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Nano-modified coating material and preparation method thereof

A coating material and nano-modification technology, applied in the field of nano-technology in coating materials, can solve problems such as influence and uncontrollable reaction, and achieve the effect of improving mechanical properties, improving salt spray resistance, and obvious toughening effect.

Inactive Publication Date: 2018-09-25
SHENYANG RES INST OF CHEM IND +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, emulsifiers that reduce the particle size significantly affect the polyisocyanate / polyisourate (trimerization) transition and the water / polyisocyanate (polyurea formation) reaction, making the reaction uncontrollable

Method used

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  • Nano-modified coating material and preparation method thereof
  • Nano-modified coating material and preparation method thereof
  • Nano-modified coating material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] A polyurethane / polyurea material modified by inorganic nanoparticles, prepared according to the following ratio:

[0046]

[0047]

[0048]

[0049] Note: Defoamer is Tego 900

[0050] Leveling agent is Tego410

[0051] Wetting agent BYK 2151

[0052] The preparation method of the polyurethane / polyurea coating material modified by inorganic nanoparticles is as follows:

[0053] ① Add 50 parts of modified polymerized MDI to the dispersion kettle, and sequentially add 6 parts of tributyl phosphate, 15 parts of methacryloxyethyl phosphate, 15 parts of monofunctional acrylic phosphate polymer, and stir for 10 minutes;

[0054] ②Add 3 parts of carbon black and 10 parts of bentonite to the above slurry, and use 1000-2000r to disperse for 1-2 hours until the slurry is stable;

[0055] ③Add 0.3 part of wetting agent, 0.4 part of leveling agent, and 0.3 part of defoamer to the above stable slurry, stir for 10 minutes, and filter to obtain component A.

[0056] ④ Add 40 parts of potassium sil...

Embodiment 2-14

[0059] The phosphate ester mixture in the formulation of Example 1 was replaced as shown in Table 1, and the other compositions and ratios remained unchanged.

[0060] Table 1 Types of Functional Phosphate Mixtures in Examples

[0061]

[0062]

[0063] Note: Monomer ① is benzyl mercaptopropionate;

[0064] Monomer ② is ethylene glycol methacrylate phosphate;

[0065] Monomer ③ is methacryloyloxyethyl phosphate;

[0066] Polymer ① is silane modified polyester 928, Hengshui Songshan Chemical Co., Ltd.;

[0067] Polymer ②Polyester / silicon hybrid resin EVOK-343PP;

[0068] Polymer ③ is a bifunctional acrylic phosphate polymer SWR-150, Wafer Chemical Co., Ltd.;

[0069] Polymer ④ is a multifunctional acrylic phosphate polymer, SWR-151, Wafer Chemical Co., Ltd.;

[0070] Polymer ⑤ is a bifunctional epoxy modified polyester, SRE-6005-30, Shi Rui Co., Ltd.;

[0071] Polymer ⑥ is a multifunctional epoxy modified polyester, SRE-6005A Shi Rui Co., Ltd.;

Embodiment 10

[0073] A polyurethane / polyurea material modified by inorganic nanoparticles, prepared according to the following ratio:

[0074]

[0075] Note: Defoamer is Tego 900

[0076] The leveling agent is Tego410 plasticizer is mixed and matched

[0077] Wetting agent BYK 2151

[0078] The preparation method of the polyurethane / polyurea coating material modified by inorganic nanoparticles is as follows:

[0079] ① Add 50 parts of modified polymerized MDI to the dispersion kettle, and sequentially add 6 parts of tributyl phosphate, 8 parts of methacryloxyethyl phosphate, 22 parts of monofunctional acrylic phosphate polymer, and stir for 10 minutes;

[0080] ②Add 3 parts of carbon black and 10 parts of bentonite to the above slurry, and disperse at 1000-2000r for 1-2 hours until the slurry is stable;

[0081] ③Add 0.3 part of wetting agent, 0.4 part of leveling agent, and 0.3 part of defoaming agent to the above stable slurry, stir for 10 minutes, and filter to obtain component A.

[0082] ④ Add 40 p...

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Abstract

The invention relates to application of nanotechnology in the field of coating materials, in particular to a nano-modified coating material and a preparation method thereof. The coating material is acombination of components A and B in a mass ratio of (1:1) to (3:1); wherein the component A is prepared from the following materials in 100 parts by weight: 20 to 80 parts of modified isocyanate, 0.01 to 20 parts of catalyst, 5 to 70 parts of plasticizer, 0.01 to 10 parts of auxiliary agent and 0 to 30 parts of pigment / filler; the component B is prepared from the following materials in 100 partsby weight: 30 to 70 parts of silicate, 30 to 70 parts of deionized water and 0 to 2 parts of surfactant. The comprehensive performance of the coating material is greatly improved, the corrosion resistance of a coating is particularly improved, and the mechanical strength, hardness, weather resistance and the like of the material are improved.

Description

Technical field [0001] The invention relates to the application of nanotechnology in the field of coating materials, in particular to a nano-modified coating material and a preparation method thereof. Background technique [0002] Nanotechnology is an emerging technology that has emerged in recent years. It has brought a major revolution in the field of materials science. Since the properties of surface materials involved in corrosion protection are determined by the microstructure, the emergence and application of nanotechnology will undoubtedly give corrosion control. The development of technology brings huge opportunities. [0003] Studies have shown that the use of nanotechnology to modify organic coating anticorrosive materials can improve their overall performance, especially the mechanical strength, hardness, and adhesion of the material, as well as light resistance, aging resistance, and weather resistance. Such as TiO, SiO 2 Nano-particles such as ZnO, FeO, etc. have a sc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D175/04C09D175/02C09D7/61C09D7/63C09D7/65C09D5/08C09D4/06
CPCC08K2201/011C09D4/06C09D5/08C09D7/61C09D7/63C09D7/65C09D175/02C09D175/04C08L67/00C08K3/34C08K5/521
Inventor 张宇孔凡厚吴井龙胥维昌张学龙王新滕赟
Owner SHENYANG RES INST OF CHEM IND
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