A preparation method for protective coating material for buildings around the ocean

A protective coating and marine technology, which is used in the field of preparation of protective coating materials for buildings around the ocean to achieve the effects of extending service life, reducing corrosion and good wettability

Active Publication Date: 2022-04-29
HUBEI UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] However, when polymer mortar is used for the coating of marine environment building surfaces, it is necessary to focus on the construction, weather resistance and environmental suitability of polymer mortar, and these problems are not well resolved in these patents

Method used

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  • A preparation method for protective coating material for buildings around the ocean
  • A preparation method for protective coating material for buildings around the ocean
  • A preparation method for protective coating material for buildings around the ocean

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preparation example Construction

[0044] A preparation method for building protective coating materials around the ocean, comprising the following steps:

[0045] (1) prepare chitosan, sodium alginate solution;

[0046] (2) add surfactant and organic solvent respectively in chitosan, sodium alginate solution, form chitosan microemulsion and sodium alginate microemulsion respectively after mixing;

[0047] (3) sodium alginate microemulsion is added dropwise in chitosan microemulsion, after reaction is sufficient, centrifugation, washing, freeze-drying obtain chitosan-sodium alginate nano microsphere; Preferably, sodium alginate microemulsion The mass ratio of emulsion to chitosan microemulsion is 50-100:100;

[0048] (4) Add chitosan-sodium alginate nano-microspheres to the ethanol solution of monocyclohexyl maleate, then add aldehyde solution, after the reaction is complete, centrifuge, wash and dry to obtain chitosan-sodium alginate particles ;

[0049] (5) Chitosan-sodium alginate particles are added to t...

Embodiment 1

[0065] (1) Take by weighing 0.5 part of chitosan and be dissolved in 100 parts of water, and add 1.75 parts of glacial acetic acid, remove insoluble matter by centrifugation after dissolving, obtain chitosan solution;

[0066] Weigh 0.5 parts of sodium alginate and dissolve it in 100 parts of water, remove insoluble matter by centrifugation after dissolution, and adjust the pH to 5-6 with acetic acid to obtain a sodium alginate solution.

[0067] (2) Mix 100 parts of chitosan solution, 2 parts of phospholipids, and 30 parts of n-hexane, and stir at room temperature to form chitosan microemulsion. Similarly, sodium alginate microemulsion was prepared.

[0068] (3) 50 parts of sodium alginate microemulsion was gradually added dropwise to 100 parts of chitosan microemulsion, reacted for 4 hours, centrifuged, washed with deionized water, and freeze-dried to obtain chitosan-sodium alginate nanospheres.

[0069] (4) 50 parts of chitosan-sodium alginate nano-microspheres are added i...

Embodiment 2

[0075] (1) Take by weighing 0.6 part of chitosan and be dissolved in 100 parts of water, and add 1.75 parts by weight of glacial acetic acid, remove insolubles by centrifugation after dissolving, obtain chitosan solution;

[0076] Weigh 0.6 parts of sodium alginate and dissolve it in 100 parts of water, remove insoluble matter by centrifugation after dissolution, and adjust the pH to 5-6 with acetic acid to obtain a sodium alginate solution.

[0077] (2) Mix 100 parts of chitosan solution, 3 parts of choline, and 35 parts of cyclohexane, and stir at room temperature to form a chitosan microemulsion. Similarly, sodium alginate microemulsion was prepared.

[0078] (3) 60 parts of sodium alginate microemulsion was gradually added dropwise to 100 parts of chitosan microemulsion, reacted for 4 hours, centrifuged, washed with deionized water, and freeze-dried to obtain chitosan-sodium alginate nanospheres.

[0079] (4) 60 parts of chitosan-sodium alginate nanomicrospheres are added...

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Abstract

The invention discloses a method for preparing a protective coating material for buildings around the ocean, comprising the following steps: (1) preparing chitosan and sodium alginate solution; (2) preparing chitosan microemulsion and sodium alginate Microemulsion; (3) mixing sodium alginate microemulsion and chitosan microemulsion to prepare chitosan-sodium alginate nano-microspheres; (4) preparing cross-linked chitosan-sodium alginate particles; (5) Preparation of imprinted polymer microspheres rich in silver ions; (6) preparation of hydrophobically modified acrylic copolymer emulsion; (7) preparation of nano-functionalized hydrophobic acrylic polymer emulsion; (8) preparation of nano-functionalized hydrophobic acrylic polymer emulsion, cement , and fine sand, which can be used as protective coating materials for buildings around the ocean. The protective coating material for buildings around the ocean prepared by the present application can effectively reduce the deterioration and corrosion of marine buildings caused by seawater, and prolong their life in a humid and high-salt environment.

Description

technical field [0001] The invention belongs to the field of protective materials for marine buildings, and in particular relates to a preparation method for protective coating materials for buildings around the ocean. Background technique [0002] Concrete buildings in the surrounding environment of the ocean, due to the complex corrosion environment of the ocean, the strength of the reinforced concrete structure will be reduced due to the corrosion of concrete and steel bars, and the destruction of the concrete structure will accelerate the corrosion of the steel bars, resulting in reduced durability of the structure, reliable degree drops. The economic loss caused by marine corrosion is very serious, and the country spends huge sums of money on building maintenance or reconstruction every year. Therefore, the protection of concrete works in the marine environment has attracted more and more attention. [0003] The humid and high-salt environment around the ocean will ca...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B28/00C04B24/26C08F8/42C08F220/06C08F220/14C08F220/18C04B111/24
CPCC04B28/00C04B24/2641C08F8/42C04B2111/00482C04B2111/24C08F220/06C08F220/14C08F220/1802C08F220/1804C04B14/06C04B14/068
Inventor 陈顺刘巧谭梦曦苏英黄震宇张路川贺行洋陈威杨进曾三海熊潇
Owner HUBEI UNIV OF TECH
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