29 results about "Cyanoacrylate adhesive" patented technology

The utility model belongs to the technical field of powerful cyanoacrylate adhesive production equipment, and particularly relates to a powerful cyanoacrylate adhesive sealing and containing device which comprises a containing barrel, an end cover and a fixing assembly are arranged at the upper end of the containing barrel, the containing barrel is connected with the end cover through the fixing assembly, and a discharging assembly is arranged at the upper end of the end cover. The lower end of the containing barrel is fixedly connected with four supporting legs, the supporting legs are evenly distributed at the lower end of the containing barrel, and a cleaning assembly is arranged in the containing barrel. By arranging the cleaning assembly, the inner wall of the containing barrel can be cleaned, and meanwhile, the cleaning assembly drives a cyanoacrylate adhesive at the bottom of the containing barrel to move upwards in the cleaning process, so that the cyanoacrylate adhesive is not left at the bottom of the containing barrel any more; and after the end cover is opened, the cyanoacrylate adhesive in the containing barrel can be conveniently taken out, so that the waste of the cyanoacrylate adhesive is reduced.

The invention discloses a distributed optical fiber vibration measurement sensor wiring method and device of a bridge structure, and the method comprises the following steps: determining a key monitoring region of a bridge, laying a wiring device in the key monitoring region, enabling a single-mode optical fiber to sequentially pass through an optical fiber leading-in port and an optical fiber leading-out port, and obtaining an optical fiber sensing network; winding the single-mode optical fiber according to a set mode to form a redundant optical fiber section; the method comprises the following steps of: coupling and fixing a main optical fiber linear section on the surface of a bridge along the center line of a bridge structure by adopting cyanoacrylate adhesive, controlling a servo motor in a wiring device according to the real-time vibration frequency and amplitude of the bridge, and dynamically adjusting the number of winding turns of a redundant optical fiber section; a wiring device with redundant optical fibers is arranged in a key monitoring area, the density of local optical fiber sampling points is increased through a redundant section, the bridge monitoring requirement is met, the winding speed is dynamically adjusted through a servo motor, it is ensured that the optical fibers keep constant tension in the storage and arrangement process, and the optical fibers are prevented from being damaged.

This application discloses a distributed fiber optic vibration sensor wiring method and wiring device for bridge structures. The method includes the following steps: determining the key monitoring areas of the bridge; deploying a wiring device in the key monitoring areas; sequentially passing single-mode optical fibers through the fiber inlet and outlet ports to obtain an optical fiber sensing network; winding the single-mode optical fibers according to a set method to form redundant fiber segments; using cyanoacrylate adhesive to couple and fix the straight segments of the main optical fibers along the centerline of the bridge structure to the bridge surface; dynamically adjusting the number of winding turns of the redundant fiber segments by controlling the servo motor in the wiring device according to the real-time vibration frequency and amplitude of the bridge; by deploying a wiring device with redundant optical fibers in the key monitoring areas, the density of local optical fiber sampling points is increased by utilizing the redundant segments to meet the bridge monitoring requirements; and the winding speed is dynamically adjusted by the servo motor to ensure that the optical fibers maintain constant tension during storage and deployment, thus avoiding damage to the optical fibers.

The invention relates to an additive for enhancing the repairing capacity of an asphalt concrete pavement and a preparation method of the additive, and belongs to the technical field of asphalt concrete pavement repairing. The preparation raw materials comprise 10-15 parts of a surface coagulant, 10-15 parts of diathermanous filaments, 3-9 parts of a surfactant, 6-8 parts of an antioxidant, 3-6 parts of an anti-ultraviolet agent and 30-40 parts of a styrene-butadiene-styrene block copolymer. The surface coagulator prepared from the anaerobic adhesive solution, the alpha-cyanoacrylate adhesive solution and the pore increasing powder enables the surface of the additive to be coagulated for a shorter time, and when cracks on the asphalt pavement are repaired, traffic can be opened to the fastest extent, so that the road section closing time is shortened as much as possible, and the pressure of road congestion is relieved as much as possible; besides, the area of penetration and extension of the additive into the asphalt through cracks is maximum, so that the overall strength and stability of a repaired part are enhanced, cracks, potholes and other diseases can be better filled, and the flatness and durability of a road are improved.

