Water-based two-component wood lacquer and preparation method thereof

A water-based two-component, wood lacquer technology, applied in the field of wood lacquer, can solve the problems of poor water resistance, poor low-temperature film-forming performance, low hardness, etc., and achieve the effect of improving mechanical properties, good pollution resistance, and high hardness

Active Publication Date: 2020-12-11
FOSHAN HAITE CHEM TECH
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing water-based two-component wood paints are mainly based on acrylic esters, which have the disadvantages of poor low-temperature film-forming performance, low hardness, and poor water resistance.
[0004] It can be seen that the existing two

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

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Water-based two-component wood lacquer and preparation method thereof
  • Water-based two-component wood lacquer and preparation method thereof
  • Water-based two-component wood lacquer and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0053]Correspondingly, the present invention also discloses a preparation method of the above-mentioned water-based two-component wood paint, which comprises the following steps:

[0054](1) Put 20-25 parts of water and 1.2-2.5 parts of emulsifier in an emulsifying tank, stir quickly for 10-15 minutes, and then add soft monomer, hard monomer, fluorine-containing functional monomer, methacrylic acid, methyl Hydroxyethyl acrylate, crosslinking monomer and dodecyl mercaptan, high-speed emulsification for 20-30 minutes to obtain a pre-emulsion;

[0055](2) Put the remaining water and emulsifier into the reaction tank, heat up to 80~90℃ while stirring, add 5~6% of the pre-emulsified liquid at first, stir for 1~5min, add 0.04~0.05 part of initiator, stir React for 25 to 35 minutes. When the emulsion in the reaction tank is blue and transparent, add the remaining pre-emulsion dropwise, and at the same time add the remaining initiator. After the pre-emulsion drop is completed, the initiator is ad...

Example Embodiment

[0061]Example 1

[0062]This embodiment provides an aqueous two-component wood paint, which includes a base emulsion and a curing agent, the base emulsion: curing agent=100:14, and the curing agent is toluene diisocyanate;

[0063]The formula of the base emulsion is as follows:

[0064]

[0065]Among them, the soft monomer is isooctyl acrylate, the hard monomer is methyl methacrylate, the crosslinking monomer is glycidyl methacrylate, the fluorine-containing functional monomer is hexafluoroisopropyl methacrylate, and the emulsifier The nonylphenol polyoxyethylene ether is selected, and the initiator is potassium persulfate.

[0066]The preparation method is as follows:

[0067](1) Put 25 parts of water and 1.3 parts of emulsifier in an emulsifying tank, stir quickly for 15 minutes and then add soft monomer, hard monomer, fluorine-containing functional monomer, methacrylic acid, hydroxyethyl methacrylate and Cross-linking monomer, high-speed emulsification for 25 minutes to obtain pre-emulsion;

[0068](...

Example Embodiment

[0070]Example 2

[0071]This embodiment provides an aqueous two-component wood paint, which includes a base emulsion and a curing agent, the base emulsion: curing agent=100:15, and the curing agent is hexamethylene diisocyanate;

[0072]The formula of the base emulsion is as follows:

[0073]

[0074]Among them, the soft monomer is butyl acrylate, the hard monomer is methyl methacrylate, the crosslinking monomer is octadecyl methacrylate, the fluorine-containing functional monomer is tetrafluoropropanol methacrylate, and the emulsifier is selected. A mixture of ER-20 and sodium lauryl sulfate, and ER-20: sodium lauryl sulfate=1:1, the initiator is ammonium persulfate.

[0075]The preparation method is as follows:

[0076](1) Put 23 parts of water and 2 parts of emulsifier in an emulsifying tank, stir quickly for 15 minutes and then add soft monomer, hard monomer, fluorine-containing functional monomer, methacrylic acid, hydroxyethyl methacrylate, Cross-linking monomer and dodecyl mercaptan are emulsi...

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

No PUM Login to view more

Abstract

The invention discloses a water-based two-component wood lacquer, which comprises a matrix emulsion and a curing agent in a weight ratio of 100:(10-15), wherein the matrix component is mainly preparedfrom the following raw materials: a soft monomer, a hard monomer, a cross-linking monomer, a fluorine-containing functional monomer, methacrylic acid, hydroxyethyl methacrylate, an emulsifier, an initiator and water, wherein the glass-transition temperature of the soft monomer is less than or equal to 20 DEG C, and the glass-transition temperature of the hard monomer is more than or equal to 100DEG C. Correspondingly, the invention further discloses a preparation method of the water-based two-component wood lacquer. The wood lacquer disclosed by the invention has the characteristics of low cost and good film-forming property, and a formed coating film has the advantages of high hardness, good pollution resistance, good water resistance and good boiling water resistance.

Description

technical field [0001] The invention relates to the technical field of wood lacquer, in particular to a water-based two-component wood varnish and a preparation method thereof. Background technique [0002] There are two main types of common water-based wood coatings: acrylic water-based paint and polyurethane water-based paint. Polyurethane water-based paint has good low-temperature film-forming properties, high-temperature back-adhesion resistance, high strength, and high wear resistance, but its cost is high and it is not suitable for large-scale applications; acrylic wood paints have good weather resistance and gloss. At the same time, it has a wide range of sources and low cost, but it is prone to thermal stickiness and cold brittleness, poor low-temperature film-forming performance, poor high-temperature resistance, poor chemical corrosion resistance, low hardness, and low strength. A common method is to modify the acrylate emulsion and add other resins or modifiers t...

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
IPC IPC(8): C09D175/04C09D5/16C08G18/62C08F220/14C08F220/18C08F220/32C08F220/24C08F220/06C08F220/20
CPCC08F220/14C08G18/6229C09D5/1662C09D175/04C08F220/1808C08F220/325C08F220/24C08F220/06C08F220/20C08F220/1804C08F220/1818
Inventor 郑伟洲陈保平
Owner FOSHAN HAITE CHEM TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap