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Anticorrosive paint based on modified acrylic resin and preparation method thereof

A technology of acrylic resin and anti-corrosion coatings, applied in anti-corrosion coatings, coatings, etc., can solve the problems of affecting the decorative effect and use value, becoming viscous, losing strength, and easy to become brittle, so as to overcome the two-component limitation and improve weather resistance , Hydrophobic enhancement effect

Inactive Publication Date: 2013-04-24
JIANGSU UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, as a coating, acrylic resin also has the disadvantages of being brittle at low temperature, viscous and weak at high temperature, and easy to stick back, which affects the decorative effect and use value.

Method used

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  • Anticorrosive paint based on modified acrylic resin and preparation method thereof
  • Anticorrosive paint based on modified acrylic resin and preparation method thereof
  • Anticorrosive paint based on modified acrylic resin and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] 1. Synthesis of hydroxyl-terminated polydimethylsiloxane grafted modified acrylic resin

[0023] 1. The mass percentage of raw materials and dosage is

[0024]

[0025] 2. Preparation method

[0026] Mix methyl methacrylate, styrene, isooctyl acrylate, hydroxyethyl acrylate, γ-methacryloxypropyltrimethoxysilane and azobisisobutyronitrile according to the above ratio, stir and dissolve, and dissolve in Add tetrahydrofuran into the reaction vessel, raise the temperature to 70°C, add the mixed monomers dropwise, keep warm for 5 hours after dropping, then add the mixture of dibutyltin dilaurate and hydroxyl-terminated polydimethylsiloxane dropwise, the temperature is controlled at 80°C, React for 1 hour, cool down to room temperature, and discharge.

[0027] 2. Preparation of anticorrosion coating based on modified acrylic resin

[0028] 1. The mass percentage of raw materials and dosage is

[0029]

[0030] 2. Preparation method

[0031] Pour the modified benton...

Embodiment 2

[0033] 1. Synthesis of hydroxyl-terminated polydimethylsiloxane grafted modified acrylic resin

[0034] 1. The mass percentage of raw materials and dosage is

[0035]

[0036] 2. Preparation method

[0037] Mix methyl methacrylate, styrene, isooctyl acrylate, hydroxyethyl acrylate, γ-methacryloxypropyltrimethoxysilane and azobisisobutyronitrile according to the above ratio, stir and dissolve, and dissolve in Add tetrahydrofuran into the reaction vessel, raise the temperature to 80°C, add the mixed monomers dropwise, keep the temperature for 4 hours after dropping, then add the mixture of dibutyltin dilaurate and hydroxyl-terminated polydimethylsiloxane dropwise, the temperature is controlled at 80°C, React for 1 hour, cool down to room temperature, and discharge.

[0038] 2. Preparation of anticorrosion coating based on modified acrylic resin

[0039] 1. The mass percentage of raw materials and dosage is:

[0040]

[0041] 2. Preparation method

[0042] Pour the mod...

Embodiment 3

[0044] 1. Synthesis of hydroxyl-terminated polydimethylsiloxane grafted modified acrylic resin

[0045] 1. The mass percentage of raw materials and dosage is:

[0046]

[0047] 2. Preparation method

[0048] Mix methyl methacrylate, styrene, isooctyl acrylate, hydroxyethyl acrylate, γ-methacryloxypropyltrimethoxysilane and azobisisobutyronitrile according to the above ratio, stir and dissolve, and dissolve in Add tetrahydrofuran into the reaction vessel, raise the temperature to 75°C, add the mixed monomers dropwise, keep warm for 4.5 hours after dropping, then add the mixture of dibutyltin dilaurate and hydroxyl-terminated polysiloxane dropwise, control the temperature at 80°C, and react for 1 hour , down to room temperature, and discharge.

[0049] 2. Preparation of anticorrosion coating based on modified acrylic resin

[0050] 1. The mass percentage of raw materials and dosage is:

[0051]

[0052] 2. Preparation method

[0053] Pour the modified bentonite thicke...

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Abstract

The invention discloses an anticorrosive paint based on modified acrylic resin and a preparation method thereof. The anticorrosive paint comprises the following components in percentage by mass: 20-35% of end-hydroxy dimethyl polysiloxane graft-modified acrylic resin, 20-45% of scaly zinc powder, 10-20% of spherical zinc powder, 5-10% of ferro-phosphorus powder, 1-2% of modified bentonite thickening agent and 15-20% of butyl acetate. The preparation method comprises the following steps: synthesizing silicon rubber graft-modified acrylic resin by a solution polymerization method, and evenly mixing and milling the components in proportion at high speed. The paint can be applied to the metal surface by spraying, brushing, roller coating and other means, and then dried at room temperature to form a film. The paint film has the advantages of favorable mechanical property, high corrosion resistance, high weatherability and the like. The paint film has strong adhesive force and favorable anticorrosive protecting effect on metal substrates.

Description

technical field [0001] The invention relates to a paint composition, more specifically, to a modified acrylic resin-based anticorrosion paint and a preparation method thereof. Background technique [0002] There are many anti-corrosion methods for steel structures. Anti-corrosion coatings, as the main means of industrial anti-corrosion, have been valued by many scientists and technicians for many years, and a lot of manpower and material resources have been invested in research around the world. Developed countries such as the United States, Europe, and Japan are still in a leading position. According to reports, Japan's annual consumption of anti-corrosion coatings amounts to 2 trillion yen, accounting for about 65% of the total cost of various anti-corrosion measures. It can be seen the status of anti-corrosion coatings in national economic construction. [0003] Acrylic resin paint is an important industrial decorative paint. Compared with other synthetic polymer resi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D151/08C09D5/10C08F283/12
Inventor 李为立
Owner JIANGSU UNIV OF SCI & TECH
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