39results about "Polysaccharide adhesives" patented technology

The disclosure generally relates to poly alpha-1,3-glucan compositions and articles containing them. In particular interest is comprising poly alpha-1,3-glucan ester derivatives. The poly alpha-1,3-glucan derivatives are useful in thermoprocesses and in particular, injection molding processes.

The present application provides self-adhesive false eyelashes with self-adhesive natural glue. A gelatin-carrageenan-Pullulan composite formula is utilized to create a self-adhesive natural glue that exhibits optimal viscosity. Therefore, this formulation imparts a strong self-adhesive effect to false eyelashes while maintaining low allergenicity. Consequently, the resulting false eyelashes are particularly well-suited for individuals with sensitive skin. The self-adhesive natural glue, which is formulated using a gelatin-carrageenan-Pullulan system, possesses notable superiorities in terms of adhesive performance, compatibility, reusability, safety, rebound resilience, skin adhesion, and other aspects for the self-adhesive false eyelashes within the scope of the present application. This innovation offers users a more convenient, comfortable, safe, and environmentally friendly makeup experience.

The invention relates to the technical field of adhesives, in particular to a paper tube adhesive and a preparation method and application thereof. The paper tube adhesive is prepared from the following raw materials in parts by weight: 80-100 parts of an adhesive component A, 20-25 parts of an adhesive component B, 0-5 parts of an adhesive component C and 50-65 parts of water. The paper tube adhesive prepared by the invention is relatively good in water solubility and safe to use, and does not cause any environmental pollution; the stickiness is high, bonding can be carried out at the moment of paper contact, and the forming quality of paper tubes is guaranteed; the drying speed is high, the paper tube is rapidly dried within one minute after being formed, the paper tube forming stiffness requirement is met, the production efficiency is improved, and the waiting time is shortened; and the production speed can be improved, the device can be suitable for different machine types, and the production speed is not lower than 60 m / min.

The invention discloses a plant-based composite adhesive and a preparation method thereof, and belongs to the technical field of adhesives. The plant-based composite adhesive is prepared from peach gum essence, a composite thickener, boric acid, a composite stabilizer, absolute ethyl alcohol, deionized water and tea polyphenol. By optimizing a peach gum essence preparation process, adopting a composite thickening system of konjac glucomannan and xanthan gum and a composite stabilizing system of phytosterol and trehalose, and optimizing process parameters, the viscosity and bonding strength of the adhesive are effectively improved, the stability of the adhesive is enhanced, layering of the adhesive in the storage and use process is prevented, and the adhesive has the advantages that the adhesive is not prone to cracking, and the service life of the adhesive is prolonged. And multi-scene green requirements such as gold printing are met.

The application discloses a water-based composite binder for a silicon-based negative electrode of a lithium ion battery and a preparation method and application thereof, and belongs to the technical field of lithium batteries. The water-based composite binder for inhibiting volume expansion of the silicon-based negative electrode is prepared by cross-linking fucoidan and gallic acid. The water-based composite binder prepared by the application has the advantages of good dispersibility, self-healing property and strong adhesion. The three-dimensional network structure formed after the binder is cross-linked is beneficial to the transmission of electrons and ions, greatly improves the mechanical property and interface stability of the binder, enables the SiOx electrode to maintain good integrity in a cycle process, effectively inhibits the volume expansion of the SiOx negative electrode material in the charging and discharging process of the electrode, and enables the SiOx negative electrode to exhibit good cycle stability and durability.

The present invention relates to a microneedle patch for blocking ultraviolet rays and, more specifically, to a microneedle patch which can be attached to the skin of a user to deliver useful drugs while simultaneously blocking ultraviolet rays.

