20results about How to "Improve clustering" patented technology

The invention provides a modified silicone oil agent with a comb-shaped structure as well as a preparation method and application thereof, the oil agent comprises an amino modified silicone oil emulsion and an epoxy modified silicone oil emulsion, and the mass ratio of the amino modified silicone oil emulsion to the epoxy modified silicone oil emulsion is 1: (0.5-1.5); the amino modified silicone oil emulsion and the epoxy group-containing modified silicone oil emulsion have comb-shaped structures, main chains of the amino modified silicone oil and the epoxy group-containing modified silicone oil are acrylate polymers, and branch chains are amino short silane chains or epoxy group-containing short silane chains; the preparation method of the oiling agent comprises the following steps: respectively preparing amino short-chain silicone oil and epoxy group-containing short-chain silicone oil, and then respectively synthesizing amino modified silicone oil emulsion and epoxy group-containing modified silicone oil emulsion. The acrylate polymer is introduced, the content of organic silicon is reduced, the viscosity of the oiling agent is small, carbon fibers are conveniently oiled, a protective film is formed on the fibers, friction and abrasion between the fibers are prevented, and therefore the surface defects of the carbon fibers are reduced.

The invention relates to a starch type impregnating compound and a preparation method and application thereof, the impregnating compound comprises an active component and water, the active component comprises the following raw materials in parts by weight: 45-65 parts of a starch-based film-forming agent, 5-10 parts of a plasticizer, 15-20 parts of a lubricant, 1-2.5 parts of an emulsifier, 5-8 parts of a coupling agent, 1-2.5 parts of a softening agent, 0.5-1.5 parts of a preservative and 0.02-0.05 part of a defoaming agent; wherein the starch-based film-forming agent is a composition of potato oxidized hydroxypropyl starch, starch octenyl succinate and modified starch in a mass ratio of 1: (1.1-1.5): (0.5-0.8); the lubricant is a composition of carnauba wax and hydrogenated soybean oil. The impregnating compound disclosed by the invention can effectively improve the wear resistance of low-twist yarns, reduce hairiness and enhance bundling property and weaving performance, and can be used for preparing glass fiber spinning spun yarns.

The present application discloses a high-temperature starch-type sizing agent for electronic-grade glass fiber yarn, which is an aqueous solution of effective ingredients, the solid content of the sizing agent is 5.19-10.76%, and the solid mass of each effective ingredient accounts for the percentage of the total solid mass of the sizing agent: starch 3.40-7.00%; oil 1.10-2.30%; emulsifier 0.05-0.10%; pretreatment agent A 0.15-0.40%, pretreatment agent B 0.30-0.50%; antistatic agent 0.17-0.40%; ammonia water 0.02-0.06%. The starch is a mixture of high-amylose corn starch, acrylamide grafted modified starch and acetyl modified starch, and the mass ratio of the three is 1:1:1-5:2:1. This wetting agent can maintain the advantages of high-temperature system wetting agents in terms of high yarn bundling and good covering properties, while reducing yarn stiffness and improving yarn lubricity, making it less likely for D450 and D900 yarns to produce loose fibers during the production process, reducing the impact of production process fluctuations on yarn quality, significantly improving yarn weaving performance, and significantly reducing fabric defects.

The invention relates to a low-temperature starch type impregnating compound as well as a preparation method and application thereof. The low-temperature starch type impregnating compound is prepared from the following raw materials in percentage by mass: 4-8% of a low-temperature starch type film-forming agent; 0.2%-1.0% of a plasticizer; 0.5%-2.5% of a lubricant; 0.05%-0.25% of an emulsifying agent; 0.04 to 0.08% of a coupling agent; 0.5 to 1.0 percent of a cross-linking agent; and the balance of water. Wherein the low-temperature starch type film-forming agent is a composition of distarch hydroxypropyl phosphate, oxidized starch and modified starch in a mass ratio of 1: 1: (1.2-1.5), and the emulsifier is a composition of isohexylene glycol and polyethylene glycol. The impregnating compound disclosed by the invention can be uniformly distributed in glass fiber yarns, so that waste is reduced, the utilization rate is increased, the bundling property, the flexibility and the lubricity of electronic yarns are enhanced, and the subsequent processing and using performance is optimized.

