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Styrene-acrylic emulsion for canvas paint use and its preparation method

A styrene-acrylic emulsion and coating technology, which is applied in fiber types, textiles and papermaking, fiber treatment, etc., can solve the problems of unsatisfactory comprehensive performance, poor quality stability, high price, etc., achieve narrow size distribution and improve rheology , good adhesion effect

Active Publication Date: 2012-04-04
宁波高新区康大美术新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there is no domestic company specializing in the production of emulsions for canvas paints.
At present, most domestic canvas factories can only use the emulsion used in the construction industry to realize the production of canvas paint by highlighting its key performance, abandoning its secondary performance, and combining different performances. The quality stability is very poor
In addition, most of the canvas special coatings used by foreign canvas manufacturers are based on the so-called general-purpose pure acrylic rubber or styrene-acrylic latex produced by famous brand companies such as Rohm and Haas. They need to be prepared by adding a variety of additives on site. Performance isn't quite as good either, and it's expensive

Method used

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  • Styrene-acrylic emulsion for canvas paint use and its preparation method
  • Styrene-acrylic emulsion for canvas paint use and its preparation method
  • Styrene-acrylic emulsion for canvas paint use and its preparation method

Examples

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preparation example Construction

[0033]According to another aspect of the present invention, there is provided a method for preparing a styrene-acrylic emulsion for canvas paints, the styrene-acrylic emulsion is the styrene-acrylic emulsion for canvas paints described in the above embodiment, the method comprises: combining polymerized monomers with functional The cross-linking agent is pre-mixed and inhaled into the metering drop device, which is the mixed monomer liquid A; the initiator is dissolved in water and poured into another liquid drop device, which is the initiator liquid B; the emulsifier is heated with water Dissolve, that is, the emulsifier aqueous phase liquid C liquid, take one third of the total amount of the mixed monomer liquid A, one third of the total amount of the initiator dripping liquid B liquid and all the emulsifier aqueous phase liquid C liquid, Put it into a steam-heated reactor equipped with a stirrer, reflux condenser, and metering dripping device, start stirring, control the sti...

Embodiment

[0037] The present invention will be described in detail below in conjunction with the examples and related diagrams. However, the invention is not limited to the specific examples given.

[0038] Mix the polymerized monomer and functional cross-linking agent in advance, inhale into the metering dripping device, which is the mixed monomer A liquid; dissolve the initiator in water and pour it into another dripping device, which is the initiator dripping liquid B ; The emulsifier is heated and dissolved with water, which is the emulsifier aqueous phase liquid C liquid, which takes 1 / 3 of the total amount of the mixed monomer A liquid, 1 / 3 of the total amount of the initiator dripping liquid B liquid and all the emulsifier The aqueous phase liquid C is put into a steam-heated reactor equipped with a stirrer, a reflux condenser, and a metering drip device, and the stirring is started (350 rpm), and the pre-emulsification is carried out for 40 minutes while the temperature is raise...

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Abstract

The invention provides a styrene-acrylic emulsion for canvas paint use and its preparation method. The styrene-acrylic emulsion comprises 45-55% of water, 40-48% of polymeric monomer monomers, 0.2-2% of a functional cross-linking agent, 2-10% of emulsifiers, 0.3-1% of initiators, and 1-6% of a plasticizer. Specifically, the styrene-acrylic emulsion is obtained through the steps of: at a temperature of 75-85DEG C, conducting polymerization to styrene and a (meth) acrylic monomer as well as a (meth) acrylate monomer, and subjecting a styrene-acrylic acid-acrylate copolymer to partial cross-linking. The copolymer has a hydrophilic carboxyl group and has a main molecular structure in linear distribution. The styrene-acrylic emulsion of the invention is mainly used as an adhesive for canvas paint preparation, and has the characteristics of excellent elasticity, strong adhesive force, good tensile strength, strong anti-oil permeability, good endurance, and aging resistance, etc.

Description

technical field [0001] The invention relates to a styrene-acrylic emulsion for canvas paint, in particular to a styrene-acrylic emulsion for use on cotton, linen, polyester-cotton or rayon canvas and a preparation method thereof. Background technique [0002] The emulsions used in the canvas paints made in China are all emulsions used in interior and exterior wall paints in the construction industry. The requirements for interior and exterior wall coatings are excellent scrub resistance, chalk resistance, water and alkali resistance, abrasion resistance, smoothness and smoothness. The requirements for canvas coatings are that the coating should not crack, fall off, pinholes or blisters. In addition to meeting the basic performance requirements of the coating surface, it must also meet the oil seepage resistance, stretch resistance, Performance requirements such as elasticity and weather resistance. [0003] Different occasions require different lotions. The emulsions used...

Claims

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Application Information

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IPC IPC(8): C08F212/08C08F220/28C08F220/18C08F220/06C08F2/24D06M15/263D06M101/06D06M101/32
Inventor 任莉马云龙张中领
Owner 宁波高新区康大美术新材料有限公司
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