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A preparation method of silicon-phosphorus synergistic flame-retardant graphene polymer material

A polymer material, synergistic flame retardant technology, applied in the field of materials, can solve problems such as poor flame retardancy, and achieve the effects of improving stability and strength, reducing agglomeration, and improving flame retardant and fire performance.

Active Publication Date: 2018-03-30
山东本源晶体科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a silicon-phosphorus synergistic flame-retardant graphene polymer material for the poor flame retardancy of polyethylene terephthalate materials and the problem that traditional inorganic flame-retardant additives are easy to form agglomerations in polyester materials preparation method

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] A method for preparing a silicon-phosphorus synergistic flame-retardant graphene polymer material, comprising the following steps:

[0021] (1) Take graphene oxide, add it to 10 times its weight in absolute ethanol, raise the temperature to 55°C, add propylene oxide, keep stirring for 30 minutes, and obtain an epoxy solution;

[0022] (2) Take dodecyl primary amine, add it to pentaerythritol 5 times its weight, stir evenly, add the above epoxy solution, stir and react for 13 hours, add dropwise phosphoric acid aqueous solution with a concentration of 6%, and rise to The highest temperature is 100°C, add stannous octoate, keep it warm for 7 hours, filter, wash the precipitate with water, dry at 90°C for 3 hours in vacuum, and cool to obtain phosphoesterified graphene;

[0023] (3) Take sorbitan monostearate, add it to ethyl acetate whose weight is 18 times, stir and dissolve, add phosphorylated graphene, and preheat at 60°C for 20 minutes to obtain an ester dispersion; ...

Embodiment 2

[0031] A method for preparing a silicon-phosphorus synergistic flame-retardant graphene polymer material, comprising the following steps:

[0032] (1) Take graphene oxide, add it to 3 times its weight in absolute ethanol, raise the temperature to 40-55°C, add propylene oxide, keep stirring for 20 minutes, and obtain an epoxy solution;

[0033] (2) Take dodecyl primary amine, add it to pentaerythritol which is 3 times its weight, stir evenly, add the above epoxy solution, stir and react for 10 hours, add dropwise phosphoric acid aqueous solution with a concentration of 4%, and rise to The maximum temperature is 90°C, add stannous octoate, keep it warm for 5 hours, filter, wash the precipitate with water, dry it under vacuum at 70°C for 2 hours, and cool to obtain phosphoesterified graphene;

[0034] (3) Take sorbitan monostearate, add it to ethyl acetate whose weight is 16 times, stir and dissolve, add phosphoesterified graphene, and preheat at 50°C for 10 minutes to obtain an ...

Embodiment 3

[0042] A method for preparing a silicon-phosphorus synergistic flame-retardant graphene polymer material, comprising the following steps:

[0043] (1) Take graphene oxide, add it to 5 times its weight in absolute ethanol, raise the temperature to 40-55°C, add propylene oxide, keep stirring for 25 minutes, and obtain an epoxy solution;

[0044] (2) Take dodecyl primary amine, add it to pentaerythritol which is 3 times its weight, stir evenly, add the above epoxy solution, stir and react for 12 hours, add dropwise phosphoric acid aqueous solution with a concentration of 4%, and rise to The highest temperature is 95°C, add stannous octoate, keep it warm for 5 hours, filter, wash the precipitate with water, dry at 75°C for 2 hours in vacuum, and cool to obtain phosphoesterified graphene;

[0045] (3) Take sorbitan monostearate, add it to ethyl acetate whose weight is 16 times, stir and dissolve, add phosphoesterified graphene, and preheat at 55°C for 15 minutes to obtain an ester ...

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Abstract

The invention discloses a preparation method of a silicon and phosphorus synergic flame-retardant graphene polymer material. Added phosphate can be dehydrated and catalyzed into carbon in a burning process to exert heat insulation and oxygen separation effects on a material below a carbon layer; the solid protective carbon layer is formed on the surface of a polymer; silicon filling and graphene are enriched on the surface of the carbon layer of the polymer in the burning process to exert a certain carbon layer enhancement effect; carbon residue has certain solidity, shows a dense and intact carbon layer, and exerts good flame retardance and fire resistance.

Description

technical field [0001] The invention belongs to the field of materials, and in particular relates to a method for preparing a silicon-phosphorus synergistic flame-retardant graphene polymer material. Background technique [0002] Polyethylene terephthalate is a milky white or light yellow, highly crystalline polymer with a smooth and shiny surface. It has excellent physical and mechanical properties in a wide temperature range. The long-term use temperature can reach 120 ° C. It has excellent electrical insulation. Even at high temperature and high frequency, its electrical properties are still good, but its corona resistance is poor. Creep resistance, fatigue resistance, friction resistance and dimensional stability are all very good. Polyethylene terephthalate has ester bonds, which will decompose under the action of strong acid, strong alkali and water vapor. It is resistant to organic solvents and weather resistance. It is widely used in the fields of electronic applian...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L67/02C08L31/04C08K13/06C08K9/04C08K3/04C08K3/36C08F218/08C08F222/06C08F8/12C08G63/183
CPCC08F8/12C08F218/08C08G63/183C08L67/02C08L2201/02C08L2312/00C08F222/06C08L31/04C08K13/06C08K9/04C08K3/04C08K3/36
Inventor 杨冰雪于法鹏杨志远马庆宇
Owner 山东本源晶体科技有限公司
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