41results about How to "Adhesion does not decrease" patented technology

The invention relates to a water-based high-viscosity glued diaphragm, a preparation method thereof and an application of the diaphragm in a battery. The water-based high-viscosity glued diaphragm comprises a base membrane, and a positive polymer layer and a negative polymer layer which are respectively arranged at two sides of the base membrane, wherein a positive ceramic layer is arranged between the base membrane and the positive polymer layer, and/or a negative ceramic layer is arranged between the base membrane and the negative polymer layer; a binder in the positive polymer layer and a battery positive electrode piece is the same type of binder, and a binder in the negative polymer layer and a battery negative electrode piece is the same type of binder. The diaphragm disclosed by theinvention has the characteristics of small coating amount of coatings on two sides, light and thin coatings, high cohesiveness and the like, so the shaping effect of a battery cell is optimal, and module boxing is facilitated; meanwhile, a module limiting effect is achieved. Moreover, the risk of hole blockage of the diaphragm is low, so the internal resistance of the battery cell is stable and controllable, the lithium precipitation risk is reduced, and the cycle life and safety performance of the battery cell are ensured.

The invention belongs to the technical field of film adhesion, and particularly relates to a method for preparing an adhesive coating and an adhesive film based on a layer-by-layer assembly technology. The method comprises the following steps of: treating a substrate; preparing a solution; assembling a layer-by-layer assembly film; self-supporting the layer-by-layer assembly film; bonding under the coaction of water and pressure, and the like. The method is not limited by the size and shape of a substrate, and is suitable for substrates with planes, curved surfaces and irregular surfaces. The maximum shearing tensile strength of an adhesive coating prepared on a glass surface can be up to 6.9+/-0.9MPa, and can be up to 2.7+/-0.9MPa after the adhesive coating is prepared into a self-support film on a periosteum surface. Meanwhile, the prepared coating has very high transmission rate, and the average transmission rate of a visible light region is over 80 percent. The method has the advantages of simple process, readily-available materials, low cost and environment-friendly process, and is suitable for occasions such as lens connection, glass bonding, clinical medical treatment and the like.

The invention discloses a sizing material for improving the stripping performance of an S-CLF coiled material by using an acid-base regulator. The sizing material is prepared from the following raw materials in percentage by weight: 40-60% of asphalt, 4-9% of modified oil, 4-9% of SBS, 2-8% of presol, 0.5-1.5% of SBR, 0.03-0.08% of a heat stabilizer, 0.03-0.08% of modified petroleum resin, 4-10% of the acid-base regulator, and the balance of filling powder. It is proved that the SBS, the pre-sol, the SBR, the modified oil and the asphalt are matched for use, so that the rubber, the asphalt and the modified oil are better combined, the adhesion effect of the rubber waterproof coating relative to a base layer is improved, and the waterproof effect is enhanced. According to the invention, the formula of the sizing material is optimized, the viscosity of the sizing material is reduced and the performance of the sizing material is improved through component selection and content proportioning, excellent stripping performance is achieved through combination and compounding of the components, and therefore, the problem that the stripping strength of the S-CLF sizing material coiled material and post-cast concrete has defects is solved; and meanwhile, other properties also satisfy the standard requirements.

This invention is to provide a multiple-layer membrane for agriculture which posses an antifogging characteristic and the sealing intensity is minimally reduced in acid environment like the acid rain and pesticide. The multiple-layer membrane is a polyolefin multiple-layer membrane provided with a coating layer which is form by anti-fogging composition on a base material. The base material at least possesses an outer layer, a medium layer and an inner layer, and the base material membrane contains polyolefin resin, and at least the medium layer contains more than one the compound A shown by the following formulation (A). The anti-fogging composition uses araldite and inorganic substance colloform collosol as base ingredients. R1 is representative of a functional group or a compound (including oligomer and polymer).

The invention discloses a polyethylene hot melt adhesive composition comprising a base material, an initiator, a modifier, a graft monomer, a brightener, a viscosity regulator and an antioxidant, wherein the base material is formed by mixing high-density polyethylene (HDPE) and linear low-density polyethylene (LLDPE); the initiator is dicumyl peroxide (DCP); the modifier is one of an ethylene elastomer, petroleum resin or styrene elastomer; the graft monomer is a mixture of maleic anhydride (MAH) and acrylic acid (AA); the brightener is inorganic TiO; and the viscosity regulator is polyethylene wax. The hot melt adhesive has good compatibility, adhesive strength and heat stability with the base material.

