A kind of high-strength environmental protection plywood

Abstract

The invention relates to the technical field of plywood, in particular to a high-strength environment-friendly plywood, including a backboard, the upper surface of the backboard is coated with a phenolic adhesive layer and a core board is bonded and fixed through the phenolic adhesive layer; The upper surface is also bonded and fixed with a waterproof layer through the coated phenolic adhesive layer; the upper surface of the waterproof layer is fixedly connected with a drainage layer; the upper end of the drainage layer is fixedly installed with a surface plate. In the present invention, by setting the drainage layer, the water flowing down from the gaps between the transverse plates connected by different plywoods will be drained through the drainage grooves set on the board body, while the water flowing down from the gaps between the longitudinal plates connected by the plywoods will pass through the L-shaped spacers arranged inside the accommodating chambers. Through the combination of horizontal and vertical drainage, the water entering the connection gap between different plywood can be discharged, thereby preventing seawater from entering the connection position between the bottom of the plywood and the steel deck, and further corroding the steel deck. Improved corrosion protection for marine plywood.

Description

technical field [0001] The invention relates to the technical field of plywood, in particular to a high-strength environment-friendly plywood. Background technique [0002] Plywood is one of the three major boards of wood-based panels, which can be used for aircraft, ships, trains, automobiles, buildings and packaging boxes. A group of veneers is usually glued together in vertical direction according to the wood grain direction of adjacent layers. Usually The surface board and the inner board are symmetrically arranged on both sides of the center layer or the board core, and the slabs made of the veneer coated with glue are criss-crossed according to the direction of the wood grain, and are pressed under heating or non-heating conditions. , plywood can improve the utilization rate of wood, which is a main way to save wood. [0003] Ship plywood is a special kind of plywood. It is used for deck and interior decoration in the shipbuilding industry. It is usually laid on the s...

AI Technical Summary

Problems solved by technology

[0005] Although the above comparative patents set the upper and lower layers to be waterproof, which increases the waterproof performance of the plywood, but for the special plywood used on the deck of the ship, such as a fishing vessel, a large amount of seawater will fall on the plywood following the fishing net during the fishing process. However, when the plywood is spliced ​​together, it is usually not completely sealed, and the remaining gap will still allow seawater to enter the joint between the bottom of the plywood and the steel deck. Due to the high salinity of the seawater, the steel deck will be corroded, reducing the Corrosion protection of plywood

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