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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 combine the inorganic phase with the organic phase needs further exploration

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

Embodiment 1

[0027] The synthesis of nano-mesoporous silica particles adopts the sol-gel method, the specific implementation method Figure 2 (a), (b) transmission electron microscope photos show monodisperse uniform spherical particles, and the spectrum shows ordered hexagonal mesoporous structure, the particle size is 60-80nm, the pore size is 3-4 nm, and the specific surface area is 732m 2 / g or so, the pore volume is 0.86cm 3 / g (by N 2 Adsorption-desorption test is given).

Embodiment 2

[0029] Coating Formulation:

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

[0031] Dispersant: 0.5%;

[0032] Dibutyl phthalate: 5%;

[0033] Xylene: 20%;

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

[0035] Its dispersant composition (weight percent):

[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 to fully dissolve the sodium oleate in toluene, then slowly adding the Disperbyk-160 component and mixing evenly.

[0040] Coating preparation method:

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

Embodiment 3

[0044] Embodiment 3 (by weight percentage)

[0045] Difference with embodiment 2 is that 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 (E-42): Balance.

[0051] Wherein the dispersant composition (by weight percentage):

[0052] Potassium dodecylbenzenesulfonate 50%;

[0053] Disperbyk-161 45%;

[0054] Benzene 5%;

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

[0056] Depend on Figure 4 It can be seen that the addition of 10% nanometer mesoporous silica particles in the epoxy resin began to disperse in an inhomogeneous state, and aggregation appeared in some positions, but no agglomerates appeared.

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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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