The utility model belongs to the technical field of cyanoacrylate adhesive production equipment, and particularly relates to a high-speed discharging stirring kettle for cyanoacrylate adhesive production, which comprises a reaction kettle, a feeding pipe is fixedly connected to the upper end of the reaction kettle, a mixing component is mounted in the reaction kettle, a plurality of supporting legs are fixedly connected to the lower end of the reaction kettle, and the mixing component is mounted in the reaction kettle. A discharging hole is formed in the lower end face of the reaction kettle, a discharging pipe is fixedly connected to the bottom end of the reaction kettle and located at the lower end of the discharging hole, a second rotating rod is rotationally connected to the interior of the discharging pipe, a second stirring blade, a third stirring blade, a scraping plate and a sealing plate are fixedly connected to the circumferential face of the second rotating rod, and the scraping plate is located in the discharging pipe; the scraping plate is located at the right upper end of the sealing plate, the third stirring blade is located at the right lower end of the sealing plate, and an annular sealing seat is fixedly connected to the interior of the discharging pipe. According to the device, the prepared cyanoacrylate adhesive can be quickly discharged, and the working efficiency of the device is improved.

The invention relates to the technical field of demolding, and particularly discloses a novel semi-permanent superoleophobic demolding agent and a preparation method thereof. The release agent is prepared from the following raw materials in percentage by weight: 1.0 to 3.5 percent of fluorinated polyhedral oligomeric silsesquioxane, 1 to 10 percent of fluorinated silicon dioxide nanoparticles, 1 to 4 percent of alpha-cyanoacrylate adhesive, 1 to 3 percent of perfluoroalkyl silane, 0.1 to 1 percent of pyridine, 0.1 to 0.5 percent of silane coupling agent and the balance of solvent. The release agent disclosed by the invention has the characteristics of excellent super-oleophobicity, excellent wear resistance, outstanding chemical stability, relatively strong adhesive force, wide applicability and the like, can play a good barrier role between a molded surface and a base material, reduces the probability of adhesion between molded parts, and is relatively low in probability of transferring to the surfaces of the molded parts, so that the release agent can be applied to the surface treatment of the molded parts. Therefore, the recoating frequency is obviously reduced, and the labor cost and the material consumption are reduced.

The invention relates to the technical field of instant adhesives, and particularly discloses a synthesis method of a medical cyanoacrylate adhesive with low formaldehyde residue, which adopts a method of adding a formaldehyde reaction removal agent after the condensation polymerization of cyanoacetate and formaldehyde is finished to effectively remove the formaldehyde which is not completely reacted, so that the formaldehyde residue is reduced. The method provided by the invention has the advantages that the formaldehyde residue in the alpha-cyanoacrylate is obviously reduced, the clinical use safety of the alpha-cyanoacrylate is improved, and the method provided by the invention is simple and easy to operate; meanwhile, the requirement on equipment is not high, the investment is less, and the process is simple, convenient and very economical.

The invention relates to the technical field of adhesive preparation, in particular to an alpha-isooctyl cyanoacrylate adhesive and a preparation method thereof. The alpha-isooctyl cyanoacrylate adhesive is prepared from the following raw materials in parts by weight: 90.0 to 99.0 parts of base glue, 0.05 to 0.2 part of a polymerization inhibitor, 0.1 to 1.0 part of a stabilizer, 0.5 to 2 parts of a thickening agent and 0.1 to 0.5 part of an antibacterial agent, the base rubber at least comprises alpha-cyanoacrylate isooctyl ester; the polymerization inhibitor is at least one of hydroquinone, trifluoroacetic acid and glacial acetic acid; the stabilizer is sulfur dioxide and / or p-toluenesulfonic acid; the antibacterial agent is an inorganic mineral loaded with overplated metal single atoms. The alpha-isooctyl cyanoacrylate adhesive provided by the invention can be used for quickly suturing wounds and also has the effects of resisting bacteria, diminishing inflammation and accelerating wound healing.

