Reinforced composite bamboo board and its manufacturing method

Abstract

The invention discloses a strengthening composite bamboo board and preparing method, which consists of net bamboo fiber bundle layer and surface layer, wherein the net bamboo fiber bundle layer is composed of parallel grain and cross grain. The invention is prior to wood fiber board, which prevents the common bamboo board (bar structure of multiple-layer parallel adhesion) from deforming and uneven strength.

Description

technical field [0001] The invention relates to a composite bamboo board suitable for building structure boards, furniture boards, and floor decoration boards, especially a reinforced composite bamboo board with consistent isotropic performance and texture characteristics of ordinary bamboo floors and its manufacture method. Background technique [0002] Bamboo floor is a kind of bamboo wood-based panel. Bamboo flooring has high surface hardness, good foot feeling, wear resistance, beautiful texture, and elegant color, giving people the feeling of returning to nature, so it is very popular among people. At present, the bamboo floor structure has a multi-layer parallel glued strip structure and a single-layer mosaic square structure. The multi-layer parallel glued strip structure can be divided into string-to-face bamboo floor and radial-face bamboo floor. [0003] The current bamboo floor generally has the following disadvantages: [0004] 1. The ...

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Problems solved by technology

[0005] 2. The material utilization rate is low. The cross-section of moso bamboo is arc-shaped. It is too wasteful to process it into a rectangular floor board; in addition, the bamboo tip cannot be used.

[0006] 3. The finished bamboo floor is easy to deform. During use, due to changes in environmental conditions such as temperature and humidity, the process of water absorption and dehydration of the bamboo material alternates, and the difference in deformation between the bamboo blocks of the blank forms the entire bamboo floor. warpage

[0007] 4. Bamboo flooring is prone to mildew and insects. Due to the large area of ​​the bamboo blocks that are assembled, the individual bamboo blocks are not completely wrapped by the rubber material. Because the bamboo material contains a large amount of sugar substances that are easy to mildew, it is easy to Bacteria and mildew

[0008] 5. In addition, the bamboo floor produced by the existing method also has the disadvantages of low strength, low density and poor water resistance.

[0010] However, there are still many disadvantages in the existing production method of recombined bamboo. The efficiency of broken filaments is low, and the bamboo fibers become monofilaments; If the pressure is too high, the requirements for presses and other series of production equipment are too high, and it is difficult to produce on a large scale; the slab does not have the characteristics of consistent isotropic performance, the strength along the fiber direction is high, and the strength perpendicular to the fiber direction is too low, even lower than the general Bamboo flooring; large-scale molds are required for implementation, which increases production costs; some involve the simultaneous use of multiple resins, which leads to difficulties in actual production, such as two sets of glue sizing systems and two sets of storage material systems, etc. Sexual problems and equipment investment problems

[0011] Existing recombined bamboo has not really fully utilized the structural characteristics of bamboo composite boards, and failed to avoid the deformability problem of ordinary bamboo floors (including wood floors); some can only obtain a kind of bamboo fiber reinforced composite material, while Reinforced composite bamboo panels not based on bamboo fiber and decorated with bamboo surface

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