Manufacturing method for environment-friendly type high-density wood and bamboo fiber board

Abstract

The invention discloses an environment-friendly type high-density wood and bamboo fiber board. The environment-friendly type high-density wood and bamboo fiber board is composed of 50%-60% of wood fibers, 20%-30% of bamboo fibers, 20%-30% of pvc, 8%-15% of medical stones and 1%-3% of environment-friendly fire retardant. A processing method for the environment-friendly type high-density wood and bamboo fiber board includes the steps of slicing, smashing, kneading, hot pressing and drying, and the environment-friendly type high-density wood and bamboo fiber board is manufactured, wherein density of the environment-friendly type high-density wood and bamboo fiber board is generally 880 kg / m<3> or above, and the thickness ranges from 2 mm to 30 mm. The environment-friendly type high-density wood and bamboo fiber board has the beneficial effects that releasing of free formaldehyde is avoided, the waterproof performance is good, the wear resisting performance is good, the flame retardant property is good, the texture of a plate face is smooth, the internal organizational structure is fine, and especially a tight edge is achieved; and the environment-friendly type high-density wood and bamboo fiber board is suitable for replacing traditional medium-and-high-density fiber boards and natural wood for serving as structural materials.

Description

technical field [0001] The invention relates to the field of preparation of environment-friendly boards, in particular to a method for making an environment-friendly high-density wood and bamboo fiber board. Background technique [0002] The medium density fiberboard currently sold on the market is made of small-diameter logs, harvesting, processing residues, and non-woody plant fiber raw materials. After slicing, cooking, fiber separation, and drying, urea-formaldehyde resin or other applicable adhesives are applied. A man-made board made after hot pressing. Composition: Wood or vegetable fibers other than wood. Density: 0.5-0.88g / cm 3 , Thickness: generally 2-30mm. MDF is a product developed in the mid-1960s, and has developed rapidly since then. The reason is that it has excellent physical and mechanical properties, decorative properties and processing properties. However, due to the addition of urea-formaldehyde resin or other adhesives with free formaldehyde in its...

AI Technical Summary

Problems solved by technology

However, due to the addition of urea-formaldehyde resin or other adhesives with free formaldehyde in its process formula, it may cause serious air pollution, and because its adhesives are mostly water-based adhesives, the waterproof performance is poor.

The production process requires the wood fiber to be digested and softened, and a large amount of steam is required from the coal-fired boiler, so there is a large amount of waste water and waste gas discharge and high energy consumption

The production process requires cooking and thermal grinding of wood materials, resulting in a large amount of waste water discharge, and boilers are required to provide a large amount of heat energy. The production process has the disadvantages of high pollutant discharge and high energy consumption.

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