The invention discloses environment-friendly high-temperature-resistant polyester polypropylene fiber spinning oil and a preparation method thereof, and the environment-friendly high-temperature-resistant polyester polypropylene fiber spinning oil comprises the following raw materials in parts by weight: 40-55 parts of mixed modified silicone oil, 4-9 parts of coconut oil, 1-3 parts of an emulsifying dispersant, 2-4 parts of a bundling agent and 0.5-2 parts of a function regulator, the mixed modified silicone oil comprises carboxyl modified silicone oil, phenolic hydroxyl modified silicone oil and amino modified silicone oil, the function regulator comprises an antioxidant, an antibacterial agent and a PH regulator, and the antioxidant is modified oil-soluble tea polyphenol. The oxidation resistance and heat resistance of the spinning oil agent are improved by adding the modified oil-soluble tea polyphenol, and the heat resistance of the spinning oil agent is very good by mixing and compounding the amino modified silicone oil and the phenolic hydroxyl modified silicone oil; the durability can be improved when carboxyl modified silicone oil and amino silicone oil are mixed and compounded for fiber treatment.

The invention provides an oiling agent for carbon fibers as well as a preparation method and application thereof, the oiling agent comprises an amino modified silicone oil emulsion and an epoxy modified silicone oil emulsion, and the mass ratio of the amino modified silicone oil emulsion to the epoxy modified silicone oil emulsion is 1: (0.5-1.5); the amino modified silicone oil and the epoxy group-containing modified silicone oil are comb-shaped in structure, main chains of the amino modified silicone oil and the epoxy group-containing modified silicone oil are acrylate polymers, and branch chains of the amino modified silicone oil and the epoxy group-containing modified silicone oil are amino short silane chains or epoxy group-containing short silane chains; the preparation method of the oiling agent comprises the following steps: firstly, preparing an acrylate prepolymer by a solvent polymerization method, then respectively preparing amino modified silicone oil and epoxy group-containing modified silicone oil, and finally respectively carrying out water emulsification. The acrylate polymer is introduced into the oiling agent provided by the invention, so that the silicon content is reduced, the viscosity of the oiling agent is reduced, carbon fibers are conveniently oiled, a protective film is formed on the fibers, friction and abrasion between the fibers are prevented, and the surface defects of the carbon fibers are reduced.

The invention provides slurry for electronic-grade glass fiber cloth, the slurry is an aqueous solution and comprises effective components and water, and the effective components are respectively a water-soluble polyester main film-forming agent, a polypropylene glycol auxiliary film-forming agent, a combustion improver, a lubricant, an antistatic agent and a defoaming agent; the mass percentage of each component in the total mass of the slurry is as follows: 2.0 to 35.0 percent of a water-soluble polyester main film-forming agent, 0.5 to 13.0 percent of a polypropylene glycol auxiliary film-forming agent, 0.1 to 3.0 percent of a combustion improver, 0.03 to 1.5 percent of a lubricant, 0.02 to 1.2 percent of an antistatic agent, 0.005 to 1.0 percent of a defoaming agent and 60.0 to 97.0 percent of water. The coating property and bundling property of the sizing agent in the glass fiber can be improved, the interface bonding degree of the sizing agent and the glass fiber is improved, warp-direction weaving defects of a cloth cover are reduced, and the weaving performance of the glass fiber is improved; the sizing agent has good desizing performance and low ash content, and the produced electronic cloth has the advantages of being low in air permeability, good in impregnation performance and the like.

