solid waste residue powder, 3-7% of cement, 7-12% of tailing micro powder, 55-65% of graded tailing sand and 8-13% of a tensile adhesive. By limiting the raw material components and content of the tensile adhesive, the tensile adhesive strength of the solid waste-based adhesive with different substrates and the construction performance thereof can be ensured; and the solid waste residue powder is modified by using a very small amount of low-molecular-weight polyacrylamide, such that the stability of the system can be significantly improved, and the comprehensive performance of the solid waste-based ceramic tile adhesive can be enhanced. The solid waste-based reinforced ceramic tile adhesive comprises 90 wt% or more of solid wastes. By limiting the components and contents of each raw material, all components can act synergistically, so that the solid waste-based reinforced ceramic tile adhesive can replace traditional cementing materials such as cement, which greatly reduces the cost, realizes the comprehensive utilization of industrial solid waste materials, and has significant advantages such as saving on energy, having environmental protection and being low carbon.

The invention discloses a high-refractive-index nano-composite optical adhesive and a preparation method thereof, and belongs to the technical field of optical transparent adhesives. The optical adhesive is prepared by taking a polyurethane acrylate oligomer with a specific structure as matrix resin, introducing surface-modified barium titanate and zirconium oxide core-shell nanoparticles as a functional filler, and matching with an active diluent, a photoinitiator and a silane coupling agent in a specific proportion. Through the design of the core-shell structure, the core problems that the high-refractive-index nanoparticles are easy to agglomerate in an organic resin matrix, the dispersion stability is poor and the bonding force with a matrix interface is weak are effectively solved. The prepared optical adhesive has a refractive index of more than 1.65, a light transmittance of more than 99% and a haze of less than 0.3% after being cured, has excellent bonding strength, weather resistance and long-term use stability, and is especially suitable for precise lamination of high-end display devices (such as OLEDs (Organic Light Emitting Diodes) and micro-lens arrays).

The purposes of the present invention is: to provide an adhesive composition which has excellent adhesive force and holding properties in addition to excellent low dielectric properties; to provide an adhesive tape which has an adhesive layer that contains the adhesive composition; to provide a resin molded body which is molded from a resin composition that comprises the adhesive composition; to provide a composite structure which comprises the adhesive tape; to provide an automobile member which comprises the resin molded body or the composite structure; and to provide a method for producing a resin molded body using the composite structure.　The present invention provides an adhesive composition which contains: an acrylic copolymer that has a constituent unit derived from a (meth)acrylic acid alkyl ester, a constituent unit derived from an olefin-based polymer that has a polymerizable unsaturated double bond at an end thereof, and a constituent unit derived from a polar functional group-containing monomer; and a styrene-based elastomer that contains at least one substance selected from the group consisting of a block copolymer which has a block derived from a styrene-based monomer and a block derived from a conjugated diene-based monomer, and a hydrogenated product of the block copolymer.

The invention belongs to the technical field of adhesive preparation, and particularly relates to a flexible epoxy adhesive modified organic silicon adhesive and a preparation method and application thereof.The flexible epoxy adhesive modified organic silicon adhesive is composed of a component A and a component B, the component A is prepared from 40-70 parts of vinyl-terminated silicone oil, 10-30 parts of hydrogen-containing silicone oil, 5-20 parts of filler, 1-5 parts of coupling agent and 1-10 parts of curing agent; and the component B comprises the following components in parts by weight: 60-70 parts of vinyl-terminated silicone oil, 5-20 parts of epoxy resin, 5-15 parts of a platinum catalyst, 1-5 parts of an accelerant, 1-5 parts of an inhibitor and 5-20 parts of filler. Epoxy resin is introduced into an organic silicon matrix and is matched with a toughening agent and a catalyst, so that efficient combination of a two-phase system is realized, and the adhesive which is stable in performance, high in adhesive force and excellent in flexibility is obtained and has excellent comprehensive performance and application prospects in electronic packaging, automobile part bonding and building sealing.

