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Polyaniline/attapulgite nano-material antirust primer and preparation method thereof

A nano-material and anti-rust primer technology, applied in the field of coatings, can solve the problems of low price, heavy odor, environmental protection and personnel hazards, and achieve the effect of improving anti-rust effect, low odor and improving anti-rust performance

Active Publication Date: 2014-09-17
CHANGZHOU GUANGHUI CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Chinese patent application No. 98116978.3 discloses a preparation method of a conductive polyaniline solvent-free anti-corrosion coating, and reports that the intrinsic state polyaniline is dissolved in polyethylene polyamine-type aliphatic polyamine as a curing agent. Bisphenol A type epoxy resin is the main film-forming substance, dioctyl phthalate is used as plasticizer, butanol, isopropanol, higher monohydric alcohol glycidyl ether, aliphatic glycidyl ester, etc. Conductive polyaniline solvent-free anti-corrosion coating composed of diluent. This invention uses aliphatic polyamine as curing agent. Since aliphatic polyamine is a volatile organic compound, it has a heavy odor during construction, which is harmful to environmental protection and personnel. The disadvantage of causing harm; in addition, polyaniline does not have an advantage in price compared with traditional antirust pigments

Method used

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  • Polyaniline/attapulgite nano-material antirust primer and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] (1) Preparation of component A:

[0041] ①. Weigh each component according to parts by weight;

[0042] ②. Add 47 parts of NC-541 cardanol-modified amine epoxy curing agent from Cardolite Company of the United States into the paint mixing tank, and stir at a speed of 1800 r / min at room temperature. Add 3 parts of R-1541 modified epoxy resin from Kunshan) Co., Ltd. into the paint mixing tank. After the addition is complete, continue to stir at 900 r / min at room temperature for 1 hour, then store for 15 hours and wait for use;

[0043] ③. On the basis of step ②, continue to add 3 parts of polyaniline / attapulgite nanomaterials, 9 parts of pigments (the weight ratio of 800 mesh zinc phosphate to 1000 mesh mica iron oxide is 1:1), and 7 parts of 1250 mesh precipitated barium sulfate and 0.3 parts of TYZOR GBA titanate chelate from DuPont Company of the United States were added to the paint mixing tank in turn. At room temperature, the materials in the paint mixing tank were...

Embodiment 2

[0047] (1) Preparation of component A:

[0048] ①. Weigh each component according to parts by weight;

[0049] ② Add 62 parts of D9340 epoxy curing agent from Shanghai Junjiang Technology Co., Ltd. Add 8 parts of 1348 modified epoxy resin into the paint mixing tank. After the addition is completed, continue to stir at a speed of 1000 r / min at room temperature for 1.5 hours, then store for 13 hours and wait for use;

[0050] ③. On the basis of step ②, continue to add 10 parts of polyaniline / attapulgite nanomaterials, 18 parts of pigments (the weight ratio of 1250 mesh aluminum tripolyphosphate to 1000 mesh mica iron oxide is 1:1.5), 1250 mesh silica powder 10 1 part and 0.6 parts of TYZOR AA-75 titanate chelate from DuPont Company of the United States were successively added to the paint mixing tank. 16 parts of LITE-2023 multifunctional resin modifier to adjust the viscosity of the slurry, continue to stir for 10 minutes, use a paint knife to stir up the slurry to fall freel...

Embodiment 3

[0054] (1) Preparation of component A:

[0055] ①. Weigh each component according to parts by weight;

[0056] ②. Put 47 parts of NC-541 cardanol-modified amine epoxy curing agent from American Cardolite company into the paint mixing tank, stir at 2000 r / min at room temperature, and slowly mix Xuya Electronic Chemicals ( Add 8 parts of R-1348 isocyanate-modified epoxy resin from Kunshan) Co., Ltd. into the paint mixing tank. After the addition is completed, continue to stir at 800 r / min at room temperature for 1.2 hours, then store for 11 hours and wait for use;

[0057] ③. On the basis of step ②, continue to add 5 parts of polyaniline / attapulgite nanomaterials, 13 parts of pigments (the weight ratio of 800 mesh zinc phosphate to 1250 mesh aluminum tripolyphosphate is 0.5:1), 1250 mesh precipitated barium sulfate 5 0.8 parts, 0.8 parts of TYZOR GBA titanate chelate compound of DuPont Company of the United States were added to the paint mixing tank in sequence. Adjust the vis...

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Abstract

The invention discloses a polyaniline / attapulgite nano-material antirust primer and a preparation method thereof. The polyaniline / attapulgite nano-material antirust primer comprises component A and component B, wherein the component A is composed of a modified epoxy resin, low molecular modified amine, a polyaniline / attapulgite nano-material, a pigment, a filling material, a coupling agent and a viscosity modifier, and the component B is a modified epoxy resin. The preparation method comprises the following steps: (1) preparation of the component A; (2) preparation of the component B; and (3) uniform mixing of the component A and the component B according to a certain weight ratio. According to the invention, the polyaniline / attapulgite nano-material, a novel organic antirust pigment, is used to replace heavy metal-containing antirust pigments like red lead powder and zinc chromate, and low molecular modified amine and a proper amount of the modified epoxy resin are combinedly used to produce a low molecular modified amine adduct; thus, the antirust primer prepared in the invention does not contain poisonous and harmful substances like heavy metals and volatile organic compounds and has the characteristics of no toxicity, environmental protection and excellent antirust performance.

Description

technical field [0001] The invention relates to the field of coatings, in particular to a polyaniline / attapulgite nanomaterial antirust primer and a preparation method thereof. Background technique [0002] All over the world, public facilities and production equipment such as large-scale bridges, buildings, vehicles, machinery and equipment made of steel can be seen everywhere. These steel facilities and equipment are subjected to water, oxygen, sulfur and chlorine in nature every moment. Corrosion of compounds such as steel, the annual economic loss caused by steel rust is tens of billions of dollars; steel rust prevention is a worldwide research topic, in order to protect steel from corrosion, people have used various antirust methods, such as: Chinese patent CN1164552 discloses a kind of anticorrosion paint and technology, is made up of primer and finish paint, wherein primer is made of chlorinated polyethylene, chlorinated paraffin, DOP, melamine formaldehyde resin, mic...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D163/00C09D5/08
Inventor 赵绍洪张辉耀蒋南昌陆小英
Owner CHANGZHOU GUANGHUI CHEM
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