211 results about "Polymer adhesive" patented technology

The invention relates to the technical field of antibacterial and antifouling fabrics, provides a preparation method of an antibacterial and antifouling fabric, and solves the problem of poor fabric durability caused by single functional component and lack of physical protection in the prior art. The preparation method comprises the following steps: S1, preparing MOFs loaded antibacterial fibers: blending a metal organic framework antibacterial composite nanomaterial and a polymer matrix material, and carrying out melt spinning to prepare the MOFs loaded antibacterial fibers; s2, constructing a self-cleaning functional coating: dispersing the fluorinated nanoparticles and a polymer adhesive in a solvent to prepare a self-cleaning coating solution; s2, performing surface activation treatment on the MOFs-loaded antibacterial fiber obtained in the step S1, soaking the MOFs-loaded antibacterial fiber in the self-cleaning coating liquid, and performing pulling and curing to form a bionic micro-nano structure coating on the surface of the MOFs-loaded antibacterial fiber so as to obtain a functional composite fiber; s3, spinning forming: taking the functional composite fibers obtained in the step S2 as warp yarns and / or weft yarns, and weaving to obtain the antibacterial and antifouling fabric.

The invention belongs to the technical field of soil curing materials, and relates to a salinized soil curing agent and a preparation method thereof. The composite material comprises the following components in parts by mass: 20-40 parts of a bio-based polymer cementing material; 10 to 20 parts of modified bentonite; 15 to 30 parts of superfine slag powder; 1 to 5 parts of nano silicon dioxide; 5 to 15 parts of magnesium phosphate cement; 3-8 parts of a plant fiber reinforced material; 0.5 to 2 parts of a dispersant; and 2-6 parts of a composite slow-release salt-resistant additive. The problems that a traditional curing agent is weak in salt corrosion resistance and poor in durability in salinized soil are solved, the mechanical property and long-term stability of cured soil are remarkably improved, and the environment-friendly, efficient and high-adaptability salinized soil reinforcing effect is achieved.

The invention provides a polymer binder generation method and device, and the method comprises the steps: obtaining a polymer binder data set; inputting the molecular structure into a generation model to generate a polymer binder candidate structure; inputting the polymer binder candidate structure into a prediction model to predict a candidate parameter data set, the candidate parameter data set comprising candidate physical parameters, candidate chemical parameters and candidate performance parameters; performing molecular dynamics simulation according to the candidate structure, the candidate physical parameters, the candidate chemical parameters and the candidate performance parameters of the high-molecular binder, and determining performance evaluation indexes; and based on the performance evaluation index, optimizing the candidate structure of the high-molecular binder, and outputting the target high-molecular binder. According to the method and the device, the optimized target polymer binder is generated, the simulation cost is reduced, and the material performance is improved.

A polymer capsule jacketed projectile includes a preformed core enclosed by a nose capsule and a base capsule. The preformed core has an ogive region tapering into a core nose that is connected to a core base by the bearing surface. The nose capsule engages the base capsule around the bearing surface at a jacket joint to form the polymer capsule jacket. The outer surface of the polymer capsule jacket may be seamless, having no visible edges or protrusions, or a cannelure may be formed in the outer surface at the location of the jacket joint. The nose capsule and the base capsule are dip molded and the preformed core is pressed into engagement with both capsule pieces to form the polymer capsule jacketed projectile.

The invention relates to a binder composition for manufacturing a wood-based material, a method for manufacturing such a wood-based material and such a wood-based material. In order to provide a binder composition for manufacturing a wood-based material, in which the speed of curing can be specifically controlled and at the same time diffusion of the binder into the wood material to be bound is prevented in the best possible way, thereby ensuring a safe, fast and cost-effective manufacturing process with the lowest possible use of binder, fast and cost-effective manufacturing process with the lowest possible binder consumption without reducing the product quality, it is provided that the binder composition comprises an organic phase having at least one polymer adhesive, an aqueous phase, at least one phase transfer catalyst for accelerating the curing of the polymer adhesive and a hydrophilizing agent comprising or formed from at least one silane compound for increasing the hydrophilicity of the polymer adhesive and / or for reducing the penetration of the polymer adhesive into the material of the wood-based material to be bonded.

