The present invention discloses a bamboo-structure hollow flexible composite core rod and a preparation method thereof. The hollow flexible composite core rod comprises an inner surface diaphragm layer, wherein a plurality of transverse ribs are arranged inside the inner surface diaphragm layer, and cavities are formed between every two transverse ribs. An intermediate diaphragm layer is arranged outside the inner surface diaphragm layer, and resin adhesive and thin-walled fiber tubes are arranged between the inner surface diaphragm layer and the intermediate diaphragm layer. A fiberglass composite structure layer is arranged outside the intermediate diaphragm layer. The core rod prepared by the present invention is light in weight, effectively improves radial compressive strength and axial bending strength, and has good flexibility, avoiding the longitudinal splitting phenomenon easily occurring in the traditional hollow flexible composite core rod under circumferential compression force. The preparation method has simple steps, reduces manual operation and lowers use cost.
Country Code: CN
Application Number: CN202211200434.7
