High polymer and preparation and application thereof

A technology of high polymer and aqueous solution polymerization method, which is applied to high polymer and its preparation and its application in corrosion inhibition, can solve the problems of corrosion of metal materials, difficulties in marine development, and large direct economic losses, and achieve corrosion inhibition. Corrosion effect, excellent thermal stability and ion adsorption performance, effect of good thermal stability

Inactive Publication Date: 2021-02-02
BEIJING GAS GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The 21st century is known as "a new era of marine development", but the harsh marine environment has caused great difficulties for the development of the ocean
The corrosion of metal materials is a common problem faced by the whole world, especially the corrosion in the ocean is quite serious, and the direct economic loss is huge

Method used

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  • High polymer and preparation and application thereof
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  • High polymer and preparation and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] The preparation of polymer CTS-IA-AA specifically includes the following steps:

[0043] (1) According to the monomer mass ratio CTS:IA:AA=10:7:3, first put CTS into the four-necked flask according to the above dosage, then add IA and AA monomers, quickly add distilled water, and stir with a mixer Evenly, the raw materials are fully dissolved and ready for use;

[0044] (2) Place the four-necked flask in a constant water bath at 40°C and continue to stir, because O 2 It has a polymerization inhibitory effect on the polymerization reaction, so N is introduced into the four-necked flask. 2 Protection reaction, adding EDTA and redox system to the system, the reaction time is 5h; wherein, the final concentration of APS-SBS in the system is 15wt%, the mass ratio of APS and SBS is 1:1; the mass ratio of EDTA and CTS in the system is 2:1.

[0045] (3) The product of the polymerization reaction is taken out from the four-necked flask, and absolute ethanol is added to precipi...

Embodiment 2

[0049] The preparation of polymer CTS-IA-AA specifically includes the following steps:

[0050] (1) According to the monomer mass ratio CTS:IA:AA=11:6:3, first put CTS into the four-necked flask according to the above dosage, then add IA and AA monomers, quickly add distilled water, and stir with a mixer Evenly, the raw materials are fully dissolved and ready for use;

[0051] (2) Place the four-necked flask in a constant water bath at 30°C and continue to stir, because O 2 It has a polymerization inhibitory effect on the polymerization reaction, so N is introduced into the four-necked flask. 2 Protection reaction, adding EDTA and redox system to the system, the reaction time is 4h; wherein, the final concentration of APS-SBS in the system is 12wt%, the mass ratio of APS and SBS is 2:1; the mass ratio of EDTA and CTS in the system is 2:1.

[0052] (3) The product of the polymerization reaction is taken out from the four-necked flask, and absolute ethanol is added to precipi...

Embodiment 3

[0055] The preparation of polymer CTS-IA-AA specifically includes the following steps:

[0056] (1) According to the monomer mass ratio CTS:IA:AA=6:10:4, first put CTS into the four-necked flask according to the above dosage, then add IA and AA monomers, quickly add distilled water, and stir with a mixer Evenly, the raw materials are fully dissolved and ready for use;

[0057] (2) Place the four-necked flask in a constant water bath at 50°C and continue to stir, because O 2 It has a polymerization inhibitory effect on the polymerization reaction, so N is introduced into the four-necked flask. 2 Protection reaction, adding EDTA and redox system to the system, the reaction time is 6h; wherein, the final concentration of APS-SBS in the system is 18wt%, the mass ratio of APS and SBS is 1:1; the mass ratio of EDTA and CTS in the system is 2:1.

[0058] (3) The product of the polymerization reaction is taken out from the four-necked flask, and absolute ethanol is added to precipi...

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Abstract

The invention relates to the field of corrosion prevention technology application, in particular to a high polymer (CTS-IA-AA) as well as preparation and application thereof in corrosion inhibition. According to the preparation method, an aqueous solution polymerization method is adopted, graft polymerization is conducted on IA and AA monomers on CTS in an aqueous solution under the action of an initiator to obtain a high polymer (CTS-IA-AA), wherein the initiator is a redox system (APS-SBS) and EDTA. The corrosion inhibitor CTS-IA-AA disclosed by the invention is low in preparation cost, green and pollution-free, can be quickly adsorbed on the surface of 304 stainless steel so as to weaken corrosion and oxygen absorption reaction on the surface of a material, has an obvious corrosion inhibition effect on the corrosion of the 304 stainless steel in a 3.5% NaCl solution, and provides a direction for protecting a metal material when a high polymer is applied to the corrosion inhibitor.

Description

technical field [0001] The invention relates to the application field of anticorrosion technology, in particular to a high polymer (CTS-IA-AA), its preparation and its application in corrosion inhibition. Background technique [0002] The 21st century is known as "a new era of marine development", but the harsh marine environment has caused great difficulties for the development of the ocean. The corrosion of metal materials is a common problem faced by the whole world, especially the corrosion in the ocean is quite serious, and the direct economic loss is huge. Therefore, on the basis of making full use of the existing anti-corrosion technology, we must actively strive to develop economical, efficient and environmentally friendly anti-corrosion technology, and carry out strict scientific management to reduce economic losses. [0003] Corrosion protection technology mainly includes electrochemical protection technology to prevent corrosion, surface treatment technology, opt...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F251/00C08F220/06C08F222/02C08F4/40C08F4/30C23F11/173
CPCC08F251/00C08F4/40C08F4/30C23F11/173C08F220/06C08F222/02
Inventor 薛建宁宋长伟罗祥平卢琳刘中河孔令广李立东张奕曾常亮邓绍敏罗强
Owner BEIJING GAS GRP
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