Sandwich structure bamboo twined composite material product and manufacturing method thereof

Abstract

The invention discloses a bamboo winding composite material product with a sandwich structure, which sequentially includes an inner reinforcement layer, a sandwich layer and an outer reinforcement layer from the inside to the outside, and the inner reinforcement layer and the outer reinforcement layer are made of a One or more layers of resin bamboo strips are wound to form a bamboo strip layer. The sandwich layer is composed of one or more sets of alternating layers of bamboo slices in the circumferential direction and bamboo slices in the axial direction. The bamboo slice layers in the circumferential direction It is composed of a plurality of spaced circumferential bamboo segments distributed axially along the sandwich structure bamboo winding composite material product, and the circumferential bamboo segments are one or more layers of bamboo sheets adhered with resin. Formed, the axial bamboo sheet layer is formed by the axial bamboo sheet curtain formed by arranging multiple rows of bamboo sheets arranged in parallel in the axial direction adhered with resin, and wrapping one or more layers in the ring direction on the bamboo sheet layer . At the same time, it discloses a manufacturing method for manufacturing the above-mentioned sandwich structure bamboo winding composite material product. The invention can meet the required strength and rigidity of the product, and at the same time, has good overall forming effect, small thickness, short winding cycle and high efficiency, and is suitable for the manufacture of bamboo winding composite material products with large cross-sectional area. In addition, the sound absorption and noise reduction function is also improved.

Description

technical field [0001] The invention belongs to the technical field of bamboo winding molding, and more specifically relates to a bamboo winding composite material product with a sandwich structure and a manufacturing method thereof. Background technique [0002] Bamboo winding composite material is a new type of bio-based material that uses bamboo as a reinforcing material and thermosetting resin as an adhesive. Renewable, green and environmentally friendly, energy-saving and low-carbon, light and high-strength, corrosion-resistant, long service life, good thermal insulation performance, strong earthquake resistance and anti-settling ability, etc. The technical principle is to give full play to the axial tensile strength of bamboo, form a stress-free defect distribution in the product structure, and meet the strength requirements. Therefore, in the production process, the bamboo is cut into bamboo strips and formed by winding technology to ensure the mechanical strength of...

AI Technical Summary

Problems solved by technology

[0003] However, when bamboo strips are used to wind large cross-sectional area products such as pipe galleries, carriages, and houses, it will lead to excessiv

Images