3570results about "Adhesives" patented technology

An electronic device for long-term adhesion to a mammal includes a housing with an electronic component. The electronic device may include a first wing and a second wing, each being integrally formed with the housing. An electrode is positioned on a bottom surface of each of the wings, the electrodes electrically connected to the electronic component. An adhesive layer is provided for adhesion to a surface of the mammal. The adhesive layer may cover a portion of the bottom surfaces of the wings but generally does not cover the electrode or a bottom surface of the housing. A method of applying an electronic device to a mammal includes removing first and second adhesive covers from first and second wings of the electronic device to expose an electrode and an adhesive coated on a bottom surface of each wing.

The present disclosure provides embodiments of a tile including at least one reinforced porcelain tile product having a first component including porcelain material and having a top surface with a first surface area, a bottom surface opposite the top surface, and a plurality of peripheral side portions, and a second component including a structural material and having top surface, a bottom surface, and a plurality of peripheral side portions. In embodiments, the second component comprises a structural foam material having a breaking strength greater than a breaking strength of the porcelain material of the first component, a fracture toughness greater than a fracture toughness of the porcelain material of the first component, and a young's modulus value lower than a young's modulus value of the porcelain material of the first component. The at least one reinforced porcelain tile product may be configured to meet or exceed the standard for Residential and Light Commercial Use Ceramic Floor Tile as measured according to ASTM C627-18.

An electronic device for long-term adhesion to a mammal includes a housing with an electronic component. The electronic device may include a first wing and a second wing, each being integrally formed with the housing. An electrode is positioned on a bottom surface of each of the wings, the electrodes electrically connected to the electronic component. An adhesive layer is provided for adhesion to a surface of the mammal. The adhesive layer may cover a portion of the bottom surfaces of the wings but generally does not cover the electrode or a bottom surface of the housing. A method of applying an electronic device to a mammal includes removing first and second adhesive covers from first and second wings of the electronic device to expose an electrode and an adhesive coated on a bottom surface of each wing.

Disclosed is a coreless roll of a tissue paper product having a first end and a second end, and a web of tissue paper product being wound such as to define a central inner hole with the first end located on the outer side and the second end located at the inner hole, the product including a bonded first ply and a second ply, a grammage of the product being 35 to 55 g / m2, and having a Geometric Mean Tensile strength of at least 200 N / m, the first ply and the second ply being made of Conventional Wet Press (CWP) paper and embossed to be nested, the coreless roll having an outer diameter of 95 to 150 mm, an inner hole diameter of 20 to 50 mm, and a density of the coreless roll of 70 to 90 kg / m3, a caliper ratio of the roll of 40% to 70%.

The invention provides a PHA dispersion emulsion as well as a preparation method and application thereof, and belongs to the field of high polymer materials. The invention aims to solve the technical problem that the prior art cannot simultaneously meet the requirements of the polyhydroxyalkanoate water dispersion system on extremely low temperature natural film-forming property, excellent comprehensive performance after film formation and long-term storage stability. The method is characterized in that a polyhydroxyalkanoate polymer with specific molecular weight and polydispersity index range, a coalescing agent 2, 2, 4-trimethyl-1, 3-pentanediol monoisobutyrate with a specific chemical structure and a specific type of aliphatic polyisocyanate cross-linking agent compatible with water dispersion are strictly limited and combined. Through the synergistic effect generated by the unique ternary combination, the minimum film forming temperature of the prepared emulsion can be reduced to 6-10 DEG C, a film can be naturally formed without hot pressing, and the formed film has excellent mechanical property, water resistance and adhesive force and has excellent storage stability of at least one year.

Disclosed is a coreless roll of a tissue paper product having a first end and a second end, and a web of tissue paper product being wound such as to define a central inner hole with the first end located on the outer side and the second end located at the inner hole, the product including a bonded first ply and a second ply, a grammage of the product being 35 to 55 g / m2, and having a Geometric Mean Tensile strength of at least 200 N / m, the first ply and the second ply being made of Conventional Wet Press (CWP) paper and embossed to be nested, the coreless roll having an outer diameter of 95 to 150 mm, an inner hole diameter of 20 to 50 mm, and a density of the coreless roll of 70 to 90 kg / m3, a caliper ratio of the roll of 40% to 70%.

