Flame retardant plywood machining process

Abstract

The invention discloses a flame-retardant plywood, which comprises a base layer, a reinforcing rib layer, and a flame-retardant layer. The reinforcing rib layer is arranged between the base layer and the flame-retardant layer. 2‑3 parts of amine, 0.5‑1 part of phosphoric acid, 2‑3 parts of triethanolamine, 0.5‑1 part of boric acid, 2‑3 parts of borax, 2‑3 parts of ammonia water, 10‑15 parts of silicon carbide, 3 parts of polyurethane film former 10 parts, 5‑10 parts of diethyl phthalate, 20‑35 parts of clay. The environmentally friendly and efficient wood flame retardant produced by this production process has multiple functions such as flame retardancy, smoke suppression, and anticorrosion. etc. The impact is minimal, and the comprehensive performance of the flame retardant is excellent. Moreover, the flame-retardant ecological wood composite board series products produced by this process have the characteristics of excellent physical and mechanical properties, adjustable flame-retardant performance, environmental protection and energy saving in the production process, and obvious production cost advantages.

Description

technical field [0001] The invention relates to the technical field of flame-retardant plywood production, in particular to a process for processing flame-retardant plywood. Background technique [0002] Flame-retardant board, also known as flame-retardant board, flame-retardant plywood, flame-retardant plywood, etc., is made of logs that are cut into wood chips or sliced ​​into small wooden squares, and the wood chips are flame-retardant treated and then glued with adhesives. Three-layer or multi-layer plywood is usually made of odd-numbered layers of wood chips, and the fiber directions of adjacent layers of wood chips are glued perpendicular to each other. Flame-retardant board The flame-retardant board produced with wood as the main raw material can overcome the defects of wood and greatly improve the physical and mechanical properties of wood due to its rational structure and fine processing in the production process. At the same time, flame-retardant plywood is also I...

AI Technical Summary

Problems solved by technology

Flame-retardant board The flame-retardant board produced with wood as the main raw material can overcome the defects of wood and greatly improve the physical and mechanical properties of wood due to its rational structure and fine processing in the production process. At the same time, flame-retardant plywood is also It overcomes the shortcoming that ordinary plywood is easy to burn, and effectively improves the flame retardant performance of plywood. The production of flame retardant board is an important method to make full and reasonable use of wood and improve the performance of wood. The flame retardant performance of plywood in the existing market is general, and there are the following problems: (1) Water-soluble inorganic wood flame retardants have a significant impact on the physical and mechanical properties of the board, such as a significant decrease in static bending strength and a significant increase in water absorption; (2) Traditional organic synthetic wood flame retardants may have formaldehyde release, which affects At the same time, because most organic flame retardants are acidic to a certain extent, it will cause moisture absorption and acid decomposition of wood-based panel products during use, which will reduce the strength of the product; (3) Traditional flame retardants generally do not pay attention to the smoke suppression performance, resulting in The smoke release rate is too high, making it difficult to meet the testing requirements of current standards; (4) The applicability of flame retardants and wood adhesives will directly affect the production process of flame-retardant wood composites, which may increase the complexity of the process. lead to increased production costs