The application belongs to the technical field of biological adhesives, and particularly relates to a preparation method of a konjac bio-based adhesive and application thereof. The application constructs a high-performance konjac bio-based adhesive through a multi-step aqueous process: firstly, a PVA mother liquor is prepared, high shear is introduced to form a hydrogen bond interpenetrating network with konjac glucomannan, so as to guarantee wettability and early holding force; then, a reversible thixotropic sub-network is constructed by sodium lignosulfonate, tannic acid and kaolin, so as to realize shear thinning and stress buffering; a pre-hydrolyzed silane forms a Si-O-C bridge under weak acid conditions, so as to realize the transition of the interface from physical intercalation to chemical anchoring; a latent crosslinking agent (BTCA / SHP) ensures storage stability, and activates esterification reaction to strengthen the bulk phase when used; silane modified nano-SiO2 forms an inorganic lattice, which cooperates with energy consumption to inhibit cracks; finally, a dense glue line is obtained through vacuum degassing and filtration.

The present invention relates to a microstructure including a biocompatible polymer or an adhesive and to a method for manufacturing the same. The present inventors optimized the aspect ratio according to the type of each microstructure, thereby ensuring the optimal tip angle and the diameter range for skin penetration. Especially, the B-type to D-type microstructures of the present invention minimize the penetration resistance due to skin elasticity at the time of skin attachment, thereby increasing the penetration rate of the structures (60% or higher) and the absorption rate of useful ingredients into the skin. In addition, the D-type microstructure of the present invention maximizes the mechanical strength of the structure by applying a triple structure, and thus can easily penetrate the skin. When the plurality of microstructures are arranged in a hexagonal arrangement type, a uniform pressure can be transmitted to the whole microstructures on the skin.

The invention concerns various formulations of polysaccharide, sodium bicarbonate, adhesive, water and sodium borate for preparing a heat resisting thermal protective material providing thermal protection for substrates and structures. When pliant, the thermal protective material according to the invention may be shaped into a geometric form such as a coating, a layer, a plate, tile or block. Once the material cures from its pliant state it becomes an intumescent, ablative material wherein its resistance to heat increases as it combusts. The length of time that thermal protection is afforded is proportional to the thickness of the coating, layer, plate, tile or block.

Provided is an adhesive having high sustainability and excellent adhesiveness.　Provided is an adhesive comprising a β-1,3-glucan derivative in which some or all of hydrogen atoms of hydroxy groups are substituted by a first acyl group and a second acyl group, wherein the first acyl group is an acyl group having 2-5 carbon atoms, and the second acyl group is an acyl group having 6-20 carbon atoms. Also provided is an adhesion method involving bringing the adhesive into contact with a material. Also provided is a method for producing an adhesive-bonded body, the method involving bringing the adhesive into contact with a material.

The invention belongs to the technical field of adhesives, and particularly relates to a water-based adhesive for a protective film as well as a preparation method and application of the water-based adhesive, and the water-based adhesive is prepared from the following raw materials in percentage by mass: 8-10% of maltose, 1-2% of gellan gum, 1-2% of microcrystalline wax, 0.2-0.5% of a thickening agent, 0.5-1% of a dispersing agent, 0.1-0.2% of a defoaming agent, 0.2-0.5% of a wetting agent, 0.1-0.3% of an emulsifying agent and 83.5-88.9% of water. The invention aims to provide the water-based adhesive for the protective film as well as the preparation method and the application of the water-based adhesive, which are beneficial to ensuring the adhesion firmness and the easy stripping property of the adhesive-coated protective film on the premise of keeping the soft light effect of a soft light brick.

The application discloses a natural-source thermoplastic adhesive with low-temperature resistance and multiple-cycle stability and application thereof, and belongs to the technical field of environment-friendly adhesive materials. The adhesive is prepared from amino acid compounds, hydroxy acid compounds, sugar compounds and functional components as main raw materials, and a stable and reversible physical action network composed of hydrogen bonds, ion interaction and coordination interaction is constructed in the system through the synergistic effect of various natural small molecules. The adhesive is suitable for various substrates, has the advantages of repeatable bonding, recyclability and cyclic use, and all components are derived from natural or renewable resources, which is conducive to reducing environmental burden, and has good environmental friendliness and sustainable application prospect.

