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Styrene-acrylic emulsion for priming paint as well as preparation method and application thereof

A styrene-acrylic emulsion and coating technology, used in paper coatings, coatings, textiles and papermaking, etc., can solve problems such as poor surface strength of paper, and achieve the effect of enhancing surface strength and improving the phenomenon of hair loss and powder loss.

Active Publication Date: 2010-05-12
SHANGHAI DONGSHENG NEW MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Chinese patent CN101280035A discloses a method for preparing an emulsion. The prepared emulsion is applied to paper coatings. The fluidity and water resistance of the coating are good, but the surface strength of the paper is poor after coating on paper.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0050] Synthesis of styrene-acrylic emulsion for primer:

[0051] a) Mix 25g of n-butyl acrylate, 70g of styrene and 5g of acrylic acid to make a mixed monomer. spare;

[0052] b) 0.05g of sodium dodecylbenzenesulfonate, 0.05g of polyoxyethylene (20) sorbitan monooleate (Tween 80), and 0.1g of potassium persulfate were dissolved in 10g of deionized water and set aside;

[0053] c) Dissolving 0.5 g of methacrylamide ethyl ethylene urea in 10 g of deionized water, set aside;

[0054] d) Add 80g of the mixed monomer in step a) to 0.4g sodium dodecylbenzenesulfonate, 0.1g polyoxyethylene (20) sorbitan monooleate (Tween 80), 0.2g persulfuric acid Potassium and 50g deionized water were dissolved into an aqueous solution, stirred for 30 minutes, and set aside;

[0055] e) Add 20g of the mixed monomer in step a) to 0.05g sodium dodecylbenzenesulfonate, 0.05g polyoxyethylene (20) sorbitan monooleate (Tween 80), 0.1g persulfuric acid In the aqueous solution of potassium and 23.6g deio...

Embodiment 2

[0058] Synthesis of styrene-acrylic emulsion for primer:

[0059] a) Mix 69g of ethyl acrylate, 30g of methyl styrene and 1g of methacrylic acid to make a mixed monomer. spare.

[0060] b) Dissolve 0.1 g of sodium dialkyl-2-sulfosuccinate, 0.4 g of sorbitan monolaurate (Span 20), and 0.5 g of sodium persulfate in 10 g of deionized water. spare.

[0061] c) Dissolve 1.5 g of diacetone acrylamide in 10 g of deionized water. spare.

[0062] d) Add 1g of sodium dodecyl naphthalenesulfonate, 1g of sorbitan monolaurate (Span 20), 2g of sodium persulfate and 50g of deionized water to the mixed monomers in the step of 100ga) to dissolve into an aqueous solution, Stir for 30 minutes. spare.

[0063] e) In an aqueous solution of 0.5g sodium dodecyl naphthalene sulfonate, 1.5g polyoxyethylene monooleate, 2g sodium persulfate and 201.9g deionized water, react at 95°C for 10 minutes, then add dropwise d ) step, add dropwise for 1 hour. Add dropwise the mixed solution in the step b)...

Embodiment 3

[0066] Synthesis of styrene-acrylic emulsion for primer:

[0067] a) Mix 20g of methyl methacrylate, 27g of 2-ethylhexyl acrylate, 50g of methyl styrene and 3g of methacrylic acid to make a mixed monomer. spare.

[0068] b) Dissolve 0.1 g of sodium sulfosuccinate, 0.2 g of polyoxypropylene stearate, and 0.3 g of ammonium persulfate in 10 g of deionized water. spare.

[0069] c) Dissolve 0.5 g of diacetone acrylamide and 0.5 g of methacrylamide ethyl ethylene urea in 10 g of deionized water. spare.

[0070] d) Add 90 g of the mixed monomers in step a) to 0.2 g of potassium oleate, 0.8 g of diethylene glycol fatty acid ester, 1 g of ammonium persulfate and 50 g of deionized water to dissolve into an aqueous solution, and stir for 30 minutes. spare.

[0071] e) Add 10g of the mixed monomer in step a) to an aqueous solution of 0.8g sodium lauryl sulfate, 0.2g sorbitan monooleate (Span 80), 1g ammonium persulfate and 92.15g deionized water , react at 75°C for 20 minutes, then...

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Abstract

The invention provides a styrene-acrylic emulsion for priming paint as well as a preparation method and an application thereof. The preparation method comprises the following steps: by using a surfactant compound from an anionic surfactant and a nonionic surfactant as an emulsifier and using peroxide as an initiator, carrying out free-radical emulsion polymerization on (methyl) acrylic monomer, (methyl) acrylate monomer, (methyl) styrene, cross-linking monomer and an accelerant under the conditions of 50-95 DEG C and normal pressure to obtain an emulsion; and then, neutralizing the obtained emulsion with aqueous alkali, and regulating the pH value to be 7-10 to obtain a finished product. The styrene-acrylic emulsion for priming paint is a product which can be used for paper-making paint and has high performance and environmental protection. When the product is applied to the priming paint of coated paper, the surface strength of the coated paper can be obviously increased, and the phenomena of fur falling and powder falling can be improved.

Description

technical field [0001] The invention relates to a styrene-acrylic emulsion for primer, which is applied to the primer of coated paper. Background technique [0002] Emulsions are widely used in the bonding of paper coatings. In the application process, the performance requirements of emulsions are getting higher and higher. With the improvement and development of emulsion application technology, the emulsion is required to have good process applicability, among which the most important thing is the cohesiveness of styrene-acrylic emulsion. The application of emulsion in paper coating can significantly improve the surface strength of paper and reduce the phenomenon of paper shedding and dusting. [0003] Chinese patent CN101280035A discloses a method for preparing an emulsion. The prepared emulsion is applied to paper coatings. The fluidity and water resistance of the coatings are good, but the surface strength of the paper is poor after coating on paper. Contents of the i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F212/08C08F220/10C08F220/06C08F220/14C08F220/18C08F220/28C08F2/26C08F2/30C09D125/14D21H19/22
Inventor 施晓旦王养臣尹东华
Owner SHANGHAI DONGSHENG NEW MATERIALS
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