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A kind of cationic inverse emulsion thickener and preparation method thereof

An inverse emulsion and cationic technology, applied in the field of polymer materials, can solve the problems of unsatisfactory thickening ability and achieve excellent thickening ability

Active Publication Date: 2021-09-07
GUANGZHOU TINCI MATERIALS TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] Some of the cationic inverse emulsion thickener products disclosed in the above-mentioned patent technology have excellent thickening effect at high active substance concentration, and some have anti-sedimentation effect, but the thickening ability is not good at low active substance dosage. ideal

Method used

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  • A kind of cationic inverse emulsion thickener and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] Add 277g of deionized water into the beaker, add 101g of acryloyloxyethyltrimethylammonium chloride and 124g of acrylamide under stirring, add 0.23g of N,N'-methylene bisacrylamide and 0.23 tert-butyl hydroperoxide, after continuing to stir and dissolve, adjust the pH value of the solution to 4-6 to form an aqueous phase solution.

[0047] Add 489g Marcol to another beaker TM 52. 411g Isopar TM C and 30g SPAN 80, stirred and dissolved evenly to obtain an oil phase solution.

[0048] In the state of stirring, slowly add the oil phase solution into the water phase solution, continue to stir for 2 minutes after the addition, and then use a homogenizer to homogenize for 2-5 minutes.

[0049] Transfer the homogenized emulsion to a four-necked flask equipped with a stirring paddle, a thermometer and a condenser, start stirring, and pass nitrogen gas for more than 30 minutes to remove oxygen in the system.

[0050] Dissolve 0.45 g of reducing agent sodium bisulfite in dei...

Embodiment 2

[0054] Add 337g of deionized water to the beaker, add 180g of acrylamidopropyltrimethylammonium chloride and 120g of hydroxyethyl acrylate under stirring, add 0.15g of diallylamine and 0.15g of potassium bromate after stirring and dissolving, and continue stirring After dissolving, adjust the pH value of the solution to 4-6 to form an aqueous phase solution.

[0055] Add 750g Isopar to another beaker TM M and 22.5g SPAN 60, stirred and dissolved evenly to obtain an oil phase solution.

[0056] In the state of stirring, slowly add the oil phase solution into the water phase solution, continue to stir for 2 minutes after the addition, and then use a homogenizer to homogenize for 2-5 minutes.

[0057] Transfer the homogenized emulsion to a four-necked flask equipped with a stirring paddle, a thermometer and a condenser, start stirring, and pass nitrogen gas for more than 30 minutes to remove oxygen in the system.

[0058] Dissolve 0.3 g of reducing agent sodium metabisulfite i...

Embodiment 3

[0062] Add 389g of deionized water to the beaker, add 281g of methacryloxyethyltrimethylammonium chloride and 94g of vinylpyrrolidone under stirring, add 0.038g of triallylamine and 0.075g of persulfuric acid after stirring and dissolving Ammonium, after continuing to stir and dissolve, adjust the pH value of the solution to 4-6 to form an aqueous phase solution.

[0063] Add 480g polyisobutylene, 120g Isopar to another beaker TM E and 52.5g Hypermer TM 2296, the oil phase solution was obtained after stirring and dissolving evenly.

[0064] In the state of stirring, slowly add the oil phase solution into the water phase solution, continue to stir for 2 minutes after the addition, and then use a homogenizer to homogenize for 2-5 minutes.

[0065] Transfer the homogenized emulsion to a four-necked flask equipped with a stirring paddle, a thermometer and a condenser, start stirring, and pass nitrogen gas for more than 30 minutes to remove oxygen in the system.

[0066] Disso...

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Abstract

The invention belongs to the field of polymer materials, and discloses a preparation method of a cationic inverse emulsion thickener. The cationic inverse emulsion thickener is prepared by an inverse emulsion polymerization method from a monomer mixture accounting for 15 to 30 wt% of the total weight of the emulsion. ; The monomer mixture includes cationic monomers, nonionic monomers and cross-linking agents. The cationic thickener prepared by this method has excellent thickening ability under the condition of low active substance dosage. Compared with commercial products, it has higher viscosity at low active content (<1wt%), or can use less thickener to achieve a specific viscosity.

Description

technical field [0001] The invention relates to the field of polymer materials, in particular to a cationic inverse emulsion thickener and a preparation method thereof. Background technique [0002] In the field of polymer thickeners, the most common ones are naturally derived thickeners and chemically synthesized thickeners. Although thickeners from natural sources have the advantages of being degradable, they have problems such as unstable performance, insufficient product sources, and unstable product supply. Therefore, chemically synthesized thickeners are the most used in various industries. According to the different charges of the monomers used, chemically synthesized thickeners can be divided into anionic thickeners, nonionic thickeners and cationic thickeners. Different ionic thickeners have different application ranges. Anionic thickeners can be used in anionic and nonionic systems, but not in cationic systems. Although nonionic thickeners can be used in anionic...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08F220/56C08F220/34C08F222/38C08F220/20C08F226/02C08F226/10C08F290/06
CPCC08F220/34C08F220/56C08F290/062C08F222/385C08F220/20C08F226/02C08F226/10
Inventor 佟锐赵经纬刘柏成信勇
Owner GUANGZHOU TINCI MATERIALS TECH
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