This application provides a carbon fiber composite material and its preparation method, belonging to the field of carbon fiber materials. The preparation method includes the following steps: providing a carbon fiber bundle; twisting the carbon fiber bundle to obtain a helical twisted carbon fiber bundle with a predetermined twist; impregnating the twisted carbon fiber bundle in a curable resin system, and applying auxiliary treatment during the impregnation process to promote the wetting of the twisted carbon fiber bundle by the resin system, obtaining an impregnated carbon fiber bundle; and curing the impregnated carbon fiber bundle to obtain the carbon fiber composite material. The technical solution of this application can fundamentally improve the torsional resistance of carbon fiber composite materials and simultaneously enhance their strength and toughness without significantly increasing process complexity and cost.

The application belongs to the technical field of chemical fiber and textile, and discloses a multi-roller oiling device and application thereof. The multi-roller oiling device comprises an oil nozzle, an oiling pump, a first oil roller, a second oil roller and a skin pressing roller which are located in the wire passing channel of the oil nozzle. The second oil roller is located below the first oil roller, the rightmost sides of the two are located on the same vertical plane and are located on the right side of the left side wall, and the rotating directions of the two are the same. The skin pressing roller is located on the right side of the second oil roller, a gap is left between the two, and the rotating directions of the two are opposite. The left side wall of the oil nozzle is provided with an oil inlet and an oil outlet, the upper surface of the protruding part of the oil nozzle is provided with a C-shaped groove connected with the oil outlet, and the first oil roller is embedded in the C-shaped groove. The cross section of the first oil roller is composed of a center circle and a plurality of C-shaped lines. The preparation method of the profiled fiber is as follows: polyester melt extrusion, cooling and forming, oiling and winding and forming. The quality and efficiency of the preparation of the profiled fiber are improved.

The invention relates to the field of spinning, in particular to starch slurry for sizing glass fiber yarns for weaving and a preparation method of the starch slurry. The method comprises the following steps: refining starch; acidolysis of starch; the preparation method comprises the following steps: mixing starch milk, a silane coupling agent and a catalyst a for reaction under inert gas and water bath heating conditions to obtain modified starch A; the silane coupling agent is prepared from vinyl trimethoxy silane, vinyl triisopropoxy silane, a silane coupling agent KH-560 or gamma-aminopropyl triethoxy silane, and the silane coupling agent is prepared from vinyl trimethoxy silane, vinyl triisopropoxy silane, a silane coupling agent KH-560 or gamma-aminopropyl triethoxy silane; mixing and reacting starch milk, a functional monomer and a catalyst b under inert gas and water bath heating conditions to obtain modified starch B; the functional monomer comprises 3-chloro-2-hydroxypropyl trimethyl ammonium chloride, butyl acrylate, sodium allysulfonate, acrylic acid or methyl acrylate; gelatinizing the starch milk, adding a textile auxiliary agent, and uniformly mixing. The starch size is applied to sizing of glass fiber yarns for weaving, the sizing rate is high, and a product has high bundling property, high wear resistance, high elasticity, excellent mechanical property and excellent flexibility.

The utility model discloses a three-dimensional suede braid with a three-layer core-spun structure, which comprises a base layer, one side of the base layer is connected with a functional layer in a sewing manner, one side of the functional layer is connected with a suede layer in a sewing manner, the functional layer comprises a breathable layer connected with the base layer in a sewing manner, one side of the breathable layer is connected with a core-spun layer in a sewing manner, and the core-spun layer is connected with the suede layer in a sewing manner. One side of the core-spun layer is fixedly connected with a bearing layer. The utility model relates to the technical field of braids. According to the three-dimensional suede braid with the three-layer core-spun structure, the base layer and the suede layer are arranged, arrangement of springs is avoided, the whole braid is convenient to produce, weave and implement, wool blended polyester is adopted on the whole surface, the surface of the braid has a suede, the braid is soft and smooth in hand feeling, the quality is improved, and later use is facilitated; in addition, the polyester fibers and the nylon fibers are adopted for bottoming weaving, so that the air permeability is kept, and meanwhile, the fabric has the functions of washing resistance, wear resistance and ultraviolet resistance.