The invention provides a comb-shaped polymer binder, a pole piece and a battery, the comb-shaped polymer binder comprises an acrylate main chain, a flexible soft segment, a polar hard segment and a functional chain segment, the flexible soft segment, the polar hard segment and the functional chain segment are respectively grafted on the acrylate main chain, the flexible soft segment comprises an ether chain segment and / or an ester chain segment, the polar hard segment comprises a polar group and / or a first heteroaromatic ring group, and the functional chain segment comprises a functional group and a second heteroaromatic ring group. The functional chain segment comprises an aromatic ring group containing a pi-conjugated structure and / or a second heteroaromatic ring group containing a pi-conjugated structure. The comb-shaped binder adopts a structural design of'hard section anchoring + soft section buffering + functional side chain ', is helpful for enabling the binder to have high peel strength, stress buffering and electron conduction capabilities at the same time, is compatible with an existing wet coating-rolling process, is helpful for improving the peel strength and prolonging the cycle life of an electrode plate when being used for preparing the electrode plate, and is beneficial for improving the service life of the electrode plate. And the rate capability of the battery is improved.

An electronic device for long-term adhesion to a mammal includes a housing with an electronic component. The electronic device may include a first wing and a second wing, each being integrally formed with the housing. An electrode is positioned on a bottom surface of each of the wings, the electrodes electrically connected to the electronic component. An adhesive layer is provided for adhesion to a surface of the mammal. The adhesive layer may cover a portion of the bottom surfaces of the wings but generally does not cover the electrode or a bottom surface of the housing. A method of applying an electronic device to a mammal includes removing first and second adhesive covers from first and second wings of the electronic device to expose an electrode and an adhesive coated on a bottom surface of each wing.

The invention discloses a PHA nano aqueous suspension as well as a preparation method and application thereof, and belongs to the field of high polymer materials and processing and application thereof. The suspension takes PHA resin as a dispersion phase and water as a continuous phase, the total solid content is 23-65wt%, the PHA resin accounts for 80-98.5 wt% of the total solid, and the assistant accounts for 1.5-20wt% of the total solid. The average particle size of PHA particles is 30-140 nm, D90 is smaller than or equal to 150 nm, the polydispersity index PDI is smaller than 0.3, and when the pH is 6.5-7.5, the absolute value of Zeta potential is larger than 30 mV. The preparation method comprises the following steps: pretreating the PHA raw material, preliminarily dispersing in a water phase under the action of the dispersion stabilizing aid, and carrying out high-energy homogenization treatment. The obtained suspension is stable in storage, has excellent barrier property and mechanical property after film formation, and is suitable for preparing biodegradable food packaging barrier coatings, water-based environment-friendly coatings and water-based adhesives.

Disclosed is a coreless roll of a tissue paper product having a first end and a second end, and a web of tissue paper product being wound such as to define a central inner hole with the first end located on the outer side and the second end located at the inner hole, the product including a bonded first ply and a second ply, a grammage of the product being 35 to 55 g / m2, and having a Geometric Mean Tensile strength of at least 200 N / m, the first ply and the second ply being made of Conventional Wet Press (CWP) paper and embossed to be nested, the coreless roll having an outer diameter of 95 to 150 mm, an inner hole diameter of 20 to 50 mm, and a density of the coreless roll of 70 to 90 kg / m3, a caliper ratio of the roll of 40% to 70%.

The invention discloses a multi-layer composite barrier film and a production process thereof, and belongs to the field of polymer composite materials. Aiming at the problems of obvious performance attenuation, poor interlayer binding force and low step-by-step compounding process efficiency of a barrier film in a humid and hot environment in the prior art, the invention provides a five-layer asymmetric structure design: an outer layer, a bonding layer, a barrier layer, a bonding layer and an inner layer. Wherein the barrier layer is formed by blending EVOH and MAH-PA6 and cooperating with nano montmorillonite to form a multi-barrier network, so that the oxygen permeability is smaller than or equal to 0.3 cm / (m.24h. 0.1 MPa), and the water vapor permeability is smaller than or equal to 1.5 g / (m.24h). The production process innovation comprises five-layer co-extrusion melt flow rate ratio control, three-roller gradient cooling and a bidirectional plasma processing technology, the continuous production speed is larger than or equal to 120 m / min, and the interlayer peeling strength is larger than or equal to 8 N / 15 mm. The barrier property stability is remarkably improved.

The invention discloses a low-temperature self-repairing polysiloxane material based on coordinate bonds and a preparation method and application thereof, and belongs to the field of novel materials.The low-temperature self-repairing polysiloxane material is prepared through the steps that amino of bis (3-aminopropyl)-terminated poly (dimethyl siloxane) and aldehyde group of an aldehyde group small molecule compound are subjected to a Schiff base condensation reaction, and a prepolymer is obtained; and adding metal ions into the prepolymer to carry out a coordination reaction to form a reversible metal coordination bond, and removing the solvent after the reaction is finished to obtain the low-temperature self-repairing polysiloxane material based on the coordination bond. The formed three-dimensional structure contains a large number of reversible metal coordination bonds, so that the rigidity and the mechanical strength of the material are enhanced, and meanwhile, the good self-repairing performance and the machinable recoverability of the material are ensured. The coordination bond-containing self-repairing polysiloxane material can be applied to the fields of adhesives, sealants, rapid self-repairing coatings, composite materials and the like.

