Equipment for preparing continuous functionalized carbon fiber enhanced thermoplastic resin base prepreg tape

Abstract

The invention discloses equipment for preparing continuous functionalized carbon fiber enhanced thermoplastic resin base prepreg tape. The equipment comprises a yarn rack, a yarn guiding device, a spraying device, a hot press moulding device, and a reeling roller; and the yarn rack, the yarn guiding device, the spraying device, the hot pressing moulding device, and the reeling roller are sequentially arranged from the front to the rear. A functionalized carbon fiber splitting device is arranged between the yarn guiding device and the spraying device, and the spraying device is used to spray thermoplastic resin powder suspension over the splitted functionalized carbon fibers. A splitting device is added before the spraying device and the spraying device is used to spray suspension containing thermoplastic resin powder over the functionalized carbon fibers to effectively control the prepreg tape resin content so as to prepare uniform and low porosity continuous functionalized carbon fiber enhanced thermoplastic prepreg tape. The equipment has the advantages of simple structure and good production continuity.

Description

technical field [0001] The invention relates to the technical field of prepreg tape preparation equipment, in particular to a preparation equipment for continuous functionalized carbon fiber reinforced thermoplastic resin-based prepreg tape. Background technique [0002] Continuous carbon fiber reinforced thermoplastic prepreg tape is sprayed with thermoplastic resin on the surface of functionalized carbon fiber. This continuous carbon fiber reinforced thermoplastic prepreg tape has good mechanical properties (high tensile strength, high bending strength, high impact strength, high toughness, high resistance Fatigue), anti-aging, anti-corrosion, strong designability and processability, short molding cycle, and environmental friendliness. It is precisely because of the above-mentioned excellent characteristics that continuous carbon fiber reinforced thermoplastic prepreg tapes are more and more applied to the fields of light traffic rails, aerospace and other fields. At the ...

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Problems solved by technology

This patent designs a preparation equipment for staggered double-extrusion die heads, adding molten thermoplastic resin from both sides of the fiber, but due to the high melting temperature and high viscosity of thermoplastic resin, it is difficult to ensure uniform and sufficient infiltration of carbon fibers, so the The porosity of the prepared continuous carbon fiber reinforced thermoplastic prepreg tape is still relatively large

CN102328443A patent is a device for preparing continuous carbon fiber reinforced thermoplastic prepreg tape by solution impregnation method. This patent has designed a preparation device containing a secondary impregnation tank. Although the fiber can be impregnated in a box containing molten resin, it still cannot solve the problem Due to the wettability problem caused by the high viscosity of the thermoplastic resin, the resulting prepreg tape is still large in voids

At the same time, the above two methods are mainly aimed at the melt impregnation preparation process and are not suitable for the powder impregnation process.

CN102950780A patent is aimed at the preparation equipment of adding thermoplastic resin by powder impregnation method. This patent mainly designs a two-way flame spraying head, which includes two parts of powder and carrier gas channels. However, it is difficult to control the temperature and effectively control the flame method. The amount of powder applied and the uniformity of powder applied. At the same time, the spray head has both powder channels and carrier gas channels, which are prone to blockage and other problems.

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