The invention discloses a preparation method of a polymer adhesive capable of broad-spectrum adhesion based on a hydrogen bond-containing amphiphilic deep eutectic solvent of an acrylic acid derivative, and belongs to the technical field of polymer adhesives. The preparation method of the adhesive comprises the following steps: S1, mixing a hydrogen bond donor and a hydrogen bond acceptor, heating and stirring until the mixture is clarified to obtain a eutectic solvent; s2, adding an acrylate monomer and an acrylamide monomer into the eutectic solvent, and uniformly mixing to obtain a mixture; and S3, sequentially adding a chemical cross-linking agent and a photoinitiator into the mixture, and carrying out photo-initiation to obtain the adhesive. The adhesive prepared by the invention has the characteristics of high adhesive power, debonding as required, excellent waterproofness, efficient VOCs adsorption, adaptability to hydrophilic and hydrophobic materials and the like.

The invention belongs to the technical field of solar photovoltaics, and provides novel efficient light conversion photovoltaic glass and a preparation method thereof.The preparation method comprises the steps that glass colored glaze ink corresponding to the novel efficient light conversion photovoltaic glass is prepared, and glass powder, a light conversion material, pearl powder, light diffusion particles and an organic carrier are mixed; the content of the light conversion material is more than 5% and less than 30%; the particle size of the pearl powder is larger than 5 microns and smaller than 20 microns, and the content is larger than 1% and smaller than 10%; the content of the light diffusion particles is greater than 0.1% and less than 5%; printing the prepared glass colored glaze ink on the surface of the front plate glass layer; carrying out toughening treatment on the front plate glass layer printed with the glass colored glaze printing ink, and sintering the glass colored glaze printing ink to form a glass colored glaze layer; the battery piece is bonded to the front plate glass layer with the glass colored glaze layer through the upper adhesive film layer, the back plate glass layer is bonded to the battery piece through the lower polymer adhesive film layer, and preparation of the novel efficient light conversion photovoltaic glass is completed.

The invention discloses sound insulation mortar, a preparation method, a sound insulation mortar system and a construction technology, and belongs to the field of building materials. The phosphogypsum-based low-carbon thermal insulation and sound insulation mortar is prepared from the following raw materials in parts by weight: 50 to 60 parts of phosphogypsum, 20 to 30 parts of filler, 10 to 15 parts of inorganic admixture, 10 to 15 parts of glass beads, 5 to 10 parts of aerogel, 0.1 to 0.5 part of water-retaining agent, 1 to 4 parts of polymer rubber powder, 0.02 to 0.05 part of retarder and 0.2 to 0.5 part of water reducing agent. The ardealite-based low-carbon thermal insulation and sound insulation mortar is compact in structure and good in crack resistance, and has an excellent sound insulation effect on the premise of ensuring that the mechanical property reaches the standard. The thermal-insulation and sound-insulation material is good in fire resistance and outstanding in aging resistance and durability in the long-term use process, has convenient construction performance and can fully meet the comprehensive use requirements of constructional engineering for thermal-insulation and sound-insulation materials.

Disclosed is a method for manufacturing a separator having a polymer adhesive layer. The method includes preparing an aqueous polymer slurry comprising a particulate binder polymer having a glass transition temperature Tg of 20° C. or more and a particle size D50 of 300 to 800 nm, a wetting agent, and a particulate acrylic binder polymer having a glass transition temperature Tg of −10° C. or less and a particle size D50 of 100 to 200 nm, and coating the aqueous polymer slurry on at least one surface of a polyolefin-containing porous membrane having pores and drying the aqueous polymer slurry.

