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Preparation method of casein modified sol solution

A casein and modification technology, applied in the coating and other directions, can solve the problems of easy peeling of the coating, weak interior wall paint coating, weak adhesion, etc., to improve the uniform stability and strength, and improve the anti-peeling performance. , Improve the effect of dispersion compatibility

Inactive Publication Date: 2018-11-06
淮安市冰青建设工程管理有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Interior wall paint is an important part of building decoration materials. Most of them are made of emulsion, deionized water, pigments and other additives. However, most interior wall paints still have weak coatings, weak adhesion, and easy peeling off. , washing resistance, acid and alkali resistance, poor stain resistance, and harmful substances greatly exceed the national limit standards. Therefore, it is desirable to produce a kind of interior wall architectural paint with good flexibility, non-toxic and harmless look forward to
[0003] At the same time, in order to enhance the surface mechanical strength of traditional interior wall paint, inorganic filler components are often added to it, and the compatibility of inorganic fillers with the base emulsion is poor, which is easy to cause agglomeration and reduces the uniformity and stability of the finished paint surface

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] 1) Preparation of casein modified sol solution

[0027] In parts by weight, each raw material was weighed: 6 casein, 70 tetrabutyl titanate, 0.8 saturated octadecylamide, 0.4 2-bromo-4-methylphenol, and 10 hydrogen peroxide with a concentration of 5% by mass.

[0028] The preparation method of described casein modified sol solution, comprises the following steps:

[0029] (1) Take 2-bromo-4-methylphenol, add it to 3 times its weight in absolute ethanol, stir evenly, increase the temperature to 55°C, keep stirring for 10 minutes, and obtain an alcohol dispersion;

[0030] (2) Mix casein and saturated octadecylamide, add to deionized water 20 times the weight of the mixture, and stir evenly to obtain an aqueous amide solution;

[0031] (3) Mix the above-mentioned alcohol dispersion and amide aqueous solution, stir evenly, add tetrabutyl titanate, stir and react for 4 hours, add the above-mentioned hydrogen peroxide dropwise, after the dropwise addition, raise the tempera...

Embodiment 2

[0039] 1) Preparation of casein modified sol solution

[0040] In parts by weight, each raw material was weighed: casein 8, tetrabutyl titanate 80, saturated octadecylamide 2, 2-bromo-4-methylphenol 1, and hydrogen peroxide 12 with a concentration of 7% by mass.

[0041] The preparation method of described casein modified sol solution, comprises the following steps:

[0042] (1) Take 2-bromo-4-methylphenol, add it to 5 times its weight in absolute ethanol, stir evenly, increase the temperature to 60°C, keep stirring for 17 minutes, and obtain an alcohol dispersion;

[0043] (2) Mix casein and saturated octadecylamide, add to deionized water 30 times the weight of the mixture, and stir evenly to obtain an aqueous amide solution;

[0044] (3) Mix the above alcohol dispersion and amide aqueous solution, stir evenly, add tetrabutyl titanate, stir and react for 6 hours, add the above hydrogen peroxide dropwise, after the dropwise addition, raise the temperature to 75°C, keep stirr...

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PUM

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Abstract

The invention discloses a preparation method of a casein modified sol solution. The preparation method comprises following steps: (1) adding 2-bromo-4-methyl phenol into anhydrous ethanol, evenly stirring, raising the temperature, and stirring at a constant temperature to obtain an alcohol dispersion liquid; (2) mixing casein and saturated stearamide, adding the mixture into deionized water, and evenly stirring to obtain an amide water solution; and (3) mixing the alcohol dispersion liquid and the amide water solution, evenly stirring, adding tetrabutyl titanate, stirring to trigger reactions,dropwise adding hydrogen peroxide, after hydrogen peroxide is completely added, raising the temperature, stirring at a constant temperature, and carrying out distillation to remove alcohol. At first,tetrabutyl titanate is taken as the precursor; and doping-modified sol is obtained through casein doping, which can improve the flexibility and bonding strength of a finished paint.

Description

technical field [0001] The invention belongs to the field of coatings, and in particular relates to a preparation method of casein modified sol solution. Background technique [0002] Interior wall paint is an important part of building decoration materials. Most of them are made of emulsion, deionized water, pigments and other additives. However, most interior wall paints still have weak coatings, weak adhesion, and easy peeling off. , washing resistance, acid and alkali resistance, poor stain resistance, and harmful substances greatly exceed the national limit standards. Therefore, it is desirable to produce a kind of interior wall architectural paint with good flexibility, non-toxic and harmless look forward to. [0003] At the same time, in order to enhance the surface mechanical strength of traditional interior wall paint, inorganic filler components are often added to it. However, the compatibility of inorganic fillers with the base emulsion is poor, and it is easy to...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D133/04C09D7/62C09D7/63C09D7/65
CPCC08K2003/2241C08K2201/014C08L2201/08C09D7/62C09D7/63C09D7/65C09D143/04C08L89/005C08L67/00C08K13/06C08K9/02C08K9/04C08K5/098C08K3/22C08K5/13
Inventor 刘传礼
Owner 淮安市冰青建设工程管理有限公司