Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Water-based two-component fluorosilicone acrylic anticorrosive paint and preparation method thereof

A technology of fluorosilicone acrylic polyurethane and hydroxyfluorosilicone acrylic acid is applied in the field of waterborne two-component polyurethane anti-corrosion coating and its preparation, and can solve the problems of low solid content, low cross-linking density, environmental pollution, etc.

Inactive Publication Date: 2013-09-25
JIUQING PAINT SHANGHAI
View PDF4 Cites 37 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, traditional solvent-based polyurethane coatings contain a large amount of harmful and toxic organic volatile substances, which seriously pollute the environment
With the establishment of people's awareness of environmental pollution and the establishment of environmental regulations, its application has begun to be limited.
[0003] Water-based polyurethane coatings have the advantages of non-toxic, odorless, non-flammable, non-polluting, energy-saving, etc., and more and more people pay attention to them. Single-component polyurethane coatings have low solid content, low cross-linking density, and poor coating regularity, so Water resistance, solvent resistance, chemical resistance, abrasion resistance, hardness, etc. are far behind solvent-based; while two-component water-based polyurethane coatings are cured by cross-linking with polyisocyanates to increase the cross-linking density of the coating , significantly improved performance, but these dispersions still have performance indicators such as strength, water resistance, corrosion resistance, and weather resistance of the coating film that cannot meet the ideal requirements

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 fluorosilicone acrylic anticorrosive paint and preparation method thereof
  • Water-based two-component fluorosilicone acrylic anticorrosive paint and preparation method thereof
  • Water-based two-component fluorosilicone acrylic anticorrosive paint and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0079] A. Preparation of water-based hydroxyfluorosilicone acrylic resin:

[0080] a. Nuclear raw materials:

[0081]

[0082] Among them, the nuclear pre-emulsion emulsion includes:

[0083]

[0084] b. Shell raw materials:

[0085]

[0086] Preparation:

[0087] The first step: mixing the raw materials of the nuclear pre-emulsified emulsion to prepare the nuclear pre-emulsified emulsion;

[0088] Step 2: Add deionized water, emulsifier, buffer, and initiator in the raw materials of the nuclear part into the reactor, add 1.5 g of nuclear pre-emulsified emulsion under the stirring condition of 80 rpm, and react at a constant temperature of 80-85 °C for 15 minutes to form Seed emulsion, then add the remaining 33.5 g of nuclear pre-emulsified emulsion dropwise, the dropping time is 2-3 hours, the temperature is 80-85 °C, after the addition of nuclear pre-emulsified emulsion, 80-87 °C constant temperature reaction for 1-1.5 hours, Prepare a nuclear partial em...

Embodiment 2

[0097] A. Preparation of water-based hydroxyfluorosilicone acrylic resin:

[0098] Same as Example 1

[0099] B. Preparation of water-based two-component fluorosilicone acrylic polyurethane anticorrosion coating:

[0100]

[0101] The preparation steps of waterborne two-component fluorosilicone acrylic polyurethane anticorrosion coating are as follows:

[0102] Add deionized water, other additives except thickening and leveling agent into the stirring tank, add rutile titanium dioxide, ultra-fine mica powder, ultra-fine talc powder and precipitated barium sulfate under stirring, and disperse at a high speed of 900-1400rpm for 30 minutes , and then ground to a fineness of not more than 30 μm, then transported to the paint tank, adding water-based hydroxyfluorosilicone acrylic resin and thickening and leveling agent under the stirring condition of 80-90rpm, stirring evenly, discharging, filtering, and making into a finished product Membrane material composition;

[0103...

Embodiment 3

[0106] A. Preparation of water-based hydroxyfluorosilicone acrylic resin:

[0107] Same as Example 1

[0108] B. Preparation of water-based two-component fluorosilicone acrylic polyurethane anticorrosion coating:

[0109]

[0110] The preparation steps of waterborne two-component fluorosilicone acrylic polyurethane anticorrosion coating are as follows:

[0111] Add deionized water, other additives except thickening and leveling agent into the stirring tank, add rutile titanium dioxide, ultra-fine mica powder, ultra-fine talc powder and precipitated barium sulfate under stirring, and disperse at a high speed of 900-1400rpm for 30 minutes , and then ground to a fineness of not more than 30 μm, then transported to the paint tank, adding water-based hydroxyfluorosilicone acrylic resin and thickening and leveling agent under the stirring condition of 80-90rpm, stirring evenly, discharging, filtering, and making into a finished product Membrane material composition;

[01...

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 relates to a water-based two-component fluorosilicone acrylic anticorrosive paint. A film forming material component consists of 50-70 parts of water-based hydroxyl fluorosilicone acrylic resin, 20-40 parts of a pigment / filler, 1-10 parts of an auxiliary and 3-20 parts of de-ionized water, and a curing agent component comprises 5-10 parts of aqueous polyisocyanate and 1-5 parts of a thinner, wherein the weight ratio of the film forming material to the curing agent is 100: (5-15). The preparation method comprises the steps of dispersing and grinding the de-ionized water, the auxiliary and the pigment / filler, adding the water-based hydroxyl fluorosilicone acrylic resin, and uniformly stirring the prepared film forming material with the curing agent to obtain the paint. The anticorrosive paint has the advantages that a polysiloxane-polyurethane segmented copolymer is synthesized by taking the polysiloxane as a soft segment, thus enhancing water resistance, corrosion resistance and other performances; the shell raw material, which includes a fluorine-containing acrylic monomer, guarantees excellent ultraviolet and nuclear radiation resistance, flexibility, wear resistance and durability of coating. The paint is good in compatibility, self-dried at normal temperature, non-toxic and tasteless, low in volatile organic compound (VOC) and strong in coating adhesion, and can be widely applied to large steel structure, bridge, boat and other fields.

Description

technical field [0001] The invention relates to the paint industry in the chemical industry field, in particular to a water-based two-component polyurethane anticorrosion paint and a preparation method thereof. Background technique [0002] Polyurethane coatings have many excellent properties, and they can be made into waterproof coatings, anti-corrosion coatings and decorative high-performance coatings with special functions. With acid and alkali resistance, high and low temperature resistance and other properties, it has been widely used in national defense, chemical industry, vehicle transportation, wood, aviation, construction and other fields. However, traditional solvent-based polyurethane coatings contain a large amount of harmful and toxic organic volatile substances, which seriously pollute the environment. With the establishment of environmental laws and regulations to enhance people's awareness of environmental pollution, its application has begun to be limited. ...

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): C09D175/04C09D5/08C09D7/12C08G18/62C08F220/18C08F230/08C08F220/28C08F220/06C08F220/14C08F220/22
Inventor 马保萍陈安仁窦力君史瑞瑾
Owner JIUQING PAINT SHANGHAI
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com