The invention belongs to the technical field of geopolymer materials, and particularly provides a method for preparing a geopolymer cementing material based on alkaline solution modified dolomite. The method specifically comprises the following steps: mixing an alkali-activated solution with dolomite to prepare a modified alkali-activated solution; the dolomite is mixed with a geopolymer precursor, the geopolymer cementing material is obtained, and the dolomite accounts for 5%-10% of the mass of the polymer precursor. According to the invention, precipitation of Ca < 2 + > and Mg < 2 + > or generation of Ca (OH) 2 in dolomite is promoted in an alkaline environment, the reaction activity is improved, the material strength is improved while the coagulation time is shortened, and the problems of delayed coagulation and mechanical property reduction caused by traditional direct addition of dolomite are solved.

The embodiment of the invention belongs to the technical field of electrochemical gas sensors, and relates to a preparation method of a counter electrode of an NO sensor, which comprises the following steps: adding a polymer adhesive into an organic solvent to prepare a polymer adhesive mother solution; mixing manganese dioxide powder with the polymer adhesive mother liquor, and stirring to form uniform slurry; coating a substrate with the slurry, and performing drying treatment to form a counter electrode plate; and putting the counter electrode plate into an environment with reducing gas or inert gas to carry out high-temperature reduction treatment so as to improve the oxygen vacancy concentration, thereby obtaining the counter electrode of the NO sensor. The invention further provides an NO sensor and an NO detection method. The counter electrode of the NO sensor and the NO sensor prepared by the embodiment of the invention have the advantages of low cost and high anti-interference capability while keeping high oxygen reduction catalytic activity, and are particularly suitable for high-selectivity and high-sensitivity detection of NO gas in the fields of environmental monitoring, medical diagnosis and the like.

The utility model belongs to the technical field of rubber products, and particularly relates to a macromolecular rubber strip convenient to cut off, which comprises two rubber strip side edges, two side edge grooves are arranged on the side surfaces of the rubber strip side edges, a rubber strip top edge is fixedly mounted at the top of each rubber strip side edge, and a rubber strip top edge is fixedly mounted at the bottom of each rubber strip top edge. The bottom of the adhesive tape top edge is fixedly connected with the tops of the two adhesive tape side edges, top edge grooves are formed in the side faces of the adhesive tape top edge, and clamping blocks are fixedly installed on the side faces of the adhesive tape side edges. The mounting stability of the device can be improved through two clamping modes, the thickness of materials at the positions of the side edge grooves, the top edge grooves, the connecting plate grooves and the clamping groove grooves formed in the surface and the interior of the device is small, and the number of the materials is large, so that convenience can be provided for cutting-off work when the adhesive tape is cut off.

The application relates to a nano-imprinting method and device, and belongs to the technical field of nano-imprinting, and solves the problems that the existing method can cause polymer overflow outside a glass base body or insufficient filling of micro-nano structures. The method comprises the following steps: (1) spraying a polymer glue layer on one side of a soft template provided with a micro-nano pattern, so that the polymer glue layer covers the micro-nano pattern, and the thickness of the polymer glue layer is greater than the thickness of the micro-nano pattern; (2) contacting the side of the soft template sprayed with the polymer glue layer with the glass base body, performing imprinting, irradiating by using an ultraviolet lamp, removing the soft film plate with the micro-nano pattern after the polymer glue layer is solidified, and leaving the polymer glue layer with the micro-nano pattern on the surface of the glass base body, so that the glass base body with the micro-nano pattern is obtained. The method can avoid polymer overflow and incomplete structure filling.

This invention belongs to the field of polymer materials, specifically relating to a low-heat-shrinkage polymeric film for laser drilling and its preparation method. The film comprises modified polyphenylene ether resin, vinyl-containing benzoxazine resin, a specific cationic initiator, a toughening agent, and inorganic modified fillers: gadolinium lanthanum zirconate core-shell nanocrystals and lithium aluminum borosilicate nanowires. The preparation method includes: first, surface-treating the two inorganic fillers with a silane coupling agent and then dispersing them in a solvent to obtain a slurry; then, mixing this slurry with the modified polyphenylene ether resin, vinyl-containing benzoxazine resin, cationic initiator, and toughening agent to form a homogeneous adhesive; finally, coating the adhesive onto a carrier film and drying and curing it at three temperature stages from low to high to obtain the finished film. The film prepared by this method exhibits extremely low heat shrinkage during laser drilling, effectively controlling resin protrusion or indentation defects on the hole wall, and significantly improving the quality and reliability of micropore processing.

