2668results about "Adhesives" patented technology

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.

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 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.

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 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.

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.

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 relates to the technical field of fiber reinforcement, and discloses a melt impregnation weaving process of a flame-retardant fiber reinforced thermoplastic filling rope, the melt impregnation weaving process comprises fiber pretreatment, melt impregnation, multi-stage stretching setting, weaving forming and post-treatment, through the synergistic effect of plasma activation and nano flame-retardant pretreatment, the fiber surface activity and the flame retardant binding force are improved, and the flame-retardant fiber reinforced thermoplastic filling rope is obtained. Meanwhile, a segmented temperature control melt impregnation process is combined, so that the resin is ensured to form a uniform and complete coating layer on the surface of the fiber monofilament, the problems of weakening of interface bonding and non-uniform flame-retardant distribution in a traditional process are solved, and the flame-retardant efficiency and mechanical reliability of the filling rope are improved; a dynamic mathematical model of the tension gradient and the traction speed is established, the fiber crystallization orientation process is controlled, and the internal stress concentration phenomenon is eliminated; in combination with a dynamic tension compensation mechanism during weaving forming, the weaving tightness of the coating layer is corrected in real time, and the dimensional stability and the anti-fatigue performance of the filling rope under the complex load are guaranteed.

The invention provides an adhesive based on a lipoic acid compound and a nitrogen heterocyclic compound as well as a preparation method and application of the adhesive, and belongs to the field of material chemistry. The adhesive disclosed by the invention is prepared from a lipoic acid compound, a nitrogen heterocyclic compound and absolute ethyl alcohol, the azacyclo-compound is at least one of an azacyclo-naphthenic compound or an azacyclo-crown ether compound. The adhesive disclosed by the invention is simple in raw material composition and preparation method, and the obtained adhesive has the advantages of high bonding strength, excellent underwater bonding performance, wide applicable materials, high bonding speed, environment friendliness, recoverable raw materials and the like, and shows huge application potential.

Novel compositions and systems for closure of wounds with antimicrobial effectiveness are disclosed. The compositions provide devices of improved flexibility and elasticity and are readily applied to wound sites or over wound closure devices. The present invention is also directed to a novel platinum catalyst for use in such compositions. The catalyst provides for rapid curing on topical surfaces such as skin and bonds to such surfaces in about 2-5 minutes.

An electronic device may include: a housing including a first housing, and a second housing accommodating at least a portion of the first housing and guiding a sliding movement of the first housing; a flexible display including a first display area connected to the first housing, and a second display area extending from the first display area; and a display support member supporting at least a portion of the second display area, wherein the display support member includes a plurality of bars which are arranged side by side and include a first processing structure formed on a side surface, wherein the plurality of bars may include: a first bar including a processing structure having a protrusion or groove shape; and a second bar at least partially facing the processing structure and including a processing structure corresponding to the shape of the processing structure.

The embodiment of the invention provides a polymer binder, a preparation method thereof and an all-solid-state sulfide lithium battery. The polymer binder is a modified polyvinylidene fluoride-trifluorochlor oethylene copolymer, and chlorine in the modified polyvinylidene fluoride-trifluorochlor oethylene copolymer is partially or completely substituted by bromine and / or iodine; in the modified polyvinylidene fluoride-trifluorochlor oethylene copolymer, the molar ratio of a corresponding repeating unit of polyvinylidene fluoride to a corresponding repeating unit of trifluorochlor oethylene is (1-9): (9-1); in the modified polyvinylidene fluoride-trifluorochlor oethylene copolymer, the weight of chlorine is a, the weight of bromine and / or iodine is b, and b / (a + b) * 100% is equal to 1%-100%. The technical effect of improving the cycling stability and safety of the battery is achieved, and then the technical problems that when a traditional binder is applied to the all-solid-state sulfide lithium battery, the interface is unstable, the binding power is insufficient, and the traditional binder reacts with electrolyte are solved.

