Veneer plywood capable of efficiently adsorbing formaldehyde and preparation process of veneer plywood

Abstract

The invention discloses veneer plywood capable of efficiently adsorbing formaldehyde and a preparation process of the veneer plywood, and relates to the field of plywood preparation. The veneer plywood is prepared from the following raw materials in parts by weight: 100-120 parts of waste moso bamboo; 180 to 200 parts of coconut shell and 180 to 200 parts of rice husk; 30 to 45 parts of mica powder; 30 to 60 parts of a water-based polymer isocyanate adhesive; 13 to 15 parts of polytetrafluoroethylene emulsion; 7 to 10 parts of a composite nano suspension; 20 to 25 parts of lignocellulose; 35 to 40 parts of environment-friendly water glue and 20 to 25 parts of melamine glue. On the one hand, formaldehyde can be effectively adsorbed, the average formaldehyde adsorption amount is 0.95 mg / m<2>, the average formaldehyde purification rate is 97.5%, a remarkable adsorption effect is achieved, the amount of harmful molecules in later gas is small, the desorption amount is only 2.37% of the formaldehyde purification amount even when the indoor formaldehyde reaches the peak value, and a very good formaldehyde stabilizing effect is achieved; the mica powder and the polytetrafluoroethylene emulsion are added, so the plywood has good mechanical property, weather resistance, oil resistance and stain resistance, and is easy to clean and good in sanitation property.

Description

technical field

[0001] The invention relates to the field of plywood preparation, in particular to a veneer plywood capable of efficiently absorbing formaldehyde and a preparation process thereof. Background technique

[0002] Plywood is a three-layer or multi-layer board-like material that is made of wood sections that are peeled into veneers or sliced ​​into thin wood, and then glued with adhesives. Usually, odd-numbered veneers are used, and adjacent layers of veneers are used. The fiber directions are glued perpendicular to each other.

[0003] At present, most boards are decorated with solid wood boards, which will consume a lot of bamboo and wood, but forest resources are limited, which seriously affects the ecological environment, and a large amount of rice husks will be produced during the harvest season in rural areas. Traditionally, coconut husks and rice The shells are discarded directly, resulting in a lot of waste of resources, and although some plywood is made...