33results about How to "Cross-linking reaction is sufficient" patented technology

Provided is a curable polymer that contains an acid group, a polymerizable unsaturated group and a blocked <span lang=EN style='font-family:"Courier New"'>isocyanato group. The curable polymer<span lang=EN style='font-family:"Courier New"'> has a weight average molecular weight of 1,000 to 50,000 in terms of polystyrene, and preferably has an acid value of 20 to 300 mg KOH / g, an unsaturated group equivalent of 100 to 4,000 g / mol, and a blocked isocyanato group equivalent of 400 to 6,000 g / mol. After mixing the curable polymer with a solvent, blending in a reactive diluent, a photopolymerization initiator and a colorant to prepare a photosensitive material for a color filter, and using said photosensitive material to form a pattern, a color filter is obtained by preferably baking said pattern at 210°C or less.

The invention discloses a production formula and a preparation method for an elastic rotator, which belong to the technical field of road transportation equipment. The formula comprises the following specific components: 10 to 20 percent of ethylene-octene copolymer (POE), 40 to 60 percent of EVA (ethylene-vinyl acetate copolymer), 10 to 20 percent of ethylene-propylene-diene monomer, 5 to 10 percent of anti-shrinking agent, 1 to 3 percent of filler, 0.6 to 1.6 percent of dispersed lubricant, 1 to 2 percent of zinc oxide, 0.7 to 1.2 percent of cross-linking agent, 1.5 to 2.5 percent of foaming agent, 1.5 to 2.5 percent of flowable agent and 2 to 4 percent of color masterbatch pigment, and the total weight is 100 percent. The POE, the ethylene-propylene-diene monomer and the EVA are mixed and refined, and are added with a variety of additives, so that the three types of materials keep respective properties and complement one another, the elasticity of the prepared elastic rotator is high, moreover, after foaming, the texture is dense, the weight is light, the good anti-aging property of the elastic rotator is ensured, the elastic rotator cannot be easily cracked when receiving impact force, and the service life of the elastic rotator is effectively prolonged.

The invention relates to a preparation method of a polaroid adhesive and a preparation method of a polaroid. The preparation method of the polaroid adhesive comprises swelling polyvinyl alcohol in water to obtain an aqueous solution containing swollen polyvinyl alcohol, heating the aqueous solution containing the swollen polyvinyl alcohol to 90-100 DEG C under stirring, then adding a modifier intothe mixed solution, keeping the temperature of 90-100 DEG C for 40 to 60 minutes, cooling the mixture to 40 DEG C or less to obtain a pre-mixed solution, adjusting pH of the pre-mixed solution to 1.5-2 under continuous stirring, and adding dialdehydes, additives, a cross-linking agent and alcohol into the pre-mixed solution for a cross-linking reaction at the room temperature so that an adhesiveis obtained. The polaroid adhesive obtained by the preparation method has good adhesive properties and improves high temperature and yellowing resistance of a polaroid.

The invention relates to a resin composition, a prepreg, a circuit board and a printed circuit board. The resin composition comprises carbon-carbon conjugated group-terminated polyphenyl ether resin, carbon-carbon double bond-containing hydrocarbon resin, a polysiloxane curing agent and a solvent, wherein the structure of the polysiloxane curing agent is shown as a formula (I), in the formula (I), m is an integer of 1-20, R1 is a first alkyl group with a carbon chain length of 1-12, R2 is hydrogen or a second alkyl group with a carbon chain length of 1-12, and at least one of R1 or R2 contains an alkenyl active functional group. The polysiloxane curing agent in the resin composition is not easy to volatilize, so that the stable performance of circuit substrates prepared in different batches can be ensured; moreover, the polysiloxane curing agent does not contain hydrophilic groups and cannot be hydrolyzed, so that in the use process of the circuit substrate, the hygroscopicity of the circuit substrate can be effectively reduced, and the dielectric property of the circuit substrate can be prevented from being degraded due to moisture absorption.

