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Graphene anti-ultraviolet flame-retardant synergist and preparation method thereof

A technology of flame retardant synergist and anti-ultraviolet light, which is applied in the field of graphene anti-ultraviolet light flame retardant synergist and its preparation, can solve the problems of poor flame retardancy and anti-ultraviolet light performance, and achieve dispersion and improvement properties, avoid agglomeration, and good anti-ultraviolet aging performance

Active Publication Date: 2022-02-01
HARBIN UNIV OF SCI & TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The present invention provides a graphene anti-ultraviolet Photoflame retardant synergist and preparation method thereof

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  • Graphene anti-ultraviolet flame-retardant synergist and preparation method thereof

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Embodiment 1

[0034] Embodiment 1: a kind of graphene anti-ultraviolet light flame retardant synergist of the present embodiment is prepared from graphene sheet, MOF and phosphorus-containing flame retardant, wherein the mass ratio of described graphene sheet and MOF is 1: 19. The mass ratio of the graphene flakes to 2-carboxyethylphenylphosphinic acid is 1:20, the MOF is Ni-ZIF, and the ligand is 2-methylimidazole, Ni and 2-methyl The molar ratio of imidazole is 1:4, and the sheet thickness of the graphene flakes is 2nm.

[0035] The method for preparing a kind of graphene anti-ultraviolet light flame retardant synergist of embodiment 1 is carried out as follows:

[0036] Step 1: 0.05g graphene flakes are mixed with 50mL methanol, then placed in a horizontal sand mill, and sanded at room temperature for 60min to obtain a graphene methanol dispersion;

[0037] Step 2: ①Dissolve 0.7g nickel nitrate hexahydrate in graphene methanol dispersion, and ultrasonically disperse at 200W for 10min to...

Embodiment 2

[0039] Embodiment 2: a kind of graphene anti-ultraviolet light flame retardant synergist of the present embodiment is prepared from graphene sheet, MOF and phosphorus-containing flame retardant, wherein the mass ratio of described graphene sheet and MOF is 1: 16. The mass ratio of the graphene flakes to 2-carboxyethylphenylphosphinic acid is 1:30, the MOF is Ni-ZIF, and the ligand is 2-methylimidazole, Ni and 2-methyl The molar ratio of imidazole is 1:4, and the sheet thickness of the graphene flakes is 2nm.

[0040] The method for a kind of graphene anti-ultraviolet flame retardant synergist of preparation embodiment 2 is carried out as follows:

[0041] Step 1: Mix 0.05g graphene flakes with 40mL methanol, then place them in a horizontal sand mill, and grind them for 60min at room temperature to obtain a graphene methanol dispersion;

[0042] Step 2: ①Dissolve 0.6g nickel nitrate hexahydrate in graphene methanol dispersion, and ultrasonically disperse at 200W for 10min to o...

Embodiment 3

[0044] Embodiment 3: a kind of graphene anti-ultraviolet light flame retardant synergist of the present embodiment is prepared from graphene sheet, MOF and phosphorus-containing flame retardant, wherein the mass ratio of described graphene sheet and MOF is 1: 13. The mass ratio of the graphene flakes to 2-carboxyethylphenylphosphinic acid is 1:20, the MOF is Ni-ZIF, and the ligand is 2-methylimidazole, Ni and 2-methyl The molar ratio of imidazole is 1:4, and the sheet thickness of the graphene flakes is 2nm.

[0045] The method for a kind of graphene anti-ultraviolet flame retardant synergist of preparation embodiment 3 is carried out as follows:

[0046] Step 1: Mix 0.1g graphene flakes with 50mL methanol, then place them in a horizontal sand mill, and sand them at room temperature for 60min to obtain a graphene methanol dispersion;

[0047] Step 2: ①Dissolve 1.0g nickel nitrate hexahydrate in graphene methanol dispersion, and ultrasonically disperse at 200W for 10min to obt...

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Abstract

The invention relates to a graphene anti-ultraviolet flame-retardant synergist and a preparation method thereof. The invention belongs to the technical field of polymer modification. The invention aims to solve the technical problem that an existing graphene flame-retardant material is poor in flame retardance and ultraviolet resistance. The anti-ultraviolet flame-retardant synergist is prepared from a graphene sheet, MOF (Metal Organic Framework) and a phosphorus-containing flame retardant. The method comprises the following steps: firstly, introducing nickel nitrate hexahydrate and 2-methylimidazole into a graphene methanol dispersion liquid to prepare MOF-coated graphene, and then reacting the MOF-coated graphene with a flame-retardant modifier to prepare the graphene anti-ultraviolet flame-retardant synergist. The graphene anti-ultraviolet flame-retardant synergist prepared by the invention has the characteristics of no halogen, no toxicity and environment friendliness, can be used for flame-retardant synergy and anti-ultraviolet modification of polymers, and improves the flame-retardant property and the anti-ultraviolet aging property.

Description

technical field [0001] The invention belongs to the technical field of polymer modification, and in particular relates to a graphene anti-ultraviolet light flame retardant synergist and a preparation method thereof. Background technique [0002] Most polymers are often flammable due to their own structural characteristics, especially polymer materials composed of carbon chains such as polyolefins. With the continuous advancement of polymer flame retardant technology, flame retardants, as a commonly used polymer additive, have received extensive attention and rapid development. At present, the research and application of halogen-free, non-toxic and environmentally friendly flame retardants is the focus of the development of flame-retardant polymers, and has led to the development and application of some materials related to flame-retardant technology. In recent years, there have been many reports on the research of graphene as an emerging material in the field of flame retar...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L87/00C08K3/04C08K5/5313C08L23/08C08L23/06C08K3/22
CPCC08L87/00C08K3/042C08K5/5313C08L23/0853C08K2003/2224C08L2201/08C08L2201/02C08L23/06C08K3/22
Inventor 韩志东陈蕾王春锋王永亮
Owner HARBIN UNIV OF SCI & TECH