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Guangwei Composite: Thermoplastic carbon fiber composite products have been developed! 2025-03-06 Recently, Guangwei Composite stated on an interactive platform that the company has been continuously working on the research and development of thermoplastic prepregs, including PEEK. To date, it has developed thermoplastic carbon fiber composite products such as PEEK prepreg yarns and prepreg tapes, and is currently working on the development of related production lines. Compared to traditional thermosetting composites, thermoplastic composites offer advantages such as being environmentally friendly/degradable, repairable, requiring less stringent storage conditions, and enabling faster molding. They hold great potential for application in various fields including commercial aviation, high-end industrial equipment, and various new applications such as humanoid robot structures; however, industrial applications related to these composites are still in their early stages of development. Recently, Guangwei Composite applied to have an invention patent titled “Ultra-thin carbon fiber prepreg and its production process” published, with the application date set for February 11, 2025. The innovations of this patent are mainly reflected in the following aspects: High-precision yarn spreading device: The patent introduces a high-precision yarn spreading device that, through the combined vibration of a vertically vibrating yarn spreading rod and a horizontally vibrating yarn spreading rod, enables the even spreading of carbon fibers, reduces fiber damage, and improves the uniformity of fiber distribution. Control of fiber surface density: Thanks to this high-precision yarn spreading device, the patent enables the fiber surface density to be 20 g or less, with fluctuations in fiber surface density of 1 g or less, thereby improving the precision of the prepreg. Resin impregnation process: In the patent, thermosetting epoxy resin is used as the matrix resin. By controlling the temperature of the heating rollers (97°C to 100°C), the resin can flow more effectively and impregnate the carbon fibers, ensuring that the resin is evenly and completely absorbed by the carbon fibers. Production of ultra-thin prepregs: The patented production process enables the manufacture of carbon fiber prepregs with an extremely thin single-layer curing thickness, which are suitable for producing composite products with complex structures or very thin dimensions.