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Method for preparing high-performance starch glue inner wall coating

A technology for interior wall coatings and starch glue, applied in starch derivative coatings, coatings, etc., can solve problems such as affecting quality, poor water resistance and scrub resistance, and achieve improved quality, water resistance and scrub resistance. The effect of improving stability

Inactive Publication Date: 2017-10-17
合肥皖水信息科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, during the use of starch glue interior wall coatings, it was found that its water resistance and scrub resistance were poor, which greatly affected its quality.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] A preparation method for high-performance starch glue interior wall paint, comprising the following steps:

[0018] (1) After mixing potato starch and corn starch at a mass ratio of 3:1, add deionized water that is 8 times the weight of the total weight of the mixed starch, and stir evenly to prepare starch milk, then add the total weight of starch milk to it 0.01 times the weight of mixed acid, wherein the mixed acid is made of the following components by weight: 16 parts of o-coumaric acid, 7 parts of abietic acid, 30 parts of water;

[0019] (2) Add 0.01 times the weight of the total weight of the mixture to the mixture prepared in step (1) and add a sodium hypochlorite solution with a mass fraction of 70%, raise the temperature of the mixture to 80°C, and continue stirring for 30 minutes to obtain oxidized starch ;

[0020] (3) Add deionized water of equal weight to the oxidized starch, then add benzoic anhydride to it, react at 55°C for 2 hours, add ammonia water ...

Embodiment 2

[0026] A preparation method for high-performance starch glue interior wall paint, comprising the following steps:

[0027] (1) After mixing potato starch and corn starch according to the mass ratio of 4:1, add deionized water 9 times the weight of the total weight of the mixed starch to it, stir evenly, and after making starch milk, add the total weight of starch milk to it 0.02 times the weight of the mixed acid, wherein the mixed acid is made of the following components by weight: 18 parts of o-coumaric acid, 8 parts of abietic acid, 33 parts of water;

[0028] (2) Add 0.01 times the weight of the total weight of the mixture to the mixture prepared in step (1) and add a sodium hypochlorite solution with a mass fraction of 75%, raise the temperature of the mixture to 85°C, and continue stirring for 35 minutes to obtain oxidized starch ;

[0029] (3) Add deionized water of equal weight to the oxidized starch, then add benzoic anhydride to it, react at 57°C for 2.5 hours, add ...

Embodiment 3

[0035] A preparation method for high-performance starch glue interior wall paint, comprising the following steps:

[0036] (1) After mixing potato starch and corn starch according to the mass ratio of 5:1, add deionized water 10 times the weight of the total weight of the mixed starch to it, stir evenly, and after preparing starch milk, add the total weight of starch milk to it 0.03 times the weight of the mixed acid, wherein the mixed acid is made of the following components by weight: 20 parts of o-coumaric acid, 10 parts of abietic acid, 35 parts of water;

[0037] (2) Add 0.02 times the weight of the total weight of the mixture to the mixture prepared in step (1) and add a sodium hypochlorite solution with a mass fraction of 80%, raise the temperature of the mixture to 90°C, and continue stirring for 40 minutes to obtain oxidized starch ;

[0038] (3) Add deionized water of equal weight to the oxidized starch, then add benzoic anhydride to it, react at 60°C for 3 hours, a...

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Abstract

The invention discloses a method for preparing a high-performance starch glue inner wall coating. The method comprises the following operation steps: (1) preparing a starch emulsion from potato starch and corn starch, and putting mixed acid into the starch emulsion; (2) adding a sodium hypochlorite solution into the mixture prepared in the step (1) to obtain oxidized starch; (3) adding deionized water into the oxidized starch, and adding benzoic anhydride to obtain starch glue; (4) adding extender pigment, p-dodecylbenzene benzene sulfonyl chloride, an alkyl ketene dipolymer, a defoaming agent, color paste and deionized water into the starch glue, and uniformly mixing and stirring, thereby obtaining the high-performance starch glue inner wall coating. The method for preparing the high-performance starch glue inner wall coating, which is disclosed by the invention, is simple to operate and stable in process, continuous industrial production is achieved, the inner wall coating prepared with the method meets specified values of different standards, particularly excellent water resistance and scrubbing resistance are achieved, and thus the quality of products is greatly improved.

Description

technical field [0001] The invention belongs to the field of interior wall paint preparation, in particular to a preparation method of high-performance starch glue interior wall paint. Background technique [0002] Starch is a kind of natural polymer material with abundant resources, cheap price and wide application. Decreasing, which poses a threat to chemical products that use petroleum as raw materials, thus prompting domestic and foreign researchers to look for substitutes, among which starch adhesives are slowly entering the public's sight due to their excellent performance and low price. Using starch adhesive as raw material to prepare interior wall paint is widely welcomed by consumers. However, during the use of starch glue interior wall coatings, it is found that its water resistance and scrub resistance are poor, which greatly affects its quality. Contents of the invention [0003] In order to solve the above problems, the invention provides a kind of preparati...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D103/10C09D7/12C08B31/18C08B31/04
CPCC09D103/10C08B31/04C08B31/185C08K2003/2241C08K2003/265C08K2201/014C08L2205/025C08L2205/03C08L3/10C08K13/02C08K5/42C08K5/07C08K3/22C08K3/26C08K3/34
Inventor 白娜娜
Owner 合肥皖水信息科技有限公司
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