A kind of preparation method of colored polymer nanosphere aqueous dispersion liquid

A technology of nanospheres and polymers, which can be used in dyeing, textiles and papermaking. It can solve problems such as increased viscosity, generation of air bubbles, and complicated preparation processes, and achieve good storage stability, increase steric hindrance, and improve Coulomb repulsion. Effect

Active Publication Date: 2017-09-15
YUYUE HOME TEXTILE
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] If utilize above-mentioned method to prepare this colored polymer nanosphere aqueous dispersion liquid, easily produce new problem
For example, the use of thickeners or surfactants is likely to increase the viscosity of the system and generate air bubbles, causing new troubles for subsequent applications
In addition, the preparation process of the above method is complicated and the cost is high

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] Step (1): Poly(styrene-methacrylic acid) nanospheres, poly(styrene-acrylic acid) and poly(styrene-butyl acrylate-methacrylic acid) Nanosphere dyeing, wherein the amount of disperse dye is 1% of the mass of polymer nanospheres, and the dyeing time is 1 hour.

[0016] Step (2): Nitrilotriacetic acid was added to the purified colored polymer nanosphere dispersion under the condition of pH 4, and magnetically stirred at room temperature for 2 hours. Wherein, the amount of nitrilotriacetic acid is 10% of the mass of the colored polymer nanospheres.

[0017] Step (3): Adjust the pH of the aqueous dispersion of colored polymer nanospheres obtained in the above step 2 to 8, and then use an ultrasonic pulverizer to sonicate for 20 minutes at a power of 100 watts.

[0018] Finally, a brightly colored aqueous dispersion of colored polymer nanospheres was obtained, and the stability coefficient was measured R At about 95%, it shows that the dispersion has good storage stability. ...

Embodiment 2

[0020] According to the above-mentioned embodiment 1, step 2 is changed, and ethylenediaminetetraacetic acid or sodium citrate is added to the purified colored polymer nanosphere dispersion in an amount of 10% of the colored polymer nanosphere content.

[0021] Finally, a brightly colored aqueous dispersion of colored polymer nanospheres was obtained, and the stability coefficient R was between 93% and 95%, indicating that the dispersion had good storage stability.

Embodiment 3

[0023] According to the above-mentioned embodiment 1, the amount of nitrilotriacetic acid in step 2 was changed to 2%, 4%, 6% and 8% of the mass of the colored polymer nanospheres. All the other formulas and processes are the same.

[0024] Finally, a brightly colored aqueous dispersion of colored polymer nanospheres was obtained, and the measured stability coefficient R was between 91% and 95%, indicating that the dispersion had good storage stability.

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Abstract

A method for preparing a colored polymer nanosphere aqueous dispersion. The invention relates to a preparation method of a colored polymer nanosphere aqueous dispersion. Use disperse dyes to dye polymer nanospheres to obtain colored nanosphere polymers, add nitrilotriacetic acid, ethylenediaminetetraacetic acid or sodium citrate to the dispersion, then adjust the pH between 8 and 9, and use ultrasonic Cell Shredder redisperses. The preparation method of the invention can provide a method for preparing a colored spherical polymer aqueous dispersion containing carboxyl groups on the premise that the surface functional groups of the colored polymer nanospheres and the viscosity of the solution are not affected.

Description

technical field [0001] The invention relates to a method for preparing an aqueous dispersion of colored polymer nanospheres, belonging to the field of functional polymer materials. Background technique [0002] Colored polymer nanospheres are a functional composite material that combines the dual characteristics of dyes and polymers. Compared with traditional dyes or pigments, they have better optical properties. Therefore, they are widely used in biomedicine, materials, printing, and textile printing and dyeing industries. There are broad application prospects. However, during the storage of the colored polymer nanosphere aqueous dispersion, aggregation and coagulation are prone to occur, causing troubles for subsequent applications. Therefore, how to prepare an aqueous dispersion of colored polymer nanospheres with better dispersion stability is the key to realize its application. [0003] Colorful polymer nanospheres are different from traditional dyes or pigments. For...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08J3/03C08L25/08C08L25/14C08K5/17C08K5/098D06P1/16D06P3/00D06P3/36
Inventor 房宽峻宋亚伟蔡玉青
Owner YUYUE HOME TEXTILE
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