Waterborne fluorocarbon coating for corrosion prevention as well as preparation method and application thereof

A fluorocarbon coating, water-based technology, applied in the direction of anti-corrosion coatings, coatings, etc., can solve the problem of improving the acid and alkali resistance and salt spray resistance of the coating film, and the gap between water resistance and acid and alkali resistance of single-component thermoplastics Larger, limited cross-linking density and other problems, to achieve the effect of no fire hazard

Inactive Publication Date: 2014-10-29
WUHAN TIESHEN CHEM
View PDF12 Cites 13 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Or adopt the one-component fluorocarbon finish paint that water-based silane coupling agent is formed, as invention patent publication number CN103450719A, CN103122186A, CN103788783A etc. all use silane coupling agent to carry out coating modification, wherein the single-component thermoplastic type is far behind the cross-linked type in water resistance and acid and alkali resistance performance. Large, one-component internal crosslinking emulsifying curing agent (diacid dihydrazine type) fluorocarbon topcoat and silane coupling agent type fluorocarbon topcoat have crosslinking, but due to the limited crosslinking density, the coating film itself cannot Acid and alkali resistance and salt spray resistance have been greatly improved

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
  • Waterborne fluorocarbon coating for corrosion prevention as well as preparation method and application thereof
  • Waterborne fluorocarbon coating for corrosion prevention as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] (1) Put 20 parts by weight of deionized water in a container, and add 75 parts by weight of rutile titanium dioxide and 0.6 parts by weight of BP-187 water-based bentonite (Zhejiang Linan Huate New Material Co., Ltd. Co., Ltd.), 5 parts by weight of wetting and dispersing agent BYK191 (Germany BYK Chemical Co., Ltd.) and 0.2 parts by weight of defoamer 090 (Taiwan Deqian Chemical Co., Ltd.), and then add 120 parts by weight of glass beads to Grinding at a speed of 2000 rpm to a fineness of 35 μm to obtain a titanium white slurry;

[0037] (2) Put 70 parts by weight of water-based fluorocarbon resin (BY-5607 fluorine-modified hydroxyl-containing dispersion of Beijing Baiyuan Chemical Co., Ltd.; solid content 45%, hydroxyl content 2.7%) in a container, and add in sequence under low-speed stirring 9.7 parts by weight of deionized water, 0.2 parts by weight of leveling agent BYK381 (Germany BYK Chemical Co., Ltd.), 0.1 parts by weight of defoamer 090 (Taiwan Deqian Chemical...

Embodiment 2

[0043] (1) Put 20 parts by weight of deionized water in a container, and add 75 parts by weight of rutile titanium dioxide, 0.6 parts by weight of water-based bentonite, and 5 parts by weight of wetting and dispersing agent BYK191 ( German BYK Chemical Co., Ltd.) and 0.2 parts by weight of defoamer 090 (Taiwan Deqian Chemical Co., Ltd.), after stirring evenly, add 120 parts by weight of glass beads, and grind at a high speed of 2000 rpm to a fineness of 35 μm to obtain Titanium white paste;

[0044] (2) Put 54.5 parts by weight of deionized water in a container, and add 15 parts by weight of wetting and dispersing agent BYK191 (Germany BYK Chemical Co., Ltd.), 30 parts by weight of carbon black in turn under the condition of stirring at a low speed of 400 rpm , 0.3 parts by weight of BP-187 water-based bentonite (Zhejiang Lin'an Huate New Material Co., Ltd.), and 0.2 parts by weight of defoamer 090 (Taiwan Deqian Chemical Co., Ltd.), stir well and then add 120 parts by weight ...

Embodiment 3

[0055] The fluorocarbon coating for the PET film obtained in Example 2 was applied to prepare a coated PET film. The preparation method of described coating PET film follows the following steps:

[0056] (1) Pre-treatment of the steel structure; that is, sandblasting the surface of the steel structure.

[0057] (2) Spray, roll or brush anti-corrosion zinc-rich primer on the pre-treated steel structure;

[0058] (3) The steel structure after the primer is dried at room temperature for more than 8 hours.

[0059] (4) Spray, roll or brush the anti-corrosion cloud iron intermediate paint on the dry zinc-rich primer

[0060] (5) The steel structure after the intermediate paint is dried at room temperature for more than 8 hours

[0061] (6) Mix component A and component B according to the weight ratio of 5:1, add a small amount of deionized water to adjust the viscosity to 30-60 (seconds / 25°C, apply 4# cup), and apply it on the dry micaceous iron intermediate paint Spray, roll o...

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 waterborne fluorocarbon coating for corrosion prevention as well as a preparation method and application of the coating. The preparation method comprises the following steps: adding de-ionized water into a container, adding an anti-settling agent, a wetting agent, a dispersant, a defoamer and a pigment in sequence under the low-speed stirring condition, after uniformly stirring, adding glass beads, and grinding at a high speed to obtain color paste; adding waterborne fluorocarbon resin into the container, adding de-ionized water, an assistant and the color paste obtained in the step (1) in sequence under the low-speed stirring condition, dispersing at a high speed, and filtering to obtain a component A of the coating; adding waterborne isocyanate resin into the container, and adding a solvent under the low-speed stirring condition to obtain a component B of the coating. The coating is applied to preparation of steel structure coating products; the obtained coating has good protection functions such as water resistance, chemical resistance, salt mist resistance and weather resistance; steel structure plates are long in service life.

Description

technical field [0001] The invention belongs to the technical field of anti-corrosion paint preparation, in particular to a water-based anti-corrosion fluorocarbon paint and its preparation method and application. Background technique [0002] Fluorocarbon paint has excellent weather resistance, chemical corrosion resistance and stain resistance, and is an anti-corrosion finish paint with excellent performance. At present, high-temperature baking paints represented by solvent-based PVDF are applied to various pre-coated metal building materials; two-component room-temperature-drying fluorocarbon coatings represented by solvent-based FEVE have been applied to large steel structures, building exteriors, etc. wall. Many fluorocarbon coating projects still maintain a certain gloss and color after ten to twenty years of testing, and there is no serious corrosion; therefore, solvent-based fluorocarbon coatings have begun to gain popularity in different fields, especially in the a...

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 Applications(China)
IPC IPC(8): C09D127/12C09D5/08C09D7/12
Inventor 施铭德刘思平周春爱吴国利
Owner WUHAN TIESHEN CHEM
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