Production method of bamboo plywood

Abstract

The invention discloses a production method of bamboo plywood, comprising the following steps of: (1) preparing dry bamboo curtain splints; (2) soaking bamboo curtain splints in glue, wherein the glue is phenolic resin glue; (3) dehumidifying the glue-soaked bamboo curtain splints; (4) assembling the dehumidified bamboo curtain splints; and (5) curing in a hot-press way. The production method has the advantages that (1) compared with the conventional heat drying means, the dehumidifying means is used for drying the glue-soaked bamboo curtain splints, so that the possibility that the thermosetting type glue is cured when the heat drying process is carried out can be eliminated due to the fact that the dehumidification is carried out under 38 DEG C, so that the bonding performance of the bamboo plywood is ensured; (2) compared with the drying technology, the dehumidifying drying technology eliminates the influence of the drying technology to the product quality caused by uncertain factors, i.e. the air relative moisture content, the raw material dryness and the like, so that the dryness of the bamboo plywood glue-soaking material can be effectively controlled, and therefore, the aim of guaranteeing the product quality can be achieved; and (3) the labor intensity of workers can be reduced, and the productivity can be improved.

Description

technical field [0001] The invention relates to a production method of bamboo plywood, in particular to a production method capable of completely retaining the activity of glue and improving the gluing performance of bamboo plywood. Background technique [0002] Bamboo plywood is a board made of moso bamboo as the main structure and filling material, which is formed into a blank under high pressure and cured at high temperature. Bamboo plywood has the characteristics of high hardness, flexural resistance, strong pressure resistance, good wear resistance, and low water expansion rate. Its main uses are: building formwork, bamboo plywood pallets for the production of concrete blocks (bricks), automobile trunk boxes Board and box bottom, train car box and bottom, container board, refrigerated ship board, decorative bamboo floor and other related boards. And because bamboo is easy to cultivate, it can be felled in more than four years, and it will grow quickly. Therefore, the u...

AI Technical Summary

Problems solved by technology

[0003] In the prior art, moso bamboo is usually first processed into bamboo mats or bamboo curtains, and the bamboo mats or bamboo curtains are dried—dipping—drying—formation—hot pressing to form boards. Since the phenolic resin glue used is thermosetting Type glue, drying the bamboo curtain after soaking the glue will reduce the survival rate of the glue due to heat curing; resulting in poor gluing performance of the bamboo plywood produced

Therefore, some manufacturers now use air drying instead of drying, but the drying is very slow, and the humidity of the dipped bamboo curtain after drying cannot be accurately controlled.

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