The present invention relates to a low-temperature starch-type wetting agent and a preparation method and application thereof, which is composed of the following raw materials in mass percentage: low-temperature starch-type film-forming agent: 4-8%; plasticizer: 0.2-1.0%; lubricant: 0.5-2.5%; emulsifier: 0.05-0.25%; coupling agent: 0.04-0.08%; cross-linking agent: 0.5-1.0%; the balance is water; wherein the low-temperature starch-type film-forming agent is a composition of hydroxypropyl distarch phosphate, oxidized starch and modified starch in a mass ratio of 1:1:(1.2-1.5), and the emulsifier is a composition of isohexanediol and polyethylene glycol. The wetting agent of the present invention can be evenly distributed in glass fiber yarn, reduce waste, improve utilization, enhance the bundling, flexibility and lubricity of electronic yarn, and optimize subsequent processing and use performance.

The present invention relates to a polymer synthesis process and a carbon fiber composite material preparation process, and in particular to a short-cut carbon fiber reinforced blended modified phenolphthalein polyarylether nitrile ketone resin composite material and a preparation method thereof. The technical points are as follows: a resin with excellent processing fluidity is synthesized as an auxiliary agent to reduce the melt viscosity of a matrix resin; a sizing agent resin with good film-forming properties and containing polar groups is synthesized for surface modification of carbon fibers; the modified carbon fibers and the matrix resin are melt-blended through a twin-screw extruder to prepare a composite material. The present invention provides a sizing short-cut carbon fiber reinforced blended modified phenolphthalein polyarylether nitrile resin composite material and a preparation method thereof, which imparts good processing fluidity to the matrix resin, strengthens the degree of impregnation between the fiber and the resin, and at the same time, the sizing agent enhances the interface strength between the fiber and the resin, and the mechanical properties are significantly improved. It can be widely used in the fields of transportation vehicles, sports equipment, etc.

The purpose of the present invention is to provide: an acrylic fiber treatment agent; an acrylic fiber for carbon fiber production using the acrylic fiber treatment agent; and a method for producing carbon fibers using the acrylic fiber treatment agent. This acrylic fiber treatment agent is capable of improving the bundling property of an acrylic fiber for carbon fiber production in a fire-resistant step of the acrylic fiber for carbon fiber production. This treatment agent for acrylic fibers contains an amino-modified silicone (A) and at least one substance selected from the group consisting of a compound (B) having a five-membered ring structure containing a sulfur atom and a nitrogen atom and a derivative of the compound (B). The acrylic fiber for carbon fiber production according to the present invention is a fiber obtained by adhering the acrylic fiber treatment agent for acrylic fibers according to the present invention to the raw material acrylic fiber of the acrylic fiber for carbon fiber production.

The invention relates to environment-friendly starch slurry for sizing glass fiber yarns for high-density weaving as well as a preparation method and application of the environment-friendly starch slurry, and belongs to the technical field of textile weaving. The method disclosed by the invention comprises the following steps: preparing specific amphiphilic starch through starch refining, starch acidolysis, hydrophobic modification and functional monomer modification; gelatinizing starch; adding a specific plasticizer, a binder, a wetting agent and an antistatic agent combination into the starch slurry, heating and uniformly mixing, and cooling to obtain the environment-friendly starch slurry for sizing the glass fiber yarns for high-density weaving; according to the environment-friendly starch size for sizing the glass fiber yarn for high-density weaving and the preparation method of the environment-friendly starch size, the starch serves as a main film-forming agent, and the size has appropriate viscosity and surface tension and excellent size stability and is applied to sizing of the glass fiber yarn for high-density weaving; the sizing rate is high, and the processed product has high bundling property, high wear resistance, high elasticity, excellent mechanical property and excellent flexibility.

