Flame-retardant coating and preparation method and application thereof

A technology of coating and intumescent flame retardant, which is applied in the field of flame retardant coating and its preparation, can solve the problems of affecting the flame retardant effect, difficulty in obtaining dispersion of nanoparticles and intumescent flame retardant, etc., to achieve improved flame retardant Inflammability, reduction of secondary hazards, and easy operation of the preparation process

Active Publication Date: 2013-02-13
SAIYANG SEALING ELEMENT ZHEJIANG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, most of these flame retardant systems are obtained by physical blending at present. It is difficult to obtain good dispersion of nanoparticles and intumescent flame retardants, which seriously affects the performance of their flame retardant effects.

Method used

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  • Flame-retardant coating and preparation method and application thereof
  • Flame-retardant coating and preparation method and application thereof
  • Flame-retardant coating and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Example 1: Synthesis of 2-(diphenoxyphosphoryl)propenamine

[0034] Add 26.8g (0.1mol) diphenyl chlorophosphate and 80mL trichloromethane to the there-necked flask, stir the reaction temperature at 25°C, slowly add 5.7g (0.1mol) allylamine and 20.2g (0.2mol) triethylamine dropwise With 54mL of chloroform mixed solution, after adding, maintain 25 ℃ to react for 6 hours, after filtration, the chloroform is recovered by distillation under reduced pressure to obtain a colorless liquid which is 2-(diphenoxyphosphoryl)propenamine, and the yield is 73.2% , with a purity of 96.4%. Structural characterization: FT-IR (cm -1 ): 3375, 1226, 1060, 1009, 956. 1 H NMR (CDCl 3 )δ(ppm): 7.32~7.16(m, 10H), 5.83~5.76(m, 1H), 5.24~5.21(d, 1H), 5.16~5.13(d, 1H), 3.55~3.50(m, 2H) , 3.21(s, 3H).

Embodiment 2

[0036] The synthesis operation of 2-(diphenoxyphosphoryl)propenamine is the same as that in Example 1. The quantity ratio of the feed materials of diphenyl chlorophosphate and allylamine is 1.0: 1.2, dichloromethane is selected as solvent, pyridine is selected as acid binding agent, the reaction temperature is 10 DEG C, the reaction time is 8 hours, and the yield is 60.4%.

Embodiment 3

[0038] The synthesis operation of 2-(diphenoxyphosphoryl)propenamine is the same as that in Example 1. The amount ratio of the feed materials of diphenyl chlorophosphate and allylamine is 1.0: 1.5, ether is selected as solvent, sodium bicarbonate is selected as acid binding agent, reaction temperature is 0 DEG C, and the reaction time is 12 hours, and the yield is 33.7%.

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Abstract

The invention discloses an intumescent flame-retardant modified polyacrylamide / graphene oxide composite coating, a preparation method and application thereof. The structure of an intumescent flame retardant is represented by a formula (I). The intumescent flame retardant is prepared by adopting the following step of: making diphenyl chlorophosphate react with acrylamine or acrylamine hydrochloride to obtain the intumescent flame retardant. The intumescent flame retardant is copolymerized with acrylamine monomer to obtain intumescent flame-retardant modified polyacrylamide. According to the invention, the intumescent flame-retardant modified polyacrylamide / graphene oxide composite coating is prepared through the adoption of a layer-by-layer self-assembly technology; and through the synergistic flame-retardant effect of the intumescent flame retardant and graphene oxide, the flame retardance of the composite coating is improved, so that the usage amount of the flame retardant coating on textile materials is reduced, therefore the cost of flame-retardant textiles is lowered.

Description

technical field [0001] The invention relates to a flame retardant coating and a preparation method thereof, in particular to an intumescent flame retardant modified polyacrylamine / graphene oxide composite coating, a preparation method and application thereof, in particular to its use in the preparation of flame retardant fabrics application. Background technique [0002] The layer-by-layer self-assembly technology has the advantages of mild conditions, easy operation, control of the generation and ordered assembly of inorganic nanoparticles at the molecular level, and regulation of the composition and thickness of multilayer films. Some scholars have used LBL technology to prepare super-strength polyvinyl alcohol / montmorillonite nanocomposites, whose tensile strength is increased by 4 times compared with polyvinyl alcohol, and the Young's modulus is increased by nearly an order of magnitude. Some scholars have also used layer-by-layer self-assembly technology to prepare pol...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06M15/356D06M11/74C08F230/02C08F226/02C07F9/12
Inventor 黄国波邱方利梁华定陈素清
Owner SAIYANG SEALING ELEMENT ZHEJIANG
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