123results about "Alginic acid adhesives" patented technology

Polysaccharide thermosetting systems and composites utilizing such systems include formaldehyde free binders formed from at least one polysaccharide and at least one polysaccharide crosslinker.

The invention relates to an adhesive for a lithium ion battery, and discloses an adhesive containing sodium carboxymethyl cellulose copolymers covalently grafted with sodium polyacrylate and an electrode slice and electrochemical device prepared from the adhesive. Compared with an adhesive in the prior art, the adhesive is strong in cohesiveness, good in electrochemical stability and especially suitable for the lithium ion battery with silicon as an anode, the capacity of the lithium ion battery can be remarkably improved, the circulating stability of the battery can be improved, and the coulombic efficiency of the battery can be improved.

The invention relates to a preparation method and application of an environment-friendly lithium ion battery, and in particular relates to a simulated mussel protein environment-friendly lithium ion battery adhesive. By simulating the molecular structure and action mechanism of mussel protein, histidine and dopamine are connected to polyacrylic acid, polymaleic acid, sodium alginate, sodium carboxymethylcellulose, carboxymethyl chitin, carboxymethyl chitosan, abietic acid and other natural or synthesized polymer to prepare a series of aqueous adhesives. The adhesive has a good adhering effect for various cathode materials such as carbon black, graphite and silicon. By adopting the adhesive provided by the invention, various properties of a lithium ion battery can be obviously improved, and especially cycle property of a silicon cathode material in a battery can be obviously improved.

The invention provides a method for preparing hydrated adhesive, which solves the problems of disposable usage, difficultly-controlled pasting position, difficult removal and the like in the traditional tackifier fundamentally. The technical key points of the invention are as follows: the hydrated adhesive is prepared by mixedly stirring the following raw materials by weight percent at normal temperature and pressure: 10%-35% of sodium alga acid (C6H7O8Na), 5%-30% of competed hydrate, 20%-50% of water-soluble adhesive and 5%-65% of water. The hydrated adhesive in the invention has the advantages of controllable viscosity, stable physicochemical property, environment protection, capability of repeated use, no residual and the like, and is suitable for caking of solid materials such as various paper, plastic and the like.

The invention discloses an enhanced-type composite adhesive of a lithium ion battery, a preparation method and an application thereof and belongs to the technical field of lithium ion battery adhesives. In the enhanced-type composite adhesive, a carboxyl group on a carboxyl-functionalized carbon nanotube can be condensed with groups, such as a hydroxyl group and the like, in a water-soluble high-molecular compound to form a bond for forming the enhanced-type composite adhesive. The enhanced-type composite adhesive has following three advantages: (1) the enhanced-type composite adhesive is greatly enhanced in tensile strength; (2) by means of a three-dimensional electric-conductive network formed by the carbon nanotube, the enhanced-type composite adhesive is effectively improved in electric-conductivity; and (3) the enhanced-type composite adhesive contains a special functional group which can be bonded with an electrode active material and is beneficial to ion transmission and tight combination between the composite adhesive and the active material can be maintained even a large size change is generated in the active material, so that a powder-falling phenomenon caused by volume expansion during a charging and discharging process can be prevented and cycling stability of the electrode active material is improved.

The invention relates to a preparation method of modified biomass lithium ion battery adhesives. According to the method, under high temperature and vacuum conditions, a plurality of natural polymers, such as sodium carboxymethylcellulose, sodium alginate, amylose, Arabia gum, carboxymethyl chitin, carboxymethyl chitosan and the like, and polyacrylic acid or polymethylacrylic acid undergo esterification crosslinking, so that a series of lithium ion battery adhesives can be prepared. The adhesives prepared by the invention can be applied in carbon based and silicon based lithium ion battery negative electrode materials at small dosages and can reach very good bonding effects. The film-forming property of materials can be improved substantially. Also, the adhesives prepared by the invention have the advantages of cheap and easily available raw materials, simple preparation method, environmental friendliness and no pollution, etc.

The invention discloses a lithium ion battery cathode binder, a cathode and a battery, and belongs to the technical field of lithium ion batteries. The cathode binder comprises alginate and butadiene styrene rubber, and the weight ratio of alginate to butadiene styrene rubber is 1:1-5:1. According to the invention, through adding alginate in butadiene styrene rubber, the bonding performance of the cathode binder is effectively enhanced. The structural damage of a lithium ion battery caused by the volume expansion of the silicon material during the charging-discharging cyclic process is avoided. Meanwhile, the cyclic stability of the lithium ion battery is improved. In this way, after 200 charge-discharge cycles of the lithium ion battery at the 0.5C multiplying power, the capacity retention ratio of the battery is still kept over 90%.