The invention discloses a UV curing adhesive for coating a low-refractive-index optical fiber and a processing method thereof, belongs to the technical field of adhesive preparation, and is used for solving the technical problem that the refractive index and the damp-heat resistance of the UV curing adhesive for coating the optical fiber in the prior art need to be further improved. The preparation method comprises the following steps: introducing a low-refractive-index hybrid siloxane prepolymer, a multi-component interface bonding prepolymer and a modified branched polyester prepolymer into a system together, and constructing a compact and uniform organic-inorganic three-dimensional network in a curing process by utilizing silica condensation, interface chemical bonding and a flexible chain segment cross-linking reaction, the low-refractive-index hybrid siloxane prepolymer endows a film layer with a stable refractive index, the multi-component interface bonding prepolymer enhances the binding force of a base material, the modified branched polyester prepolymer improves stress buffering and toughness, and the obtained cured film is low in refractive index, firm in interface bonding and small in mass change in a humid and hot environment and shows excellent optical stability and long-term reliability.

The invention provides a preparation method of a functionalized polyolefin elastomer. The preparation method comprises the following steps: carrying out polymerization reaction on ethylene and alpha-olefin in the presence of a copolymerization catalyst and a cocatalyst, and adding a silane coupling agent and an initiator at an outlet of a reactor to obtain a reaction material; devolatilizing the reaction material, adding a quenching agent, and terminating the reaction; and introducing the material into a screw extruder, and granulating to obtain the functionalized polyolefin elastomer. According to the preparation method, polar functional groups are introduced in the production process of the polyolefin elastomer, the obtained functionalized polyolefin elastomer product can accelerate the absorption rate of POE particle photovoltaic adhesive film auxiliaries, and the problem of auxiliary migration of EPE adhesive films is remarkably solved.

The invention discloses a phosphate ester type composite binder for a sulfide battery, the phosphate ester type composite binder comprises a solute and a solvent, the solute comprises the following components in percentage by mass: 49.75%-88.5% of a binder, 9.5%-49.75% of phosphate ester and 0.45%-1.96% of silanol; the solvent is a non-polar solvent, and the mass ratio of the solute to the solvent is 1%: (10%-90%); the preparation method comprises the following steps: S1, placing the binder in a non-polar solvent, and heating and stirring until the binder is completely dissolved to obtain a solution A; s2, mixing a silane coupling agent with absolute ethyl alcohol, adjusting the pH value with acetic acid, and stirring to generate silanol; s3, silanol is added into the solution A, so that one end of silanol reacts with active hydrogen of the binder for bonding; and S4, adding phosphate into the solution A, so that the other end of the silanol is combined with a group of the phosphate to obtain a reaction solution with a binder-silanol-phosphate structure. According to the invention, stable combination of the binder and phosphate is realized through a silanol-mediated grafting structure, and the interface stability, the ionic conductivity and the mechanical strength are 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 present disclosure relates to a thermoplastic fiber web structure (2a, 2b, 2c, 2d), which forms a support structure through fiber filaments (21a, 21h, 21i, 21k, 21l, 21m, 21n, 21q) that are melt-bonded together, the fiber filaments being formed from a thermoplastic elastomer material. The present disclosure further relates to an automobile interior part comprising a thermoplastic fiber web structure as described above and a sleeve and / or fabric (1a, 1b, 1c, 1d) fastened to the thermoplastic fiber web structure. The thermoplastic fiber web structure forms a support structure by melt extrusion of a thermoplastic elastomer material into a three-dimensional network structure, which has high resilience and recyclability. The automobile interior part, at the same time of ensuring support and comfort, achieves environmental protection, breathability and light weight. In particular, the thermoplastic material is subjected to a physical reaction rather than a chemical reaction during the melt extrusion process, so that the stability in the preparation process is better, and the product can be smoothly and controllably made. In addition, considering that conventional sleeve foaming fastening form cannot be applied to the thermoplastic fiber web structure, a completely novel fastening form is provided for the automobile interior part to match the wrapping of the thermoplastic fiber web structure.

The invention discloses a self-repairable lipoic acid-based underwater binder and a preparation method thereof, and relates to the technical field of polymer binders. The binder comprises the following raw material components: lipoic acid and vinyl cyclosiloxane, the lipoic acid and the vinyl cyclosiloxane are subjected to chemical crosslinking through a solvent-free thermal / light synergistic polymerization process, and the underwater binder with good self-repairing performance and binding performance is prepared. The preparation method disclosed by the invention is simple and environment-friendly in process, and the prepared lipoic acid-based underwater binder has firm binding property, good universality and excellent self-repairing characteristic, and can realize rapid and stable binding underwater.