The invention discloses oxide solid electrolyte nanoparticles, a preparation method of the oxide solid electrolyte nanoparticles and application of the oxide solid electrolyte nanoparticles in a positive plate for an oxide solid electrolyte-based low-temperature battery. The oxide solid electrolyte nanoparticles are prepared by adding a novel amphiphilic molecule dispersing agent in a sanding process to realize perfect dispersion; the effect of stabilizing the nano particles is achieved; the amphiphilic molecular dispersing agent is alkane amidoxime; the positive plate comprises the following solid components; the solid component comprises a multifunctional polymer adhesive; the multifunctional polymer has at least two or more functional groups of a carboxylic acid group, a sulfonic acid group and an amidoxime amine group. According to the oxide solid electrolyte nanoparticle, the preparation method thereof and the positive plate for the oxide solid electrolyte-based low-temperature battery disclosed by the invention, the problem of agglomeration in the preparation process of the nanocrystallization solid electrolyte nanoparticle can be effectively solved, and a battery product with high stability and high low-temperature performance is obtained.

Dichlofenac-based sustained release medical plasters, in particular medical plasters based on the sodium salt of dichlofenac, whose formulation allows the active ingredient to be released continuously and at a locally therapeutically active concentration over 24 hours, and also polymer adhesive matrices (PSA) for medical plasters based on the sodium salt of dichlofenac are described.

The present application belongs to the technical field of polymer adhesive material, and particularly relates to a resin composition for bonding polyolefin material and a preparation method thereof. The present application is prepared by formula screening optimization, and the ratio of the storage modulus E'30 at 30 DEG C to the storage modulus E'130 at 130 DEG C is greater than 100. The polyurethane resin is used in combination with butadiene-styrene copolymer with butadiene content greater than 60% and butadiene-styrene-vinylpyridine copolymer, so that the adhesive with good fusion and good adhesion to polyethylene base material is obtained. The allyl silicon modified pyridine monomer, allyl silicon modified carbazole monomer and lauryl acrylate are polymerized, and the prepared acrylate polymer is used in combination with the polyurethane resin. The pyridine group, tertiary butyl group, carbazole group and silicon atom in the acrylate polymer and the dodecyl group in the lauryl acrylate are used to improve the adhesion strength to the polyolefin base material.

The application discloses an environment-friendly anti-deformation reed-wood composite shaving board and a preparation method thereof, belongs to the technical field of the board material, and the raw material of the reed-wood composite shaving board comprises wood chips, reed fibers, basalt fibers, lignin fibers, plant extracts, nano silicon dioxide, acetylated di-starch phosphate, C30-45 alkyl cetyl stearyl dimethicone cross-linked polymer, PEG-10 polydimethylsiloxane-vinyl dimethicone cross-linked polymer, methyl methacrylate cross-linked polymer, MDI adhesive and organic silicon waterproof agent in specific proportions. The components are used in cooperation, the shaving board is prepared in a directional mode, has excellent mechanical properties, is resistant to cracking and deformation, and is improved in the environmental protection performance, and the usage amount of glue is reduced. The novel formaldehyde-free adhesive and the plant extracts are adopted to replace traditional formaldehyde-containing glue and mold-proof and insect-proof agents, formaldehyde release is effectively avoided, and a healthier home decoration board selection is provided for consumers.

