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 conten

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

Example Embodiment

[0078] Example 1

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

[0080] a. Nuclear raw materials:

[0081]

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

[0083]

[0084] b. Shell material:

[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 from the core raw materials into the reactor, add 1.5 g of the core pre-emulsified emulsion under stirring at 80 rpm, and react at 80-85°C for 15 minutes to form Seed emulsion, and then drop the remaining part of 33.5 g nuclear pre-emulsified emulsion, dripping time 2 to 3 hours, temperature 80-85 ℃, after the nuclear pre-emulsified emulsion is dropped, 80-87 ℃ constant temperature reaction for 1 to 1.5 hours, Prepare the core part emulsion;

[0089] The third step: add the shell part raw materials except t...

Example Embodiment

[0096] Example 2

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

[0098] Same as Example 1

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

[0100]

[0101] The preparation steps of water-based two-component fluorosilicone acrylic polyurethane anticorrosive coating are as follows:

[0102] Add deionized water and other additives except thickening and leveling agent into the stirring tank, add rutile titanium dioxide, superfine mica powder, superfine talc powder and precipitated barium sulfate under stirring, and disperse at 900~1400rpm for 30min at high speed , Then grind finely, the fineness is not more than 30μm, and then transport to the paint filling, add the water-based hydroxy fluorosilicone acrylic resin and the thickening and leveling agent under the stirring condition of 80-90rpm, stir evenly, discharge, filter, and make it into Membrane material components;

[0103] Add the dilu...

Example Embodiment

[0105] Example 3

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

[0107] Same as Example 1

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

[0109]

[0110] The preparation steps of water-based two-component fluorosilicone acrylic polyurethane anticorrosive coating are as follows:

[0111] Add deionized water and other additives except thickening and leveling agent into the stirring tank, add rutile titanium dioxide, superfine mica powder, superfine talc powder and precipitated barium sulfate under stirring, and disperse at 900~1400rpm for 30min at high speed , Then grind finely, the fineness is not more than 30μm, and then transport to the paint filling, add the water-based hydroxy fluorosilicone acrylic resin and the thickening and leveling agent under the stirring condition of 80-90rpm, stir evenly, discharge, filter, and make it into Membrane material components;

[0112] Add diluent...

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 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