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Electrolyte-resistant associated alkali swelling thickener as well as preparation method and application thereof

A technology resistant to electrolytes and thickeners, applied in applications, household appliances, coatings, etc., can solve the problems of reduced thickening performance, restrictions on the application of alkali-swellable thickeners, poor thickening effects, etc., to achieve thickening High efficiency, low toxicity, and good electrolyte resistance

Inactive Publication Date: 2021-04-30
广州星业科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, most alkali-swellable thickeners are very sensitive to electrolytes, and their thickening performance is greatly reduced in low-concentration electrolyte solutions, which limits the application of alkali-swellable thickeners, especially in household and personal care
Home and Personal Care Various cleaning and skin care product formulations have high levels of anionic surfactants, alkali-swellable thickeners and associative alkali-swellable thickeners have a thickening effect in these formulations containing high levels of anionic surfactants poor performance

Method used

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  • Electrolyte-resistant associated alkali swelling thickener as well as preparation method and application thereof
  • Electrolyte-resistant associated alkali swelling thickener as well as preparation method and application thereof
  • Electrolyte-resistant associated alkali swelling thickener as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] (1) Pour 260g of deionized water into the reactor, add 5g of sodium dodecylsulfonate, and heat up to 82°C under stirring;

[0037] (2) dissolve 0.3g ammonium persulfate with 60g deionized water, be mixed with initiator solution;

[0038] (3) Take a beaker and mix the following monomers evenly: 105g ethyl acrylate, 35g methacrylic acid, 1.5g BASF BEPEGMA and 0.09g N'N methylenebisacrylamide, take 7.5g mixed monomer and 3g step (2 ) Gained initiator solution is added respectively in step (1) reactor and is incubated 30min;

[0039] (4) Add the remaining mixed monomer and the remaining initiator solution to the reactor dropwise for 2.5 hours. After the dropwise addition, keep warm for 1 hour to obtain an electrolyte-resistant associative alkali-swelling thickener.

Embodiment 2

[0041] (1) Pour 260g of deionized water into the reactor, add 5g of sodium dodecylsulfonate, and heat up to 82°C under stirring;

[0042] (2) dissolve 0.3g ammonium persulfate with 60g deionized water, be mixed with initiator solution;

[0043] (3) Take a beaker and mix the following monomers evenly: 100g ethyl acrylate, 35g methacrylic acid, 5g acrylamide, 1.5g BASF BEPEGMA and 0.09g N'N methylenebisacrylamide, take 7.5g mixed monomer and 3g step (2) gained initiator solution joins respectively in step (1) reactor and is incubated 30min;

[0044] (4) Add the remaining mixed monomer and the remaining initiator solution to the reactor dropwise for 2.5 hours. After the dropwise addition, keep warm for 1 hour to obtain an electrolyte-resistant associative alkali-swelling thickener.

Embodiment 3

[0046] (1) Pour 260g of deionized water into the reactor, add 5g of sodium dodecylsulfonate, and heat up to 82°C under stirring;

[0047] (2) dissolve 0.3g ammonium persulfate with 60g deionized water, be mixed with initiator solution;

[0048] (3) Take a beaker and mix the following monomers evenly: 100g ethyl acrylate, 35g methacrylic acid, 5g 2-acrylamido-2-methylpropanesulfonic acid, 1.5g BASF BEPEGMA and 0.09g N'N methylene For bisacrylamide, take 7.5g of mixed monomers and 3g of the initiator solution obtained in step (2), and add them to the reactor of step (1) to keep warm for 30min;

[0049] (4) Add the remaining mixed monomers and the remaining initiator solution to the reactor dropwise for 2.5 hours, and keep warm for 1 hour after the dropping to obtain the electrolyte-resistant associative alkali-swelling thickener.

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Abstract

The invention belongs to the field of polymer material synthesis, and discloses an electrolyte-resistant associated alkali swelling thickener as well as a preparation method and application thereof. The thickening agent is prepared from the following raw materials in percentage by mass: 17%-60% of a hydrophilic monomer, 40%-80% of a hydrophobic monomer, 0.5%-10% of an amphiphilic association monomer, 0.04%-0.5% of a cross-linking monomer, 1%-8% of an emulsifier, 0.06%-0.8% of an initiator and the balance of a solvent, wherein all the percentages are the mass percentage of the raw materials in the total monomer. The electrolyte-resistant alkali swelling thickener can form a three-dimensional network structure, is excellent in thickening effect and thixotropic property, has excellent electrolyte resistance, and can be widely applied to the aspects of home furnishing, personal care, spinning, printing ink, building and coating and the like.

Description

technical field [0001] The invention belongs to the field of polymer material synthesis, in particular to an electrolyte-resistant associative alkali-swelling thickener and its preparation method and application. Background technique [0002] Alkali-swellable thickeners refer to polymers with carboxyl functional groups obtained by free-radical polymerization of ethylenically unsaturated monomers. These polymers are virtually insoluble in water at low pH, but exhibit viscosifying and thickening properties when dissolved or swelled in water under highly ionized conditions. Due to the good thickening ability, rheological adjustment effect and easy application operation (especially emulsion) of alkali-swellable thickeners, they have brought huge industrial value, so many invention patents for alkali-swellable thickeners have been applied for and authorized. Alkali-swellable thickener applications include: latex paint, carpet backing, adhesives, paper coatings, pesticide product...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F283/06C08F220/18C08F220/06C08F220/56C08F220/58C08F222/38C08F218/18C08F216/12C08F2/26C09D11/107C09D151/08
CPCC08F283/065C08F2/26C09D11/107C09D151/08
Inventor 程良瑜孟巨光李建
Owner 广州星业科技股份有限公司
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