Epoxy phenolic-titanium-structure amine nano composite heatproof heavy-duty anti-corrosive paint and preparation

A nano-composite, anti-corrosion coating technology, applied in the direction of anti-corrosion coatings, coatings, etc., to achieve the effects of stable storage, strong binding force, and low mechanical strength

Active Publication Date: 2009-07-15
INST OF METAL RESEARCH - CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a new type of high-efficiency epoxy phenolic-titanium-str

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0057] 1. Preparation of nanocomposite mother liquor

[0058] After the surface-modified nano-composite mother liquor is evenly dispersed and stored stably, it can not only greatly improve the anti-corrosion performance of the coating, but also improve the mechanical properties of the coating film.

[0059] For solvent-borne coatings, the introduction of the nanoparticle phase can be done during the resin synthesis stage, or it can be added during the formulation of the coating. In the present invention, a part is firstly added in the resin synthesis stage, and then a part is added in the paint preparation process. The latter dispersion method can be ultrasonic wave, high-speed stirring, ball milling or high-speed nozzle dispersion. Regardless of the preparation method, the effect of dispersing nanoparticles by mechanical force alone is very limited, so it is necessary to modify the surface of nanoparticles to improve the interaction between them and monomers, polymer resins ...

Embodiment 1

[0067] 1. Preparation of nanocomposite mother liquor

[0068] According to the weight ratio of nano-titanium dioxide, nano-silicon dioxide, and acetone as 45:15:50, add nano-titanium dioxide and nano-silicon dioxide to acetone for ultrasonic dispersion (temperature T=40°C) for 10 minutes; The KH570 type siloxane coupling agent of gross weight 1.2%, the Disperbyk180 macromolecule dispersant that accounts for above-mentioned nano particle gross weight 1.2% and the linear phenol formaldehyde epoxy resin that accounts for above-mentioned nano particle gross weight 10%, carry out ultrasonic (T= 60℃) dispersed for 1h; finally in 2×10 4 Centrifuge 3 times at rpm for 1 hour each time to prepare the nanocomposite mother liquor.

[0069] 2. Preparation of nano-composite heat-resistant and heavy-duty anti-corrosion coatings

[0070] A component:

[0071] Linear phenol formaldehyde epoxy resin: 35 parts;

[0072] Nanocomposite mother liquor: 7 parts;

[0073] Reinforced carbon fiber:...

Embodiment 2

[0085] 1. Preparation of nanocomposite mother liquor

[0086] According to the weight ratio of nano-titanium dioxide, nano-silicon dioxide, and acetone as 36:17:40, add nano-titanium dioxide and nano-silicon dioxide to acetone for ultrasonic dispersion (temperature T=40°C) for 20 minutes; The KH560 type siloxane coupling agent of gross weight 2%, the Solsperse-2000 macromolecule dispersant that accounts for 3% of above-mentioned nanoparticle gross weight and the o-cresol formaldehyde epoxy resin that accounts for above-mentioned nanoparticle gross weight 10%, carry out ultrasonic (T=50℃) dispersed for 1h; finally at 2.5×10 4 Centrifuge twice per minute for 1.5 hours each time to prepare the nanocomposite mother liquor.

[0087] 2. Preparation of nano-composite heat-resistant and heavy-duty anti-corrosion coatings

[0088] A component:

[0089] O-cresol formaldehyde epoxy resin: 32 parts;

[0090] Nanocomposite mother liquor: 9 parts;

[0091] Reinforced carbon fiber: 7 pa...

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Abstract

The invention relates to epoxy-phenolic-titanium-structure amine nanometer compound temperature resistant heavy anti-corrosive paint and a preparation method thereof. The paint has the following formulation: 30-40 parts of epoxy phenolic resin, 5-10 parts of nanometer compound mother solution, 6-8 parts of intensified carbon fiber, 20-23 of titanium pigment, 9-12 parts of ceramic powder, 15-25 parts of mixed solvent which are well mixed according to the proportion, dispersed and ground till grain diameter is under 40mum to prepare the component A; compound firming agent comprising 4, 4'-diamino sulfobenzide, lentine and phenol-aldehyde amine and mixed solvent are prepared to form the component B; and then the component A and the component B are blended, heated and solidified for 1-3 hours to form the heavy anti-corrosive nanometer compound paint. The coating with the 0.1-1.0 mm thickness can resist the corrosion destruction of strong corrosive medium containing sulfureted hydrogen, sulfur dioxide, carbon dioxide, chloride and the like in the temperature of 80-150 DEG C and in the 1-40 high atmospheric pressure, solves the problems of high temperature acidity deep-etching in industries such as petrifaction, metallurgy, electrical powder and coal and the like, and effectively protect metal materials.

Description

technical field [0001] The invention relates to heavy-duty anti-corrosion nano-composite coating technology, in particular to an epoxy phenolic-titanium-structural amine nano-composite temperature-resistant heavy-duty coating and a preparation method thereof. Background technique [0002] Corrosion of metal materials is very serious in high-temperature acidic environment, and there have been no efficient anti-corrosion materials and protective measures to solve the corrosion problem. General temperature-resistant anti-corrosion coatings are easily decomposed in high-temperature acidic environments, have poor adhesion to substrates, low mechanical strength, and short service life in high-temperature acidic environments. Contents of the invention [0003] The purpose of the present invention is to provide a new type of high-efficiency epoxy phenolic-titanium-structural amine nanocomposite temperature-resistant Heavy-duty anti-corrosion coating and preparation method thereof...

Claims

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Application Information

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IPC IPC(8): C09D161/14C09D5/08
Inventor 王震宇韩恩厚柯伟
Owner INST OF METAL RESEARCH - CHINESE ACAD OF SCI
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