The invention belongs to the technical field of film materials, and particularly relates to a lower supporting film for a flexible folding display screen and a preparation method of the lower supporting film. The supporting film sequentially comprises a protective film layer, a stainless steel base material layer, an adhesive layer and a release film layer from top to bottom; wherein the adhesive layer is prepared by coating a release film with modified organic silica gel liquid, drying and curing. The ultra-thin stainless steel is used as the base material layer, can resist external force impact and scraping, is low and stable in thermal expansion coefficient, can reduce the influence of environment temperature and humidity on the size of the supporting film, and guarantees the structural consistency of the screen module in long-term use; and through multi-component composite modification of polyurethane-thiazole-organic silicon, the peeling strength of the adhesive layer and stainless steel and the bending frequency of the supporting film are improved, and the service life of the supporting film is prolonged.

The present disclosure provides high bulk tissue products, as well as an apparatus and methods for manufacturing the same. The tissue products provided herein not only have high bulk, but they also have improved surface smoothness, particularly compared to tissue products of similar basis weights.

The invention relates to the technical field of lithium battery positive pole pieces, in particular to a hyperbranched polyamide binder and a preparation method and application of a positive pole piece. The hyperbranched polyamide binder is a high-molecular polymer prepared from a diamine monomer, a polyamine monomer and a diacid monomer through a condensation polymerization reaction; the positive pole piece is obtained by mixing, pulping, coating and drying a positive pole material, a conductive agent and a binder; and the number-average molecular weight of the hyperbranched polyamide binder is 1.5 to 150 thousands. The positive pole piece comprises the hyperbranched polyamide binder disclosed by the invention. The positive pole piece is applied to the lithium battery. According to the hyperbranched polyamide binder, aliphatic raw materials are subjected to polycondensation, the cost of the raw materials is low, the process is simple, production is easy, and good economic benefits are achieved; the pole piece is good in flexibility, thick coating is not prone to cracking, and slurry is good in stability and easy to process; the battery is high in energy density and long in cycle life and has a relatively good application prospect.

The invention discloses a lignin-monofluoroacrylic polymer high-voltage lithium ion binder as well as preparation and application thereof. The binder is prepared from lignin, polyfluoroacrylic acid and copolymer thereof through esterification reaction. The preparation method comprises the following steps: firstly, preparing a monofluoroacrylic polymer through free radical polymerization, and then grafting lignin into a side chain of the monofluoroacrylic polymer by utilizing esterification reaction to form a three-dimensional network structure; the binder has the free radical scavenging capacity of lignin, and the characteristics of chelating transition metal ions and stabilizing a CEI interface of polymonofluoroacrylic acid. Compared with a commercial PVDF (Polyvinylidene Fluoride) binder, the binder material disclosed by the invention has the advantages that the adhesive force is improved by 5.6 times, and the voltage resistance reaches 4.93 V which is obviously higher than that of PVDF (4.58 V). Therefore, the binder can be used for preparing the positive electrode of the high-voltage lithium ion battery, and has remarkable performance advantages.

The present invention concerns a process for improving the stability of polyisobutenes, especially the stability of highly reactive polyisobutenes under thermal or oxidative stress, such as under storage conditions.

A coating composition for a substrate, which includes: a microcrystalline cellulose composition, at least one silane, at least one acid catalyst, a liquid dispersion phase, and optionally at least one inorganic filler. Also, the use of this composition for the release coating of a substrate such as a paper surface or a metal surface. Finally, an article having at least one surface is coated with the coating composition.

The disclosed subject matter relates compounds of structure (I), and polymers of structure (II) having a polydispersity ranging from 1 to about 1.1, compositions comprising said polymers and a spin casting solvent, the process of forming a pinning layer selectively on metal with said composition and the process of using said pinning layers to affect chemoepitaxy directed self-assembly of an overlying block copolymer, and the subsequent process of pattern transfer of this self-assembled layer into a substrate by etching.