The purpose of the present invention is to provide a thickener having little change in viscosity when used as a thickener for cyanoacrylate adhesives. The solution of the present invention is a thickening agent for a cyanoacrylate adhesive agent, the thickening agent for a cyanoacrylate adhesive agent comprising a methacrylic resin that is in the form of beads having an average particle diameter of 50-500 [mu] m and has a moisture content of 1% by mass or less and a compound represented by general formula (1), with respect to 100% by mass of the methacrylic resin, the amount of the compound represented by general formula (1) being less than or equal to 10% by mass, and the amount of the compound represented by general formula (1) being less than or equal to 10% by mass. Thickening agent for cyanoacrylate adhesives, said thickening agent containing 0.01-10 mass% of compound represented by general formula (1) # imgabs0 #

The invention relates to a vein closure adhesive as well as a preparation method and application thereof, the vein closure adhesive is prepared by reaction of raw materials, and the raw materials comprise a cyanoacrylate monomer, a PMMA modifier, a polymerization inhibitor, a stabilizer and an antioxidant; wherein the feeding mass ratio of the PMMA modifier is 5%-25% of that of the cyanoacrylate monomer; the feeding mass ratio of the polymerization inhibitor to the cyanoacrylate monomer is 0.002%-0.01%; the feeding mass ratio of the stabilizer is 0.005%-0.1% of that of the cyanoacrylate monomer; the feeding mass ratio of the antioxidant is 0.02%-0.06% of that of the cyanoacrylate monomer. During preparation, the cyanoacrylate monomer is uniformly mixed with the polymerization inhibitor, the stabilizer, the antioxidant and the PMMA modifier to prepare the vein closure adhesive. By designing a brand new preparation route of the vein closure adhesive, the barrier that a cyanoacrylate adhesive needs to be synthesized by formaldehyde is broken through, the problem that in-vivo application of aldehyde-containing glue is limited is solved, and the vein closure adhesive is suitable for treating varicosity.

An electrical connection assembly includes a pair of conductors welded onto one another and a layer including a cyanoacrylate glue disposed in an area between the conductors.

The present application relates to a multifunctional-damage responsive biofiber and methods of forming thereof, comprising: a core comprising a polymeric fiber; a crosslinked endospore loaded hydrogel layer coating the core, wherein the hydrogel layer is formed with: a solution comprising endospores, one or more anionic polymers, and one or more crosslinking agents; and a (co)polymer shell encapsulating the hydrogel layer, wherein the shell has one or more layers which may be the same or different, and each of the one or more layers is formed with a (co)polymer selected from the group consisting of nitrocellulose (NITR), epoxy Resin (ER), polymethylmethacrylate (PMMA), polyvinylidene fluoride (PVDF), cyanoacrylate adhesive (CYA), polystyrene (PS), polylactic acid (PLA), and combinations thereof. This application also relates to methods for self-healing a matrix material including impregnating a matrix material with the multi-functional damage-responsive biofiber.

The present invention relates to cyanoacrylate adhesive kits and the constituent components thereof that may be useful in the field of wound closure adhesives. In particular, the invention relates to a kit comprising an adhesive component comprising a cyanoacrylate as defined herein, and an initiator component comprising a tertiary amine salt of formula (I) wherein R1, R2, R3, R4, R5, R6, R7, m, n, p and X are as defined herein. The invention also relates to an adhesive composition comprising the cyanoacrylate and the tertiary amine salt. The invention also relates to initiators, uses, and methods comprising the tertiary amine salt.