The disclosure is directed to an adhesive material which can be applied underwater comprising hydrophilic adhesive molecules. In other embodiments, the adhesive material may also include hydrophilic polymers and/or an oxidizing agent.

The invention provides a medical hydrocolloid pressure-sensitive adhesive and a preparation method thereof. The pressure-sensitive adhesive is prepared from styrene-isoprene-styrene block copolymer, ester gum, acetate starch, copal, sodium alginate, sodium carboxymethyl cellulose, phthalate, polyisobutylene, an antioxidant, an auxiliary antioxidant, ammonium persulfate, diethylene glycol vinyl ether, polytrimethyldihydroquinoline and naphthenic oil. The preparation method comprises the following steps: adding the styrene-isoprene-styrene block copolymer, acetate starch, copal, antioxidant and auxiliary antioxidant into a rheometer, and compounding; adding the ester gum, phthalate, polyisobutylene, ammonium persulfate, diethylene glycol vinyl ether and naphthenic oil into the rubber mixture, and compounding; and finally, adding the rest of components into the hot-melt pressure-sensitive adhesive, and compounding to obtain the hydrocolloid pressure-sensitive adhesive. The pressure-sensitive adhesive can be easily peeled from the skin surface, and has the advantages of high water absorptivity and high controllability on water-absorbing capacity when in use.

There is provided a method of manufacturing a three-dimensional structure, in which the three-dimensional structure is manufactured by laminating a layer, the method including: forming the layer using a three-dimension formation composition containing particles, a binding resin, and a solvent; applying a binding solution containing a binder to the layer; and removing the particles, which are not bound by the binder, using a removing solution after repeating the forming of the layer and the applying of the binding solution, in which, in the removing of the unbound particles, the binding resin has a water-soluble functional group whose pKa in water is less than the pH of the removing solution.

An aqueous adhesive composition and a process for preparing such compositions are disclosed. The composition comprises macromolecular complex comprising (A) a first component comprising (i) a framework element and (ii) a polyphenol, and (B) second component comprising a polypeptide, oligopeptide, amino acid, or polyamine. The framework element comprises (a) a polypeptide, oligopeptide, amino acid, or polyamine, (b) a polysaccharide, oligosaccharide, or monosaccharide, or a saccharide conjugate, or (c) a lignin, a lignan or a lignin conjugate. The polyphenol comprises a tannin, a tannic acid, a flavonoid, or a poly-resorcinol. An adhesive precursor composition comprising the first component is also disclosed.

The presently disclosed and/or claimed inventive concept(s) relates to a binder composition comprising a cross-linked polymer system. The cross-linked polymer system comprises an ionizable water soluble polymer cross-linked with a component using an esterification catalyst and/or an epoxy resin with two or more epoxide groups. The presently disclosed and/or claimed inventive concept(s) also relates generally to the compositions and methods of making electrodes, in particular but without limitation, anodes, with a binder composition comprising an ionizable water soluble polymer cross-linked with a component.

The presently disclosed and/or claimed inventive concept(s) relates generally to a composition of a slurry for use in preparation of a lithium ion battery. The slurry comprises a binder composition comprising a modified guaran for use in battery electrodes and methods of preparing such. The presently disclosed and/or claimed inventive concept(s) also relates to compositions and methods of making electrodes, either anodes and/or cathodes, with the binder composition comprising the modified guaran.

A novel composition-of-matter, method of manufacturing thereof, and applications thereof as an adhesive, in a wide variety of different fields, and in particular, in the health care fields of medicine, dentistry, and veterinary science, for use by health care providers, such as medical, dental, and veterinary, surgeons, in procedures for reattaching or repairing body parts or components thereof, such as tissue, of (human or animal) subjects, especially under wet conditions, for example, involving adhesion of wet surfaces. The composition is comprised of a cross-linked form of a water miscible polymer, and at least one phloroglucinol type compound selected from the group consisting of: phloroglucinol, a derivative of phloroglucinol, and a polymer synthetically prepared from phloroglucinol or a derivative of phloroglucinol. An exemplary water miscible polymer is a naturally existing, or synthetically prepared, salt form of the carbohydrate alginic acid, such as sodium alginate, or alginic acid itself.

The invention discloses a water-soluble adhesive sticker adhesive which is composed of the following components in parts by mass: 50-80 parts of main adhesive, 11-22 parts of polyvinylpyrrolidone, 4-10 parts of glycerol, 5-10 parts of ethanediol, 5-10 parts of trimethylolpropane, 10-24 parts of caprolactam, 8-27 parts of sorbitan laurate, 2-9 parts of poly(oxyethylene-oxypropylene) oleate and 5-15 parts of preservative. The water-soluble adhesive sticker adhesive can be peeled and bonded repeatedly, and is suitable for bonding paper, labels and the like. The adhesive sticker adhesive can be dissolved quickly and thoroughly in water, and can not leave any trace on the bonded article.