The invention discloses a conductive yarn and a preparation method thereof, relates to the technical field of functional textile materials and composite conductive fiber preparation, and can solve the problems that an existing conductive yarn is poor in flexibility, insufficient in durability, prone to oxidation failure and difficult to integrate multiple functional performances. The preparation method comprises the following steps that S1, PBO yarn is soaked in a dopamine solution, a PDA modification layer is formed on the surface of the PBO yarn through a polydopamine self-polymerization reaction, and the PDA modification layer provides a chelation site and a bonding interface for metal deposition; s2, the PDA modified PBO yarn obtained in the step S1 is subjected to chemical silver plating, silver is deposited on a PDA modified layer to form a continuous conductive layer, and conductive PBO core yarn is prepared; s3, carrying out melt blending and granulation on the low-dielectric-constant flame-retardant filler and thermoplastic polymer resin to prepare flame-retardant composite particles; and S4, spinning by taking the conductive PBO core yarn prepared in the step S2 as a core layer and a melt formed by melting the flame-retardant composite particles prepared in the step S3 as a skin layer to prepare the conductive yarn.

The invention relates to a fluorine-containing binder for a sulfide all-solid-state battery and a preparation method and application thereof.The binder is formed by copolymerizing isoprene and lithium perfluorovinyl ether sulfonate, specifically, the lithium perfluorovinyl ether sulfonate, a chelating agent, an emulsifying agent, ferrous sulfate, a reducing agent and an acid-base buffering agent are dissolved in water, cooling is conducted in the inert atmosphere, and the fluorine-containing binder for the sulfide all-solid-state battery is obtained. And adding isoprene, an initiator and a molecular weight regulator, and carrying out polymerization reaction to obtain the fluorine-containing binder. The isoprene can enhance the solubility of the lithium perfluorovinyl ether sulfonate fragment in the non-polar solvent, so that the whole polymer is dissolved in the non-polar solvent; the perfluorovinyl ether lithium sulfonate has a large space proportion of fluorocarbon groups, and has a shielding effect on hydrocarbon groups on isoprene, so that the stability of the whole polymer can be improved. The fluorine-containing binder prepared by the preparation method disclosed by the invention is a binder with high elasticity, high ionic conductivity and high stability.

The invention provides a battery positive plate and a battery. The battery positive plate comprises a positive active material and a binder, and the binder is a product obtained by crosslinking a phenylboronic acid compound modified polyacrylic acid compound and a hydroxylated carbon nanotube. According to the battery positive plate, a three-dimensional conductive network binder based on crosslinking of a phenylboronic acid compound modified polyacrylic acid compound and a hydroxylated carbon nanotube is adopted, and the binder utilizes a multi-crosslinking mechanism between a phenylboronic acid group and the hydroxylated carbon nanotube (OHCNT) and between the phenylboronic acid group and positive active particles; a boroxane structure is formed through self-crosslinking of the boron oxide and the phenylboronic acid, and a special three-dimensional conductive network structure is formed, so that the mechanical strength and the conductivity of the binder and the cycle performance and the stability of the battery are improved; the discharge performance and the rapid charge-discharge capability of the battery can be improved, and the consumption of electrolyte can be reduced, so that the cycle life of the battery is prolonged.

Disclosed are multi-ply tissue products, particularly creped and through-air dried tissue products, having cloth like properties, such as good drapability and durability. For example, the products generally comprise two plies and have a geometric mean slope (GM Slope) less than about 10.0 kg and a geometric mean tensile energy absorption (GM TEA) of about 15 g·cm / cm2 or greater. In certain instances, the tissue products also have a low degree of stiffness, such as a Stiffness Index less than about 5.00. The tissue products may be prepared from webs manufactured by a print-crepe process that deposits a latex polymer on at least one of the outer surfaces of the tissue web.

The invention belongs to the technical field of lithium ion batteries, and discloses a carboxyl-containing copolyimide binder, a lithium ion battery silicon negative electrode, a lithium ion battery and a preparation method, and polyamide acid is prepared by using a carboxyl-containing diamine monomer, an amino-terminated long aliphatic chain diamine monomer and an anhydride monomer as raw materials; and carrying out chemical imidization, precipitation and washing on the polyamide acid to obtain the carboxyl-containing copolyimide binder. The prepared carboxyl-containing copolyimide binder has good solubility in a conventional electrode manufacturing solvent, and the solution system of the obtained carboxyl-containing copolyimide binder is uniform and stable. When the carboxyl-containing copolyimide binder is applied to preparation of a silicon negative electrode of a lithium ion battery, the carboxyl-containing copolyimide binder can generate dual covalent interface interaction with silicon active material particles and conductive material particles, so that the migration efficiency of lithium ions in an electrode system is remarkably improved, the transmission dynamics performance is enhanced, and the high-rate charge-discharge capacity of the battery is effectively improved.

