2results 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.

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.