The application discloses a medical packaging paper and a preparation method and application thereof, and belongs to the technical field of medical packaging materials. The method comprises the following steps: according to a target impregnation amount, utilizing an impregnation parameter correlation formula representing a quantitative relationship among the impregnation amount, impregnation liquid concentration, impregnation temperature and impregnation time, reversely solving and setting impregnation parameters; immersing selected medical packaging raw paper into prepared water-based polymer latex impregnation liquid, and performing impregnation treatment according to the set impregnation parameters, and then performing drying balance treatment to obtain the medical packaging paper. The method realizes accurate controllability of the impregnation amount and process stability, eliminates interference of environmental and operation errors, and ensures consistency of paper performance between batches. Under the core premise of guaranteeing high air permeability of the medical packaging paper, the mechanical strength and heat sealing performance of the paper are greatly improved, and the comprehensive performance balance of high strength, high air permeability and easy heat sealing is successfully achieved.

Provided is a method for producing a polymer latex, comprising a step for obtaining an emulsion by emulsifying a polymer solution of a synthetic polyisoprene and / or styrene-isoprene-styrene block copolymer in water in the presence of rosin and / or a metal salt of rosin; and a step of removing the organic solvent from the emulsion, in the rosin and / or the metal salt of the rosin, the content ratio of the total of abietic acid, neoabietic acid, pinolenic acid and salts thereof is 5% by weight or less, the content ratio of dehydroabietic acid is 80-100% by weight, and the content ratio of the rosin and / or the metal salt of the rosin is 5% by weight or less. The content ratio of the rosin and / or the metal salt of the rosin in the polymer latex is more than 1.5 parts by weight with respect to 100 parts by weight of the total of the synthetic polyisoprene and / or the styrene-isoprene-styrene block copolymer contained in the polymer latex.

The invention belongs to the field of polymer adhesive materials, and particularly relates to a naringenin modified lignin phenolic resin adhesive and a preparation method thereof. The naringenin modified lignin phenolic resin adhesive is prepared from the following raw materials in parts by mass: 60 to 70 parts of formaldehyde solution, 65 to 85 parts of phenol, 6 to 14 parts of naringenin, 10 to 20 parts of lignin, 12 to 18 parts of alkali metal hydroxide and 25 to 30 parts of water. The mass concentration of the formaldehyde solution is 35%-40%. The phenolic resin adhesive is prepared by taking the biological phenol naringenin and the lignin as raw materials to replace part of phenol, so that the aim of environmental protection is fulfilled by replacing non-renewable resources with renewable resources, the bonding strength and the thermal performance of phenolic resin are improved, and the application field of the biological phenolic resin adhesive is widened.

Provided in the present invention are a polyaryl isatin-based cationic polymer, a preparation method therefor, and the use thereof. The cationic polymer is a novel polyaryl isatin scaffold synthesized by a Friedel-Crafts polycondensation reaction under the catalysis of a superacid. An isatin structural unit in the cationic polymer possesses a very large molecular volume, which can improve the dimensional stability and mechanical properties of the cationic polymer after film formation; in addition, the N site of a cation grafted onto the cationic polymer is located on the para-position of the isatin structural unit, and such a remote grafting strategy can further improve the alkali resistance stability of the cation in the film. Therefore, the cationic polymer of the present invention exhibits extremely high ionic conductivity and mechanical and chemical stability, and can thus be used as an anion exchange membrane or an anion exchange polymer adhesive for alkaline water electrolysis, alkaline fuel cells, carbon dioxide reduction and flow batteries.

The present application relates to a kind of water-based sprayable self-drying type acrylate adhesive and its preparation method, belong to polymer adhesive technical field.First, the core layer emulsion formed by hard monomer and multi-functional crosslinking monomer is prepared;Then drop the shell monomer including soft monomer, hydrophilic functional monomer and the functional monomer containing beta-dicarbonyl structure on it, form core-shell structure emulsion;Finally, by pH adjustment, add rheological modifier, film-forming aid and the coordination crosslinking agent containing polyvalent metal ions are prepared.The present application combines core-shell structure with beta-dicarbonyl / metal ion room temperature coordination crosslinking system, wherein the core layer provides rigid support, shell layer promotes rapid film formation, functional monomer and metal ion form strong coordination bond network after moisture volatilization.At the same time, self-made bifunctional monomer containing phosphate and silane significantly improves the universal adhesion of adhesive to different substrates.The prepared adhesive has excellent spray atomization, self-drying, high bonding strength and stability.

