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Biomass flame retardant, water-based flame-retardant coating as well as preparation method and application of water-based flame-retardant coating

A technology for flame retardant coatings and flame retardants, applied in the field of flame retardant materials, can solve the problems that the use requirements of flame retardant coatings cannot be met, and the efficiency of bio-based flame retardants is low, achieving good flame retardant protection, convenient processing, and adding small amount of effect

Active Publication Date: 2021-10-12
INST OF PETROCHEM HEILONGJIANG ACADEMY OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problem that the efficiency of existing bio-based flame retardants is low and cannot meet the requirements for the use of flame-retardant coatings, the present invention provides a biomass flame retardant, water-based flame-retardant coatings and their preparation methods and applications

Method used

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  • Biomass flame retardant, water-based flame-retardant coating as well as preparation method and application of water-based flame-retardant coating
  • Biomass flame retardant, water-based flame-retardant coating as well as preparation method and application of water-based flame-retardant coating
  • Biomass flame retardant, water-based flame-retardant coating as well as preparation method and application of water-based flame-retardant coating

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Effect test

Embodiment 1

[0025] The present embodiment provides a kind of biomass flame retardant, and main component comprises chitosan, melamine formaldehyde resin coating ammonium polyphosphate MFAPP and flame retardant synergist micron organic montmorillonite OMMT; Wherein chitosan and MFAPP The weight ratio is 1:1, and the weight of the micron organic montmorillonite accounts for 4% of the total weight of the biomass flame retardant.

[0026] In this embodiment, the degree of deacetylation of chitosan is greater than 95%, and there is no molecular weight requirement. Micron organic montmorillonite particle size requires D50<40μm.

[0027] The preparation method of MFAPP in the present embodiment comprises the following steps:

[0028] Step 1, preparation of melamine formaldehyde prepolymer:

[0029] Mix melamine and formaldehyde at a mass ratio of 1:3, adjust the pH of the system to 7 with sodium hydroxide, and then react in a constant temperature water bath at 65°C for 3 hours to obtain a mela...

Embodiment 2

[0034] The present embodiment provides a kind of biomass flame retardant, and main component comprises chitosan, melamine formaldehyde resin coating ammonium polyphosphate MFAPP and flame retardant synergist micron organic montmorillonite OMMT; Wherein chitosan and MFAPP The weight ratio is 1:2, and the weight of the micron organic montmorillonite accounts for 6% of the total weight of the biomass flame retardant.

[0035] In this embodiment, the degree of deacetylation of chitosan is greater than 95%, and there is no molecular weight requirement. Micron organic montmorillonite particle size requires D50<40μm.

[0036] The preparation method of MFAPP in the present embodiment comprises the following steps:

[0037] Step 1, preparation of melamine formaldehyde prepolymer:

[0038] Mix melamine and formaldehyde at a mass ratio of 1:3, adjust the pH of the system to 8 with sodium hydroxide, and then react in a constant temperature water bath at 70°C for 3 hours to obtain a mela...

Embodiment 3

[0043] The present embodiment provides a kind of biomass flame retardant, and main component comprises chitosan, melamine formaldehyde resin coating ammonium polyphosphate MFAPP and flame retardant synergist micron organic montmorillonite OMMT; Wherein chitosan and MFAPP The weight ratio is 1:3, and the weight of the micron organic montmorillonite accounts for 8% of the total weight of the biomass flame retardant.

[0044] In this embodiment, the degree of deacetylation of chitosan is greater than 95%, and there is no molecular weight requirement. Micron organic montmorillonite particle size requires D50<40μm.

[0045] The preparation method of MFAPP in the present embodiment comprises the following steps:

[0046] Step 1, preparation of melamine formaldehyde prepolymer:

[0047] Mix melamine and formaldehyde at a mass ratio of 1:3, adjust the pH of the system to 9 with sodium hydroxide, and then react in a constant temperature water bath at 75°C for 3 hours to obtain a mela...

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Abstract

The invention relates to a biomass flame retardant, a water-based flame-retardant coating as well as a preparation method and application of the water-based flame-retardant coating, and belongs to the technical field of flame-retardant materials. In order to solve the problems that an existing bio-based flame retardant is low in efficiency and cannot meet the use requirement of a flame-retardant coating, the invention provides a biomass flame retardant which mainly comprises chitosan, melamine formaldehyde resin coated ammonium polyphosphate and a flame-retardant synergist, the weight ratio of the chitosan to the melamine formaldehyde resin coated ammonium polyphosphate is 1: 1-1: 6, and the weight of the flame retardant synergist accounts for 4-8% of the total weight of the biomass flame retardant. According to the biomass flame retardant, the MFAPP, the chitosan and the flame retardant synergist are compounded to obtain the flame retardant with the expansion property integrating a carbon source, an acid source and a gas source, and the biomass flame retardant has the advantages of being small in addition amount, efficient, low in toxicity and the like. The water-based flame retardant coating is prepared by adding the water-based flame retardant into water-based epoxy resin, the coating is applied to wood flame retardance, the flame retardant coating expands rapidly after meeting fire, and efficient flame retardance can be achieved.

Description

technical field [0001] The invention belongs to the technical field of flame retardant materials, and in particular relates to a biomass flame retardant, a water-based flame retardant coating and a preparation method and application thereof. Background technique [0002] Flame retardant coating is a special coating that covers the surface of combustibles, effectively protects combustibles, reduces fire risk and fire burning speed. Flame retardant coatings can enable people to have enough time to escape and organize rescue when a fire occurs, avoiding greater economic and property losses. [0003] Although the flame retardants used in traditional flame retardant coatings, such as halogen flame retardants, have good flame retardancy, they will release a large amount of toxic smoke and gas when they are flame retardant, thus bringing harm to the ecological environment and human health. Great hidden danger. The development of green, non-toxic and renewable flame retardants and...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D5/18C09D163/02B27K3/12B27K3/52
CPCC09D5/185C09D163/00B27K3/12B27K3/52C08K2003/323C08K2003/387C08K2201/011C08L2201/02C08L2201/08B27K2240/30C08L5/08C08K9/10C08K3/32C08K3/346C08K3/36C08K3/2279C08K3/38
Inventor 李胜
Owner INST OF PETROCHEM HEILONGJIANG ACADEMY OF SCI
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