The invention relates to the technical field of polyurethane adhesives, in particular to an adhesive for tooling polished aluminum and a preparation method thereof. The adhesive comprises a component A and a component B, wherein the raw materials for preparing the component A comprise at least 25-40 parts of a polyol composition, 50-75 parts of a calcium filler, 0.1-0.3 parts of a dispersant, 0.1-0.3 parts of a catalyst, 1-4 parts of a molecular sieve, 0.01-0.2 parts of a defoamer and 0.1-0.5 parts of nano silicon dioxide, and the component B comprises at least isocyanate. By controlling the selection and coordination of the polyol, the dispersant and the catalyst in the system and the addition amount of each raw material, when the provided adhesive is used for bonding the polished aluminum (1-2 mm) to a honeycomb panel, the roller peel strength is ≥60 N*mm / mm, thereby meeting the actual external wall application requirements.

The invention relates to the field of layered interior ceiling processing, and particularly discloses an environment-friendly automobile interior ceiling and a preparation method thereof.The environment-friendly automobile interior ceiling sequentially comprises base cloth, glue-coated PET fiber felt, base cloth, an adhesive and a surface decoration layer from bottom to top; the base cloth is made of any one of non-woven fabric, film-coated non-woven fabric or film-coated non-woven fabric; the preparation method comprises the following steps: coating polyurethane glue on the upper surface and the lower surface of the PET fiber felt to obtain a glue-coated PET fiber felt; spraying water to the glue-coated PET fiber felt, then attaching the glue-coated PET fiber felt to the base cloth, then carrying out hot press molding for 40-120s at the temperature of 100-140 DEG C, and cooling to obtain a semi-finished product; an adhesive is sprayed on the semi-finished product, a surface decoration layer is laid on the semi-finished product, hot pressing is conducted for 20-100 s at the temperature of 90-120 DEG C, after cooling, cutting, edge covering and aftertreatment are conducted, and a finished product is obtained. The method has the advantages of environmental protection, no pollution in the production process, no influence on human health of a user, facilitation of recovery and long service life.

The invention discloses an environment-friendly deformation-resistant reed wood composite shaving board and a preparation method thereof, and belongs to the technical field of boards. The reed wood composite shaving board is prepared from wood chips, reed fibers, basalt fibers, lignin fibers, plant extracts, nano silicon dioxide, acetylated distarch phosphate, a C30-45 alkyl cetearyl polydimethylsiloxane cross-linked polymer and a PEG-10 polydimethylsiloxane-vinyl polydimethylsiloxane cross-linked polymer according to a specific proportion. The adhesive is prepared from a methyl methacrylate cross-linked polymer, an MDI adhesive and an organic silicon waterproof agent. All the components are matched for use, the shaving board is prepared in a directional mode, the shaving board has excellent mechanical performance, crack resistance and deformation resistance, the environment-friendly performance is improved, and the use amount of glue is reduced. The novel formaldehyde-free adhesive and the plant extract are adopted to replace traditional formaldehyde-containing glue and a mildew-proof and insect-resistant agent, formaldehyde release is effectively avoided, and a healthier home decoration plate choice is provided for consumers.

The invention relates to the technical field of debondable adhesives, in particular to an electrically debondable adhesive and a preparation method thereof. The electrode material comprises an acrylate polymer, a conductive filler, a plasticizer, an antistatic agent, a curing agent, a modified electrode material and an auxiliary agent, the modified electrode material is prepared by modifying a basic electrode material through a modifier, is used for improving the electrolysis speed of the electrically debondable adhesive, and interacts with the acrylic polymer to improve the bonding performance. By introducing the modified electrode material, the adhesive can quickly respond and realize quick debonding after a specific voltage is applied; the cost and the difficulty of disassembling and replacing elements can be greatly reduced, meanwhile, damage to the elements is avoided, and the maintenance efficiency and the reliability of the electronic equipment are improved. The adhesive disclosed by the invention can still keep good adhesive performance and conductivity after being used for a long time, and the service life of a product is prolonged.

The invention discloses a power-on viscosity-reducing adhesive composition, a viscosity-reducing adhesive tape and a preparation method of the viscosity-reducing adhesive tape, and relates to the technical field of adhesive materials. The preparation method comprises the following steps: adding polyurethane acrylate and polybutylene adipate into a planetary stirring kettle, stirring, sequentially adding a PEDOT / PSS solution, a nano core-shell material, a dynamic cross-linking agent, hydrogenated rosin tackifying resin, TPU particles and butylated hydroxytoluene, stirring to obtain mixed glue, and carrying out vacuum defoaming to obtain the electrified viscosity-reducing glue composition. Coating a release film with the electrified viscosity-reducing adhesive composition, carrying out UV curing, and attaching the release film on the other side to obtain the electrified viscosity-reducing adhesive tape. The prepared electrified viscosity-reducing adhesive composition and viscosity-reducing adhesive tape have the advantages of being excellent in mechanical property, sensitive in response, remarkable in stripping force difference before and after electrification, stable at high temperature, stable in circulation, resistant to pollution and the like, nondestructive disassembly and reutilization of devices are achieved by regulating and controlling the adhesive force through an electric field, and the electrified viscosity-reducing adhesive composition and viscosity-reducing adhesive tape can be applied to an electric response assembly scene.