The invention provides a method for preparing surface metallization aramid fibers. The method includes steps of 1, carrying out aramid surface treatment, to be more specific, removing oil from aramidfibers, cleaning the aramid fibers, then placing the aramid fibers in melamine formaldehyde resin prepolymer solution, treating the aramid fibers at the temperatures of 20-80 DEG C for 5-60 s, then taking out the aramid fibers, mangling moisture on the surfaces of the aramid fibers and drying the aramid fibers; 2, carrying out activation, to be more specific, immersing the aramid fibers, which aretreated at the step 1, in activation solution, carrying out surface activation treatment on the aramid fibers and then removing residual solution on the surfaces of the aramid fibers by water; 3, carrying out reduction, to be more specific, placing the aramid fibers in reducing agents capable of reducing metal ions in the activation solution after the activation treatment is carried out on the aramid fibers, carrying out room-temperature reaction for 1-5 min, then rinsing the aramid fibers by water and drying the aramid fibers; 4, carrying out chemical plating, to be more specific, placing the reduced aramid fibers in plating solution, carrying out chemical plating on the aramid fibers, taking out the aramid fibers after the chemical plating is completely carried out on the aramid fibersand washing and drying the aramid fibers. The method has the advantages that the method is simple, feasible, safe, reliable, ecological and environmentally friendly and is convenient to operate, and large-scale production can be facilitated; the surface metallization aramid fibers prepared by the aid of the method are small in density, high in strength and good in electric conductivity, and the like.

The invention discloses a manufacturing method of a chamfered tank, comprising: a shell-making part of the tank body: manufacturing a metal shell of the tank body, and the surface of the metal shell is clean; the vulcanization part of the tank body: filling the metal shell with glue Vulcanization, including a coating step, a vulcanization step, and a mold release step, wherein the coating step coats the inner surface of the metal shell with an adhesive, the vulcanization step uses a vulcanizer and a vulcanization mold, and the vulcanization step The metal shell is filled with rubber and vulcanized. The vulcanization step includes a preheating section, a pre-vulcanizing section, a positive sulfur section, a cooling section and a demoulding section; the cleaning part of the tank body: remove the vulcanization flash to obtain the tank body. The manufacturing method of the chamfered can of the present invention can reduce or even prevent the occurrence of pits in the rubber layer of the can body, avoid poor chamfering, and save the cost of picking and rework.

The invention provides a non-ironing fabric with a high-hanging dry appearance and a preparation method thereof. The preparation method comprises padding the fabric in the non-ironing finishing liquid, and storing the padded fabric for 6h-15h in an environment of 28°C-40°C and a humidity of 20%-70%; wherein, the non-ironing finishing liquid contains Resin cross-linking agent and acid-base buffering agent; steaming treatment, the temperature of steaming treatment is 80°C-150°C, and the time of steaming treatment is 2min-8min, so as to obtain a non-ironing fabric with a high-hanging dry appearance. The non-ironing fabric prepared by the above-mentioned preparation method of the present invention has a high hang-dry appearance under the condition of sufficient strength.

The invention relates to an anti-corrosion and anti-sticking coating for a fire grate segment of a garbage incinerator as well as a preparation method and application of the anti-corrosion and anti-sticking coating. The paint of the anti-corrosion and anti-sticking coating is prepared from the following components: 40 to 60 parts of metal oxide sol, 2 to 4 parts of fluorine-doped graphene, 8 to 12 parts of nano ceramic powder, 6 to 8 parts of anti-corrosion filler, 3 to 6 parts of compatilizer, 1 to 3 parts of silane coupling agent, 4 to 7 parts of auxiliary agent and 40 to 60 parts of solvent, and the sum of all the components is 100 parts.

The invention discloses an anti-radiation antibacterial fabric, which specifically relates to the technical field of textiles. The prepared anti-radiation antibacterial fabric has greatly improved anti-radiation performance due to the addition of anti-radiation antibacterial fibers, and has excellent antibacterial performance, which is resistant to Escherichia coli The antibacterial rate of methacrylic acid and Staphylococcus aureus can reach more than 99%; the use of methacrylic acid monomer and samarium methacrylate under the action of an initiator undergoes a polymerization addition reaction on the surface of lead tungstate to form a layer of film structure, A carboxyl-rich lead tungstate-samarium methacrylate complex was obtained, which greatly promoted the interfacial adhesion of lead tungstate to polyester substrates.