An adhesive composition includes a beta-1,3-glucan derivative having an acyl group introduced in a beta-1,3-glucan, and a petroleum-based resin. An adhesive tape (1) is provided with an adhesive layer (3) formed of the adhesive composition.

This invention relates to the fields of fine chemicals and polymer materials technology, specifically a method for manufacturing toy adhesives. It includes steps for preparing the adhesive base material, preparing borax solution, and cross-linking molding. Polyvinyl alcohol, guar gum, methylparaben, etc., are prepared as base materials, which are then reacted with borax solution to undergo a cross-linking reaction. The core of this invention is the strict limitation of specific high-temperature ranges and constant-temperature stirring times during the base material preparation process, which promotes the complete extension and entanglement of molecular chains, constructing a dense and uniform three-dimensional network structure. This invention effectively avoids microscopic particle residue and stress concentration, achieving a significant improvement in the tensile strength, elongation at break, and resilience of the toy adhesive.

The present application relates to the technical field of plant fiber material and mine greening, and provides a mine ecological restoration spray seeding engineering fiber containing glue and a preparation method and application thereof.The mine ecological restoration spray seeding engineering fiber containing glue is prepared by mixing and drying a natural green plant polysaccharide glue coupling agent and a green fiber prepared by high-temperature and high-pressure cooking, dyeing and hot grinding.The mine ecological restoration spray seeding engineering fiber containing glue provided by the present application significantly improves the restoration spray seeding construction efficiency, forms a new integrated product through physical and chemical processing processes from originally independent and separated multiple raw materials, and simplifies the complex and complicated multi-step construction operation into a simple one-step construction operation, thereby significantly reducing the auxiliary operation time of the spray seeding operation, improving the work efficiency, shortening the construction period and reducing the construction cost.

The application discloses a preparation method of a food-grade natural adhesive based on honey, and relates to the technical field of adhesive preparation.The preparation method comprises the following steps: pretreating honey raw materials, adjusting the mass ratio of glucose to fructose in the honey to 1.2:1-1.4:1, adding food-grade microcrystalline cellulose as a heterogeneous crystal nucleus, and adding inulic acid as a crystal form regulator; cooling the mixture to 14±0.5 DEG C, and applying ultrasonic treatment in the cooling process to induce glucose to be preferentially precipitated in the form of needle-shaped crystals and form a crystal interpenetrating network; and then performing temperature rising to terminate crystallization, homogenization treatment, vacuum degassing, sterile filling and sealing, so that the food-grade natural adhesive is obtained.The application can actively control the crystallization behavior of honey by adjusting the ratio of glucose to fructose in the honey and introducing microcrystalline cellulose as a heterogeneous crystal nucleus and inulic acid as a crystal form regulator, so that a stable semi-solid paste formed by the interpenetration of needle-shaped glucose crystals and microcrystalline cellulose is formed.

The invention discloses a preparation process of zinc paste of an alkaline zinc-manganese battery, the zinc paste comprises the following raw materials: zinc powder, a binder, a corrosion inhibitor and an electrolyte, the binder comprises polyacrylic acid and low-acyl gellan gum, the mass percentage of the polyacrylic acid is 0.1-1%, and the mass percentage of the low-acyl gellan gum is 0.1-1%; the preparation method of the zinc cream comprises the following steps: 1) preparing low-acyl gellan gum; (2) preparing gellan gum mother liquor; (3) premixing the powder; and (4) dropwise adding the gellan gum mother liquor obtained in the step (2) into the premixed powder, stirring until the gellan gum mother liquor is uniformly dispersed, adding 25-30wt.% of KOH electrolyte, continuously stirring for 5-40 minutes, and carrying out vacuum defoaming to obtain the zinc paste. The low-acyl gellan gum prepared by the process has stability in a strong alkali environment, and zinc powder can be fixed by forming a rigid three-dimensional network structure, so that the rheological property, suspension stability and thixotropy of the zinc paste are improved, and the problems of solid-liquid separation and vibration resistance are solved.

