Anti-impact polyurethane surface decorating material

Abstract

The invention discloses an anti-impact polyurethane surface decorating material. Two processes are included. The primer line processing technology process includes the specific steps of (1) fixed-thickness sanding and dust removal; (2) roller coating of a back seal coat and curing for forming of a first UV seal coat layer; (3) two times of roller coating of a UV penetrating agent; (4) infrared leveling; (5) front coating of UV putty and UV curing for forming of a UV putty layer; (6) three times of roller coating of a UV seal coat and separate curing for forming of three second UV seal coat layers; and (7) finish sanding. The finishing coat line roller-coating technology process includes the specific steps of (1) dust removal; (2) roller coating of UV glue for forming of a first UV glue layer; and (3) five times of coating of a UV finishing coat and curing for forming of five UV finishing coat layers. Strong permeation, rapid permeation and deep permeation of a UV curing penetrating agent with a fiber-reinforced calcium silicate board or a fiber cement board can be avoided, films are formed by deep curing, and a three-dimensional chemical meshed crosslinking reaction is achieved with UV putty and UV seal coats so that the problem of adhesion force between a decorating surface layer and a base board can be solved.

Description

technical field [0001] The invention relates to a decorative board and a production method thereof, in particular to an impact-resistant polyurethane surface decoration material. Background technique [0002] With the development of society and the continuous improvement of people's living taste, people have also put forward higher requirements for the color and pattern of the interior and exterior walls of buildings, hoping that the patterns and colors of the exterior walls of buildings will be more dazzling and colorful. However, there are the following difficulties in decorating the exterior walls of buildings: 1. The plates used for building exterior wall decoration are mainly fiber-reinforced calcium silicate boards or fiber cement boards, and ordinary coatings on fiber-reinforced calcium silicate boards or fiber cement boards Coatings are prone to poor adhesion between coating layers, poor adhesion between coating layers and plates, poor boiling water resistance of pla...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide an impact-resistant polyurethane surface decoration material, which can solve the problem of strong penetration, rapid penetration, deep penetration of ultraviolet light curing penetrant and fiber reinforced calcium silicate board or fiber cement board, and deep curing film formation , and form a three-dimensional chemical network cross-linking reaction with UV putty and UV sealing paint, completely solve the problem of adhesion between the decorative surface layer and the substrate, so as to solve the problem of coating on fiber-reinforced calcium silicate board or fiber cement board. Problems such as poor adhesion between coating layers, poor adhesion between coating layers and plates, poor resistance to boiling water and cracking of plates occur, and efficient industrial production can be realized, thereby greatly reducing the production cost of plate making