Unlock instant, AI-driven research and patent intelligence for your innovation.

A kind of preparation method of anti-scratch polyurethane wood matte black topcoat

An anti-scratch, polyurethane technology, applied in the direction of polyurea/polyurethane coatings, coatings, etc., can solve problems such as troublesome manufacturers and engineering and technical personnel, fingerprints are not easy to disappear, not resistant to scratches, etc., to achieve good interlayer adhesion, Improve scratch resistance, no ghosting effect

Active Publication Date: 2016-03-30
UNION FOSHAN CHEM +1
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Today's huge wood paint market has higher and higher requirements for paint products. Especially wood polyurethane (PU) paint has excellent comprehensive performance and is widely used by consumers. However, the product has many shortcomings, such as whitening, foaming, and peeling. layer, not resistant to scratches, ghosting, fingerprints are not easy to disappear, etc.
These problems bother manufacturers and engineers and technicians, and some problems have not been solved for a long time

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] According to the formula weight ratio, add 25 parts of mixed solvent to the dispersion tank, add 50 parts of alkyd resin with 60% solid content, add Mix 9 parts of carbon black dispersant evenly, slowly add 15 parts of special 4 carbon black, then disperse at a high speed of 1000-1200r / min for 45-60min, and then grind it in a horizontal sand mill for 4-6 times until the color paste The fineness and particle size meet the requirements of ≤10μ, move to the paint bucket to defoaming and adjust the viscosity, filter and package to obtain solvent-based carbon black paste.

Embodiment 2

[0026] According to the formula weight ratio, add 13 parts of mixed solvent, add 50 parts of alkyd resin with 60% solid content, stir evenly, then add 4 parts of matting powder and 0.5 part of dispersant, disperse at high speed for 30-40 minutes, stir at low speed Add 30 parts of carbon black slurry, 0.3 part of titanate-modified silicone chelating leveling agent, 0.2 part of modified siloxane defoamer, and 2 parts of polyamide wax. Scratch resistant polyurethane wood matt black finish nail component.

Embodiment 3

[0028] Add 40 parts of TDI / TMP adduct, 30 parts of HDI trimer, and 30 parts of mixed solvent into the dispersing bucket and stir evenly. After passing the test, filter and package to obtain the second component of the anti-scratch polyurethane wood matte black finish. .

[0029] Adjust the paint according to the ratio of component A: component B = 1:0.5, and add thinner to adjust the viscosity that can be painted.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
particle sizeaaaaaaaaaa
Login to View More

Abstract

The invention relates to a preparation method of a scratch-resistant polyurethane matt black finish for woodware. The scratch-resistant polyurethane matt black finish comprises a resin paint component A and a curing agent component B in the weight ratio of 1: 0.5, wherein the resin paint component A comprises alkyd resin, extinction powder, a dispersing agent, carbon black paste, a modifying flatting agent, an antifoaming agent, an anti-settling agent and a solvent; and the curing agent component B comprises a TDI-HDI (Toluene Diisocynate-Hexamethylene Diisocyanate) mixed tripolymer or a TDI / TMP (Trimethylolpropane) affixture, an HDI tripolymer and a solvent. The scratch-resistant double-component polyurethane matt black finish for woodware, prepared by the preparation method provided by the invention, brings no precipitate during being stored, is high in solidity, low in viscosity and excellent in leveling property; and the filming can be realized at one time, and the film is thick, free from sagging, and soft, full, fine, smooth, slippery in hand feel, shows alternate kindness with severity, is given the effect of full decoration like a mirror plane, brings a graceful and comfortable feel, and is adapted to modern aesthetic view and widely popular with the market and customers. The scratch-resistant polyurethane matt black finish is widely applied to protective decoration of surfaces of products such as the woodware, metals and plastics.

Description

technical field [0001] The invention relates to a preparation method of a two-component polyurethane wood matte black finish, in particular to a scratch-resistant polyurethane wood matte black finish suitable for various types of wood. Background technique [0002] With the improvement of people's material and cultural living standards, consumers have higher and higher requirements for the painting effect of furniture, which has led to the rapid growth of domestic wood coatings. The coating effect of furniture surface will directly affect consumers' choice of furniture, and matte wood paint occupies a large market share in the furniture coating market. Today's huge wood lacquer market has higher and higher requirements for paint products. Longqi is wood urethane (PU) paint with excellent comprehensive performance and is widely used by consumers, but the product has many shortcomings, such as whitening, foaming, peeling layer, not resistant to scratches, ghosting, fingerprin...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): C09D175/14C09D7/12
Inventor 许钧强李泽刚康伦国欧永杰姚东生
Owner UNION FOSHAN CHEM