The present application relates to the technical field of cyano acrylate adhesive, and particularly discloses a flame-retardant cyano acrylate adhesive. The flame-retardant cyano acrylate adhesive comprises component A and component B; the component A comprises cyano acrylate and reinforcing aids; the component B comprises flame retardants and other aids; and the reinforcing aids are hydroxy acrylate compounds or hydroxy methacrylate compounds. The cyano acrylate adhesive provided by the present application not only has high strength and toughness, good machinability, but also has excellent flame retardancy, greatly improving the safety of cyano acrylate adhesive application, and has small volume shrinkage after curing, and is suitable for bonding porous materials or parts with large gaps and complex shapes. The cyano acrylate adhesive has very important significance for expanding the application field of cyano acrylate and has extremely high popularization and application value.

The invention discloses a low-whitening ethyl cyanoacrylate adhesive composition and a preparation method thereof, and relates to the technical field of instant dry adhesives. The low-whitening ethyl cyanoacrylate adhesive composition is prepared from the following components in parts by weight: 80 to 88 parts of alpha-ethyl cyanoacrylate, 1.2 to 4.0 parts of a cyanoacetamide volatile anchoring agent, 5.0 to 12.0 parts of a low vapor pressure cyanoacrylate monomer, 0.055 to 0.38 part of a stabilizer and 2.0 to 7.0 parts of a thickening agent. According to the low-whitening ethyl cyanoacrylate adhesive composition provided by the invention, the whitening phenomenon can be remarkably reduced, and the main monomer is still alpha-ethyl cyanoacrylate, so that the quick positioning, high shear strength and good adhesive property to various substrates of the traditional ECA adhesive are maintained; the comprehensive performance is balanced.

The utility model relates to the related field of new energy, in particular to a high-voltage wiring harness for a new energy automobile, which comprises a power battery, a mounting plate, a high-voltage cable and a fixing assembly. According to the utility model, the high-voltage cable is arranged, the high-voltage cable comprises the housing, the housing wraps the wire harness, the inner wall of the housing is provided with the interlayer, the interlayer is a dry and vacuum cavity, and the interior of the interlayer is filled with the filling liquid made of the cyanoacrylate glue, so that when the housing is damaged, the cyanoacrylate glue flows out and is exposed in the air; when the insulating material encounters a trace amount of moisture (humidity) in the air, anionic polymerization reaction can be rapidly carried out to form a polymer long chain, and the polymer long chain can be converted from liquid to solid within several seconds to dozens of seconds, so that the damaged part of the shell can be repaired. Or the problems of current leakage and short circuit caused by damage due to external force and material aging are solved, and the driving safety is greatly improved.

The utility model belongs to the technical field of detection equipment for environment-friendly cyanoacrylate adhesive production, and particularly relates to adhesive force detection equipment for environment-friendly cyanoacrylate adhesive production, which comprises a bottom plate, a vertical plate fixedly connected to the upper end of the bottom plate, a first electric telescopic rod fixedly connected to the upper end of the vertical plate, and a second electric telescopic rod fixedly connected to the lower end of the first electric telescopic rod. The output end of the first electric telescopic rod is fixedly connected with a tension tester, the lower end of the tension tester is fixedly connected with a connecting frame, the interior of the connecting frame is connected with a testing frame through a connecting assembly, the upper end face of the bottom plate is provided with a rectangular groove, the interior of the rectangular groove is slidably connected with an extrusion plate, and the lower end of the bottom plate is fixedly connected with a second electric telescopic rod. And the output end of the second electric telescopic rod is fixedly connected with the extrusion plate. During testing, the direction of force for fixing the testing plate is the same as that of pulling force during testing, at the moment, the testing plate can be stably located in the testing device for stable testing operation, the squeezing plate is not prone to being affected, and therefore the service life of the squeezing plate is prolonged.

The invention relates to the technical field of cyanoacrylate adhesives, and particularly discloses a low-yellowing UV-moisture dual-curing cyanoacrylate adhesive and a preparation method thereof.The low-yellowing UV-moisture dual-curing cyanoacrylate adhesive is prepared from, by mass, 90%-95% of cyanoacrylate monomer, 0.5%-2% of photoinitiator, 0.001%-0.005% of metallocene component and 0.01%-0.2% of ultraviolet light absorber, the free radical stabilizer accounts for 0.01-0.1%, the acid stabilizer accounts for 0.001-0.005%, and the thickening agent accounts for 1-10%. Through combined addition of the photoinitiator, the ultraviolet light absorber and the free radical stabilizer, the problem of yellowing of an adhesive layer after the UV-moisture dual-curing cyanoacrylate adhesive is cured is solved.