The invention discloses a hydrophobic monomer copolymer oil-displacing agent with a demulsification function and a preparation method, and relates to the technical field of oilfield chemistry. The preparation method comprises the following steps: stirring a linear block polyether demulsifier and sodium hydroxide for reaction under a high-temperature condition; the preparation method comprises the following steps: preparing a linear block polyether demulsifier, stirring the linear block polyether demulsifier with p-chloromethyl styrene which is equal to the linear block polyether demulsifier in mole to react to obtain a hydrophobic monomer A with a demulsification function, dissolving the hydrophobic monomer A, acrylamide, potassium persulfate and VA-044 in a deionized water solution to obtain a reaction solution, introducing nitrogen to remove oxygen, adding sodium hydrogen sulfite, and carrying out adiabatic reaction until the temperature of the system is not increased any more; and crushing a polymer rubber block obtained after the reaction is completed, hydrolyzing in a sodium hydroxide solution, drying, and crushing. The oil-displacing agent contains a block polyether demulsifier structural unit, has better temperature resistance compared with linear high-molecular-weight hydrolyzed polyacrylamide and common hydrophobic modified polyacrylamide, and has no negative influence on demulsification and dehydration of crude oil emulsion.

A positive electrode plate is provided that contains composite ceramic particles coated with an organic material. [Solution] The battery includes a positive electrode substrate (21) and a positive electrode slurry layer (23) applied to the positive electrode substrate, the positive electrode slurry layer being composed of a positive electrode slurry (22). The positive electrode slurry includes a plurality of positive electrode particles (10) for storing or releasing lithium ions, a polymer adhesive (12), a plurality of conductive materials (14) for increasing the conductivity of the positive electrode slurry as a whole, and a plurality of composite ceramic particles (100) for guiding lithium ions to prevent abnormal accumulation of lithium ions in the positive electrode slurry and side reactions with the positive electrode slurry. Each composite ceramic particle includes ceramic particles, a dopamine layer that coats the outer surfaces of the ceramic particles and forms primary particles, and a PVDF layer that coats the outer surfaces of the primary particles. The ceramic particles having the dopamine layer and the PVDF layer form the corresponding composite ceramic particle.

Thus, the present invention relates to an aqueous polymer latex of a copolymer obtained by aqueous emulsion polymerization of an ethylenically unsaturated monomer M, iv. 5 to 90% by weight, in particular 10 to 70% by weight, in particular 10 to 50% by weight, based on the total amount of monomer M, of monomer M1 which is 1-heptyl acrylate, v. 0 to 70% by weight, based on the total amount of monomer M, of C2-C6-alkyl esters of acrylic acid excluding tert-butyl acrylate, C8-C 20 -alkyl esters of acrylic acid and C5-C 20 -alkyl esters of methacrylic acid, and at least one monomer M2 selected from mixtures thereof, vi. 5 to 70% by weight, based on the total amount of monomer M, of tert-butyl acrylate, C1-C4-alkyl esters of methacrylic acid, C5-C 20 -cycloalkyl esters of acrylic acid, C5-C 20 -cycloalkyl esters of methacrylic acid, C5-C 20 -cycloalkylmethyl esters of acrylic acid, C5-C 20 -cycloalkylmethyl esters of methacrylic acid (the cycloalkyl in the above monomers is monocyclic, bicyclic or tricyclic, one or two non-adjacent CH2 moieties of the cycloalkyl may be replaced by oxygen atoms, the cycloalkyl may be unsubstituted or may have 1, 2, 3 or 4 methyl groups), and at least one monomer M3 selected from monovinyl aromatic monomers, methylene-gamma-butyrolactone, and mixtures thereof, comprising, where the total amount of monomers M1 and M2 ranges from 10 to 90% by weight based on the total amount of ethylenically unsaturated monomer M, and the total amount of monomers M1, M2 and M3 is at least 90% by weight based on the total amount of ethylenically unsaturated monomer M, relates to an aqueous polymer latex. The present invention also relates to a process for producing the aqueous polymer latex of the present invention. The present invention also relates to the use of these polymer latexes as binders in aqueous coating compositions and aqueous adhesive compositions, particularly as binders in aqueous coating compositions.

