Pressure-sensitive UV (Ultraviolet) coating for woodware and preparation method thereof

Abstract

The invention discloses pressure-sensitive UV (Ultraviolet) coating for woodware and a preparation method thereof. The pressure-sensitive UV coating comprises a previous coating component and a following coating component, wherein the previous coating component is obtained by that Aspe fungi is used for decomposing cell walls of apple peels and pineapple peels to obtain organic matters, and the organic matters are activated by a collagen activating enzyme to obtain a plant organic colloid mixture taking pectin and bromelain as main components; the following coating component is obtained by thesteps: carrying out primary polymerization on an aqueous solution containing unsaturated-group polyether polyol with the mass fraction being 15%-20%, an aqueous solution containing unsaturated-grouppolyester polyol with the mass fraction being 25%-30%, a blocked isocyanate crosslinking agent, a defoaming agent and pressure-sensitive colloidal particles, carrying out ionizing and hydroxylating modification, then adopting a vinyl trimethoxyethoxysilane blocking agent to carry out saturated blocking. The pressure-sensitive UV coating disclosed by the invention has the beneficial effects that the bonding force with wood fiber is good, the ultraviolet-light hardening effect is good, the high temperature can be resisted, the hardness can be automatically increased along with increase of surface pressure, the process is pollution-free and environment-friendly and no formaldehyde is contained.

Description

technical field [0001] The invention relates to the field of environmental protection coatings, in particular to a pressure-sensitive UV wood coating and a manufacturing method thereof. Background technique [0002] The traditional paint processing mainly uses the traditional polyurethane paint PU solvent-based paint, which requires at least three consecutive spraying, polishing, and a production cycle of several days. A large number of labor requirements and site occupation have caused the furniture industry's profits to drop sharply. The cost continues to increase, and there is still a large VOC, which has an adverse impact on the environment. At the same time, the high temperature resistance is not flattering. In the actual use process, unlike the traditional coating, the hardness of the surface of the UV coating is different from that of the traditional coating. And wear resistance is poor, can not fully adapt to the working conditions, reduce the service life. Since th...

AI Technical Summary

Problems solved by technology

[0002] The traditional paint processing mainly uses the traditional polyurethane paint PU solvent-based paint, which requires at least three consecutive spraying, polishing, and a production cycle of several days. A large number of labor requirements and site occupation have caused the furniture industry's profits to drop sharply. The cost continues to increase, and there is still a large VOC, which has an adverse impact on the environment. At the same time, the high temperature resistance is not flattering. In the actual use process, unlike the traditional coating, the hardness of the surface of the UV coating is different from that of the traditional coating. And wear resistance is poor, can not fully adapt to the working conditions, reduce the service life

Since the fully environmentally friendly flame-retardant wood coatings have not really appeared, there is still no one on the market that has good adhesion to wood fibers, good UV hardening effect, high temperature resistance, self-increasing hardness with increasing surface pressure, and technological process. Green, formaldehyde-free wood coatings