Environment-friendly fireproof coating and preparation method thereof

A fire-resistant coating and environmental protection technology, applied in the direction of fire-resistant coatings, etc., can solve the problems of short fire extinguishing response time, difficulty in actively extinguishing fires, and the existence of fire extinguishing agents, and achieve the effects of improving storage stability, high practicability, and reducing residues

Active Publication Date: 2022-07-12
浙江铭诺新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, flame retardants can only prevent the spread of the fire area, but it is difficult to actively extinguish the fire in a short time, and the fire extinguishing agent with fire extinguishing effect is usually difficult to exist in the coating stably, so the development of fire extinguishing response time is short, and the fire extinguishing agent material and coating can coexist stably The fire retardant coating has important practical significance

Method used

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  • Environment-friendly fireproof coating and preparation method thereof
  • Environment-friendly fireproof coating and preparation method thereof
  • Environment-friendly fireproof coating and preparation method thereof

Examples

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Effect test

preparation example Construction

[0056] In the prior art, there is a Chinese invention patent with a publication number of CN114558268A, which discloses a perfluorohexanone microcapsule flame suppression medium and its preparation method, product and application, including by weight: 140 parts of core materials and 25-28 parts of shell materials The core material is perfluorohexanone; the shell material is formed by mixing the polymer capsule material and polyvinyl alcohol; the specific embodiment provides the explosion breaking temperature of the perfluorohexanone microcapsules obtained by the scheme If the temperature is 97°C, the effect of cooling and / or fire prevention cannot be exerted, and the early warning effect of fire is weak.

[0057] In the prior art, there is a Russian patent with an application number of RU2011125756, which discloses a microcapsule fire extinguishing agent and a preparation method thereof, a fire extinguishing composite material and a fire extinguishing coating, which can be blas...

Embodiment approach

[0065] Various embodiments are described where the fire suppressant microcapsules include:

[0066] A core material that vaporizes and absorbs heat when released by heat;

[0067] at least two layers of wall material containing polymeric material; and

[0068] The wall material can be broken when not lower than 75°C.

[0069] Various embodiments are described where the wall is not lower than 80°C, not lower than 85°C, not lower than 90°C, not lower than 95°C, not lower than 100°C, not lower than It can be broken at 120°C and not lower than 150°C.

[0070] Various embodiments are described where the fire extinguishing agent microcapsules are exposed to a temperature of not lower than 80°C, not lower than 85°C, not lower than 90°C, not lower than 95°C, not lower than 100°C , Not lower than 120 ℃, not lower than 150 ℃ environment after rupture and can vaporize and release fire extinguishing material to achieve the purpose of cooling and / or fire prevention and / or fire extinguis...

Embodiment 1

[0234] An environmental protection fireproof coating, the preparation method of which comprises the following steps.

[0235] 100 g of a gelatin aqueous solution with a mass fraction of 10% was prepared as a wall material solution, 0.002 g of nano-silica powder and 0.01 g of nano-titanium dioxide powder were added, and the mixture was stirred at 60° C. to mix and disperse. Add 80 g of perfluorohexanone, stir at 450 r / min for 40 min at 25 °C, slowly add 3 mL of glutaraldehyde solution with a mass fraction of 10%, stir and crosslink for 30 min, filter, wash and separate to obtain about 80 g of preliminarily solidified microcapsules.

[0236] Add 80g of preliminarily solidified microcapsules to 60g of melamine-formaldehyde prepolymer solution, stir for 1 hour, filter, wash, and dry at low temperature to obtain fire extinguishing agent microcapsule powder. The microscopic image is as follows: figure 1 As shown, the microscopic image after high temperature rupture is as follows ...

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Abstract

The invention mainly relates to the technical field of fireproof coatings, in particular to an environment-friendly fireproof coating and a preparation method thereof.The environment-friendly fireproof coating comprises a coating base material and a fire extinguishing agent microcapsule, and the fire extinguishing agent microcapsule is broken after being exposed to the temperature not lower than 75 DEG C and / or an open fire environment and can be vaporized to release a fire extinguishing material to achieve the purposes of cooling and / or fire prevention and / or fire extinguishment. In order to break through the current situation that the traditional fireproof, fire-extinguishing and flame-retardant coating can only prevent spreading of an ignition area but is difficult to sensitively and actively extinguish fire in a short time, the invention provides a plurality of coatings and / or coating films which can actively cool, prevent fire and extinguish fire, have short response time, stably exist fire-extinguishing components in the coatings and / or coating films and can be repeatedly triggered to extinguish fire.

Description

technical field [0001] The invention mainly relates to the technical field of fireproof coatings, in particular to an environment-friendly fireproof coating and a preparation method thereof. Background technique [0002] Fire retardant coating refers to a type of coating that is coated on the surface of objects to prevent fire, prevent the spread of fire or isolate the source of fire, prolong the fire time of the substrate or increase the thermal insulation performance to delay the time of structural damage, including steel structure fire retardant coatings, decorative coatings. Surface type fire retardant coating, cable fire retardant coating, prestressed concrete floor fire retardant coating, etc. It is usually prepared with flame retardants, additives, etc. in the coating base material, and plays a role in fire protection through the incombustibility, low thermal conductivity or heat absorption of the flame retardant. For example, the Chinese invention patent with the pu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D5/18
CPCC09D5/18C08K7/26C08K2201/011C08K2003/2241C08K2003/2206C08K2003/2296C08K9/10C08K5/07Y02E60/10
Inventor 茆涵陈虹马荷琴
Owner 浙江铭诺新材料科技有限公司
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