The invention belongs to the technical field of functional adhesives, and relates to a preparation method and application of an ultra-long room-temperature phosphorescent formaldehyde-free adhesive. The method comprises the following steps: by taking lignin as a basic component, sequentially reacting with epichlorohydrin and an amination reagent under an alkaline condition to obtain ammoniated modified lignin; meanwhile, dispersing a natural polyhydroxy polymer in water, performing light oxidation treatment, and embedding a phosphorescent light-emitting unit through a covalent bond to obtain a functional cross-linking agent; and finally, uniformly mixing the two products at room temperature to prepare the ultra-long room-temperature phosphorescent formaldehyde-free adhesive. According to the method, biomass molecules are taken as a main body of raw materials, the process conditions are mild, and the obtained adhesive forms a covalent bond and hydrogen bond dual rigid network after being heated and fully cured, so that the adhesive can reflect the ultra-long room-temperature phosphorescence characteristic under the excitation of ultraviolet light, has the functions of interface bonding and optical recognition, and can be applied to the field of light emitting devices. The method can be applied to anti-counterfeiting and tracing of wood composite materials and related interface systems.

A flexible multifunctional cross-linking adhesive, a preparation method therefor and an application thereof. The adhesive uses guar gum and carboxyl styrene butadiene rubber as raw materials, and is formed by intermolecular cross-linking between hydroxyl groups rich in the guar gum and carboxyl groups contained in the carboxyl styrene butadiene rubber to form a flexible multifunctional cross-linked network. Compared to the prior art, the water-based adhesive is a flexible cross-linking adhesive that has a strong bonding force, high mechanical strength, and no cracking due to tensile deformation, and is insoluble in a battery electrolyte. The adhesive may effectively accommodate the volume effect of a sulfur positive electrode and keep the positive electrode structure intact during a cycling operation. At the same time, the adhesive has significant advantages such as environmental friendliness and being low cost. The compacted sulfur positive electrode has a simple preparation process and has relatively large application prospects.

Systems, devices and methods are provided for producing products including fibrous materials, such as filters. The system for producing fibrous materials includes a feeder for advancing a fibrous substrate from an upstream end to a downstream end and a first dispersing device for dispersing a binder onto the substrate to coat at least a portion of the fibers with the binder. The system further includes a second dispersing device for dispersing nanoparticles through a first surface of the substrate such that the nanoparticles are disposed between the first and second surfaces of the substrate. The binder promotes adhesion between the fibers and the nanoparticles to hold the nanoparticles within the internal structure of the substrate. This promotion of adhesion further distributes the nanoparticles more uniformly throughout the substrate, improving the performance properties of the material.

The present invention relates to a formaldehyde-free binder composition for mineral fibers, said binder composition comprising at least one phenol-and / or quinone-containing compound and at least one protein.

The invention provides an adhesive for repairing a Betyesian cultural relic, a preparation method of the adhesive and a repairing method of the Betyesian cultural relic, and relates to the technical field of cultural relic repairing. The adhesive for repairing the Betyesian cultural relics comprises the following components in parts by weight: 30-60 parts of a gymnadenia conopsea extract, 5-20 parts of an elm bark extract, 5-20 parts of a gelatin extract, 2-10 parts of a rosin extract, 1-2 parts of a eucommia ulmoides extract and 1-2 parts of a linseed extract. All the components of the adhesive are natural extracts, and the adhesive does not contain harmful substances such as organic solvents, and has the properties of high safety, high bonding strength and good softness and durability.

The invention relates to a formaldehyde-free environment-friendly adhesive, a formaldehyde-free environment-friendly shaving board and a preparation method of the formaldehyde-free environment-friendly shaving board, and the formaldehyde-free environment-friendly adhesive comprises the following components in parts by weight: 85-90 parts of glycosyl resin composition main glue and 10-15 parts of a curing agent, the preparation method of the glycosyl resin composition main glue comprises the following steps: preparing the following raw materials in parts by weight: 30-40 parts of cane sugar, 10-15 parts of urea, 50-60 parts of water, 2-3 parts of sodium hydroxide, 2-5 parts of tannin, 0.2-0.5 part of a silane coupling agent and 0.1-0.2 part of gas-phase nano silicon dioxide; the preparation process comprises the following steps: adding water into a reactor, then adding cane sugar, urea and tannin, uniformly stirring, heating to 50 DEG C, adding sodium hydroxide after the materials are completely stirred and dissolved, heating to 90-95 DEG C, reacting for 3 hours, cooling to 60 DEG C, adjusting the pH value to 5.5-6.5, adding a silane coupling agent, adding gas-phase nano silicon dioxide, keeping the temperature for 1 hour, cooling and discharging for later use; and the curing agent is liquid polymerized MDI.

