Method of producing medium density fiberboard by the use of waste material

Abstract

The invention discloses a method of producing medium density fiberboards by the use of waste materials. The method produces medium density fiberboards by the use of waste timbers in Sinkiang as raw materials. Slabs (wasted scraps produced after manufactures with saws in Sinkiang use log saws for sawing plates), woods dying a nature death and dying in nature disasters, and tree branches are intensively transported for full comprehensive utilization, which takes the lead in the production of medium density fiberboards by waster materials. The produced medium density fiberboards have excellent quality with light pine fragrance, not only greatly increases the internal bonding strength, bending strength, elastic modulus and waterproof performance, but also saves plenty of natural resources for nation and simultaneously solves the practical issue of local harsh employment.

Description

technical field [0001] The invention relates to a method for producing medium density fiberboards from waste materials. Background technique [0002] Density board, also known as fiberboard, is a man-made board made of wood fiber or other plant fiber and applied with urea-formaldehyde resin or other suitable adhesives. According to its density, it can be divided into high-density board, medium-density board and low-density board. [0003] MDF is soft, impact-resistant, and easy to reprocess. It is a good material for making furniture abroad. However, because the national standard for high-density boards is several times lower than the international standard, the use quality of MDF in my country There is still room for improvement. [0004] MDF is medium density fiberboard, which is a kind of density board. It is made of wood fiber or other plant fiber. After crushing, fiber separation and drying, urea-formaldehyde resin or other suitable adhesives are applied, and then hot-...

AI Technical Summary

Problems solved by technology

[0018] Shen Shijie, a professor at Beijing Forestry University, analyzed that domestic wood-based panel companies have developed vigorously in recent years, but their scale is still relatively small, and there are widespread problems of low R&D investment, low technology content, and poor quality, resulting in a flood of low-grade wood-based panel products that are wasteful and polluting. entering the market, disrupting the normal order and fair competition of the market