Preparation method of fireproof paint

A fire-resistant coating, stirring and mixing technology, which is applied in the direction of fire-resistant coatings, epoxy resin coatings, polyurea/polyurethane coatings, etc., can solve the problems of fire-resistant coatings such as durability, poor weather resistance, and poor bonding strength, and achieve good adhesion , good water resistance, and the effect of slowing down the attack

Inactive Publication Date: 2018-12-07
吕莉
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Technical problem to be solved by the present invention: Aiming at the problems of poor durability, weather resistance and poor bonding strength of current fireproof coatings, a preparation method of fireproof coatings is provided

Method used

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  • Preparation method of fireproof paint

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Effect test

Embodiment approach

[0023] Flame retardant auxiliary agent: in parts by mass, take 10-15 parts of expandable graphite, 4-8 parts of sepiolite, 5-8 parts of titanium dioxide, and 1-3 parts of barium sulfate, grind and pulverize for 20-30 minutes, pass 200-mesh sieve to collect the sieved particles to obtain the flame retardant auxiliary agent.

[0024] Silicone acrylic emulsion: Take OP-10 according to the mass ratio of 1~3:2~4:9~12, add sodium dodecylsulfonate and distilled water and mix to obtain a mixed emulsion, and take 4~8 parts by mass N-butyl acrylate, 8~12 parts of methyl methacrylate, 4~8 parts of styrene, 10~14 parts of methacrylic acid, 6~12 parts of vinyltriethoxysilane, 8~13 parts of octamethylcyclo Tetrasiloxane, 3~7 parts of mixed emulsion were mixed, stirred and mixed for 40~50 minutes to obtain a stirred mixture, and the stirred mixture was ammonium persulfate and sodium bicarbonate with a mass ratio of 90~100:1~3:2~5, Stir and mix at 75-80°C for 3-5 hours, adjust the pH to 7-8,...

Embodiment 1

[0034] Flame retardant auxiliary agent: in parts by mass, mix 10 parts of expandable graphite, 4 parts of sepiolite, 5 parts of titanium dioxide, and 1 part of barium sulfate, grind and pulverize for 20 minutes, pass through a 200-mesh sieve, and collect the sieved particles, namely Flame retardant auxiliaries.

[0035] Silicone acrylic emulsion: take OP-10 and mix it with sodium dodecylsulfonate and distilled water at a mass ratio of 1:2:9 to obtain a mixed emulsion. In terms of parts by mass, take 4 parts of n-butyl acrylate and 8 parts of formazan Methyl acrylate, 4 parts of styrene, 10 parts of methacrylic acid, 6 parts of vinyltriethoxysilane, 8 parts of octamethylcyclotetrasiloxane, and 3 parts of mixed emulsion were mixed and stirred for 40 minutes to obtain For the mixture, take ammonium persulfate and sodium bicarbonate in a mass ratio of 90:1:2, stir and mix at 75°C for 3 hours, adjust the pH to 7, and cool to room temperature to obtain a silicon-acrylic emulsion.

...

Embodiment 2

[0045] Flame retardant auxiliary agent: in parts by mass, mix 15 parts of expandable graphite, 8 parts of sepiolite, 8 parts of titanium dioxide, and 3 parts of barium sulfate, grind and pulverize for 30 minutes, pass through a 200-mesh sieve, and collect the sieved particles, namely Flame retardant auxiliaries.

[0046] Silicone acrylic emulsion: Take OP-10 and mix it with sodium dodecylsulfonate and distilled water at a mass ratio of 3:4:12 to obtain a mixed emulsion. In terms of parts by mass, take 8 parts of n-butyl acrylate and 12 parts of formazan Methyl acrylate, 8 parts of styrene, 14 parts of methacrylic acid, 12 parts of vinyltriethoxysilane, 13 parts of octamethylcyclotetrasiloxane, and 7 parts of mixed emulsion were mixed and stirred for 50 minutes to obtain For the mixture, take ammonium persulfate and sodium bicarbonate in a mass ratio of 100:3:5, stir and mix at 80°C for 5 hours, adjust the pH to 8, and cool to room temperature to obtain a silicon-acrylic emulsi...

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Abstract

The invention discloses a preparation method of fireproof paint, and belongs to the field of paint. According to the method, a coating material is synthesized by 4,4'-diphenylmethane diisocyanate, sorbitol, polyethylene glycol 4000 and the like and is used to coat ammonium polyphosphate to form a flame retardant active substance of a core-shell structure. The ammonium polyphosphate has a large molecular polarity, is prone to being attacked by water molecules, and is prone to migrating to the surface of the material in high temperature and high humidity environment, resulting in a decrease in flame retardant effect. After the coating, the aggressiveness of the ammonium polyphosphate by the water molecules is slowed down, and so the ammonium polyphosphate can maintain the flame retardant activity in the high temperature and high humidity environment. The preparation method of the fireproof paint solves the problems of poor durability, weatherability and bonding strength of conventional fireproof paint.

Description

technical field [0001] The invention belongs to the field of coatings, and in particular relates to a preparation method of fireproof coatings. Background technique [0002] Fireproof coating is a special coating used on the surface of flammable substrates, which can reduce the flammability of the surface of the coated material, retard the rapid spread of fire, and improve the fire resistance limit of the coated material. It is applied to the surface of flammable substrates to change the combustion characteristics of the material surface and retard the rapid spread of fire; or applied to building components to improve the fire resistance limit of components, called fire retardant coatings. [0003] In terms of the thickness of the coating layer, fire retardant coatings are mainly divided into three categories: ultra-thin type, thin type, and thick type. Among them, thick fireproof coatings are the most common, and the thickness is generally between 8 and 50mm, so that the f...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D163/00C09D133/04C09D5/18C09D175/04C09D7/61
CPCC08K2003/2241C08K2003/3045C08K2003/323C08K2201/011C08L2201/02C08L2201/08C08L2205/03C09D5/18C09D7/61C09D7/70C09D163/00C08L43/04C08L75/08C08K13/04C08K3/32C08K7/24C08K3/34C08K3/22C08K3/30C08K3/36
Inventor 吕莉路芸胡晓玉
Owner 吕莉
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