The invention discloses an electrolytic adhesive, an electrolytic cotton adhesive tape and a preparation method of the electrolytic adhesive. The electrolytic cotton adhesive tape comprises the following components in parts by weight: 5-10 parts of 1, 1 '-ferrocene diformyl chloride, 10-15 parts of acrylic acid beta-cyclodextrin ester, 3-8 parts of polyethylene glycol diglycidyl ether, 10-20 parts of ionic liquid, 1.5-3 parts of a cross-linking agent, 10-15 parts of tackifying resin and 0.5-1.5 parts of an initiator, and a polymer matrix comprises an acrylic acid-hydroxypropyl acrylate copolymer and acrylic acid-2-ethylhexyl ester. Comprising an adhesive layer and an adhesive tape base layer, the adhesive layer is prepared from the electrolytic adhesive, and the adhesive tape base layer is prepared from acrylic foam; the obtained electrolytic cotton adhesive tape has high initial adhesion and viscosity strength after power-on and power-off re-adhesion.

The invention relates to the technical field of polyurethane adhesives, and provides a heat-conducting polyurethane structural adhesive and a preparation and use method thereof.The heat-conducting polyurethane structural adhesive comprises a first component and a second component, and the first component comprises modified bio-based polyol, polythiol, heat-conducting filler, a first water removal agent, a thixotropic agent, a first catalyst and a second catalyst; the second component comprises epoxy resin, diisocyanate, polyisocyanate, a heat-conducting filler, a coupling agent, a second dewatering agent, a dispersing agent and a retarder; the modified bio-based polyol is selected from at least one of modified castor oil polyol, modified grease polyol and modified cashew nut shell oil polyol; the polythiol is selected from at least one of trimethylolpropane tri (3-mercaptopropionic acid ester), pentaerythritol tetra (3-mercaptopropionic acid ester), butanediol mercaptopropionic acid ester and polythiol. Through the arrangement, the heat-conducting polyurethane structural adhesive has relatively long openable time, and is rapidly cured at room temperature within a short time to generate relatively high initial curing strength.

The invention belongs to the technical field of composite material forming, and relates to a cabin thermal protection structure forming method which comprises the following steps: designing a needled felt; the needled felt is prepared; loading the needled felt into a mold and sealing; hybrid phenolic resin is injected into the mold; heating the mold to cure the hybrid phenolic resin; obtaining, heating and drying the heat-proof layer in the mold; the bonding face of the heat-proof layer and the structural part is coated with a primer; coating a silicon-based adhesive on the bonding surface; bonding and curing the heat-proof layer and the structural member; and processing the bonding allowance. According to the cabin thermal protection structure forming method provided by the invention, the heat-proof sleeve and the force-bearing structure are separately prepared, and then the heat-proof sleeve and the force-bearing structure are connected into the integral part in a sleeving manner, so that the heat-proof sleeve and the structural part can be produced in parallel, the production efficiency of products is greatly improved, and the production period is shortened.

The invention provides a double-component load-bearing adhesive and a preparation method thereof. The adhesive comprises a component A and a component B in a mass ratio of 1: (0.2-0.5), the component A comprises the following raw materials in parts by weight: 50 parts of epoxy resin; 20-40 parts of glass fiber, 20-40 parts of glass fiber, and 20-40 parts of glass fiber, based on 50 parts of epoxy resin; 2-10 parts of aluminum oxide; 10 to 20 parts of aluminum hydroxide; 1-13 parts of a plasticizer; 0.05 to 1 part of a modifier; wherein the epoxy resin comprises bisphenol A type epoxy resin, bisphenol F type epoxy resin and alicyclic epoxy resin; the component B comprises the following raw materials in parts by weight: 100 parts of a curing agent and 0-5 parts of an auxiliary agent based on 100 parts of the curing agent; wherein the curing agent comprises polyethylene polyamine, polyether amine, phenolic aldehyde amine and polyamide. The adhesive has excellent bonding strength, compression strength, toughness and heat resistance, and is suitable for fixing the bearing point of the LNG / LPG storage tank.