The utility model belongs to the technical field of rubber strips, and particularly relates to a double-rib heat-insulating polymer rubber strip which comprises a rubber strip and a heat-insulating layer, a first rubber rib is fixedly connected in the rubber strip, a second rubber rib is fixedly connected in the first rubber rib, a mounting hole is formed in the second rubber rib, and the mounting hole is communicated with the heat-insulating layer. And a connecting frame is fixedly connected to the surface of the adhesive tape, a protective layer is connected to the interior of the heat insulation layer, and a connecting block is fixedly connected to the surface of the protective layer. The heat insulation layer, the sponge layer, the heat insulation groove and the heat storage groove are matched with one another, the temperature is stored and blocked, the use requirements of different environments can be met, and the application range of the rubber strip is widened; a wear-resisting layer is installed on the periphery of the rubber strip, and the wear-resisting capacity of the rubber strip is improved through the wear-resisting layer; and the second rubber rib is fixedly connected into the first rubber rib, and the stretching resistance of the rubber strip is improved through the two rubber ribs, so that the waste of raw materials is reduced.

The application discloses a quantitative filling equipment for high polymer adhesive production and relates to the technical field of quantitative filling. The quantitative filling equipment comprises a base, and a raw material barrel is fixedly connected to the top surface of the base. The quantitative filling equipment comprises an auxiliary discharging mechanism, an auxiliary alarm mechanism and a quantitative filling mechanism. The auxiliary discharging mechanism can push and stir the high polymer adhesive, the stirring can help fully mix various components of the high polymer adhesive, prevents stratification or unevenness, and can generate appropriate air bubbles when the high polymer adhesive is stirred. In the filling process, the air bubbles can act as a transmission medium to help the high polymer adhesive smoothly enter the container. The auxiliary alarm mechanism can timely send an alarm when the rotating shaft is loose, reminding the operator of faults or abnormal conditions. Compared with the traditional quantitative filling system, the quantitative filling mechanism uses a method of cooperating a magnet with a Hall device, which has a lower cost.

Disclosed are adhesive medical films incorporating one or more cationic steroidal antimicrobial (CSA) compounds. The adhesive medical film is in the form of a tape, dressing, or sheet, configured for contact against dermal tissue to provide securement of medical devices, wound care, wound closure, and / or scar prevention. The adhesive medical film includes (i) a polymer adhesive (e.g., pressure-sensitive adhesive) in which one or more CSA compounds are distributed, and (ii) optionally, a backing substrate upon which the polymer adhesive is disposed. Examples of polymer adhesives include polyacrylate and silicone adhesives. The adhesive medical films, when used, reduce microbial colonization and / or growth, both on the films during storage and at a dermal site, as compared to the same adhesive medical film without incorporated CSA compounds.

The invention relates to the technical field of high-voltage insulation, and particularly discloses a high-voltage bushing with a self-cleaning hydrophobic surface and a preparation method thereof.The preparation method comprises the steps that the outer insulation surface of the high-voltage bushing is subjected to cleaning and activation pretreatment; a coating composition containing a low-surface-energy polymer adhesive and a functional filler subjected to hydrophobic treatment is uniformly applied to the surface of the pre-treated sleeve in a spraying manner and the like; and finally, a firmly combined functional coating is formed on the surface of the sleeve through curing treatment. The invention further provides the high-voltage bushing prepared through the method, the pollution flashover resistance of the bushing can be remarkably improved, the surface self-cleaning effect can be achieved by means of rain wash, the operation and maintenance workload is greatly reduced or eliminated, and the high-voltage bushing is particularly suitable for power equipment operating in the outdoor high-pollution and high-humidity severe environment.