Preparation method for fireproof oriented strand board

Abstract

The invention relates to a preparation method for a fireproof oriented strand board. The method is characterized by comprising the following steps of (1) drying: drying a wood shaving by virtue of a drying oven, wherein the drying temperature is 103 DEG C; (2) addition of a flame retardant and an auxiliary: placing the wood shaving in a stirrer, and uniformly spraying a compounded aqueous solution of boric acid / borax and dodecyl dimethyl betaine onto the shaving; (3) re-drying: drying the shaving to which the flame retardant and the auxiliary are added, wherein the moisture content of the dried wood shaving is 3 to 5 percent; (4) adhesive application: placing the wood shaving into the stirrer again, and spraying a phenolic resin adhesive onto the shaving. According to the method, the prepared oriented strand board with a flame retardant property has strong internal bonding strength, and the method can be applied to the large-scale preparation of boards.

Description

technical field [0001] The invention relates to a method for producing fireproof boards from wood shavings. Background technique [0002] With the continuous reduction of natural forest resources in our country, the continuous increase of fast-growing forests and the implementation of the policy of prohibiting the logging of natural forests and restricting the cutting of large-diameter timber, the artificial fast-growing forest and small-diameter timber are used as raw materials. Oriented strand board (OSB) with the characteristics of small expansion coefficient, good stability, strong nail holding power, low glue consumption, moderate price, and wide source of raw materials has been vigorously developed. At the same time, due to the flammability of particleboard, its application in many fields is limited, in order to overcome this disadvantage, however, in order to facilitate the preparation of fire-resistant OSB boards in a error-free and efficient manner in large-scale ma...

AI Technical Summary

Problems solved by technology

At the same time, due to the flammability of particleboard, its application in many fields is limited, in order to overcome this disadvantage, however, in order to facilitate the preparation of fire-resistant OSB boards in a error-free and efficient manner in large-scale manufacturing, There are a number of technical issues not addressed by any of the above mentioned documents that need to be carefully considered in order to provide an efficient method of producing fire rated OSB panels, necessary in such a way that the other process steps associated with the manufacture of large scale OSB panels will not be hampered or interrupted. impregnation of wood shavings