The invention discloses a processing method for improving abrasion resistance of ironing-free shirt ready-made clothes, which is characterized in that a heat insulation protective cover is sleeved on a particularly easily-abraded part of a shirt such as a collar and a cuff before high-temperature baking to reduce cross-linking reaction between the fabric of the collar and cuff parts and ironing-free resin, and the heat insulation protective cover is taken down after the high-temperature baking. The method has the advantages that: by using good heat insulation effect of the heat insulation protective cover, the temperature rise rate and the heated baking time of the shirt collar and cuff parts are reduced to a certain degree, the reaction degree of the resin on the collar and cuff parts and the fiber is reduced, and the strength and abrasion-resistant durability of the fabric on the parts are improved; and the resin and the fiber on the other parts of the shirt without sleeving the heat insulation protective cover still can produce complete cross-linking reaction; therefore, the shirt realizes the durable ironing-free function.

Provided is a curable polymer that contains an acid group, a polymerizable unsaturated group and a blocked <span lang=EN style='font-family:"Courier New"'>isocyanato group. The curable polymer<span lang=EN style='font-family:"Courier New"'> has a weight average molecular weight of 1,000 to 50,000 in terms of polystyrene, and preferably has an acid value of 20 to 300 mg KOH / g, an unsaturated group equivalent of 100 to 4,000 g / mol, and a blocked isocyanato group equivalent of 400 to 6,000 g / mol. After mixing the curable polymer with a solvent, blending in a reactive diluent, a photopolymerization initiator and a colorant to prepare a photosensitive material for a color filter, and using said photosensitive material to form a pattern, a color filter is obtained by preferably baking said pattern at 210°C or less.

A cationic styrene-acrylic primer emulsion, which includes water, styrene, n-butyl acrylate, isooctyl acrylate, cationic emulsifier, high-density crosslinking monomer, hydrophilic monomer, azo initiator, the above components In terms of parts by mass, they are: 60 parts of water, 5-20 parts of styrene, 5-20 parts of n-butyl acrylate, 5-20 parts of isooctyl acrylate, 1-10 parts of cationic emulsifier, high-density cross-linking unit 1-5 parts of monomer, 1-5 parts of hydrophilic monomer, 1-5 parts of azo initiator. The cationic styrene-acrylic primer emulsion of the present invention has excellent sealing performance on the wall.

The invention discloses a production formula and a preparation method of an elastic rotating body, belonging to the technical field of road traffic equipment. Its formula includes the following specific components: ethylene-octene copolymer (POE) 10-20%, EVA 40-60%, EPDM rubber 10-20%, anti-shrinkage agent 5-10%, filler 1- Weight Total is 100%. Mix and refine POE, EPDM materials and EVA materials, and add a variety of additives, so that the three materials can maintain their own properties and complement each other. It is dense and light in weight, which ensures good anti-aging performance of the elastic rotating body, and is not easy to crack when subjected to impact force, effectively prolonging the service life of the elastic rotating body.

The invention relates to a silane crosslinking halogen-free flame retardant polyolefin composite material. The composite material is prepared by uniformly mixing a base stock, a flame-retardant master batch and a catalyzing master batch according to a weight ratio of 50:45:5, extruding the materials through a screw extruder, and conducting a cross-linking reaction through a warm water bath or a steam bath to prepare the product. A phosphorus-nitrogen compound flame retardant system is prepared by compounding a microencapsulated flame retardant and a macromolecular hyperbranched triazine char forming agent; the flame-retardant master batch, the catalyzing master batch and the base stock are separately prepared and then mixed to prepare the silane crosslinking halogen-free flame retardant polyolefin composite material. Compared to the prior art, the flame retardant efficiency, the water resisting property and the durability of the material are obviously increased; furthermore, the good surface properties and the excellent mechanical properties of the material are kept.