Disclosed is a web handling system that includes a spindle having a spindle magnetic coupling portion and a roll core configured for receiving the spindle for mounting thereon and having a roll magnetic coupling portion, wherein the spindle and roll magnetic coupling portions are configured for magnetically attracting each other to hold the roll on the spindle.

Provided are a display device and a method of manufacturing the same. A display device comprises a display panel comprising a first area comprising a display area, a second area spaced apart from the first area, and a bendable third area between the first area and the second area. A bonding layer is in the first area, the second area, and the third area and located on a lower surface of the display panel. A panel bottom cover is in the first area and bonded to the bonding layer, and a support film is in the second area and bonded to the bonding layer. A gap separating the panel bottom cover and the support film from each other is in the third area.

The invention discloses a sulfydryl silicon resin, a UV light-cured organic silicon optical adhesive as well as a preparation method and application thereof. The optical adhesive comprises sulfydryl silicon resin, vinyl polysiloxane and a photoinitiator, the molar ratio of sulfydryl in the sulfydryl silicon resin to vinyl in the vinyl polysiloxane is (1.2-1.5): 1; the molar ratio of vinyl in the vinyl polysiloxane to the photoinitiator is 1: (0.3-1.8). The optical adhesive disclosed by the invention can be subjected to rapid photocuring based on a click reaction of sulfydryl-vinyl, the preparation method of the optical adhesive does not need a solvent, and compared with conventional OCA, the optical adhesive has a certain filling advantage in the aspect of a full-lamination process, also has relatively high binding power, relatively low stress relaxation rate and excellent creep recovery rate, and can be used for preparing the optical adhesive. Therefore, the optical adhesive is especially suitable for flexible display application scenes represented by folding screens.

A photocurable silicone composition is disclosed. A cured product of the composition is also disclosed. The photocurable silicone composition comprises: (A) an organopolysiloxane having at least one aryl group with 6 to 12 carbons and at least one alkenyl group with 2 to 12 carbons in a molecule; (B) an organic compound having at least two ether bonds and at least one aliphatic carbon-carbon double bond in a molecule; (C) a thiol group-containing organic compound comprising; (C1) an organic compound having two thiol groups in a molecule, and (C2) an organic compound having at least three thiol groups in a molecule; and (D) a photoradical initiator. The composition generally suppresses crack and delamination of a cured product laminated between two substrates after thermal aging.

The invention discloses a binder system with an electron and ion conduction function and application thereof. The binder system comprises 1) a cross-linking agent containing an ethyoxyl unit and 2) a polymer with electron conduction or electron and ion conduction functions, and the cross-linking agent and the polymer respectively have groups which are cross-linked under light and / or heat conditions; when in use, light and / or heat are utilized to initiate a cross-linking reaction, so that the polymer is cross-linked in situ by the cross-linking agent, and a three-dimensional binder network structure for ion and electron transmission is formed. According to the binder system disclosed by the invention, the polymer is subjected to in-situ crosslinking by utilizing the cross-linking agent to form a three-dimensional binder network structure, the polymer is used as a conjugated main chain for providing electron transmission, and the cross-linking agent is used as a flexible cross-linking chain segment beneficial to ion diffusion, so that the mechanical property of the binder is improved to the greatest extent while the high adhesive force of the binder is ensured; enough mechanical properties are provided for a battery pole piece to maintain the integrity of an electrode, so that the cycling stability of the high-specific-capacity negative electrode material is improved.

The invention discloses a preparation method of a natural latex grafted lignin biological adhesive. The preparation method comprises the following steps: dissolving lignin in deionized water to prepare a 15wt% lignin solution; adding 1 part of 2wt% ammonium persulfate solution, heating to 60 + / -2 DEG C, and stirring at the speed of 300-330rpm for 45 minutes to obtain a lignin and ammonium persulfate mixed solution; adding 15 parts of the mixed solution into 100 parts of natural latex, heating to 60 + / -2 DEG C, stirring at the speed of 300-330rpm for 3 hours to promote graft polymerization reaction of the lignin and the natural latex, and cooling at room temperature to obtain the natural latex grafted lignin biological adhesive. According to the invention, natural latex and lignin are taken as main raw materials, harmful substances common in the traditional petroleum-based adhesive are not contained, and the adhesive is friendly to human body and environment, safe to use, simple and feasible in preparation process, wide in raw material source and easy for large-scale production, is suitable for multiple fields of wood processing, furniture manufacturing, textile printing and dyeing and the like, and has a wide market prospect.