IMPREGNATION PRETREATMENT APPARATUS FOR CONTINUOUS CARBON FIBER COMPOSITE FILAMENT MATERIAL
Disclosed in the present invention is an impregnation pretreatment apparatus for a continuous carbon fiber composite filament material, comprising a conveying assembly, wherein the conveying assembly is arranged on a pretreatment apparatus frame, sizing-layer spray assemblies being disposed on both the left side and right side of the conveying assembly, and several multi-angle cleaning assemblies being disposed in sequence at the foremost end of the pretreatment apparatus frame. The present invention overcomes the defects in the impregnation of a continuous fiber reinforced composite material by performing pretreatment on the surface thereof; that is, during a fiber spreading process, a thermoplastic sizing layer is sprayed onto a fiber surface before subsequent impregnation treatment, thereby avoiding internal defects of the filament material.
» Number: WO2025077109A1 (A1)
» Publication Date: 17/04/2025
» Applicant: NANJING UNIV OF AERONAUTICS AND ASTRONAUTICS?[CN]
» Inventor: SHAN ZHONGDE?[CN]; WANG JINGXUAN?[CN] (5)
This project has received funding from the European Union's Horizon 2020 research and innovation programme under grant agreement Nº 768737