The invention discloses a self-healing supermolecule polyamide adhesive and a preparation method thereof. The preparation method comprises the steps: evenly mixing polyamide with methyl alcohol, adding methyl acrylate to perform Michael addition reaction and performing amidation condensation reaction through a product after reaction and a methanol solution in which polyamide is evenly dispersed toobtain dendritic polyamide; evenly mixing with polyacid, warming to 60 to 80 DEG C to react until a system becomes transparent, then warming to 160 to 180 DEG C to react for 20 to 24 hours, extracting and rotary evaporating to remove impurities after cooling, then adding urea, warming to 130 to 140 DEG C, reacting, taking out when the climbing pole phenomenon appears, naturally cooling to room temperature of 20 to 25 DEG C to obtain glass-like solid, then stirring for 60 to 72 h in 50 to 60 DEG C warm water and vacuum drying to obtain the supermolecule self-healing adhesive. The adhesive disclosed by the invention has the characteristics of strong adhesion force, high viscosity and application to negative pole materials of graphite, silicon-based materials, tin-based materials and the like.

The invention relates to a high polymer bandage and the preparation method, which solves problem of heterogeneous distribution of pre-polymer during bandage storage, and the adhesive effect of bandage is not reduced. The bandage is equipped with base raw material, the base raw material comprises polyurethane prepolymer, catalyst and packing material, the weight proportion of polyurethane prepolymer is 20-50% of that of bandage, the catalyst is amine compound, the proportion of it is 0.1-5%, and the granule diameter is smaller than 100nm and its proportion is 0.1-5%. The bandage can be widely used for fixation for surgery.

The present invention provides a polyamide acid combination, a polyimide combination, a laminated body, a circuit board, a usage thereof, the manufacturing method of the laminated body and the manufacturing method of the circuit board. The present invention provides the laminated body and the circuit board, the adhesive force between the metal layer and the resin base material of which can not decrease even on the condition of repeatedly exposing in high temperature and in oil element. The polyamide acid combination includes: an element (A) named polyamide acid combination and its weight average molecular weight between 10000 to 150000, and an element (B) named acrylic compound, and every range from 0.1 to 60 parts by weight containing the element (B) relative to the 100 parts by weight of the element (A). Each 1g of the element (A)containing the amount of free radical polymerized unsaturated bond is below 3mmol, the value of the element (B) [the number of (methyl) propylene acyl of one molecule/molecular weight] is above 0.001.

The invention discloses a preparation method for low-temperature-cured electrode slurry. The preparation method comprises the following steps of firstly mixing an organic solvent, polyimide powder, hydrogenated rosin resin and a dispersing agent in a water bath to be dispersed for 2-5h by a dispersion machine to obtain a uniform mixed solution A; then mixing the uniform mixed solution A, and a flatting agent, a thixotropic agent and a defoaming agent to be dispersed for 1-3h to obtain an organic carrier; and finally, mixing the organic carrier and sheet-shaped silver powder, and grinding the mixture to obtain the low-temperature-cured electrode slurry. The electrode slurry prepared by the method is short in curing time, excellent in high temperature resistance after the slurry is cured, relatively low in sheet resistance, high in adhesive force, excellent in weldability, free of cracks and needle vent holes, simple in preparation method, and low in cost.

The invention relates to a high-temperature double-sided adhesive tape. The high-temperature double-sided adhesive tape is prepared from the following raw materials in parts by weight: 8-12 parts of chloroprene rubber, 1-5 parts of a plasticizer, 4-8 parts of a solvent, 6-11 parts of acrylic resin, 5-7 parts of isocyanate, 3-8 parts of amino resin, 5-10 parts of epoxy resin, 2-6 parts of gelatin, 1-5 parts of stannous octoate, 4-9 parts of sodium hydroxide, 8-14 parts of methylcellulose, 4-10 parts of chloroprene adhesive and 2-7 parts of phenol resin. The high-temperature double-sided adhesive tape has the beneficial effects that the high-temperature double-sided adhesive tape can well withstand the high temperature and can be applied at a high temperature in a long term without decrease in binding property.

The invention discloses acid-resistant glass powder for end coating of silver paste and a preparation method of the acid-resistant glass powder. The acid-resistant glass powder comprises the followingcomponents in percentage by weight: 20-60% of SiO2, 10-50% of Na2CO3, 0.5-10% of K2CO3, 15-50% of ZnO, 1-30% of B2O3, 1-10% of CaO, 0.5-10% of Al2O3, 1-10% of TiO2 and 0.5-10% of ZrO2; wherein the molar ratio of the Na2CO3 to the K2CO3 is 20 to 60; wherein the molar ratio of the Na2CO3 to the B2O3 is greater than 1; and the acid etching weight loss ratio L of the acid-resistant glass powder is less than 0.3%. The problem of insufficient acid resistance of glass powder in an existing end-coated silver paste component is solved. The acid-resistant glass powder is good in acid resistance, stablein glass bonding phase chemical property, compact, good in soldering resistance, solderability and adhesive force, and excellent in aging resistance and component electrical property.

