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Anti-scouring and abrasion-resistant protective nanometer coating for hydraulic engineering buildings and method for preparing anti-scouring and abrasion-resistant protective nanometer coating

A nano-coating and water conservancy engineering technology, applied in the field of coatings, can solve problems such as limited friction resistance and inability to meet impact and abrasion

Inactive Publication Date: 2017-05-31
毛葵燕
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The Chinese patent application number 200610025286.4 "Preparation method of a wear-resistant and corrosion-resistant nano-composite epoxy asphalt repair coating" adds one or two nano-scale functional powder materials to the epoxy asphalt anti-corrosion coating, and the prepared coating is compatible with Compared with the original epoxy asphalt anti-corrosion coating, the friction resistance is significantly improved, but only relying on the wear resistance of nanoparticles, the improvement of the friction resistance of the coating is limited, and it cannot meet the needs of buildings subjected to high-speed sand-laden water erosion and displacement quality in water conservancy projects. impact grinding
The Chinese patent application number 200610025288.3 "Preparation method of wear-resistant and corrosion-resistant nano-composite epoxy zinc-rich coating" adds one or two nano-scale functional powder materials to the epoxy zinc-rich coating, and the prepared coating has the same Compared with the original epoxy zinc-rich coating, the friction resistance is significantly improved. Also only relying on the wear resistance of nanoparticles, the improvement of the friction resistance of the coating is limited.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] Embodiment 1, the anti-impact wear-resisting protective nano-coating of water conservancy project building, the weight ratio of first component and second component adopts as 100: 20; Wherein, the composition and weight ratio of first component are as follows; E44 epoxy resin 40 ; Furfural 15; Acetone 15; A-phase nano-alumina 0.8; Tetragonal nano-zirconia 0.8; Coupling agent 0.4; Silicon carbide 25; Pigment 3: Among them, carbon black 0.5; Titanium dioxide 2.5. The coupling agent is KH550 silane coupling agent. The preparation method is as follows: the preparation process of component A: the formulation amount of acetone, coupling agent, and nano-scale functional powder materials are dispersed in a high-speed disperser; the formulation amount of E44 epoxy resin is added to continue to disperse; the formulation amount of component A Add all the remaining materials according to the formula amount, and continue to disperse; move all the materials out of the disperser, tran...

Embodiment 2

[0044] Embodiment 2 is basically the same as Embodiment 1, but has the following changes:

[0045] The weight ratio of A component and B component is 100:15; Wherein, the composition of A component and weight ratio are as follows; Epoxy resin 35; Active solvent 20; Described active solvent is made up of furfural and acetone, and wherein, furfural The weight ratio of acetone is 10; the weight ratio of acetone is 10; the nano-scale functional powder material is 1.2; it is composed of tetragonal nano-zirconia and a-phase nano-alumina, and the weight ratio of a-phase nano-alumina is 0.6 ; The weight ratio of tetragonal nano zirconia is 0.6. Coupling agent 0.3; Silicon carbide 20; Pigment 2. In the present embodiment, pigment adopts: carbon black 0.5; Titanium dioxide 1.5.

Embodiment 3

[0046] Embodiment 3 is basically the same as Embodiment 1, but has the following changes:

[0047]The weight ratio of A component and B component is 100:25; Wherein, the composition of A component and weight ratio are as follows; Epoxy resin 45; Active solvent 40; Described active solvent is made up of furfural and acetone, and wherein, furfural The weight ratio of acetone is 24; the weight ratio of acetone is 16; the nano-scale functional powder material is 2.0; it is composed of tetragonal nano-zirconia and a-phase nano-alumina, and the weight ratio of a-phase nano-alumina is 1.0 ; The weight ratio of tetragonal nano zirconia is 1.0. Coupling agent 0.5; Silicon carbide 30; Pigment 4. In the present embodiment, the pigment adopts: carbon black 0.5; titanium dioxide 3.5.

[0048] The coupling agent is KH570 silane coupling agent.

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Abstract

The invention discloses anti-scouring and abrasion-resistant protective nanometer coating for hydraulic engineering buildings and a method for preparing the anti-scouring and abrasion-resistant protective nanometer coating. The anti-scouring and abrasion-resistant protective nanometer coating comprises a component A and a component B. A weight ratio of the component A to the component B is 100:15-25; the component A comprises, by weight, 35-45 parts of epoxy resin, 20-40 parts of active solvents, 1.2-2.0 parts of nanometer-scale functional powder materials, 0.3-0.5 part of coupling agents, 20-30 parts of silicon carbide and 2-4 parts of pigment; the component B comprises T31 epoxy resin curing agents. The method includes preparation processes of dispersing and sanding various substances of the component A; mixing the component A and the component B with each other according to the weight ratio to obtain mixtures during use; uniformly stirring the mixtures. The anti-scouring and abrasion-resistant protective nanometer coating and the method have the advantages that the problem of characteristics that buildings can be destructed by high-speed sand inclusion water flow scouring and bed load impact abrasion in hydraulic engineering can be solved, the anti-scouring and abrasion-resistant protective nanometer coating is high in anti-scouring and abrasion-resistant performance as compared with the traditional nanometer coating, and the hardness and the flexibility of the anti-scouring and abrasion-resistant protective nanometer coating can be obviously improved.

Description

technical field [0001] The invention relates to a coating, in particular to a nano coating for anti-shock and wear protection of water conservancy engineering buildings, and also relates to a preparation method of the coating. Background technique [0002] Buildings in water conservancy projects are severely damaged by the erosion of high-speed sand-laden water and the impact of moving masses. This has always been a problem to be solved in the construction of water conservancy and hydropower. 70% of the dam discharge structures in operation in my country have different degrees of existence grinding damage. With the implementation of the Western Development and West-East Power Transmission Strategy, a number of large-scale high-head hydropower stations represented by Xiluodu and Jinping I have started construction one after another. The maximum flow rate of the discharge can reach 50m / s. The existing epoxy Mortar, sprayed polyurea, lining steel plate, and silica fume high-str...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D163/00C09D7/12
CPCC09D163/00C08K3/04C08K3/22C08K3/34C08K13/02C08K2003/2227C08K2003/2241C08K2003/2244C08K2201/011C09D7/61C09D7/63C09D7/67C09D7/68
Inventor 毛葵燕
Owner 毛葵燕