The invention discloses a high-performance adhesive and an application thereof in electrode preparation. The adhesive comprises, by mass, 10-90% of sodium alginate and balance of sodium carboxymethylcellulose. The electrode provided by the invention can be used in lithium ion batteries, sodium ion batteries, super capacitors, and the like. The improvements of the lithium ion batteries, sodium ion batteries, super capacitors, and the like are in that the adhesive provided by the invention is adopted, such that the batteries are provided with good circulation performances. The lithium ion batteries, sodium ion batteries, super capacitors, and the like have the characteristics such as long circulation live, such that the batteries are especially suitable for large-scale energy storage batteries required by solar energy and wind power generation, and large-scale energy storage devices such as an intelligent power peaking device.

The invention discloses a preparation method of a medical pressure sensitive adhesive (PSA). The preparation method comprises the following steps: firstly adding 2-7 parts of butyl rubber, 7-10 parts of glycerol ester of rosin, 1-5 parts of polyethylene glycol, 1-3 parts of calcium lignosulphonate and 2-4 parts of sodium alginate by weight to a stirrer to be stirred and mixed uniformly to obtain a material I; secondly adding 2-5 parts of diethyl phosphite and 3-7 parts of chlorinated paraffin by weight to the material I, mixing the materials uniformly and then mixing the mixture to obtain a mixed product; and finally adding 2-5 parts of maleamic acid and 3-6 parts of methacrylic acid by weight to the mixed product, heating and stirring the materials for 30-50 minutes in the presence of an inert gas and then mixing, thus obtaining the medical PSA. The medical PSA provided by the invention has the beneficial effects that the initial adhesion achieves the degree of No.32 standard steel balls; the holding power is more than 115 minutes; and the medical PSA has low peel strength and good peel integrity and can be better applied to the medical field.

Disclosed herein are a binder composition for manufacturing an electrode of an energy storage device and a method for manufacturing an electrode of an energy storage device. The binder composition includes galactomannan as a major component and may exhibit sufficient binding force with a considerably small amount, as compared to binders in the related art. When the binder composition disclosed herein is used to manufacture an energy storage device having the same weight as that manufactured using the binder in the related art, the energy storage device may contain a greater amount of active material, compared to the binder in the related art. Consequently, beneficial effects such as improvement in an energy density as well as eco-friendly characteristics may be rendered.

The invention provides a hydrophilic pressure-sensitive adhesive containing fructus forsythiae volatile oil and a preparation method thereof. The pressure-sensitive adhesive comprises the following components in parts by weight: 24 to 46 parts of polyurethane, 26 to 40 parts of alginate, 4 to 16 parts of chitosan, 0.1 to 10 parts of fructus forsythiae volatile oil, and 1 to 4 parts of 2,6-di-tert-butylmethyl phenol. The polyurethane is prepared through the condensation reactions between polytetramethylene glycol and isophorone diisocyanate. The preparation method comprises the following steps: (1) preparing polyurethane; (2) preparing a hydrophilic polyurethane pressure-sensitive adhesive containing fructus forsythiae volatile oil. The hydrophilic pressure-sensitive adhesive has the curative functions of preventing infection and promoting injury heal, has the advantages of non-toxicity, non-irritant property, and no allergy or peeling reactions, is a safe and reliable medical pressure-sensitive adhesive, and has a prominent economic profit.

The invention relates to the technical field of lithium ion battery manufacturing. The invention discloses a high safety cathode slurry adhesive for lithium ion batteries; the high safety cathode slurry adhesive is prepared from the following raw materials: sodium carboxymethyl cellulose, butadiene styrene rubber, sodium alginate, adhesive additives and the like. The cathode slurry adhesive provided by the invention has better bonding performance, is capable of enabling negative active materials to be better and more evenly bonded together, and is also suitable for batteries needing higher cycle performance. The cathode slurry adhesive can improve the safety performance of cathode slurry, and enables the assembled lithium ion batteries to automatically stop an exothermic reaction at high temperature so as to guarantee the use safety of the lithium ion batteries.

