4results about How to "Improve clustering" patented technology

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 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.