Novel thickening agent for emulsion architecture coating and preparation method thereof

A kind of technology of architectural coating and emulsion type, which is applied in the direction of coating, etc., can solve the problems of coating without matting effect, mildew, viscosity reduction, etc., and achieve the effect of simple preparation method, good thixotropy and good film-forming property

Inactive Publication Date: 2015-06-24
威海市城源新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The compatibility of cellulose water-based derivatives and polymers is not very good, which often causes the loss of gloss of emulsion coatings, and it is easily degraded by microorganisms and moldy; polycarboxylate thickeners have obvious thickening effects under alkaline conditions , easy to form a film, has no matting effect on the coating, and is not easily degraded by microorganisms, but its water resistance and alkali resi

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] A kind of thickener for novel emulsion type architectural paint, by weight, comprises the following components:

[0029] 10 parts of polymethyl methacrylate emulsion,

[0030] 5 parts of polyurethane emulsion, 2 parts of sodium alginate,

[0031] 2 parts of soybean protein glue, 1 part of sodium dodecylbenzenesulfonate,

[0032] 5 parts of hydroxyethyl cellulose, 20 parts of water.

[0033] Its preparation method comprises the following steps:

[0034] (1) Add 10 parts of polymethyl methacrylate emulsion and 5 parts of polyurethane emulsion into a high-speed mixer, and stir for 20 minutes to obtain the mixed material 1;

[0035] (2) Mix and stir 2 parts of sodium alginate, 2 parts of soybean protein glue, 1 part of sodium dodecylbenzenesulfonate and 20 parts of water evenly, and ultrasonicate for 1 hour to obtain the mixture 2;

[0036] (3) Add the mixed material 2 and 5 parts of hydroxyethyl cellulose obtained in step (2) to the mixed material 1 obtained in step (1...

Embodiment 2

[0038] A kind of thickener for novel emulsion type architectural paint, by weight, comprises the following components:

[0039] 20 parts of polymethyl methacrylate emulsion,

[0040] 15 parts of polyurethane emulsion, 10 parts of sodium alginate,

[0041] 8 parts of soybean protein glue, 5 parts of sodium dodecylbenzenesulfonate,

[0042] 8 parts of hydroxyethyl cellulose, 50 parts of water.

[0043] Its preparation method comprises the following steps:

[0044] (1) Add 20 parts of polymethyl methacrylate emulsion and 15 parts of polyurethane emulsion into a high-speed mixer, stir for 30 minutes, and obtain the mixed material 1;

[0045] (2) 10 parts of sodium alginate, 8 parts of soybean protein glue, 5 parts of sodium dodecylbenzenesulfonate and 50 parts of water were mixed and stirred evenly, and the mixed material 2 was obtained by ultrasonication for 2 hours;

[0046] (3) Add the mixed material 2 and 8 parts of hydroxyethyl cellulose obtained in step (2) to the mixed ...

Embodiment 3

[0048] A kind of thickener for novel emulsion type architectural paint, by weight, comprises the following components:

[0049] 12 parts of polymethyl methacrylate emulsion,

[0050] 6 parts of polyurethane emulsion, 4 parts of sodium alginate,

[0051] 3 parts of soybean protein glue, 2 parts of sodium dodecylbenzenesulfonate,

[0052] 6 parts of hydroxyethyl cellulose, 25 parts of water.

[0053] Its preparation method comprises the following steps:

[0054] (1) Add 12 parts of polymethyl methacrylate emulsion and 6 parts of polyurethane emulsion into a high-speed mixer, and stir for 22 minutes to obtain the mixed material 1;

[0055] (2) 4 parts of sodium alginate, 3 parts of soybean protein glue, 2 parts of sodium dodecylbenzenesulfonate and 25 parts of water were mixed and stirred evenly, and the mixed material 2 was obtained by ultrasonication for 1.2 hours;

[0056] (3) Add the mixed material 2 and 6 parts of hydroxyethyl cellulose obtained in step (2) to the mixed ...

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PUM

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Abstract

The invention discloses a novel thickening agent for an emulsion architecture coating. The thickening agent comprises the following components in parts by weight: 10-20 parts of polymethyl methacrylate emulsion, 5-15 parts of polyurethane emulsion, 2-10 parts of sodium alginate, 2-8 parts of casein-soybean glue, 1-5 parts of sodium dodecyl benzene sulfonate, 5-8 parts of hydroxyethyl cellulose and 20-50 parts of water. The invention also discloses a method for preparing the thickening agent. The thickening agent provided by the invention is strong in thickening property, good in thixotropy, wide in pH value application range, good in stability, good in thickened coating film-forming property without extinction, free of micro-biological degradation effect, simple in preparation method, easy to operate and low in cost.

Description

Technical field: [0001] The invention relates to the field of paint additives, in particular to a novel emulsion-type thickener for architectural paints. Background technique: [0002] In the preparation of emulsion coatings, additives play a decisive role in the quality of coatings and their construction performance. Thickener is a kind of rheology additive. Adding thickener to emulsion paint can increase the consistency of emulsion paint, slow down the precipitation speed of pigment, and the sediment is loose and easy to stir evenly, so as to ensure the storage stability of paint. Adding some thickeners to latex paints can endow latex paints with thixotropy, which saves labor during the construction of latex paints, reduces sagging, and ensures the appearance and quality of the coatings. [0003] At present, the thickeners that are important to modern emulsion coatings mainly include aqueous cellulose derivatives, polycarboxylates and copolymer emulsions containing functi...

Claims

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Application Information

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IPC IPC(8): C09D7/12
CPCC08K5/42C09D7/44
Inventor 陈永林
Owner 威海市城源新材料科技有限公司
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