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An integrated heavy-duty anti-corrosion coating for the bottom surface

A heavy-duty anti-corrosion and coating technology, applied in the field of material science, can solve the problems of poor applicability of the surface state of the substrate, and achieve the effects of improving test performance, reducing maintenance costs, and shortening the construction period

Active Publication Date: 2017-12-08
ELECTRIC POWER RESEARCH INSTITUTE OF STATE GRID SHANDONG ELECTRIC POWER COMPANY +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Moreover, the applicability of the epoxy primer to the surface state of the substrate is poor

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] 1. Components and weight percentages: 2% vinyl acetate resin, 35% solvent, 1% dispersant, 2% silicone / silicon dioxide hybrid sol, 32% zinc powder, 3% pigment, 20% thinner, curing dose 5%.

[0026] 2. Preparation method: Weigh the components by weight percentage, first dissolve the chloroacetate resin in the solvent, and after stirring evenly, add zinc powder, pigment, dispersant, and organosilicon / silicon dioxide hybrid sol one by one; construction Add diluent and hardener from time to time. Preparation of organosilicon / silicon dioxide hybrid sol: slowly add a good amount of anhydrous ethanol, hydrochloric acid and distilled water to a quantitative ethyl orthosilicate in sequence at room temperature, and then add a quantitative amount of methyl trisulfate after the reaction for 10 to 120 min. Ethoxysilane and diphenyldimethoxysilane are reacted for 45min~3h, then heated to 70°C, condensed and refluxed for 2.5h~4h to obtain a colorless transparent sol. The whole process...

Embodiment 2

[0029]1. Components and weight percentages: 5% of vinyl acetate resin, 40% of solvent, 0.5% of dispersant, 5% of silicone / silicon dioxide hybrid sol, 35% of zinc powder, 1% of pigment, 12% of diluent, curing agent 1.5%. .

[0030] 2. Preparation method: Weigh the components by weight percentage, first dissolve the chloroacetate resin in the solvent, and after stirring evenly, add zinc powder, pigment, dispersant, and organosilicon / silicon dioxide hybrid sol one by one; construction Add diluent and hardener from time to time.

[0031] 3. Coating: Coating on the surface of the boat, the coating thickness is 40μm.

Embodiment 3

[0033] 1. Components and weight percentages: 2-5% of vinyl acetate resin, 35-40% of solvent, 0.5-1% of dispersant, 2-5% of organosilicon / silicon dioxide hybrid sol, 30-35% of zinc powder, Pigment 1-3%, diluent 11-20%, curing agent 1-5%.

[0034] 2. Preparation method: Weigh the components by weight percentage, first dissolve the chloroacetate resin in the solvent, and after stirring evenly, add zinc powder, pigment, dispersant, and organosilicon / silicon dioxide hybrid sol one by one; construction Add diluent and hardener from time to time.

[0035] 3. Coating: Coating on the surface of offshore oil platform, the coating thickness is 40μm.

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PUM

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Abstract

The invention relates to an integrated heavy-duty anti-corrosion coating for the bottom surface, which is composed of the following raw materials in percentage by weight: 2-5% of vinyl chloride resin, 35-40% of solvent, 0.5-1% of dispersant, organic silicon / silicon dioxide hybrid sol 2-5%, zinc powder 30-35%, pigment 1-3%, diluent 11-20%, curing agent 1-5%. Compared with the traditional bottom and surface two systems, it reduces the number of coatings, shortens the construction period and reduces maintenance costs. Compared with the epoxy zinc-rich / polyurethane system, the performance of the acid salt spray + aging cycle test of the present invention is improved by more than 3 times.

Description

technical field [0001] The invention belongs to the technical field of material science and relates to a bottom surface integrated heavy-duty anti-corrosion coating. Background technique [0002] Heavy-duty anti-corrosion coatings refer to a class of anti-corrosion coatings that can be used in relatively harsh corrosive environments compared to conventional anti-corrosion coatings, and have a longer protection period than conventional anti-corrosion coatings. The main application fields of heavy-duty anti-corrosion coatings are: ① emerging marine engineering: offshore facilities, coastal and bay structures, offshore oil platforms; ② modern transportation: highway guardrails, bridges, boats, containers, trains and railway facilities, automobiles, airports Facilities; ③ Energy industry: hydraulic equipment, water tanks, petroleum refining equipment, petroleum storage equipment (oil pipes, oil tanks), power transmission and transformation equipment, nuclear power, coal mines; ④...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D127/06C09D7/12C09D7/00C09D5/10
Inventor 王学刚李辛庚刘洪正孙学峰王晓明闫风洁岳增武樊志彬郭凯
Owner ELECTRIC POWER RESEARCH INSTITUTE OF STATE GRID SHANDONG ELECTRIC POWER COMPANY