Organic protective paint having low adding quantity of nano titanium particle and its preparation method

A technology of protective coatings and additions, applied in epoxy resin coatings, coatings, etc., to achieve the effect of low industrial application cost and low additions

Inactive Publication Date: 2008-01-09
INST OF METAL RESEARCH - CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, researchers have synthesized nano-Ti organic polymers by high-temperature polymerization. Adding them to traditional organic coatings can greatly improve the anti-corrosion performance of coatings, but the addition of nano-Ti organic polymers is about 10%.

Method used

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  • Organic protective paint having low adding quantity of nano titanium particle and its preparation method
  • Organic protective paint having low adding quantity of nano titanium particle and its preparation method
  • Organic protective paint having low adding quantity of nano titanium particle and its preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] Coating Formulation:

[0038] Modified nano-Ti particles: 0.05% (particle size 20-80nm);

[0039] Dispersant: 0.5%;

[0040] Dibutyl phthalate: 5%;

[0041] Xylene: n-butanol=7: 3 20%;

[0042] Epoxy resin (using E-44): balance.

[0043] Among them: nano-Ti particle composition and modification method:

[0044] Ingredients (percentage by weight):

[0045] Al 2 (SO 4 ) 3 Solution (10%) 5%;

[0046] NaOH solution (10%) 5%;

[0047] Nano Ti particles 70%;

[0048] Deionized water 20%.

[0049] The preparation of the modified nanoparticles is to introduce hydroxyl groups (through Al 2 (SO 4 ) 3 react with NaOH); specific operation: put nano-Ti particles into a round-bottomed flask, slowly pour deionized water into it, stir, and at the same time raise the temperature to 60 °C, put the Al 2 (SO 4 ) 3 The solution and the NaOH solution were added dropwise at the same time, and the dropping rate was controlled at 30 drops / min; after the dropwise addition was co...

Embodiment 2

[0061] Difference with embodiment 1 is coating formula:

[0062] Modified nano-Ti particles: 0.1% (particle size 20-80nm);

[0063] Dispersant: 1%;

[0064] Dibutyl phthalate: 5%;

[0065] Xylene: n-butanol=7: 3 5%;

[0066] Epoxy resin (using 6458): balance.

[0067] Wherein: Nano Ti particle modification composition (by weight percentage):

[0068] Al 2 (SO 4 ) 3 Solution (10%) 20%;

[0069] NaOH solution (10%) 20%;

[0070] Nano Ti particles 50%;

[0071] Deionized water 10%.

[0072] The difference in the preparation of the modified nanoparticles is: put the nano-Ti particles into a round bottom flask, slowly pour deionized water into it, stir, and at the same time raise the temperature to 65°C, and put the Al 2 (SO 4 ) 3 The solution and the NaOH solution were added dropwise at the same time, and the dropping rate was controlled at 25 drops / min; after the dropwise addition was completed, the temperature was kept and continued to stir for 3 hours; after the re...

Embodiment 3

[0079] Embodiment 3 (by weight percentage)

[0080] Difference with embodiment 1 is coating formula:

[0081] Nano-Ti particles: 0.5% (particle size 55-100nm);

[0082] Dispersant: 1%;

[0083] Dibutyl phthalate: 5%;

[0084] Benzene: n-butanol=6:4 20%;

[0085] Epoxy (E-42): balance.

[0086] Wherein dispersant composition (by weight percentage):

[0087] Potassium dodecylbenzenesulfonate 50%;

[0088] Disperbyk-161 45%;

[0089] Benzene 5%.

[0090] Accurately weigh the prepared paint mother liquor, add polyamide curing agent in a ratio of 10:6, and after aging for 1 hour, smear and cure. Conduct coating protection performance test (see Figure 3).

[0091] It can be seen from Figure 3 that the characteristic frequency of the coating with 0.5% nano-Ti particles has been kept in a small range, indicating that the protective performance of the coating is better than that of the coating without nano-Ti particles.

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Abstract

An organic protecting paint with low content of Ti nanoparticles is prepared from Ti nanoparticles (0.05-5 wt.%), disperser (0.5-5), dibutyl phthalate (0-10), solvent (5-25) and filming substance (rest) through sequential mixing, and grinding.

Description

technical field [0001] The invention relates to an organic protective paint, in particular to an organic protective paint with low addition amount of nano Ti particles and a preparation method. 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. For example, the use of nanoparticles with a large surface area can absorb electromagnetic waves, and at the same time, the particle size is smaller than infrared and radar wavelengths, and can pass through visible light and infrared rays to make a coating with stealth function; the us...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D7/12C09D163/02
Inventor 王福会邵亚薇李瑛杜元龙张秀芝
Owner INST OF METAL RESEARCH - CHINESE ACAD OF SCI
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