Desciption
During the lamination process, the continuous carbon fiber UD unidirectional tape and the thermoplastic resin can be effectively bonded through the interface, and the unidirectional fibers will be fixed by the resin matrix. The orientation and interlayer distribution of carbon fiber tows in continuous carbon fiber unidirectional UD play a decisive role in the mechanical properties of the finished laminate in the fiber direction and vertical direction.
Generally speaking, the higher the orientation of the continuous carbon fiber in the finished plate, the greater the strength, and the vertical direction reflects the impact resistance. At the same time, the greater the interface bonding strength between the continuous carbon fiber and the resin matrix, the better the overall mechanical properties of the plate and the stronger its damage resistance.
The main threat faced by continuous carbon fiber reinforced thermoplastic sheets is interlayer damage. Places where resin distribution is concentrated or where carbon fibers are agglomerated are generally the weakest places in the sheet structure. When subjected to external forces, not only are they prone to damage between layers Separation will affect the overall performance of the board. The key to solving this problem is to avoid defects in the continuous carbon fiber tow and the resin matrix that cannot be uniformly fused during the preparation process of the continuous carbon fiber UD unidirectional tape. Zhishang New Material Technology, a domestic manufacturer of continuous carbon fiber reinforced thermoplastic composite materials, adopts a variety of optimization solutions, such as increasing the screw extrusion pressure for conveying molten resin and impregnation power to comprehensively improve the performance of thermoplastic resin on continuous carbon fiber tows. The coating uniformity increases the penetration of resin into the tow, fundamentally solving the technical problems of poor fluidity and insufficient wettability of high-end resins such as PEEK during the impregnation process.
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