The invention discloses a binder and a preparation method thereof, a negative pole piece and a battery, and belongs to the technical field of batteries. The binder provided by the invention is a copolymer of linear polyamide acid and a diamino-containing aromatic compound; wherein the linear polyamide acid is a copolymer of a dianhydride monomer and a diamine monomer. The binder can alleviate the problem of volume expansion of the silicon-carbon negative electrode so as to alleviate the problem of capacity fading, and also can alleviate the capacity deterioration caused by the falling of active substances in the circulation process of the pole piece; and the conductivity of the pole piece is improved to a certain extent, and the dynamic performance of the battery is facilitated.

A plant marker with integrated insect monitoring capability. The plant marker includes a base layer having a rectangular segment and a pointed segment configured for soil insertion. The rectangular segment includes an upper surface coated with adhesive material for capturing insects and an underside surface formed of markable material for receiving plant identification information. A removable liner covers the adhesive material prior to use. The device enables simultaneous plant identification and pest assessment.

Disclosed are biodegradable polyesters. Methods for their production and adhesives prepared therefrom. The polyesters comprise a plurality of adducts of two dicarboxylates or anhydrides with a compound having at least two fused ring heterocycles containing a heteroatom and a hydroxyl group pendant from each ring, the adducts are linked by the residues of one or more diols of alkylene diols or polyoxyalkylene diols and a plurality of one or more aliphatic diols containing a pendant carboxylate group. Ester groups are formed by reaction of the hydroxyl groups of the fused ring compounds and the diols with the carboxylate groups of the dicarboxylates and the composition contains pendant carboxylate groups, wherein the composition contains two dicarboxylates, a first dicarboxylate or an anhydride containing between the carboxylate or carboxyl groups a C1-8 hydrocarbylene group and a second dicarboxylate containing between the carboxylate groups a C9-60 hydrocarbylene group.

The invention discloses N-substituted maleimide binary copolymer resin, a temporary bonding adhesive and a resin cured product. The N-substituted maleimide binary copolymer resin disclosed by the invention comprises an N-substituted maleimide type unit and an alkene type monomer unit. The N-substituted maleimide binary copolymer resin disclosed by the invention contains an imide ring structure, so that a cured resin product disclosed by the invention has a relatively high glass transition temperature. When the N-substituted maleimide binary copolymer resin is used in the temporary bonding adhesive, the glass-transition temperature of a material after the temporary bonding adhesive is hardened can be improved, so that the temporary bonding adhesive with the N-substituted maleimide binary copolymer resin has the advantages that the hardness of the temporary bonding adhesive is improved, and the service life of the temporary bonding adhesive is prolonged. And the hardened material also has relatively high binding force with the chip at high temperature, so that the chip can be prevented from shifting under high-temperature conditions such as plastic package and the like.

The utility model discloses a machine washable wool blended yarn which comprises a core yarn and a composite wrapped yarn spirally wrapped on the outer side of the core yarn. The composite fasciated yarn comprises a bi-component filament and a wool blended yarn spirally wrapping the outer side of the bi-component filament. The bi-component filament comprises a skin layer and a core layer. The core layer is made of high-melting-point polyester, and the skin layer is made of low-melting-point polyester. According to the machine washable wool blended yarn, the high-melting-point dacron and the low-melting-point dacron are used, and the low-melting-point dacron can be bonded with reference fibers after being subjected to heat treatment, so that the wool blended yarn has a machine washable effect.

The invention discloses a high-temperature-resistant benzimidazolone polyamide imide battery binder as well as a preparation method and application thereof, and belongs to the technical field of battery materials. The high-temperature-resistant benzimidazolone polyamideimide battery binder with uniformly distributed amide segments and imide segments is prepared through a method for activating aromatic diamine on one side of trimethylchlorosilane and changing the activity of amino groups on the two sides, the comprehensive performance of the high-temperature-resistant benzimidazolone polyamideimide battery binder is excellent, the defects that a traditional binder is poor in heat resistance and insufficient in chemical stability are overcome, and the service life of the high-temperature-resistant benzimidazolone polyamideimide battery binder is prolonged. The introduction of high-polarity groups can improve the wettability and ion transmission capability of the electrolyte, improve the solubility of the electrolyte so as to facilitate electrode forming, and can also form strong chemical bonds or physical adsorption with positive and negative inorganic active materials during application, thereby reducing the structural damage in the cycle process and improving the electrochemical performance of the battery. The lithium ion battery electrode can keep a stable structure in a high-temperature environment, the thermal runaway risk caused by high temperature is remarkably reduced, and the application requirements of the lithium ion battery in a fast charging or high-temperature energy storage scene are well met.