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Elastic anticorrosive adhesive and preparation method thereof

A binder and elastic technology, applied in the field of elastic anti-corrosion binder and its preparation, can solve the problems of poor microbial corrosion protection effect, poor rust prevention and rust conversion effect, short protection life, etc., achieve significant economic benefits, prevent microbial corrosion, Effect of improving chemical resistance

Inactive Publication Date: 2020-08-25
青岛海弗莱安全科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The invention provides an elastic anti-corrosion adhesive and a preparation method thereof, aiming at solving the defects of acrylic polyurethane anti-corrosion coatings such as short protection life, poor anti-rust effect, poor effect on microbial corrosion protection, etc., and can effectively solve the problem of boiler unit color The typical corrosion problems faced by steel plate parts such as pitting corrosion, crevice corrosion, galvanic corrosion, and microbial corrosion have good waterproof and tightness, no deterioration after long-term use, and strong anti-rust and rust-reversing functions. At the same time, it can effectively kill Kill iron bacteria, thiobacillus, sulfate reducing bacteria and other microorganisms to prevent microbial corrosion, and can be widely used in acidic or alkaline environments, with significant economic benefits

Method used

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Experimental program
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Effect test

Embodiment 1

[0037] An elastic anticorrosion adhesive provided in Embodiment 1 of the present invention includes component A and component B with a mass fraction ratio of 4:1, wherein component A includes raw materials in the following mass percentage: amino-terminated polyether 30-48 %, fumed silica 3-7%, pigment 30-45%, catalyst 0.5-2.5%, accelerator 0.5-4.5%, metal corrosion inhibitor additive 7-13%, deionized water 1-8%, B component Raw materials including the following mass percentages: matrix polymer 45-60%, liquid epoxy resin 1-5%, stabilizer 1.5-3.5%, adhesion promoter 1-4%, fumed silica 7.1-14%, nano Reinforcing powder 13.5-35%, antioxidant 1.2-3.5%, ultraviolet absorber 1.2-3.5%.

[0038] The matrix polymer used in the B component of the embodiment of the present invention includes silane-modified polyether resin and polyurea-modified silane-based polyether resin, wherein the silane-modified polyether resin is methyldimethoxysilane-terminated At least one of polyether resin or t...

Embodiment 2

[0072] Based on the same inventive concept, Embodiment 2 of the present invention provides a method for preparing the above-mentioned elastic anticorrosion adhesive, the method comprising:

[0073] (1) Add the amino-terminated polyether into the planetary stirring tank, adjust the speed of the planetary stirring motor and the high-speed stirring motor to 10-20rpm and 500-800rpm respectively, and add fumed silica, pigments, catalysts, accelerators and metals in sequence Corrosion inhibitor, after adding the planetary stirring motor and high-speed stirring motor, adjust the speed to 30-40rpm and 1000-1200rpm respectively, turn on the heating device and raise the temperature to 60°C, keep the temperature at 60±5°C and stir for 1-1.5h;

[0074] (2) Stop heating, adjust the speed of the planetary stirring motor and the high-speed stirring motor to 10-20rpm and 500-800rpm respectively, add deionized water, continue stirring for 1-1.5h, then open the vacuum valve, and defoam at a vacu...

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Abstract

The invention discloses an elastic anticorrosive adhesive and a preparation method thereof, and belongs to the technical field of anticorrosive materials,, which is prepared from a component A and a component B. Amino polyether is adopted in the formula of the component A, self-synthesized polyurea modified silane-based polyether resin is adopted in the component B, and the polyurea modified silane-based polyether resin contains an extremely small amount of residual isocyanate groups for reaction, thereby greatly lowering the storage amount of free amino polyether in an elastic anticorrosive adhesive. Meanwhile, the amino polyether reacts with the epoxy resin in the component B and part of epoxy groups in the gamma-glycidyl ether oxypropyl trimethoxy silane, so the mechanical property of elastic anticorrosive adhesive is improved; the introduction of the epoxy group is beneficial to enhancing the chemical resistance of the elastic anticorrosive adhesive, and the elastic anticorrosive adhesive can adapt to the erosion of acid rain and the like in the industrial atmospheric environment. Most of the free-state amine-terminated polyether is reacted through the reaction, so that migration and precipitation caused by excessive free-state amine-terminated polyether are avoided, and the invention can be widely applied to acidic or alkaline environments and has remarkable economic benefits.

Description

technical field [0001] The invention relates to the technical field of anticorrosion materials, in particular to an elastic anticorrosion adhesive and a preparation method thereof. Background technique [0002] Boiler steel frame is a common facility and component in petrochemical, electric power and gas industries, and plays a vital role in the daily production process. The top of the boiler steel frame is a structure in which the overhead color steel plate and the I-shaped steel purlin are penetrated and fixed by drilling self-tapping screws. Due to the severe marine atmospheric corrosion environment and harsh industrial atmospheric corrosion environment, rainwater, corrosive gas, stagnant water, acid mud and microorganisms will all corrode it, and the dust deposited in the gaps will accelerate the electrochemical process. Corrosion, which poses a threat to the safety of the build. Now it is common that there are corrosion and perforations in the fixed part of the color ...

Claims

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Application Information

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IPC IPC(8): C09J171/00C09J175/02C09J163/00C09J11/04C09J11/06C09J11/08
CPCC09J171/00C09J175/02C09J11/04C09J11/06C09J11/08C08L2205/025C08L2205/035C08K2003/3045C08K2003/329C08K2003/324C08K2003/265C08K2201/011
Inventor 杨小刚王向阳李斌
Owner 青岛海弗莱安全科技有限公司