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Water-based intumescent flame-retardant paint based on modified boron nitride and preparation method thereof

A technology of fire retardant coating and boron nitride, applied in the direction of fire retardant coating, coating, etc., can solve the problem that the performance of water-based intumescent fire retardant coating is not good enough, and achieve excellent antifouling performance, good compatibility, high efficiency fire resistance and flame retardant performance Effect

Inactive Publication Date: 2019-03-01
WUHAN INSTITUTE OF TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to solve the above-mentioned deficiencies existing in the existing boron nitride modification method and the problems that the performance of the existing water-based intumescent fireproof coating is not good enough, and provide a new boron nitride stripping modification method and apply it to water-based intumescent fire retardant coating

Method used

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  • Water-based intumescent flame-retardant paint based on modified boron nitride and preparation method thereof

Examples

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Effect test

Embodiment 1

[0031] A water-based intumescent fireproof coating based on modified boron nitride, its composition is as follows (mass percentage): 2% of modified boron nitride, 36% of ammonium polyphosphate, 17% of pentaerythritol, 12% of melamine, water-based styrene-acrylic core-shell Emulsion 20%, hydroxyethyl cellulose 0.5%, dispersant 0.5%, defoamer 0.5%, n-octanol 0.5%, water 11%.

[0032] The preparation method of the water-based intumescent fireproof coating is as follows: prepare materials according to the above-mentioned ratio; mix and grind the weighed ammonium polyphosphate, pentaerythritol, melamine, and modified boron nitride into powder, then add water and continue to grind to make it evenly mixed , then add hydroxyethyl cellulose, defoamer and dispersant to continue grinding, and finally add water-based styrene-acrylic core-shell emulsion and n-octanol, grind thoroughly for the third time and mix well.

Embodiment 2

[0034] A water-based intumescent fireproof coating based on modified boron nitride, its composition is as follows (mass percentage): 6% of modified boron nitride, 34% of ammonium polyphosphate, 13% of pentaerythritol, 12% of melamine, water-based styrene-acrylic core-shell Emulsion 20%, hydroxyethyl cellulose 0.5%, dispersant 0.5%, defoamer 0.5%, n-octanol 0.5%, water 13%. The preparation method of the water-based intumescent fireproof coating is the same as that of Example 1.

Embodiment 3

[0036] A water-based intumescent fireproof coating based on modified boron nitride, its composition is as follows (mass percentage): 10% of modified boron nitride, 30% of ammonium polyphosphate, 12% of pentaerythritol, 11% of melamine, water-based styrene-acrylic core-shell Emulsion 20%, hydroxyethyl cellulose 0.5%, dispersant 0.5%, defoamer 0.5%, n-octanol 0.5%, water 15%. The preparation method of the water-based intumescent fireproof coating is the same as that of Example 1.

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Abstract

The invention relates to water-based intumescent flame-retardant paint based on modified boron nitride and a preparation method thereof. Firstly, by means of isopropanol liquid-phase mechanical ball milling and N,N-dimethylformamide assistant ultrasound, hexagonal boron nitride is exfoliated, and then the exfoliated boron nitride, water-based styrene-acrylic core-shell emulsion, ammonium polyphosphate, pentaerythritol, melamine, hydroxyethyl cellulose, a defoaming agent, a dispersion agent and water are prepared into the water-based intumescent flame-retardant paint according to a certain ratio. An intumescent carbon layer formed by the flame-retardant paint at high temperatures is compact and firm, the water-based intumescent flame-retardant paint based on the modified boron nitride has efficient flame-retardant performance, the preparation method thereof is simple, the film-forming performance is excellent, and water-based environment-friendliness is achieved.

Description

technical field [0001] The invention relates to the technical field of coatings and fireproof materials, in particular to a water-based intumescent fireproof coating based on modified boron nitride and a preparation method thereof. Background technique [0002] Water-based intumescent fire-resistant coatings are widely used in fire protection in various industries due to their advantages of thin coating thickness, convenient construction, good decoration, and water-based environmental protection. Common intumescent fireproof coatings will release a lot of heat during thermal expansion and foaming, which seriously endangers people's life and health. As a member of two-dimensional nanomaterials, hexagonal boron nitride is a honeycomb layered material composed of boron atoms and nitrogen atoms in sp2 hybridization. Due to the polar boron-nitrogen bond between layers, hexagonal boron nitride (hBN) has the advantages of excellent high temperature resistance, thermal stability, h...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D125/14C09D5/18C09D7/63
CPCC08K2003/323C08K2003/385C08L2201/02C08L2201/22C09D5/185C09D7/63C09D125/14C08L1/284C08K13/06C08K9/00C08K3/38C08K3/32C08K5/053C08K5/34922
Inventor 刘治田刘诗胡清华王成张旗
Owner WUHAN INSTITUTE OF TECHNOLOGY
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