Anti-corrosion and waterproof emulsified asphalt and preparation method thereof

A technology of emulsified asphalt and emulsifier, which is applied in chemical instruments and methods, anti-corrosion coatings, asphalt coatings, etc. It can solve the problems that emulsified asphalt is difficult to achieve anti-corrosion, emulsified asphalt for waterproof coatings, narrow emulsification range, emulsifier migration, etc., to achieve Improve emulsification effect, excellent water resistance and anti-corrosion performance, excellent anti-corrosion effect

Pending Publication Date: 2021-08-27
湖南林特科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] In view of the narrow emulsification range of the emulsification system in the prior art, poor compatibility, easy emulsifier migration, and the emulsified asphalt made is difficult to meet the relevant standards of emulsified asphalt for anti-corrosion and waterproof coatings, the purpose of the present invention is to provide A kind of anticorrosion, waterproof emulsified asphalt and preparation method thereof

Method used

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  • Anti-corrosion and waterproof emulsified asphalt and preparation method thereof
  • Anti-corrosion and waterproof emulsified asphalt and preparation method thereof
  • Anti-corrosion and waterproof emulsified asphalt and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0053] Under the protection of nitrogen atmosphere, add 220kg of lauric acid, 137kg of anthranilic acid, and tetrabutylammonium bromide (0.02wt% of the total reactants) into the reactor, heat up to 120°C and vacuumize for reaction , lower the temperature when the amine value=0mgKOH / g, wash with alkali, filter, and dry to obtain the intermediate;

[0054] Add the above-mentioned intermediate to the reaction kettle, fill with nitrogen and exhaust oxygen, add 115kg of diethylenetriamine and alumina (the amount added is 0.01wt% of the total reactants), and heat up the reaction in stages, 120°C for 1h, 130°C for 1h, 140°C 1h at ℃, 1h at 150°C, 1h at 160°C, 1h at 170°C, 1h at 180°C, 1h at 190°C, 1h at 200°C, 1h at 220°C acid value = 0mg KOH / g. Cool down to 80°C, add 300kg of water, slowly add 50kg of acrylic acid dropwise, react at constant temperature for 2 hours, add sodium hydroxide solution to adjust the pH value to 9.5, and discharge to obtain an emulsifier.

Embodiment 2

[0056] Under the protection of nitrogen atmosphere, 282kg of oleic acid, 137kg of m-aminobenzoic acid, and 2,4,6-tris(dimethylaminomethyl)phenol (the addition amount is 0.02wt% of the total reactant) were added to the reactor , heating up to 120°C and vacuumizing for reaction, cooling down when the amine value = 0mg KOH / g, washing with alkali, filtering and drying to obtain the intermediate;

[0057] Add the above intermediate to the reaction kettle, fill with nitrogen and exhaust oxygen, add 115kg of diethylenetriamine, boric acid (the amount added is 0.01wt% of the total reactants), and heat up the reaction in stages, 120°C for 1h, 130°C for 1h, and 140°C 1h, 150°C 1h, 160°C 1h, 170°C 1h, 180°C 1h, 190°C 1h, 200°C 1h, 220°C 1h. Acid value = 0 mg KOH / g After the reaction is over, vacuumize at 220°C to remove unreacted amines, cool down to 80°C, add 300kg of water, slowly add 50kg of acrylic acid dropwise, react at constant temperature for 2 hours, add sodium hydroxide solutio...

Embodiment 3

[0059] In the case of nitrogen atmosphere protection, 126kg of naphthenic acid, 137kg of p-aminobenzoic acid, and tetrabutylammonium bromide (the addition amount is 0.02wt% of the total reactants) are added to the reactor, and the temperature is raised to 120°C and vacuumized. Reaction, cooling down when the amine value = 0mgKOH / g, washing with alkali, filtering and drying to obtain the intermediate;

[0060] Add the above intermediate to the reaction kettle, fill with nitrogen and exhaust oxygen, add 115kg of diethylenetriamine and triphenylphosphine (the amount added is 0.01wt% of the total reactants), and heat up the reaction in stages, 120°C for 1h, 130°C for 1h , 140°C for 1h, 150°C for 1h, 160°C for 1h, 170°C for 1h, 180°C for 1h, 190°C for 1h, 200°C for 1h, 220°C for 1h Acid value = 0mg KOH / g. For amine, cool down to 80°C, add 300kg of water, slowly add 50kg of acrylic acid dropwise, react at constant temperature for 2 hours, add sodium hydroxide solution to adjust the ...

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PUM

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Abstract

The invention discloses anti-corrosion and waterproof emulsified asphalt which is prepared from the following raw materials in parts by weight: 550 parts of matrix asphalt, 1-30 parts of an emulsifier, 2-50 parts of a modifier, 5-100 parts of a single-component waterborne epoxy emulsion, 0.1-5 parts of a stabilizer and a proper amount of distilled water. The invention provides high-performance emulsified asphalt. A high-performance water-based single-component epoxy emulsion and an imidazole asphalt emulsifier are adopted as raw materials and are matched with auxiliaries (such as a defoaming agent, a thickening agent, a dispersing agent, a stabilizer and the like) to obtain a water-based epoxy asphalt mortar product with efficient corrosion resistance and excellent waterproof and anti-seepage performance. The emulsified asphalt can be widely applied to water prevention and corrosion prevention of sewage pools and pipelines, can replace toxic and harmful products such as epoxy coal pitch and the like, is also widely applied to building waterproof engineering such as water prevention of toilets, roofs and basements, and is matched with hot-melt or self-adhesive asphalt coiled materials to be applied to coating and coiling composite waterproof engineering.

Description

technical field [0001] The invention belongs to the technical field of emulsified asphalt, and in particular relates to an anti-corrosion and waterproof emulsified asphalt and a preparation method thereof. Background technique [0002] In the field of building waterproofing today, there are many types of waterproofing materials, mainly asphalt, rubber and waterproof concrete. Bituminous waterproofing membranes are widely used in underground, hydraulic, industrial and other constructions. Waterproof concrete is mainly used in underground hydraulic construction and roofing engineering, etc., but when using this type of coating, some need to be heated, have odor, the waterproof effect is not ideal, and the coating is too thick to increase the load-bearing. [0003] Building anti-corrosion is mainly to prevent the corrosion of buildings caused by corrosive substances such as acid, alkali and salt in industrial production, as well as the corrosive media contained in the atmosphe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08J3/03C08L95/00C08L63/00C08L53/02C09D195/00C09D163/00C09D153/02C09D5/08C09D7/65C07D233/64B01F17/32B01F17/28B01F17/22C09K23/22C09K23/28C09K23/32
CPCC08J3/03C09D195/005C09D5/08C09D7/65C07D233/64C08J2395/00C08J2453/02C08J2463/00C09K23/00C08L63/00C08L53/02
Inventor 蒋哲明易添福刘小林
Owner 湖南林特科技有限公司
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