Intumescent flame retardant coating material and preparation method thereof

A flame-retardant coating and intumescent technology, applied in the field of intumescent flame-retardant coating and its preparation, can solve the problems of being easily damaged by flames, insufficient material strength, and affecting the strength of the coating film, and achieve improved surface energy, high mechanical strength, The effect of improving binding force

Inactive Publication Date: 2019-02-01
合肥永泰新型建材有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] With the continuous improvement of people's living standards, people's awareness of fire protection continues to increase, and the development of the coating industry is also accelerating. At present, there are some shortcomings in the expansion coatings on the market: the carbon layer structure formed after the existing expansion coatings are burned, There are a large number of uniform and loose porous structures on the inner surface of the carbon layer, which leads to insufficient strength of the material and is easily damaged by flames, and also makes the coating film flammable, making it difficult to protect the material
However, adding materials such as silicon dioxide as fillers in this invention will inevitably form a large number of pores in the coating, which will affect the strength of the coating film, which is easy to crack and has poor aging resistance.

Method used

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  • Intumescent flame retardant coating material and preparation method thereof
  • Intumescent flame retardant coating material and preparation method thereof

Examples

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Effect test

Embodiment 1

[0028] This example relates to an intumescent flame retardant coating, which includes the following raw materials in parts by weight: 50 parts of modified silicone acrylic emulsion, 10 parts of polyethyl butyl acrylate, 8 parts of ammonium polyphosphate, 6 parts of sodium carbonate, modified nano 30 parts of silicon dioxide, 3 parts of polyvinylpyrrolidone, 5 parts of trimethylolpropane, 2 parts of sodium hydroxymethyl cellulose, 2 parts of dispersant, 4 parts of charcoal forming agent;

[0029] The nano silicon dioxide is formed by mixing cristobalite and tridymite at a mass ratio of 3:1.

[0030] Wherein, the preparation method of the modified silicon-acrylic emulsion is: adding silicon-acrylic emulsion into the reactor, adding 6% sodium dodecylbenzene sulfonate and 3% potassium persulfate solution to the silicon-acrylic emulsion by weight , insulated and reacted at 50°C for 2 hours, then dropwise adding a pH buffering agent therein, adjusting the pH of the solution in the r...

Embodiment 2

[0040] This example relates to an intumescent flame retardant coating, which includes the following raw materials in parts by weight: 60 parts of modified silicone acrylic emulsion, 20 parts of polyethyl butyl acrylate, 12 parts of ammonium polyphosphate, 16 parts of sodium carbonate, modified nano 40 parts of silicon dioxide, 7 parts of polyvinylpyrrolidone, 10 parts of trimethylolpropane, 10 parts of sodium hydroxymethyl cellulose, 6 parts of dispersant, 8 parts of charcoal forming agent;

[0041] The nano silicon dioxide is formed by mixing cristobalite and tridymite at a mass ratio of 3:1.

[0042] Wherein, the preparation method of the modified silicon-acrylic emulsion is: adding silicon-acrylic emulsion in the reactor, adding 10% sodium dodecylbenzenesulfonate and 5% potassium persulfate solution of silicon-acrylic emulsion to it by weight , insulated and reacted at 60°C for 4 hours, then dropwise adding a pH buffering agent therein, adjusting the pH of the solution in t...

Embodiment 3

[0052] This example relates to an intumescent flame retardant coating, which includes the following raw materials in parts by weight: 52 parts of modified silicone acrylic emulsion, 12 parts of polyethyl butyl acrylate, 9 parts of ammonium polyphosphate, 8 parts of sodium carbonate, modified nano 32 parts of silicon dioxide, 4 parts of polyvinylpyrrolidone, 7 parts of trimethylolpropane, 4 parts of sodium hydroxymethyl cellulose, 3 parts of dispersant, 5 parts of charcoal agent;

[0053] The nano silicon dioxide is formed by mixing cristobalite and tridymite at a mass ratio of 3:1.

[0054] Wherein, the preparation method of the modified silicon-acrylic emulsion is: adding silicon-acrylic emulsion into the reactor, adding 6% sodium dodecylbenzene sulfonate and 3% potassium persulfate solution to the silicon-acrylic emulsion by weight , insulated and reacted at 50°C for 2 hours, then dropwise adding a pH buffering agent therein, adjusting the pH of the solution in the reactor t...

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Abstract

The invention discloses an intumescent flame retardant coating material and a preparation method thereof, and relates to the technical field of flame retardant coating materials, wherein the intumescent flame retardant coating material comprises the following raw materials by weight: 50-60 parts of modified silicone-acrylic emulsion, 10-20 parts of poly ethyl butyl acrylate, 8-12 parts of ammoniumpolyphosphate, 6-16 parts of sodium carbonate, 30-40 parts of modified nanometer silica, 3-7 parts of polyvinylpyrrolidone, 5-10 parts of trimethylolpropane, 2-10 parts of sodium hydroxymethyl cellulose, 2-6 parts of a dispersing agent, and 4-8 parts of a carbon forming agent. The preparation method comprises: dispersing, grinding and mixing. The intumescent flame retardant coating material of the present invention has advantages of excellent fire retardant property and high mechanical strength.

Description

technical field [0001] The invention belongs to the technical field of flame-retardant coatings, and in particular relates to an intumescent flame-retardant coating and a preparation method thereof. Background technique [0002] With the continuous improvement of people's living standards, people's awareness of fire protection continues to increase, and the development of the coating industry is also accelerating. At present, there are some shortcomings in the expansion coatings on the market: the carbon layer structure formed after the existing expansion coatings are burned, There are a large number of uniform and loose porous structures on the inner surface of the carbon layer, which leads to insufficient strength of the material and is easily damaged by flames, and also makes the coating film flammable, making it difficult to protect the material. [0003] The Chinese invention patent application with the publication number CN106800839A discloses a water-based paint with ...

Claims

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Application Information

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IPC IPC(8): C09D133/04C09D133/06C09D5/18C09D7/62C09D7/65C09D7/63
CPCC09D143/04C08K2003/262C08K2003/323C08L2201/02C08L2205/035C09D5/185C09D7/62C09D7/63C09D7/65C08L33/06C08L39/06C08L1/284C08K13/02C08K3/32C08K3/26C08K9/06C08K3/36
Inventor 伍志远
Owner 合肥永泰新型建材有限公司
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