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Organic nano paint of nano mesoporous silicon dioxide particle and its preparing method

A technology of silica and nano-mesoporous, applied in the direction of epoxy resin coating, coating, etc., to achieve the effect of low industrial application cost, low addition amount, and low production cost

Inactive Publication Date: 2006-08-23
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, how to make the effective combination of the inorganic phase and the organic phase needs to be further explored

Method used

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  • Organic nano paint of nano mesoporous silicon dioxide particle and its preparing method
  • Organic nano paint of nano mesoporous silicon dioxide particle and its preparing method
  • Organic nano paint of nano mesoporous silicon dioxide particle and its preparing method

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0048] The synthesis of nano-mesoporous silica particles adopts the sol-gel method, and the specific implementation method Figure 2a-Figure 2d The transmission electron microscope photo shows monodisperse uniform spherical particles, the spectrum shows an ordered hexagonal mesoporous structure, the particle size is 60-80nm, the pore size is 3-4nm, and the specific surface area is 732m 2 / g or so, the pore volume is 0.86cm3 / g.

[0049] Among them: nanometer mesoporous silica silane coupling agent modification method:

[0050] Ingredients (percentage by weight):

[0051] Silane coupling agent 2%;

[0052] Nano Mesoporous Silica Particles 28%

[0053] n-Hexane 70%;

[0054] The modified nano-mesoporous silica particles are introduced into the inner pores and outer surfaces of the nano-mesoporous silica particles that can interact with epoxy groups (through the alkoxysilane group in the silane coupling agent) It is easy to biochemically react with the hydroxyl group in the ...

Embodiment 2

[0057] Coating Formulation:

[0058] Modified nano-mesoporous silica particles and nano-mesoporous silica particles: 2.5% (particle size is 60-80nm);

[0059] Dispersant: 0.5%;

[0060] Dibutyl phthalate: 5%;

[0061] Xylene: n-butanol=7: 3 20%;

[0062] Epoxy resin (using E-44): balance.

[0063] Its dispersant composition (percentage by weight):

[0064] Sodium Oleate 10%;

[0065] Disperbyk-160 (acrylic acid copolymer ammonium salt) 80%;

[0066] Toluene 10%

[0067] 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.

[0068] Coating preparation method:

[0069] Weigh 2.5% of nanometer mesoporous silica powder, nanometer mesoporous silica powder modified by silane coupling agent, mix them with dispersant evenly, and add them into the epoxy resin mixed with other additives , and then grind and disperse at room temperat...

Embodiment 3

[0073] Difference with embodiment 2 is that coating formula:

[0074] Modified nano-mesoporous silica particles and nano-mesoporous silica particles 5% (particle size 80-100nm);

[0075] Dispersant: 1%;

[0076] Dibutyl phthalate: 5%;

[0077] Xylene: n-butanol=7: 3 5%;

[0078] Epoxy resin (using 6458): balance.

[0079] Among them: nanometer mesoporous silica silane coupling agent modification method:

[0080] Ingredients (percentage by weight):

[0081] Silane coupling agent 5%;

[0082] Nano-mesoporous silica particles 28%;

[0083] Deionized water 67%;

[0084] The difference in the preparation of the modified nanoparticles is: slowly pour the nanometer mesoporous silica powder into deionized water, reflux and stir, and at the same time raise the temperature to 65°C, drop the silane coupling agent solution into the three-necked bottle, After the dropwise addition is completed, keep warm and continue to stir for 7 hours; after the reaction is completed, wash the so...

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Abstract

The present invention relates to nanometer organic paint and its preparation process, and is especially one kind of nanometer mesoporous organic silica particle paint and is preparation process. The nanometer mesoporous organic silica particle paint consists of nanometer mesoporous silica particle 2.5-10 wt%, dispersant 0.5-5 wt%, dibutyl phthalate 0-10 wt% and solvent 5-25 wt%, except filming agent. The nanometer mesoporous silica particle may be also modified nanometer mesoporous silica particle. The preparation process includes mixing the said materials, and grinding at normal temperature and normal pressure to disperse to form the mother liquid. The present invention has effectively improved dispersivity of nanometer particle in paint and raised compatibility between inorganic nanometer particle and organic base.

Description

technical field [0001] The invention relates to an organic nano coating and a preparation method thereof, in particular to a nano mesoporous silicon dioxide particle organic nano coating and a preparation method thereof. Background technique [0002] Due to the quantum size effect, surface effect, and macroscopic quantum tunneling effect that conventional powders do not have, nanomaterials exhibit different properties from conventional materials in terms of optics, heat, electricity, magnetism, mechanics, physics, and chemistry. Adding nanoparticles to improve the performance of traditional organic coatings is a hotspot in the field of organic coatings research, and some satisfactory research results have been obtained. Such as adding nano-SiO to coatings 2 , while improving the mechanical properties of the coating, it can also maintain the transparency of the coating film. The outdoor weather resistance of the coating can be improved by utilizing the ultraviolet absorptio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D7/12C09D163/02
Inventor 王娜富露祥李鹏
Owner SHENYANG INSTITUTE OF CHEMICAL TECHNOLOGY
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