Intumescent flame retardant compounded two-dimensional nanosheet polyurethane flame-retardant paint as well as preparation method and application thereof

An intumescent flame retardant, two-dimensional nanotechnology, applied in the field of fire retardant, can solve the problems of poor adhesion and fire resistance of fire retardant coatings, unable to meet the fire protection requirements of fire pipelines of electrical equipment, etc., and achieve excellent fire resistance and stable storage. , the effect of improving the service life

Pending Publication Date: 2022-07-01
ELECTRIC POWER RES INST OF STATE GRID ANHUI ELECTRIC POWER +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0012] The technical problem to be solved by the present invention is that the ordinary fire-proof coatings in the prior art have poor adhesion and fire-proof ability, and cannot meet the fire-proof requirements of fire-fighting pipelines for power equipment. An expansion-type flame retardant compounded with two-dimensional nano-sheet polyurethane flame-retardant paint is provided. Its preparation method and application

Method used

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  • Intumescent flame retardant compounded two-dimensional nanosheet polyurethane flame-retardant paint as well as preparation method and application thereof
  • Intumescent flame retardant compounded two-dimensional nanosheet polyurethane flame-retardant paint as well as preparation method and application thereof
  • Intumescent flame retardant compounded two-dimensional nanosheet polyurethane flame-retardant paint as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0081] The formula of the intumescent flame retardant compounded with the two-dimensional nanosheet polyurethane flame retardant paint is shown in Table 2.

[0082] Table 2 Formula of intumescent flame retardant compound two-dimensional nanosheet polyurethane flame retardant paint in Example 1

[0083]

[0084]

[0085] The preparation method of intumescent flame retardant compounding two-dimensional nano-sheet polyurethane flame retardant paint specifically includes the following steps:

[0086] (1) Component A is stirred and mixed for the first time to obtain the first mixed material, specifically, at 25° C., add polyurethane resin and diluent to the paint mixing tank, start stirring, and the speed of stirring is 500rpm, until A vortex appears in the center of the liquid surface;

[0087] (2) stirring and mixing component B and the first mixed material for the second time to obtain the second mixed material, specifically, adding a dispersant, a wetting agent, a defoam...

Embodiment 2

[0091] The formula of the intumescent flame retardant compounded with the two-dimensional nanosheet polyurethane flame retardant paint is shown in Table 3.

[0092] Table 3 Formula of intumescent flame retardant compound two-dimensional nanosheet polyurethane flame retardant paint in Example 2

[0093]

[0094] The preparation method of intumescent flame retardant compounding two-dimensional nano-sheet polyurethane flame retardant paint specifically includes the following steps:

[0095] (1) Component A is stirred and mixed for the first time to obtain the first mixed material, specifically, at 30° C., add polyurethane resin and diluent to the paint mixing tank, start stirring, and the stirring speed is 400rpm, until A vortex appears in the center of the liquid surface;

[0096] (2) stirring and mixing component B and the first mixed material for the second time to obtain the second mixed material, specifically, adding a dispersant, a wetting agent, a defoaming agent, and ...

Embodiment 3

[0100] The formula of the intumescent flame retardant compounded with the two-dimensional nanosheet polyurethane flame retardant paint is shown in Table 4.

[0101] Table 4 Formula of intumescent flame retardant compound two-dimensional nanosheet polyurethane flame retardant paint in Example 2

[0102]

[0103]

[0104] The preparation method of the intumescent flame retardant compounded with the two-dimensional nanosheet polyurethane flame retardant paint is the same as the preparation method in Example 1, and the intumescent flame retardant compounded with the two-dimensional nanosheet polyurethane flame retardant paint PT3 is obtained.

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Abstract

The invention discloses an intumescent flame retardant compounded two-dimensional nanosheet polyurethane flame-retardant paint, and relates to the technical field of fire prevention and flame retardance. The flame-retardant polyurethane composite material is prepared from the following raw materials in parts by weight: 100 parts of polyurethane resin, 30-80 parts of a flame retardant, 20-50 parts of a charring agent, 20-60 parts of a foaming agent, 0.1-4 parts of a wetting agent, 0.5-4 parts of a defoaming agent, 0.5-5 parts of a dispersing agent, 0.5-8 parts of an anti-settling agent, 1-60 parts of pigment and filler, 0.01-3 parts of a flatting agent, 10-100 parts of a diluent and 10-100 parts of a curing agent. A flame-retardant heat-insulating layer can be formed on the surface of a fire-fighting pipeline of power equipment at a time, an intumescent flame retardant can form an intumescent carbon layer during combustion, the intumescent carbon layer and zirconium phosphate nanosheets are synergistically flame-retardant, and a compact and dense carbon layer is formed on the surface of carbon residues, so that the flame-retardant property of the material is further improved, and the material has excellent fire-proof capability; therefore, deformation of the fire-fighting pipeline of the power equipment is delayed, improvement of fire rescue efficiency is facilitated, and great economic benefits and social benefits are achieved.

Description

technical field [0001] The invention relates to the technical field of fire and flame retardant, in particular to an intumescent flame retardant compounded with two-dimensional nano-sheet polyurethane flame retardant paint and a preparation method and application thereof. Background technique [0002] The oil storage capacity of the UHV converter transformer is about 130t~200t. The relevant accident cases show that the converter transformer fire is generally a deflagration fire, which has the characteristics of rapid fire development, high oil temperature and high fire intensity. Experimental Research on Anti-dry Burning Performance of Transformer Fire-fighting Pipeline" (Zhang Jiaqing, Guo Yi, Li Changhai, Zhou Yifu, Huang Yong. Experimental Research on Anti-dry-burning Performance of UHV Converter Transformer Fire-fighting Pipeline [J / OL]. High Voltage Electrical Appliances: 1-7 [2021] -12-20].http: / / kns.cnki.net / kcms / detail / 61.1127.TM.0210712.1605.002.html.) The fire-exti...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D175/14C09D175/04C09D5/18
CPCC09D175/14C09D175/04C09D5/185C08L2201/02C08L2203/18C08K2003/323C08K2003/321C08K2201/011C08L75/14C08K3/32C08L75/04
Inventor 何灵欣张佳庆黄勇宋胜利周亦夫刘超吴畏罗沙付贤玲过羿李永熙黄玉彪尚峰举孙韬
Owner ELECTRIC POWER RES INST OF STATE GRID ANHUI ELECTRIC POWER
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