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Polyacrylate/nano ZnO composite paint printing adhesive prepared by soap-free emulsion polymerization and preparation method thereof

A technology of soap-free emulsion polymerization and polyacrylate, which is applied in dyeing, textiles and papermaking, etc. It can solve the problems of restricting the application of pigment printing, environmental hazards, and the reduction of color fastness of printed fabrics, and achieves the improvement of low color fastness of printing Effect

Inactive Publication Date: 2015-03-04
SHAANXI UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, polyacrylate printing adhesives are generally prepared by emulsion polymerization. The presence of surfactants not only reduces the color fastness of printed fabrics, but also causes harm to the environment, which limits the application of pigment printing to a large extent.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Step 1: Weigh 2.5g of nano-ZnO into 17.63g of deionized water, add 41.13g of ethanol, use an ultrasonic pulverizer to sonicate at a power of 400w for 15min, pour it into a three-necked bottle, and add 0.5g of vinyl triethoxy Base silane, at a stirring speed of 300r / min, heat up to 85°C and keep warm for 2h, cool naturally, centrifuge and wash and separate for 3 times, then disperse in 50g deionized water to obtain a modified nano-ZnO aqueous dispersion;

[0024] Step 2: dissolving 0.09 g of ammonium persulfate in 18 g of deionized water to obtain an aqueous solution of ammonium persulfate;

[0025] Pour 54.06g of deionized water and 18.84g of modified nano-ZnO aqueous dispersion into a 250mL three-necked flask equipped with a stirrer and a condensing device, stir at 300r / min for 30min, add dropwise 5.38g of butyl acrylate and 3.43g of methacrylic acid For the mixed monomer of methyl ester, control the dropping time for 30 minutes, adjust the stirring rate to 250r / min af...

Embodiment 2

[0027] Step 1: Weigh 2.5g of nano-ZnO into 17.63g of deionized water, add 41.13g of ethanol, use an ultrasonic pulverizer to sonicate at a power of 600w for 15min, pour it into a three-necked bottle, and add 0.37g of vinyl triethoxy Base silane, at a stirring speed of 300r / min, heat up to 85°C and keep warm for 2h, cool naturally, centrifuge and wash and separate for 3 times, then disperse in 50g deionized water to obtain a modified nano-ZnO aqueous dispersion;

[0028] Step 2: dissolving 0.11 g of ammonium persulfate in 18 g of deionized water to obtain an aqueous solution of ammonium persulfate;

[0029] Pour 50.15g of deionized water and 22.94g of modified nano-ZnO aqueous dispersion into a 250mL three-necked flask equipped with a stirrer and a condensing device, stir at 300r / min for 30min, add dropwise 5.26g of butyl acrylate and 3.51g of methacrylic acid For the mixed monomer of methyl ester, control the dropping time for 30 minutes, adjust the stirring rate to 250r / min a...

Embodiment 3

[0031] Step 1: Weigh 2.5g of nano-ZnO into 17.63g of deionized water, add 41.13g of ethanol, use an ultrasonic pulverizer to sonicate for 15min at a power of 800w, pour it into a three-necked bottle, and add 0.25g of vinyl triethoxy Base silane, at a stirring speed of 300r / min, heat up to 85°C and keep warm for 2h, cool naturally, centrifuge and wash and separate for 3 times, then disperse in 50g deionized water to obtain a modified nano-ZnO aqueous dispersion;

[0032] Step 2: dissolving 0.14 g of ammonium persulfate in 18 g of deionized water to obtain an aqueous solution of ammonium persulfate;

[0033] Pour 46.24g of deionized water and 27.05g of modified nano-ZnO aqueous dispersion into a 250mL three-necked flask equipped with a stirrer and a condensing device, stir at 300r / min for 30min, add dropwise 5.15g of butyl acrylate and 3.59g of methacrylic acid For the mixed monomer of methyl ester, control the dropping time for 30 minutes, adjust the stirring rate to 250r / min a...

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PUM

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Abstract

The invention relates to a polyacrylate / nano ZnO composite paint printing adhesive prepared by soap-free emulsion polymerization and a preparation method thereof. The surfactant added into the printing adhesive can lower the color fastness of the printing fabric. The preparation method comprises the following steps: by using vinyltriethoxysilane to modify nano ZnO and using the vinyltriethoxysilane as a stabilizer, dropwisely adding butyl acrylate / methyl methacrylate mixed monomers, adding an ammonium persulfate water solution in batches, filtering and discharging to obtain the printing adhesive. The method avoids the use of the surfactant; when being applied to a fabric paint printing technique, the method overcomes the defect of low printing color fastness in the polyacrylate paint printing adhesive; and the wet rubbing color fastness of the printed fabric reaches Grade 3, the dry rubbing color fastness reaches Grade 4, and the soaping staining fastness reaches Grade 4 above.

Description

technical field [0001] The invention relates to a preparation method of a paint printing adhesive for fabrics, in particular to a polyacrylate / nano ZnO composite paint printing adhesive prepared by a soap-free emulsion polymerization method and a preparation method thereof. Background technique [0002] Pigment printing is the simplest and most common printing method. It uses the principle of adhesive to form a film on the surface of the fabric to adhere various pigments without affinity and reactivity to the fabric, thus giving the fabric various colors and colors. Pattern, which has the advantages of simple process, no washing after color fixing, energy saving and water saving, etc. It is suitable for various fibers and blended fabrics. Polyacrylate printing adhesives have excellent film-forming properties, adhesive properties, weather resistance and gloss and color retention, and have become the most widely used film-forming substances in textile pigment printing materia...

Claims

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Application Information

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IPC IPC(8): C08F220/18C08F220/14C08F2/44C08F2/22D06P1/52D06P1/673
Inventor 高党鸽冯军芳吕斌马建中叶文焕
Owner SHAANXI UNIV OF SCI & TECH
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