The invention discloses a high-temperature-resistant pressure-sensitive coating material, a preparation method and a protective film. The raw materials of the pressure-sensitive coating material include: polyacrylate pressure-sensitive adhesive: 50% to 65%; cross-linked Agent: 0.5% to 6%; solvent: 10% to 30%; auxiliary agent: 5% to 20%; the crosslinking agent uses a liquid mixture of hexamethylene diisocyanate and dicyclohexylmethane diisocyanate and diphenyl Methane diisocyanate hollow particles; the outer diameter of the hollow particles is 1 mm to 80 mm; the auxiliary agent is ethanol. In the present invention, by improving the type, proportion and adding state of the isocyanate crosslinking agent, adding additives, and adjusting the overall proportioning relationship of the pressure-sensitive coating material raw materials, the polyacrylate pressure-sensitive adhesive and the isocyanate crosslinking agent are fully Contact and sufficient cross-linking reaction to obtain a protective film with good resistance to high temperature, heat and humidity, and acid and alkali.

The invention discloses an alkaline battery cathode preparation method, and aims to improve the uniform dispersity of a gelatinizing agent for preparing gel electrolyte. The alkaline battery cathode preparation method comprises the following steps: (1) metering and feeding an electrolyte into a stirring tank of a gel electrolyte stirring device, and starting a stirring motor of the gel electrolyte stirring device to enable the gel electrolyte stirring device to firstly stir the electrolyte for time A; (2) after the electrolyte is stirred for the time A, metering the gelatinizing agent, then dispersively feeding the gelatinizing agent into the stirring tank of the gel electrolyte stirring device, completing the feeding of the gelatinizing agent within time B, and keeping the stirring motor of the gel electrolyte stirring device working during the feeding of the gelatinizing agent; (3) continuously enabling the stirring motor of the gel electrolyte stirring device to work for time C; (4) aging a product obtained in the step (3) for time D to swell the gelatinizing agent; (5) metering the gel electrolyte obtained in the step (4), then feeding the gel electrolyte into a stirring container of zinc paste stirring equipment, adding metered zinc powder, and uniformly mixing the zinc powder and the gel electrolyte through the zinc paste stirring equipment; (6) feeding zinc paste obtained in the step (5) into a zinc paste transfer container.

A sealing primer emulsion for fresh cement comprises the following components in parts by mass: 50 parts of water, 5-20 parts of styrene, 5-20 parts of n-butyl acrylate, 5-20 parts of 2-ethylhexyl acrylate, 1-5 parts of an emulsifier, 1-5 parts of a high-density crosslinking monomer, 1-5 parts of a hydrophilic monomer and 1-5 parts of an initiator. The sealing primer emulsion for the fresh cement has excellent air permeability and closure.

The invention relates to the technical field of electrolytic cells, which discloses a preparation process for an anode gasket for an ion-exchange membrane electrolytic cell, which sequentially includes a batching process, a mixing process, an extrusion molding process and a molding vulcanization process, and the batching process is as follows: Proportionate ingredients: 100 parts of binary ethylene propylene rubber raw material, 85-90 parts of natural gas semi-reinforced carbon black raw material, 2.5-3.0 parts of molded flow aid, 2-5 parts of anti-aging agent, 2-5 parts of peroxide crosslinking agent parts, 3 to 5 parts of crosslinking aids, and 0.5 to 1.0 parts of liquid polybutadiene; the mixing process includes using an internal mixer to carry out one-stage mixing and two-stage mixing successively; the extrusion molding process includes using The extruder extrudes the compounded compound into shape; the molding vulcanization process includes adding the extruded compound into a mold for molding, heating and vulcanization to make the anode gasket. The invention can improve the corrosion resistance of the anode gasket, prolong the overall service life of the electrolytic cell, and reduce the maintenance cost of the electrolytic cell.

The invention relates to a high-performance solar module packaged through reliable durable EVA, and belongs to the technical field of solar devices. The module comprises a frame and a cell unit in the frame, and two opposite side edges of the frame are respectively provided with a water inlet and a water outlet. The cell unit comprises a substrate, and the substrate is sequentially provided with a heat-dissipation layer, a first film layer, a solar cell layer, a second film layer, a transparent cover plate, and a third film layer. The interior of the heat-dissipation layer is uniformly provided with column tubes at intervals, and two ends of each column are respectively communicated with the water inlet and the water outlet. The first, second and third films are all EVA films. The module is sealed through three EVA films, thereby guaranteeing the sealingness of a solar cell and the working stability.