The invention relates to a preparation method of aqueous adhesive for lithium-ion batteries, relates to an energy-storage battery and provides a preparation method of aqueous adhesive for lithium-ion batteries which is high in strength, low in cost, green and environment-friendly, and simple to prepare. The aqueous adhesive is prepared by mixing and stirring sodium alginate and a crosslinking agent and forming gel via crosslinking reaction. The aqueous adhesive is high-strength aqueous adhesive for lithium-ion batteries. The hardness of thin film of the adhesive is multiplied, which helps reduce the surface fracturing chance of an electrode with the adhesive of the invention during charge-discharge cycle, so that the cycle performance of the electrode is improved.

An aqueous multicolor coating composition composed of a colored coating-particle component containing a coloring agent and an aqueous resin having a carboxyl group and another cross-linked functional group, and a coating formation component containing an aqueous resin having a carboxyl group, a hydrolysable silyl group, and another cross-linked function group. The coating formation component includes a specific amount of polyvalent metal, thereby making it possible to obtain an aqueous multicolor coating composition in which the colored coating particles are not liable to be crushed during spray application as well as roller application, and that is multicolored with excellent clarity, has good adherence to cloth, and can form a multicolored coating having excellent long-term weather resistance.

The invention relates to the technical field of adhesives, in particular to an adhesive composition for plywood and a preparation process of the adhesive composition. The adhesive composition comprises the following substances in parts by mass: 150-180 parts of water, 25-35 parts of polyvinyl alcohol, 12-15 parts of bentonite, 10-15 parts of a preservative, 0.5-1.5 parts of rosin resin, 0.2-1.5 parts of an organic silicane modifier, 1.2-3.6 parts of epoxy resin, 1.5-3.6 parts of sodium alginate, 5-10 parts of a foaming agent, and 20-30 parts of a filler; the pH value of the adhesive composition is 3-5. The adhesive composition and the preparation process have the benefits that the use of toxic substances such as formaldehyde, benzene and methylbenzene is avoided, the requirement of people on green building materials and costly furniture in house decoration is met, the adhesive composition is suitable for people requirements, the artificial playwood produced by the adhesive composition can achieve the purposes of being complete innocuous and nontoxic, and environmentally friendly. During the production process, environment pollution is avoided, and the curing time of the adhesive composition is short, and the effective life is long.

The invention discloses an antioxidant polymer composite waterproof roll. The antioxidant polymer composite waterproof roll is characterized in that the antioxidant polymer composite waterproof roll is formed by compounding a modified asphalt waterproof roll layer, a butyl rubber waterproof roll layer, a polyvinyl chloride waterproof roll layer, a hot melt adhesive layer and an isolation film layer in sequence from top to bottom, a polyethylene grafting material and tackifying master batches are added in a formula system of a high-density polyethylene waterproof roll layer and thermoplastic polyolefin waterproof roll layer respectively, an oxidation layer is applied on the surface of the modified asphalt waterproof roll layer, an adhesive is arranged between the modified asphalt waterproofroll layer and the butyl rubber waterproof roll layer, the oxidation layer is applied on the surface of the modified asphalt waterproof roll layer, the oxidation layer can prevent the modified asphalt waterproof roll layer from being oxidized and reduce the corrosion speed of the waterproof roll, secondly, the butyl rubber waterproof roll layer is added into the waterproof roll, and the butyl rubber waterproof roll layer enhances the tensile strength of the waterproof roll.

The invention relates to the field of sodium-ion batteries, in particular to a multifunctional water-based binder for a sodium-ion battery and application of the multifunctional water-based binder. The invention provides a multifunctional water-based binder for a sodium ion battery. The multifunctional water-based binder comprises a sodium ion water-soluble polymer and polyethylene oxide. The multifunctional water-based binder with a three-dimensional network structure is constructed through esterification reaction of the sodium ion-containing water-soluble polymer and polyethylene oxide, the multifunctional water-based binder has high mechanical performance, the binding performance of the multifunctional water-based binder can be improved, and the cycling stability of an electrode is improved. The sodium ion-containing water-soluble polymer can uniformly cover the surface of an active material to form a passivation film, so that the loss of irreversible capacity of a battery is reduced, and the first coulombic efficiency and the rate capability are improved.

A tissue filling, repair, sealing, or bonding substance comprising at least three components, at least two of which upon coming into fluid communication with each other react and change the chemical, structural or other properties of the substance so as to bond to adjacent native or implanted tissue. The composition is further defined as comprising a first component of a curable substance, a second component of a suitable curing agent, and a third component of an encapsulant capable of forming a barrier between the first two components and physically arranged to form an encapsulated dispersion of the form interior phase (linking agent), exterior phase (encapsulant), and continuous phase (curable substance). The encapsulant is further defined as having limited solubility in the curable substance and the curing agent and having a melting temperature between 10° C.-50° C.