Epoxy resin modified styrene-acrylic emulsion and preparation method thereof

A technology of epoxy resin and styrene-acrylic emulsion, applied in coating, paper coating, textile and papermaking, etc., can solve the problems of poor surface strength of paper and poor water resistance of emulsion, so as to improve strength, good adhesion, and improve surface Effects of strength and gloss

Inactive Publication Date: 2013-01-16
SHANGHAI DONGSHENG NEW MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] Chinese patent CN101280035A discloses a method for preparing an emulsion. The prepared emulsion is applied to paper coatings, and the coatin...

Method used

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  • Epoxy resin modified styrene-acrylic emulsion and preparation method thereof
  • Epoxy resin modified styrene-acrylic emulsion and preparation method thereof
  • Epoxy resin modified styrene-acrylic emulsion and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] 20g of n-butyl acrylate, 74g of styrene, 6g of acrylic acid, 8g of epoxy resin (E-42) were fully mixed and dissolved at room temperature, and 2g of 2-hydroxyethyl methacrylate and 0.25g of dodecane were added Sodium phenyl sulfonate, 0.1g polyoxyethylene (20) sorbitan monooleate (Tween 80), 60g deionized water in a mixed aqueous solution, and then on the JB90-D type strong electric stirring machine, to Stir at a rotating speed of 1000rpm for 30 minutes to obtain a monomer pre-emulsion;

[0028] In a four-necked bottle filled with 0.2g sodium bicarbonate, 0.25g sodium dodecylbenzenesulfonate, 0.1g polyoxyethylene (20) sorbitan monooleate (Tween 80), and 176g deionized water Add 15g of the above-mentioned pre-emulsion to the mixture, raise the temperature to 60°C, add an aqueous solution of 0.1g potassium persulfate dissolved in 10g deionized water, react until the emulsion turns blue, and drop the remaining pre-emulsion and 0.3g potassium persulfate dissolved in 10g Aqu...

Embodiment 2

[0030] 40g of ethyl acrylate, 50g of methyl styrene, 10g of methacrylic acid, and 4g of epoxy resin (E-20) were fully mixed and dissolved at room temperature, and then 1g of 2-hydroxyethyl acrylate and 0.1g of dialkyl were added - Sodium 2-sulfosuccinate, 0.4g sorbitan monolaurate (Span 20), 1.5g polyoxyethylene monooleate, 60g deionized water, and then in JB90-D type Stir at a speed of 1500 rpm for 30 minutes on a powerful electric mixer to obtain a monomer pre-emulsion.

[0031] Add 15g of the above pre-emulsion to a four-necked bottle containing 2g disodium hydrogen phosphate, 1.5g sodium dodecylnaphthalenesulfonate, 1g sorbitan monolaurate (Span 20), and 26.7g deionized water , raise the temperature to 95°C, add 1g of sodium persulfate dissolved in 10g of deionized water, react until the emulsion turns blue, then add the remaining pre-emulsion and 3g of sodium persulfate in 10g of deionized water dropwise, drop for 1h After finishing, keep warm at 80°C for 1 hour, after c...

Embodiment 3

[0033] Add 1.5g of 10g of methyl methacrylate, 34g of 2-ethylhexyl acrylate, 48g of methyl styrene, 8g of methacrylic acid and 10g of epoxy resin (E-20) to the mixture that was fully mixed and dissolved at room temperature 2-hydroxypropyl methacrylate and 0.1g sodium succinate sulfonate, 0.2g polyoxypropylene stearate, 0.5g sodium lauryl sulfate, 0.2g sorbitan monooleate ( Span 80) and 60g of deionized water, and then stirred at a speed of 2000rpm for 20 minutes on a JB90-D powerful electric stirring machine to obtain a monomer pre-emulsion.

[0034] Add 15g of the above-mentioned pre-emulsion in a four-necked bottle equipped with 0.5g sodium bicarbonate, 0.2g potassium oleate, 0.8g diethylene glycol fatty acid ester, 0.3g sodium lauryl sulfate, and 94.9g deionized water, Raise the temperature to 75°C, add 0.8g of potassium persulfate dissolved in 10g of deionized water, react until the emulsion turns blue, and add the remaining pre-emulsion and 1.5g of potassium persulfate in...

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Abstract

The invention discloses epoxy resin modified styrene-acrylic emulsion and a preparation method thereof. The epoxy resin modified styrene-acrylic emulsion comprises, by weight, 20-44 parts of (methyl) acrylate, 50-74 parts of (methyl) styrene, 6-10 parts of (methyl) acyclic acid, 3-10 parts of epoxy resin, 0.7-4.5 parts of emulsifier, 0.4-4.5 parts of initiator, 0.2-2 parts of buffer agent, 2-8 crosslinking monomer, 4-10 parts of aqueous alkali and 90-290 parts of water. The epoxy resin modified styrene-acrylic emulsion is high in fiber binding force and fine in film-forming property and water resistance. The epoxy resin modified styrene-acrylic emulsion is applied to paint of coated paper. Compared with common emulsion, the epoxy resin modified styrene-acrylic emulsion can evidently improve surface strength and gloss of paper. The epoxy resin modified styrene-acrylic emulsion is high in performance, environment-friendly and applicable to surface sizing of papermaking coating printing.

Description

technical field [0001] The invention relates to an epoxy resin modified styrene-acrylic emulsion, which is applied to coating paper coating. 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 obviously improve the surface strength of paper and improve the glossiness of paper. [0003] Chinese patent CN101280035A discloses a method for preparing an emulsion. The prepared emulsion is applied to paper coating, and the fluidity of the coating is good. However, after coating on paper, the surface strength of the paper is poor and the water resistance of the emulsion itself is p...

Claims

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Application Information

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IPC IPC(8): C08F283/10C08F220/18C08F212/08C08F220/06C08F220/28C08F212/12C08F220/14C08F2/26C08F2/30D21H19/20
Inventor 施晓旦沈安成王养臣
Owner SHANGHAI DONGSHENG NEW MATERIALS
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