The present application relates to the technical field of textiles, and particularly relates to a production method of waterproof nylon yarn. The production method of waterproof nylon yarn comprises the following steps: sequentially performing plasma treatment and silane coupling agent modification on nylon filaments to obtain modified nylon filaments; mixing the modified nylon filaments and polyester elastic filaments, and sequentially performing combining, twisting and network processing to obtain composite filaments; soaking the composite filaments in a fluorine-free composite waterproof finishing liquid to perform finishing to obtain waterproof filaments; and sequentially performing first solidification and second solidification on the waterproof filaments to obtain waterproof nylon yarn after post-processing. The present application constructs a complete process system comprising fiber surface synergistic modification, yarn structure optimization, multifunctional fluorine-free composite finishing and gradient solidification crosslinking, and finally obtains high-quality waterproof nylon yarn which is environmentally friendly, has excellent waterproof performance, excellent mechanical properties and soft hand feeling.

This invention discloses a method for preparing and applying a bio-based plastic starch slurry with medium-temperature water solubility, belonging to the field of textile manufacturing technology. The invention uses native starch as raw material, utilizes amylase to hydrolyze starch to prepare branched-limit dextrin, and uses this as a plasticizer for the starch slurry. Then, amphoteric starch is prepared by grafting in a two-step process at low temperature. Finally, an ethanol-alkali method is used to treat the starch to obtain a medium-temperature water-soluble amphoteric starch slurry. The preparation, boiling, and sizing processes of this slurry all occur at temperatures not exceeding 70℃, achieving medium-low temperatures throughout the entire process. This significantly reduces energy consumption while ensuring the sizing yarn performance meets weaving requirements. Furthermore, the prepared bio-based plastic starch slurry with medium-temperature water solubility exhibits excellent sizing performance, and the sized glass fiber warp yarns possess high bundle strength, high abrasion resistance, excellent mechanical properties, and excellent softness.

The present invention addresses the problem of providing a sizing agent that improves the wettability of a matrix resin with respect to a fiber tow, a fiber tow using the sizing agent, and a fiber-reinforced composite material. [Solution] A sizing agent for fibers, which contains a compound (A) and an acetylene compound (B), the compound (A) being at least one type selected from the group consisting of a thermosetting resin (A1), a thermoplastic resin (A2) and a rubber (A3), and the weight ratio ((B) / (A)) of the acetylene compound (B) to the compound (A) being 0.0005-0.13.

The invention discloses a preparation method and application of bio-based plastic starch slurry with medium-temperature water solubility, and belongs to the technical field of textile manufacturing. According to the invention, native starch is used as a raw material, starch is hydrolyzed by amylase to prepare branched limit dextrin, the branched limit dextrin is used as a starch slurry plasticizer, then amphoteric starch is prepared by two-step grafting in a low-temperature environment, and finally, the medium-temperature water-soluble amphoteric starch slurry is obtained by ethanol-alkali treatment. The temperature of the preparation, boiling, mixing and sizing process of the size does not exceed 70 DEG C, medium and low temperature is realized in the whole process, the energy consumption is greatly reduced, the sizing performance meets the weaving requirement, and the prepared bio-based plastic starch size with the medium-temperature water solubility has excellent sizing performance, and is suitable for large-scale production. And the sized glass fiber warp yarns have high bundling property, high wear resistance, excellent mechanical property and excellent flexibility.

The present application relates to the field of textile auxiliary agent technology, and specifically discloses a high temperature resistant para-aramid spinning oil and a preparation method thereof. A high temperature resistant para-aramid spinning oil comprises the following raw materials in weight percentage: a smoothing agent 50-60%, a high temperature resistant emulsifier 10-30%, a high temperature resistant antioxidant 0.5-2%, an antistatic agent 7-15%, a high temperature resistant clustering agent 5-10%, and a high temperature resistant cosolvent 3-7%, wherein the smoothing agent is selected from pentaerythritol tetraisostearate and / or pentaerythritol tetrastearate. In addition, the preparation method of the present application has the advantage of improving the heat resistance of the aramid spinning oil.