Organic nano anti-corrosion coating and preparation method thereof

A kind of anti-corrosion coating, nano technology, applied in anti-corrosion coatings, epoxy resin coatings, coatings and other directions, to achieve the effect of low industrial application cost, good dispersion, low addition amount

Inactive Publication Date: 2011-03-09
SHENYANG INSTITUTE OF CHEMICAL TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] (2) There is an interface problem, and how to effectively combi

Method used

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  • Organic nano anti-corrosion coating and preparation method thereof
  • Organic nano anti-corrosion coating and preparation method thereof
  • Organic nano anti-corrosion coating and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0026] Example 1

[0027] The synthesis of nanometer mesoporous silica particles adopts the sol-gel method, and the specific implementation method is shown in Figure 2(a), (b) as monodisperse uniform spherical particles, and the spectrum shows ordered hexagonal mesopores. Structure, particle size is 60~80nm, pore size is 3~4nm, specific surface area is 732m 2 / g, the pore volume is 0.86cm 3 / g (by N 2 Adsorption-desorption test is given).

Example Embodiment

[0028] Example 2

[0029] Coating formula:

[0030] Nano mesoporous silica particles: 5% (particle size is 60~80nm);

[0031] Dispersant: 0.5%;

[0032] Dibutyl phthalate: 5%;

[0033] Xylene: 20%;

[0034] Epoxy resin (using E-44): margin.

[0035] Its dispersant composition (weight percentage):

[0036] Sodium oleate 10%;

[0037] Disperbyk-160 80%;

[0038] Toluene 10%;

[0039] The dispersant is prepared by first mixing sodium oleate and toluene at 25°C and 1 atm, so that the sodium oleate is fully dissolved in toluene, and then the Disperbyk-160 component is slowly added and mixed evenly.

[0040] Coating preparation method:

[0041] Weigh 5% of nano mesoporous silica powder, mix it with the dispersant evenly, add it to the epoxy resin mixed with other additives, and then grind and disperse it at room temperature and pressure for 30 minutes to make the paint mother liquor. Take a drop of the paint mother liquor and place it on the copper mesh carrier film. After the solvent evaporates, us...

Example Embodiment

[0044] Example 3 (by weight percentage)

[0045] The difference from Example 2 lies in the coating formula:

[0046] Nano mesoporous silica particles: 10% (particle size is 60~80nm);

[0047] Dispersant: 1%;

[0048] Dibutyl phthalate: 5%;

[0049] Acetone: 20%;

[0050] Epoxy resin (E-42): margin.

[0051] Among them, the dispersant ingredients (by weight percentage):

[0052] Potassium dodecylbenzene sulfonate 50%;

[0053] Disperbyk-161 45%;

[0054] Benzene 5%;

[0055] After accurately weighing the mother liquor, add the polyamide curing agent in a ratio of 10:6, after curing for 1 hour, smear and cure.

[0056] by Figure 4 It can be seen that the dispersion of 10% nanometer mesoporous silica particles in the epoxy resin begins to appear uneven, and there are aggregations in some places, but no agglomerates appear.

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Abstract

The invention relates to an organic nano anti-corrosion coating and a preparation method thereof, in particular to the organic nano anti-corrosion coating which adds nano-scale mesoporous silica particles with special structure (which has the dual-nano structure, that is the nano-scale particle size and the nano-scale mesoporous structure) and the preparation method thereof. The preparation is as follows: taking the following components by weight percent: 2.5-10% of nano mesoporous silica particles, 0.5-5% of dispersant, 0-10% of dibutyl phthalate, 5-25% of solvent and the balance of film forming matter; grinding and dispersing under normal temperature and normal pressure; and preparing coating mother liquor. The organic nano anti-corrosion coating has a small adding amount and low production cost, and can overcome the shortcomings of difficult dispersion of the existing nano-filler and poor compatibility between nano-particles and an organic matrix.

Description

technical field [0001] The invention relates to an organic nano anticorrosion coating and a preparation method thereof, in particular to an anticorrosion coating of nanometer mesoporous silicon dioxide particles and a preparation method thereof. Background technique [0002] Metal corrosion brings huge losses to the national economy every year. The use of nanoparticles as coating additives has become a hotspot in the research of anti-corrosion coatings. How to stably and uniformly disperse nanoparticles into the base material is the key to the application of nanoparticles in coatings. Such as adding nano-TiO to acrylic paint 2 Or nano-ZnO concentrated slurry can shield 99% of ultraviolet rays while improving the mechanical properties of the coating. Ti nano-polymer is made by high temperature and high pressure grinding, which is added into resin as a filler to make anti-corrosion and anti-fouling coatings. It has been applied in Shengli Oilfield and other units, effective...

Claims

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Application Information

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IPC IPC(8): C09D163/02C09D161/06C09D5/08
Inventor 王娜于森方庆红张秀斌王重杨凤韩文池
Owner SHENYANG INSTITUTE OF CHEMICAL TECHNOLOGY
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