The utility model belongs to the technical field of cyanoacrylate adhesive production reaction kettles, and particularly relates to an efficient reaction kettle for cyanoacrylate adhesive production, which comprises a kettle body, a connecting pipe is rotatably connected in the kettle body, a mounting frame is fixedly connected to the top of the kettle body, a rotating column is fixedly connected to the output end of a motor, and the rotating column is fixedly connected to the output end of the motor. A driving wheel is fixedly connected to the circumferential surface of the rotating column, a water inlet pipe is rotatably connected to the interior of the connecting pipe, a spray head and a first connecting column are fixedly connected to the bottom of the connecting pipe, a connecting rod and a stirring column are fixedly connected to the circumferential surface of the first connecting column, and a fixing column is slidably connected to the interior of the connecting rod; the ends, away from the connecting rods, of the fixing columns are fixedly connected with upper scrapers. Through the arrangement of the driving wheel, the driven wheel and the upper scraping plate, the stirring efficiency is improved, and the interior of the kettle body is convenient to clean; and by arranging a sliding groove, a sliding block, a fixing column and a spring, the scraping effect of the scraping plate is improved.

The present invention relates to concrete compositions and methods of making a concrete composition having self-healing properties, including a cementitious matrix impregnated with a plurality of biofibers, wherein the biofibers comprise: a polymer fiber core comprising one or more polymers selected from the group consisting of polyester, polyethylene, polypropylene, polyvinyl alcohol, polyamide, aramid, polyacrylonitirile, cellulose, polyurethane, and combinations thereof; a crosslinked hydrogel layer coating on the polymer fiber core, wherein the hydrogel layer comprises endospores, one or more cross-linked anionic polymers, and a (co)polymer shell encapsulating the hydrogel layer, wherein the shell has one or more layers which may be the same or different, and each of the one or more layers is formed with a (co)polymer selected from the group consisting of nitrocellulose (NITR), epoxy resin (ER), polymethyl methacrylate(PMMA), polyvinylidene fluoride (PVDF), cyanoacrylate adhesive (CYA), polystyrene (PS), polylactic acid (PLA), and combinations thereof.

The utility model belongs to the technical field of cyanoacrylate adhesive preparation, and particularly relates to a cyanoacrylate adhesive preparation device which comprises a reaction box body, a motor is fixedly connected to the upper surface of the reaction box body, a driving gear is fixedly connected to an output shaft of the motor, and a fixed seat is fixedly connected to the upper surface of the reaction box body. The upper end of the fixed seat is movably connected with a driven tooth, the interior of the driven tooth is in threaded connection with a screw rod, the lower end of the screw rod penetrates through the interior of the fixed seat and extends into the reaction box body, the lower end of the screw rod is fixedly connected with a movable plate, the upper surface of the movable plate is provided with a through hole, and the upper surface of the movable plate is fixedly connected with two limiting rods; the upper ends of the two limiting rods penetrate through the inner top of the reaction box body and extend to the upper part of the reaction box body. According to the utility model, raw materials can be uniformly mixed, the reaction speed is accelerated, and the production efficiency is improved, so that the qualified rate of products is improved.

The present invention provides a 2-cyanoacrylate adhesive composition that can suppress the decrease in curing rate for aluminum during storage. [Solution] A 2-cyanoacrylate adhesive composition having a content of trialkyl phosphate with an alkyl group having 1 to 4 carbon atoms in the alkyl group of 700 ppm by mass or less.

