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Self-flame-resisting type acrylic emulsion and preparation method thereof

An acrylic emulsion, flame retardant technology, used in coatings, fire retardant coatings, etc., can solve the problems of weakened flame retardant performance and uneven distribution, and achieve the effect of not easy to dissociate

Active Publication Date: 2016-09-28
UNION FOSHAN CHEM +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, although the brominated epoxy resin has good bonding performance, there is no chemical bond between the brominated epoxy resin and the acrylic resin, and the brominated epoxy resin is simply dispersed in the coating, and there are shortcomings such as uneven distribution, and it can still be released after film formation. acrylic surface, the flame resistance will decrease over time

Method used

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  • Self-flame-resisting type acrylic emulsion and preparation method thereof
  • Self-flame-resisting type acrylic emulsion and preparation method thereof
  • Self-flame-resisting type acrylic emulsion and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] a. Add 30.0 parts of deionized water, 2.0 parts of sodium acrylamido isopropyl sulfonate, methyl methacrylate and 10.0 parts of butyl acrylate mixed monomer, 4.0 parts of 2,4-dibromostyrene, 2.0 parts of fluorostyrene, 1.7 parts of acrylic acid, 2.0 parts of β-hydroxyethyl acrylate, 1.05 parts of sodium bicarbonate solution; ~1300r / min high-speed stirring to emulsify to obtain milky white pre-emulsified mixed monomer emulsion;

[0023] b. When the temperature rises to 75°C, reduce the speed to 800r / min, add dropwise an aqueous solution containing 0.05 parts of ammonium persulfate, and when the temperature rises to 80°C, the reaction is initiated and blue light appears; (Note: The initiator is prepared in advance for 5 % aqueous solution)

[0024] c. When there is no reflux in the reaction, add 35.0 parts of the remaining mixed monomers and ammonium persulfate solution (containing 0.2 parts of ammonium persulfate) dropwise at the same time, keep the temperature at 81-83...

Embodiment 2

[0026] a. Add 22.0 parts of deionized water, 3.0 parts of sodium dodecylbenzenesulfonate, methyl methacrylate and acrylic acid into a four-port reaction vessel equipped with a speed-adjusting stirrer, a reflux tube, a dropping funnel and a thermometer 10.0 parts of ethyl ester mixed monomer, 5.0 parts of 2,4-difluorostyrene, 1.8 parts of acrylic acid, 2.0 parts of β-hydroxyethyl acrylate monomer, 0.18 parts of 30% sodium hydroxide; Emulsify under high-speed stirring to obtain a milky white pre-emulsified mixed monomer emulsion;

[0027] b. When the temperature rises to 75°C, reduce the speed to 800r / min, add dropwise an aqueous solution containing 0.06 parts of potassium persulfate, and when the temperature rises to 80°C, the reaction is initiated, and blue light appears; (Note: The initiator is prepared in advance for 5 % aqueous solution)

[0028] c. When there is no reflux in the reaction, add 26.0 parts of the remaining mixed monomer and the remaining potassium persulfate...

Embodiment 3

[0030] a. Add 28.0 parts of deionized water, 1.5 parts of sodium acrylamido isopropyl sulfonate, methyl methacrylate and 20.0 parts of butyl methacrylate mixed monomer, 10.0 parts of 2,4,6-tribromostyrene, 1.0 parts of acrylic acid, 1.0 parts of β-hydroxypropyl methacrylate, 1.08 parts of 30% ammonia water; Emulsify under high-speed stirring at 1300r / min to obtain a milky white pre-emulsified mixed monomer emulsion;

[0031] b. When the temperature rises to 75°C, reduce the speed to 800r / min, add dropwise an aqueous solution containing 0.1 part of sodium persulfate, and when the temperature rises to 80°C, the reaction is initiated, and blue light appears; (Note: The initiator is prepared in advance for 5 % aqueous solution)

[0032] c. When there is no reflux in the reaction, add 26.0 parts of the remaining mixed monomers and the remaining sodium persulfate solution (containing 0.4 parts of sodium persulfate) dropwise at the same time, keep the temperature at 81-83°C, and dro...

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Abstract

The invention relates to a self-flame-resisting type acrylic emulsion. The self-flame-resisting type acrylic emulsion is characterized in that according to a self-flame-resisting type modified styrene-acrylic emulsion, reaction type halogen-containing flame-resisting type vinyl monomer and acrylic esters monomer can be in emulsion copolymerization, a flame-resisting group is fixed on a resin molecular structure in a chemical bond mode and cannot resolve or drop, synthesized acrylic emulsion has self-flame-resisting property, and when coating is prepared, another flame retardant is not required to be added, and long-lasting flame-resisting property can be realized. The invention further provides a preparation method of the self-flame-resisting type acrylic emulsion. The prepared self-flame-resisting type acrylic emulsion has good adhesion, water tolerance and durability, and a prepared film has water tolerance, alkali resistance, scrubbing resistance and long-lasting self-flame-resisting property, and the self-flame-resisting type acrylic emulsion is widely used for flame-resisting coating of indoor and outdoor woodware, steel structures and buildings, not only has a decorating function, but also has a protecting function.

Description

technical field [0001] The invention relates to a method for preparing a water-based acrylic emulsion, in particular to a method for preparing a self-flame-retardant acrylic emulsion, which belongs to the technical field of water-based synthetic resin. technical background [0002] With the research and development of acrylic copolymers and the increasing requirements for environmental protection, acrylic emulsions are widely used in coating film-forming substrates, textile printing and dyeing binders, and are used in daily chemicals, chemical power sources, functional films, medical polymers, Nanomaterials, water treatment, etc. [0003] Chinese Patent No. CN201310621088.4 discloses an acrylic emulsion antirust coating, which uses water as a solvent, is non-toxic, has little environmental pollution, can be widely produced and continuously replaces existing materials, is convenient for storage, transportation and construction, and is safe and reliable. [0004] However, aft...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F220/18C08F220/14C08F212/14C08F220/06C08F220/28C08F2/26C09D133/12C09D133/08C09D133/10C09D5/18
CPCC08F2/26C08F220/14C08F220/18C08F220/1804C09D5/18C09D133/08C09D133/10C09D133/12C08F212/14C08F220/281C08F220/06
Inventor 谢义鹏许钧强康伦国姚东生孙小光周利军
Owner UNION FOSHAN CHEM
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