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Preparation method of high-temperature-resistant and anti-electrolytequinarycopolymerthickening agent

A technology of electrolytes and copolymers, which is applied in the field of preparation of high-temperature-resistant and anti-electrolyte pentapolymer thickeners. The effect of improving the performance of salt and meeting the requirements of use

Inactive Publication Date: 2017-10-10
SILVER ANHUI FOUNDRY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, acrylic acid / acrylamide copolymer has the disadvantages of poor high temperature resistance and poor electrolyte resistance, which limits its application in casting coatings

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] A preparation method of a high-temperature-resistant and anti-electrolyte pentapolymer thickener, comprising the following steps:

[0017] (1) Weigh acrylic acid, acrylamide, 1-vinyl-2-pyrrolidone, (3-acrylamidopropyl) trimethylammonium chloride and 2-acrylamide according to the molar ratio of 3:2:0.5:0.3:0.1 Dodecanesulfonic acid;

[0018] (2) Mix acrylic acid and 2-acrylamido dodecane sulfonic acid, then dissolve the mixture in water with twice the mass, stir well, neutralize with 30% sodium hydroxide solution, add propylene Amide, 1-vinyl-2-pyrrolidone and (3-acrylamidopropyl) trimethylammonium chloride, stir well to dissolve completely, and replenish water to adjust the concentration of the system to 20%, and heat it in a water bath under the protection of nitrogen to Stir at 45°C for 30 minutes at a speed of 400-r / min, then add an initiator, react at a constant temperature for 10 hours, and cool to room temperature to obtain a gel-like product;

[0019] (3) Add w...

Embodiment 2

[0024] A preparation method of a high-temperature-resistant and anti-electrolyte pentapolymer thickener, comprising the following steps:

[0025] (1) Weigh acrylic acid, acrylamide, 1-vinyl-2-pyrrolidone, (3-acrylamidopropyl) trimethylammonium chloride and 2-acrylamide according to the molar ratio of 4:2.5:0.8:0.4:0.15 Dodecanesulfonic acid;

[0026] (2) Mix acrylic acid and 2-acrylamido dodecane sulfonic acid, then dissolve the mixture in 2.5 times the mass of water, stir well, neutralize with 30% sodium hydroxide solution, add propylene Amide, 1-vinyl-2-pyrrolidone and (3-acrylamidopropyl) trimethyl ammonium chloride, fully stirred evenly to dissolve completely, and replenished water to adjust the system concentration to 22%, heated in a water bath under nitrogen protection to Stir at 50°C for 25 minutes at a speed of 450r / min, then add an initiator, react at a constant temperature for 9 hours, and cool to room temperature to obtain a gel-like product;

[0027] (3) Add wat...

Embodiment 3

[0032] A preparation method of a high-temperature-resistant and anti-electrolyte pentapolymer thickener, comprising the following steps:

[0033] (1) Weigh acrylic acid, acrylamide, 1-vinyl-2-pyrrolidone, (3-acrylamidopropyl)trimethylammonium chloride and 2-acrylamide according to the molar ratio of 5:3:1:0.6:0.2 Dodecanesulfonic acid;

[0034] (2) Mix acrylic acid and 2-acrylamido dodecane sulfonic acid, then dissolve the mixture in 3 times the mass of water, stir well, neutralize with 30% sodium hydroxide solution, add propylene Amide, 1-vinyl-2-pyrrolidone and (3-acrylamidopropyl) trimethyl ammonium chloride, stir well to dissolve completely, and replenish water to adjust the concentration of the system to 25%, and heat it in a water bath under nitrogen protection to Stir at 55°C for 20 minutes at a speed of 500r / min, then add an initiator, react at a constant temperature for 8 hours, and cool to room temperature to obtain a gel-like product;

[0035] (3) Add water to the...

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PUM

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Abstract

The invention discloses a preparation method of a high-temperature-resistant and anti-electrolytequinarycopolymerthickening agent. The preparation method comprises steps as follows: acrylic acid and 2-acrylamido dodecyl sulfonic acid are mixed, a mixture is dissolved in water and stirred uniformly sufficiently, a sodium hydroxide solution is added for neutralization, acrylamide, 1-vinyl-2-pyrrolidone and (3-acrylamidopropyl)trimethylammonium chloride are added and stirred uniformly sufficiently to be dissolved completely, water is supplemented to adjust system concentration, water-bath heating is performed under protection of nitrogen, uniform stirring is performed, then an initiating agent is added, and the mixture is subjected to a constant-temperature reaction and is cooled to the room temperature; water is added to an obtained gel-like product, an aqueous solution is prepared, precipitated with absolute ethyl alcohol and subjected to vacuum drying to constant weight, and then the product is repeatedly washed with absolute ethyl alcohol, centrifuged and subjected to supernatant removal and vacuum drying to the constant weight. The prepared quinarycopolymerthickening agent has quite good thickening performance and excellent anti-electrolyteperformance and high-temperature resistance and completely meets the operating requirements of a casting coatingthickening agent.

Description

technical field [0001] The invention relates to a preparation method of a polymer thickener, in particular to a preparation method of a high-temperature-resistant and anti-electrolyte pentapolymer thickener. Background technique [0002] Thickener is a kind of rheological additive. After adding thickener to paint, it can adjust the rheology and thicken the paint. It not only endows the paint with excellent physical and mechanical properties and storage stability, but also controls the rheology of the paint during construction and prevents the The phenomenon of sagging, dripping, flying liquid, etc., can also play a role in reducing costs. Thickeners are very important for the manufacture, storage, and use of adhesive coatings. They can improve and adjust viscosity, and obtain stable, anti-sag , anti-dripping, thixotropy and other properties. [0003] Acrylic acid-acrylamide copolymer is a kind of widely used and very important polymer compound, which can be widely used in t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F220/06C08F220/56C08F226/10C08F220/60C08F220/58B22C3/00
CPCB22C3/00C08F220/06C08F220/56C08F226/10C08F220/60C08F220/585
Inventor 谷和文丁思潮
Owner SILVER ANHUI FOUNDRY