An organic dental device includes a biobased matrix including a nanocomposite, a pigment composition, an organic composition, a plasticizer mixture, an adhesive component, ZnO nanoparticles, and at least one plasticizer. The nanocomposite includes a mixture of olive seed nanocellulose, date seed nanocellulose, fish bone nanocellulose, sheep bone nanocellulose, olive seed nanostarch, date seed nanostarch, fish bone nanostarch, and sheep bone nanostarch, the organic composition includes starch, a moringa leaf extract, a chicken-sourced glycerin, fish bone powder, and sheep bone powder, the plasticizer mixture comprises polyvinyl chloride, the pigment composition comprises beetroot peel pigment, blueberry pigment and an ajwa date coating, and the adhesive component comprises a cyanoacrylate adhesive, Acacia arabica glue, a Lannea sp gum, okra gel, aloe vera gel, and jackfruit latex.

The invention discloses a preparation method of a nitrile rubber sealing ring, which comprises the following steps: cutting a nitrile rubber sealing strip, immersing sections on two sides in a polyisocyanate adhesive JQ-1, airing, then coating a cyanoacrylate adhesive on the section on one side or the sections on two sides, aligning the sections on the two sides, and applying pressure to bond the end surfaces on two sides of the nitrile rubber sealing strip, thereby obtaining the nitrile rubber sealing ring. And preparing the nitrile rubber sealing ring. According to the invention, the polyisocyanate adhesive JQ-1 is matched with cyanoacrylate adhesives selected from the group consisting of Litai 8400 instant adhesive, Litai 406 instant adhesive and the like to bond the section of the nitrile rubber sealing strip, so that the bonding part of the sealing ring is endowed with certain lubricating grease resistance, and the bonding performance of the bonding part of the sealing strip after lubricating grease resistance reaches more than 1MPa; the sealing strip can be prevented from being cracked too early during use and can be applied to wind power, engineering machinery bearings and other scenes, and the service life of the sealing ring can reach 3-4 years.

The invention relates to an electrical connection assembly (2), in particular for power electronics (1) of an electrically driven vehicle, and to a method for producing such a connection assembly. Two conductors (4, 6) are connected to one another by means of a solder joint (18). A layer (12) which consists of or comprises a cyanoacrylate adhesive (14) is located between the two conductors (4, 6). The solder joint (18) is preferably located in a region (16). In addition, at least one layer (20) of a material (22) which prevents or impedes the hardening of the cyanoacrylate adhesive (14) can be present in the region (16). The thickness (12) of the material is preferably a maximum of twice the surface roughness (R) of the surface (28). In order to achieve a predetermined surface roughness R, the region (16) can be provided at least in sections with a roughening (24).

To provide a thickener that exhibits little change in viscosity when used as a thickener for cyanoacrylate adhesives.SOLUTION: A thickener for cyanoacrylate adhesives comprises: a methacrylic resin in a bead form with an average particle diameter of 50 to 500 μm and a moisture content of 1 mass% or less; and a compound represented by the general formula (1) in the figure. The content of the compound represented by the general formula (1) is 0.01 mass% to 10 mass% relative to 100 mass% of the methacrylic resin.SELECTED DRAWING: Figure 1

The present application relates to a multifunctional-damage responsive biofiber and methods of forming thereof, comprising: a core comprising a polymeric fiber; a crosslinked endospore loaded hydrogel layer coating the core, wherein the hydrogel layer is formed with: a solution comprising endospores, one or more anionic polymers, and one or more crosslinking agents; and a (co)polymer shell encapsulating the hydrogel layer, wherein the shell has one or more layers which may be the same or different, and each of the one or more layers is formed with a (co)polymer selected from the group consisting of nitrocellulose (NITR), epoxy Resin (ER), polymethylmethacrylate (PMMA), polyvinylidene fluoride (PVDF), cyanoacrylate adhesive (CYA), polystyrene (PS), polylactic acid (PLA), and combinations thereof. This application also relates to methods for self-healing a matrix material including impregnating a matrix material with the multi-functional damage-responsive biofiber.

This invention provides a 2-cyanoacrylate-based adhesive composition with improved heat resistance for bonding. [Solution] A 2-cyanoacrylate adhesive composition containing a 2-cyanoacrylate compound including ethoxyethyl-2-cyanoacrylate, wherein the content of 2-ethoxyethanol is 0.1% by mass or less.