The embodiment of the invention discloses a novel tire bead steel wire coating and a coating method thereof. The coating comprises the following raw materials: coumarone-indene resin, mixed xylene andacetone. The coating method comprises the specific steps of plating the surface of a tire bead steel wire with a tin bronze plating layer, drying by virtue of a drying device, and dipping the tire bead steel wire into an oil core containing the novel tire bead steel wire coating, so as to cover the surface of the novel tire bead steel wire coating with a novel resin coating layer. The novel tirebead steel wire coating is specially used for treating the surface of the tire bead steel wire so as to cover the surface of the steel wire with the protective resin coating layer, so that the oxidative rusting of the surface of the steel wire is effectively prevented, the service life of the tire bead steel wire is substantially prolonged, and the adhesive force of the tire bead steel wire to therubber is increased by 6%-8%.

The invention discloses an RFL treating agent and application thereof. The RFL treating agent at least contains vinyl pyridine-styrene-butadiene terpolymer rubber latex, styrene-butadiene copolymer rubber latex and resorcinol-formaldehyde condensate; and based on 100 portions of the solid content of the vinyl pyridine-styrene-butadiene terpolymer rubber latex, the solid content of the styrene-butadiene copolymer rubber latex is 40 to 60 portions, and the solid content of the resorcinol-formaldehyde condensate is 5 to 15 portions. The RFL treating agent can be used for preparing a rubber reinforcing glass fiber cord; and because the RFL treating agent contains the resorcinol-formaldehyde condensate in a specific ratio, the rubber reinforcing glass fiber cord has both heat resistance and water resistance, can be used as a reinforcing material, is applied to rubber products such as synchronous belts for automobile engines and the like, and can further improve the durability when used under high-temperature and high-humidity environments.

The invention belongs to the field of composite structures, in particular to a partitioned sticking and bonding method of a large-scale metal or composite shell plate and industrial rubber. Accordingto the method, the connecting process of a rubber plate and a composite shell in a fairing manufacturing process is converted into the connecting process of glass and composite materials, the connecting and fixing difficulty is reduced, the fixing effect is increased, and the overall performance after the fairing is installed is improved; slotting treatment is performed, so that the stress deformation of a single-side vulcanized rubber glass plate is reduced, and additionally, a diversion channel is formed; the vacuum forming efficiency and the connecting strength of the connecting surface areincreased, so that the rubber plates can be integrally and evenly fixed to the surface of the fairing; and resin materials between the rubber plates are removed after vacuum forming, sealant is filled, and the sealant has good water resistance and adhesion with rubber, so that falling is prevented, water is prevented from entering, and a protective layer is formed.

The invention discloses a styrene-butadiene emulsion and a preparation method thereof. In parts by weight, the styrene-butadiene emulsion is prepared by performing mixing on 100 parts of a styrene-butadiene emulsion base and 5-10 parts of a kaolin dispersion solution. The styrene-butadiene emulsion base is prepared by the following steps: performing free-radical emulsion polymerization on an aqueous solution of a mixture of carboxylic acid monomers, (methyl) acrylate monomers, butadiene, (methyl) styrene monomers, titanates, a molecular weight regulator, an anionic emulsifier, a non-ionic emulsifier and an initiator; carrying out reaction at 60-90 DEG C for 3-10 hours; adjusting the pH value of the reaction product to 6-9 by using alkaline substances; and then, carrying out filtration so as to obtain the styrene-butadiene emulsion base. The kaolin dispersion solution is a dispersion prepared by performing grinding-dispersing on kaolin, an aqueous solution of sodium polyacrylate and water. The styrene-butadiene emulsion prepared by the preparation method is a high-performance environmentally-friendly product which is capable of meeting usage requirements of paper-making coatings. Being used in paper-making coatings, the styrene-butadiene emulsion is capable of significantly improving adhesive bonding performance of coating layers as well as enhancing water resistance of paper.

The present invention provides an adhesive and a pressure-sensitive transfer adhesive tape coated with the adhesive, which is colored when applied to an adherend, and the color disappears after a period of time. The adhesive of the present invention, and the pressure-sensitive transfer adhesive tape produced by coating the adhesive on a base material, the adhesive contains: a colorant that reacts a color developer with a leuco dye to produce a color, an action A substance having a decolorizing effect (decolorizing material) on it, and a microcapsule coated with a substance acting on at least one of them to make the two react.

The invention provides a method improving metal level photoresistive reworking technology; the method comprises the following steps: providing a photoetching wafer, wherein the wafer comprises a to-be-removed photoresist layer; carrying out the first time photoresistive ashing, wherein the first time photoresistive ashing temperature is smaller than 250 DEG C; using a wet method cleaning technology to clean; carrying out a second time photoresistive ashing, wherein the second time photoresistive ashing temperature is smaller than 250 DEG C. The method can effectively remove hill defects without causing pattern deformations.