Producing method of impact resistant solid wood composite floor

Abstract

The invention provides a producing method of an impact resistant solid wood composite floor. The producing method comprises the steps of 1, dyeing, wherein the end portions of veneers are selectivelysealed by adopting two-component polyurethane rubber, wood pipe holes are partly closed, and curing is conducted for 4-6 h at normal temperature; 2, steeping, wherein the veneers are placed in a vacuum steeping tank containing steeping liquid to be subjected to pressurized steeping, the preparing method of the steeping liquid comprises the steps that 90-150 parts by mass of polyurethane polyamineepichlorohydrin, 1-3 parts by mass of a penetrating agent, 1-3 parts by mass of an additive are mixed evenly, and the pH is adjusted to 7.5; 3, curing; 4, gluing, wherein a two-component polyurethaneresin adhesive is adopted to glue the veneers, the adhesive is prepared by adopting 100 parts by mass of polyisocyanates and 10-70 parts by mass of polyvinyl acetate emulsion as double components, adopting 1-10 parts by mass of rosin as an adhesion improving agent, and adding 1-10 parts by mass of phthalic acid ester as a defoaming agent; 5, painting.

Description

technical field

[0001] The invention relates to the technical field of floor production, in particular to a manufacturing method of an impact-resistant solid wood composite floor. Background technique

[0002] Precious tree species resources are increasingly scarce. At present, more and more attention is paid to the protection of precious tree species, and the use of precious hardwoods is increasingly restricted. In order to reduce the use of precious tree species and ensure the surface aesthetics of the wooden floor, a derivative product of solid wood flooring - solid wood composite floor came into being. To a certain extent, it overcomes the shortcomings of solid wood flooring due to wet expansion and dry shrinkage. However, due to the anisotropy of the wood itself, there are differences in the shrinkage and expansion of the wood in all directions, which may lead to defects such as cracking and warping of the wood. When the moisture content of wood varies below the fiber...