Processing method of bamboo blackening

Abstract

The invention discloses a processing method of bamboo blackening, which comprises the following steps: (1) preparing a material: crushing bamboo and processing residues of bamboo into bamboo power below 10 meshes, and mixing the bamboo power with a blackening agent uniformly to obtain a bamboo powder raw material according to the mass ratio of m[bamboo] to m[blackening agent] of (100:0.1)-(100:0.5); and (2) blackening and forming: paving the bamboo powder raw material into a stainless steel mold uniformly, heating and boosting, keeping the pressure and temperature for 30-70 minutes when the temperature rises to 180 DEG C-210 DEG C and the pressure rises to 3 MPa-5 MPa, keeping the pressure, stopping heating, cooling to the room temperature slowly, and releasing the pressure, so as to obtain a blackened bamboo board. The processing method of bamboo blackening is easy to realize and operate and low in production cost.

Description

technical field [0001] The invention relates to a processing method for blackening bamboo, in particular to a method for making blackened bamboo boards by using bamboo. Background technique [0002] Bamboo is one of the world-renowned fast-growing and high-yield plants, and it is also one of the first-selected fast-growing afforestation plants in tropical and subtropical regions. At present, bamboo is mainly distributed in Asia, America, Africa and other places, especially China, India, Japan, Myanmar and other countries plant a large number of bamboo plantations, with an area of ​​20 million hectares and an annual output of 18 million tons of bamboo. There are more than 130 counties (cities) with a bamboo forest area of ​​more than 10,000 hectares in my country, with a total area of ​​7 million hectares. Bamboo plantations have a short period of maturity, high output, straight stems, dense materials, and slender fibers. The main products include plywood, flooring, particle...

AI Technical Summary

Problems solved by technology

[0003] In the field of bamboo gluing processing, there are two main technical routes: one is to immerse the resin adhesive into the bamboo, relying on the linkage of the resin to promote the gluing of the bamboo, but the bamboo is dense and the resin is difficult to immerse, resulting in poor gluing effect of the bamboo The second is to uniformly mix the resin adhesive with wood (bamboo) and form it through processes such as extrusion, molding, and injection to form bamboo composite materials. The bamboo composite materials developed are difficult to industrialize because of poor interface fusion. At the same time, the amount of adhesive added is at least 12%, and the price is 3 to 5 times that of bamboo raw materials, resulting in a substantial increase in cost, while the product value increase is not obvious