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Flame-retardant graphene composite plastic material for household appliances and preparation method thereof

A technology of graphene composite and plastic materials, which is applied in the field of composite plastics, can solve problems such as adverse effects on the environment and human health, and achieve excellent flame retardant performance and the effect of suppressing escape

Inactive Publication Date: 2019-01-11
CHENDU NEW KELI CHEM SCI CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] Aiming at the currently widely used housing materials of home appliances that need to be added with halogen-containing flame retardants, a large amount of toxic gases are released during combustion, and there are defects that have adverse effects on the environment and human health. This invention proposes a special flame-retardant graphene for home appliances. Composite plastic materials and preparation methods, thereby effectively ensuring the flame retardant performance of composite plastics, and having the advantages of being halogen-free and non-toxic

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] The preparation process is:

[0032] (1) Disperse graphene oxide and ionic liquid 1-butyl-3-methylimidazolium tetrafluoroborate in water and ultrasonically disperse to obtain a mixed solution; the ultrasonic power density of ultrasonic dispersion is 1.5W / cm 2 , the time is 28min; in the mixed solution, 7 parts by weight of graphene oxide, 25 parts by weight of 1-butyl-3-methylimidazolium tetrafluoroborate, and 68 parts by weight of water;

[0033] (2) Slowly drop phosphotungstic acid aqueous solution with a mass concentration of 30% into the mixed solution prepared in step (1), raise the temperature to 80°C, slowly add the reducing agent hydrazine hydrate, stir for 1 hour, then cool to room temperature and continue stirring for 10 hours , vacuum-dried at 80°C for 4 hours to prepare a graphene-ionic liquid modified phosphotungstate hybrid; in the reaction system, 63 parts by weight of phosphotungstic acid aqueous solution, 33 parts by weight of the mixed solution, and 4 ...

Embodiment 2

[0040] The preparation process is:

[0041] (1) Disperse graphene oxide and ionic liquid 1-butyl-3-methylimidazolium tetrafluoroborate in water and ultrasonically disperse to obtain a mixed solution; the ultrasonic power density of ultrasonic dispersion is 1W / cm 2 , the time is 40min; in the mixed solution, 5 parts by weight of graphene oxide, 22 parts by weight of 1-butyl-3-methylimidazolium tetrafluoroborate, and 73 parts by weight of water;

[0042] (2) Slowly drop phosphotungstic acid aqueous solution with a mass concentration of 30% into the mixed solution prepared in step (1), raise the temperature to 80°C, slowly add the reducing agent hydrazine hydrate, stir for 1 hour, then cool to room temperature and continue stirring for 10 hours , vacuum-dried at 80°C for 4 hours to prepare a graphene-ionic liquid modified phosphotungstate hybrid; in the reaction system, 72 parts by weight of phosphotungstic acid aqueous solution, 25 parts by weight of the mixed solution, and 3 pa...

Embodiment 3

[0049] The preparation process is:

[0050] (1) Disperse graphene oxide and ionic liquid 1-butyl-3-methylimidazolium tetrafluoroborate in water and ultrasonically disperse to obtain a mixed solution; the ultrasonic power density of ultrasonic dispersion is 2W / cm 2 , the time is 20min; in the mixed solution, 10 parts by weight of graphene oxide, 28 parts by weight of 1-butyl-3-methylimidazolium tetrafluoroborate, and 62 parts by weight of water;

[0051] (2) Slowly drop phosphotungstic acid aqueous solution with a mass concentration of 30% into the mixed solution prepared in step (1), raise the temperature to 80°C, slowly add the reducing agent hydrazine hydrate, stir for 1 hour, then cool to room temperature and continue stirring for 10 hours , vacuum-dried at 80°C for 4 hours to obtain a graphene-ionic liquid modified phosphotungstate hybrid; in the reaction system, 55 parts by weight of phosphotungstic acid aqueous solution, 40 parts by weight of the mixed solution, and 5 pa...

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Abstract

The invention provides a flame-retardant graphene composite plastic material for household appliances and a preparation method thereof. The method comprises the following steps: adding graphene oxideand ionic liquid 1-butyl-3-methylimidazolium tetrafluoroborate to water to prepare a mixture, sequentially adding an aqueous solution of phosphotungstic acid and hydrazine hydrate for a reaction to obtain a graphene-ionic liquid modified phosphotungstate hybrid, mixing the material with styrene-butadiene rubber particles, ethylbenzene, styrene, acrylonitrile, and an initiator, and heating a mixture for a reaction to obtain the flame-retardant graphene composite plastic material for household appliances. The method provides the composite plastic having excellent flame-retardant performance by adding the graphene-ionic liquid modified phosphotungstate hybrid when in-situ polymerization of an ABS monomer is carried out, the flame-retardant graphene composite plastic material is halogen-free,highly efficient, and non-toxic, and does not cause adverse effects on the environment and human health, and is the ideal material for the preparation of home appliance casings.

Description

technical field [0001] The invention relates to the field of composite plastics, in particular to the preparation of flame-retardant plastics, in particular to a flame-retardant graphene composite plastic material for household appliances and a preparation method thereof. Background technique [0002] Since the 1980s, the output of my country's home appliance products has grown rapidly, and the product quality has also continued to improve. In November 2001, my country officially joined the WTO, which fully opened the gates for the development of my country's home appliance products, making my country's home appliance production and sales gradually surpass Europe, the United States and Japan. Japan and other big manufacturing countries have become the world's largest producer and exporter of electrical appliances. In addition, my country has the world's largest consumer market and low labor costs. This has led to the rapid development of my country's home appliance industry in...

Claims

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Application Information

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IPC IPC(8): C08F279/04C08F2/44C08K9/04C08K3/04C08K3/32C08K9/02
CPCC08F279/04C08F2/44C08K3/042C08K3/32C08K9/02C08K9/04
Inventor 陈庆昝航
Owner CHENDU NEW KELI CHEM SCI CO LTD
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