A kind of preparation method of high moisture content particleboard

Abstract

The invention discloses a preparation method for a shaving board with high moisture content. The preparation method comprises the following specific steps: carrying out shaving screening on raw materials of different specifications and drying qualified shavings; weighing the shavings according to the density and the size of the to-be-manufactured shaving board and regulating the moisture content of each shaving to be 20-40 percent; enabling the sizing amount to be 5-8 percent by weight; uniformly laying the sized shavings in a mould, and hot-pressing for 8-10 minutes under the density of 700-800 g / cm<3> at the temperature of 130-140 DEG C so as to obtain the shaving board with high moisture content. The shaving board with high moisture content prepared by the method has high mechanical property and excellent size stability, such as lower water absorption and thickness swelling rate, reduces formaldehyde release quantity, and is beneficial to physical health.

Description

Technical field [0001] The invention relates to the technical field of artificial boards, in particular to a particleboard, and in particular to a preparation method of a particleboard with high moisture content. Background technique [0002] Particle board, also called particle board, particle board, bagasse board, is a wood-based board made of wood or other lignocellulosic materials and glued under the action of heat and pressure after applying an adhesive, also known as particle board. Mainly used in furniture manufacturing, construction industry, train and automobile carriage manufacturing. Because the particleboard has a relatively uniform structure and good processing performance, it can be processed into large-format panels according to needs. It is a better raw material for making furniture of different specifications and styles. The finished product particleboard does not need to be dried again, can be used directly, and has good sound absorption and sound insulation pr...

AI Technical Summary

Problems solved by technology

[0003] The traditional particleboard production process needs to have a process of drying wood shavings, the preparation process is relatively complicated, and the production cost is relatively high, and the traditional particleboard has low mechanical properties and relatively poor dimensional stability

Moreover, "trialdehyde glue" is often used as an adhesive. "Three aldehyde glue" is easy to release irritating and toxic gases (free formaldehyde, etc.) during the bonding process and in the use of finished products, which will bring certain physical harm to the environment and users.

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