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Associated thickening agent generated by rheologic and modified monomer and preparation method of associated thickening agent

An associative thickener and rheological modification technology, applied in the direction of coating, can solve the problems of low slag output, poor product performance, low shear viscosity shear viscosity, etc., to achieve less slag output , Improve freeze-thaw stability, reduce the effect of adding amount

Inactive Publication Date: 2014-08-13
SHANGHAI ZHENGOU IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to solve the problem of poor performance of the prior art products, to provide an associative thickener produced by rheologically modified monomers and its preparation method, which is a kind of polymer stability, and the amount of slag is very small , can balance low-shear viscosity and high-shear viscosity, associative thickener with excellent anti-splash performance, can be used in a variety of systems, and has wider applicability

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0056] The specific steps of the preparation method of the associative thickener generated by the rheological modification monomer of the present invention are as follows:

[0057] A, the configuration of reaction raw material, the composition of described reaction raw material and weight ratio are:

[0058] (1) Monomer pre-emulsion:

[0059] Deionized water 89.21

[0060] Anionic emulsifier (sodium tridecyl sulfate) 11.00

[0061] MAA 58.93

[0062] EA 70.71

[0063] Rheology Modified Monomer (HPM-400) 18.07

[0064] (2) Kettle bottom material:

[0065] Deionized water 192.38

[0066] Anionic emulsifier (sodium tridecyl sulfate) 1.61

[0067] Polymeric Stabilizer (COPS-3) 0.74

[0068] (3) Seed Initiator:

[0069] Deionized water 6.44

[0070] Ammonium persulfate 0.40

[0071] (4) Co-progressive initiator:

[0072] Deionized water 40.23

[0073] Ammonium persulfate 0.22

[0074] (5) After adding the initiator:

[0075] Deionized water 9.66

[0076] tert-butyl ...

Embodiment 2

[0088] The specific steps of the preparation method of the associative thickener generated by the rheological modification monomer of the present invention are as follows:

[0089] A, the configuration of reaction raw material, the composition of described reaction raw material and weight ratio are:

[0090] (1) Monomer pre-emulsion:

[0091] Deionized water 89.21

[0092] Anionic emulsifier (sodium tridecyl sulfate) 10.97

[0093] MAA 57.80

[0094] EA71.89

[0095] Rheology Modified Monomer (HPM400) 17.57

[0096] (2) Kettle bottom material:

[0097] Deionized water 192.81

[0098] Anionic emulsifier (sodium tridecyl sulfate) 1.61

[0099] Polymeric Stabilizer (COPS-3) 0.69

[0100] (3) Seed Initiator:

[0101] Deionized water 6.44

[0102] Ammonium persulfate 0.40

[0103] (4) Co-progressive initiator:

[0104] Deionized water 40.23

[0105] Ammonium persulfate 0.22

[0106] (5) After adding the initiator:

[0107] Deionized water 9.66

[0108] tert-butyl hy...

Embodiment 3

[0113] The specific steps of the preparation method of the associative thickener generated by the rheological modification monomer of the present invention are as follows:

[0114] A, the configuration of reaction raw material, the composition of described reaction raw material and weight ratio are:

[0115] (1) Monomer pre-emulsion:

[0116] Deionized water 89.21

[0117] Anionic emulsifier (sodium tridecyl sulfate) 10.97

[0118] MAA 58.93

[0119] EA 70.71

[0120] Rheology Modified Monomer (HPM-400) 18.07

[0121] (2) Kettle bottom material:

[0122] Deionized water 192.40

[0123] Anionic emulsifier (sodium tridecyl sulfate) 1.61

[0124] Polymeric Stabilizer (COPS-3) 0.69

[0125] (3) Seed Initiator:

[0126]Deionized water 6.44

[0127] Ammonium persulfate 0.40

[0128] (4) Co-progressive initiator:

[0129] Deionized water 40.23

[0130] Ammonium persulfate 0.22

[0131] (5) After adding the initiator:

[0132] Deionized water 9.66

[0133] tert-butyl h...

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Abstract

The invention discloses an associated thickening agent generated by a rheologic and modified monomer and a preparation method of the associated thickening agent. The associated thickening agent generated by the rheologic and modified monomer is characterized by being a polymer emulsion with solid content of 28-32%, wherein the polymer emulsion is formed by carrying out emulsion polymerization reaction on methacrylic acid (MAA) accounting for 38-42% of the total mass of a monomer, ethyl acrylate (EA) accounting for 46-50% of the total mass of the monomer and a docosyl-polyoxyethylene methacrylate and tristyrylphenol ethoxylate methacrylate mixture HPM-400 accounting for 10-13% of the total mass of the monomer; the adding amount of an emulsifier accounts for 6-9% of the weight of the monomer. The thickening agent prepared by the invention can be used for remarkably increasing the viscosity of water and can also be used for increasing the viscosity of a waterborne paint and improving the splashing resistance of the waterborne paint when used for the waterborne paint.

Description

technical field [0001] The invention relates to a thickener for coatings, in particular discloses an associative thickener produced by a rheology-modified monomer and a preparation method thereof, belonging to the field of thickeners in coating additives. The invention thickens The agent can be directly used in water-based paints to effectively increase the viscosity of water-based paints and improve the splash resistance of water-based paints. Background technique [0002] Thickener is a polymer additive used to increase the viscosity of water-based systems and improve rheology. Adding a little thickener to the system that needs to be thickened can increase the apparent viscosity of the system to meet the requirements. Especially in water-based coatings and adhesives, etc., it can endow the product with excellent construction performance and physical and chemical stability. In coatings, thickeners, as functional additives to adjust the rheological properties and water ret...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F290/06C08F220/06C08F220/18C08F2/26C09D7/12
Inventor 宗正新陈凯张海泉
Owner SHANGHAI ZHENGOU IND
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