The invention discloses a high-temperature-resistant adhesive for a motor iron core punching sheet and a preparation method of the high-temperature-resistant adhesive, and the high-temperature-resistant adhesive comprises the following components in parts by mass: 60-80 parts of solid polyfunctional novolac epoxy resin; 5 to 15 parts of polyurethane modified epoxy resin; 5 to 15 parts of solid bisphenol A epoxy resin; 5-20 parts of a heat-resistant thermoplastic resin; 1 to 4 parts of a silane coupling agent; 2-8 parts of a filler; 4-10 parts of a curing agent; 0.05 to 0.2 part of an accelerant; the solvent is used for dissolving and mixing the components; according to the high-temperature-resistant adhesive for the motor iron core punching sheet, an organic-inorganic toughening mode is combined, three kinds of organic resin including polyurethane modified epoxy resin, solid bisphenol A type epoxy resin and heat-resistant thermoplastic resin are adopted, and an inorganic filler is used in a matched mode, so that the solid polyfunctional epoxy resin is subjected to toughening modification. According to the technical scheme, the problem that high toughness and high temperature resistance are difficult to consider under the condition that an existing motor iron core punching sheet adopts a modified epoxy adhesive to improve the toughness and peel strength of the adhesive is solved.

The invention relates to the technical field of adhesives, and particularly discloses an electrogenerated viscosity-reducing adhesive as well as a preparation method and application thereof. The electrogenerated viscosity-reducing glue is prepared from the following raw materials in parts by weight: 100 to 150 parts of polyacrylate, 30 to 50 parts of polyvinyl alcohol, 20 to 40 parts of functional monomer, 1 to 5 parts of conductive agent, 2 to 6 parts of alkenyl-containing ionic liquid, 1 to 5 parts of lithium salt, 1 to 5 parts of tackifier, 1 to 2 parts of dispersant, 0.1 to 2 parts of initiator and 60 to 100 parts of organic solvent, and the conductive agent is obtained by synergistically modifying hydroxylated carbon nanotubes with 2-thiophenecarboxylic acid and 2-picolinic acid. The electrogenerated viscosity-reducing adhesive is applied to the electrogenerated viscosity-reducing adhesive tape, and the obtained adhesive tape is excellent in peel strength and shear strength, high in power-on viscosity-reducing efficiency, free of adhesive residue during peeling, reusable and wide in application prospect.

The invention discloses a preparation method of a vehicle-mounted OCA optical adhesive, and belongs to the technical field of optical adhesive materials. The vehicle-mounted OCA optical adhesive comprises an optical light release film, an acrylic adhesive layer and an optical heavy release film which are sequentially arranged from top to bottom, the preparation method comprises the following steps: mixing and stirring an acrylic pressure-sensitive adhesive, 2-ethylhexyl acrylate, isobornyl acrylate, acryloylmorpholine, dodecyl ester, N-vinyl pyrrolidone, a bridging agent and a photoinitiator, filtering, and defoaming to obtain an acrylic adhesive; and coating a release film with the obtained acrylic adhesive, and irradiating the release film with a halogen lamp to obtain the vehicle-mounted OCA optical cement. The vehicle-mounted OCA optical adhesive prepared by the invention has better high-temperature-resistant and high-temperature-resistant and high-humidity-resistant effects, is simple in preparation process and is suitable for large-scale production.

The utility model belongs to the technical field of adhesive flowability detection, and particularly relates to an adhesive flowability detection device which comprises a workbench, a collection box fixedly mounted on the workbench, two fixed columns fixedly mounted on one side of the collection box on the workbench, and an inclined plate rotatably mounted between the two fixed columns, a plurality of transparent pipes are fixedly mounted at the top of the inclined plate; the rotating assembly is located on the workbench and used for driving the inclined plate to rotate; the transparent tube is fixedly installed on the workbench, the U-shaped plate is fixedly installed on the workbench, a plurality of raw material boxes are fixedly installed on the top of the U-shaped plate, a sliding groove is formed in the U-shaped plate, and discharging ports of the raw material boxes are communicated with the sliding groove. Therefore, the flowability conditions of the adhesive at different inclination angles can be recorded, and flowability tests can be simultaneously carried out on different types of adhesives without errors.