Bamboo fiber reinforced composite material and manufacturing method thereof

Abstract

The invention relates to a bamboo fiber reinforced composite material and a manufacturing method thereof. The bamboo fiber reinforced composite material is formed by directional bamboo fiber felt and an adhesive layer; the upper surface and the lower surface and the thickness direction of the directional bamboo fiber felt are respectively provided with a series of longitudinal cracks which are disconnected uniformly and have nonuniform thickness; the manufacturing method thereof comprises the following steps: longitudinally splitting a section of bamboo tube into two semicircular bamboo tubes along the diameter thereof, removing internal segments, defibering the internal arc surface of the semicircular bamboo tube by a driving roller and a defibering roller, then defibering the external arc surface of the semicircular bamboo tube, then carrying out glue applying, hot-pressing and forming the bamboo fiber reinforced composite material; the series of longitudinal cracks which are disconnected uniformly and have nonuniform thickness are defibered from both the internal arc surface and the external arc surface of the semicircular bamboo tube, simultaneously the bamboo green and bamboo yellow are also removed, therefore, the bamboo fiber reinforced composite material and the manufacturing method thereof increase the effective gluing area of the bamboo material, improve the penetration path of the bamboo materials, lead the strength and hardness of the plywood to be greatly improved and having good processing performance.

Description

technical field [0001] The invention relates to a bamboo fiber reinforced composite material and a manufacturing method thereof, especially suitable for wind power blade materials, building structural materials, building templates, car floor panels, decorative materials, furniture materials and floors that require high strength, high hardness and good processing performance and other structural and decorative materials. Background technique [0002] At present, the existing utilization of bamboo boards is to first process bamboo into bamboo strips, bamboo slices or bamboo bundles, then apply glue, and then process them into billets and glue. Bamboo boards such as bamboo strips, bamboo pieces or bamboo bundles Bamboo green and bamboo yellow need to be removed for the basic unit of chemical processing, which is not only complicated to process, but also requires a lot of manual operations, and the waste of cutting and processing bamboo is large, and the strength of bamboo raw m...

AI Technical Summary

Problems solved by technology

[0002] At present, the existing utilization of bamboo boards is to first process bamboo into bamboo strips, bamboo slices or bamboo bundles, then apply glue, and then process them into billets and glue. Bamboo boards such as bamboo strips, bamboo slices or bamboo bundles Bamboo green and bamboo yellow need to be removed from the basic unit of chemical processing, which is not only complicated to process, but also requires a lot of manual operations, and the waste of bamboo in cutting and processing is large, and the strength of bamboo raw materials is also reduced. At the same time, the waste of glue is also large.

[0003] Recently, Chinese patent 02120518.3 has provided a kind of small-diameter bamboo that is less than 80mm in diameter as raw material, because the wettability of green bamboo is poor, and gluing performance is also low, firstly adopt bamboo wood degreening machine or sand blasting degreening machine to remove green bamboo on the outer arc surface of bamboo. , and then use a bamboo cutting machine to split the bamboo, and then use a bamboo rolling machine to roll it into bamboo bundles that are not broken in the horizontal direction and loose in the vertical direction. The process is more complicated, and the production efficiency of removing the green bamboo of small-diameter bamboo is lower, and the bamboo yellow on the inner surface of the bamboo is not removed. More importantly, the bamboo bundles rolled out by the rolling machine have uneven thickness. , The length is different, it is difficult to achieve uniform distribution, and the sizing and moisture content are bound to be uneven. In fact, the strength and hardness of the pressed plywood are limited.

Images