The invention relates to a process for manufacturing a natural formaldehyde-free adhesive for MDF wood boards, wherein the adhesive comprises a formulation containing at least three components, which come from renewable sources. These components are selected from tannins, sucrose, starch and citric acid. The process comprises oxidising the sucrose (partially or completely), providing condensed tannins, hydrolysing and oxidising the starch, if present, and mixing the components.

This invention belongs to the field of lithium-ion battery technology, specifically relating to a composite binder, its preparation method, and a lithium-ion battery. The composite binder comprises carboxymethylated tamarind polysaccharide gum and a water-based binder—a crosslinked product of polyethylene glycol dimethacrylate. The water-based binder comprises at least one of an olefinically unsaturated monomer polymer and an epoxy alkane monomer polymer, and its side chain or end group contains at least one of N and O elements. The composite binder provided by this invention, by comprising carboxymethylated tamarind polysaccharide gum and a water-based binder—a crosslinked product of polyethylene glycol dimethacrylate—possesses strong adhesive strength and can be used in the preparation of silicon-based anodes for lithium batteries, resulting in excellent cycle stability performance of the silicon-based lithium battery.

The invention provides a water-based fluoride-free bonding composition, a positive pole piece, a preparation method of the positive pole piece and a battery. The water-based fluoride-free bonding composition comprises a component A and a component B, the component A comprises lithium polysilicate and / or gelatin; the component B comprises silk fibroin and / or tamarind polysaccharide gum. The problems of generation and residue of perfluorinated and polyfluoroalkyl substances in the battery production process can be relieved, the problems of breakage and cracking of the pole piece in the subsequent processing processes of rolling, slitting and the like are solved, and the processing yield and the long-term cycle stability of the battery can be improved.

Systems, devices and methods are provided for producing a product comprising fibrous material, such as a filter. A system for manufacturing a fibrous material comprises a feeder for advancing a substrate of fibers from an upstream end to a downstream end and a first dispersion device for dispersing a binding agent onto the substrate to coat at least a portion of the fibers with the binding agent. The system further includes a second dispersion device for dispersing nanoparticles through the first surface of the substrate such that the nanoparticles are disposed within the substrate between the first and second surfaces. The binding agent facilitates the bond between the fibers and the nanoparticles to retain the nanoparticles within the internal structure of the substrate. In addition, facilitating this bond provides a more uniform distribution of the nanoparticles throughout the substrate, which improves the performance characteristics of the material.

The invention provides a functional powdery wood product filler and a preparation method and application thereof, and belongs to the technical field of filler preparation, the filler is composed of, by weight, 75-90% of a mineral-based filler, 6-18% of a natural polymer bonding system, 1-4% of an interface regulating agent, 0.5-2% of a composite protective additive and 1-3% of a color adaptive component; wherein the mineral-based filler is formed by compounding limestone powder and semi-hydrated gypsum powder according to a ratio of (3-5): 1, the surface of the mineral-based filler is subjected to hydroxylation pretreatment, the interface regulating agent is a lignin derivative grafted acrylate copolymer, and the natural polymer bonding system is formed by compounding bone glue and guar gum according to a ratio of (2-3): 1. The filler disclosed by the invention is a dry powdery solid, is good in mixing property with water, does not contain any organic solvent, has environmental protection property and function integration property, is stable in interface bonding with a wood base material, is controllable in preparation process, is suitable for large-scale production, and is wide in application range.