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Plastic with graphene/anthraquinone compound composite grafted on surface and preparing method and application of plastic

A technology of surface grafting and composite materials, which is applied in the field of plastics for the preparation of surface grafted graphene/anthraquinone compound composite materials, can solve the problems of weak binding force, unfavorable environment and operators, etc., and achieve low cost and high growth rate. Fast biodegradation rate, low price effect

Active Publication Date: 2019-08-09
XIAMEN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the graphene oxide in this reaction is physically adsorbed to the surface of the foam, and the binding force is not strong; in addition, the anthraquinone compound used contains a sulfonyl chloride group, and it is easy to generate hydrogen chloride gas when it comes into contact with moisture, which is harmful to the environment and operators. unfavorable

Method used

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  • Plastic with graphene/anthraquinone compound composite grafted on surface and preparing method and application of plastic
  • Plastic with graphene/anthraquinone compound composite grafted on surface and preparing method and application of plastic
  • Plastic with graphene/anthraquinone compound composite grafted on surface and preparing method and application of plastic

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] Hydrophilic modification of the surface of low-density PE plastic with an average particle size of 0.2mm by ozone;

[0040] Add 6 parts of 3-aminopropyltrimethoxysilane to 100 parts of alcohol aqueous solution with a volume ratio of 95:5, stir for half an hour, add 40 parts of the above-mentioned low-density PE plastic with hydrophilic surface, raise the temperature to 55°C, and react for 1.5 hour, filter, filter out the solid and wash three times with absolute ethanol, dry to obtain amino-modified low-density PE plastics;

[0041] Add 1 part of modified Hummers method graphene oxide to 500 parts of tetrahydrofuran, ultrasonically disperse, add 10 parts of the above-mentioned amino-modified low-density PE plastic, stir and react for 1 hour, filter, filter out the solid, wash it with absolute ethanol three times, and dry , to obtain low-density PE plastics with graphene oxide grafted on the surface;

[0042] Ultrasonically disperse 100 parts of the above-mentioned low-d...

Embodiment 2

[0046] Use plasma to modify the surface of PP plastic with an average particle size of 0.05mm;

[0047] Add 9 parts of 3-aminopropyltriethoxysilane to 100 parts of alcohol aqueous solution with a volume ratio of 95:5, stir for half an hour, add 45 parts of the above-mentioned PP plastic with hydrophilic surface, raise the temperature to 60°C, and react for 2 hours , filtered, the filtered solid was washed three times with absolute ethanol, and dried to obtain amino-modified PP plastics;

[0048] Add 1 part of modified Hummers method graphene oxide to 600 parts of tetrahydrofuran, ultrasonically disperse, add 15 parts of the above-mentioned amino-modified PP plastic, stir and react for 1 hour, filter, filter out the solid and wash it with absolute ethanol three times, and dry to obtain Graphene oxide modified PP plastic;

[0049] Ultrasonic disperse 100 parts of the above-mentioned graphene oxide modified PP plastic in 750 parts of tetrahydrofuran, add 15 parts of carbodiimide...

Embodiment 3

[0052] Hydrophilic modification of the surface of semi-soft fillers for sewage treatment by electron beams;

[0053] Add 5 parts of 3-aminopropylmethyldiethoxysilane to 100 parts of alcohol aqueous solution with a volume ratio of 95:5, stir for half an hour, add 35 parts of semi-soft filler with hydrophilic surface, and heat up to 65°C. React for 2 hours, filter, filter out the solid, wash it three times with absolute ethanol, and dry to obtain the amino-modified semi-soft filler;

[0054] Add 1 part of modified Hummers method graphene oxide to 500 parts of tetrahydrofuran, ultrasonically disperse, add 20 parts of the above-mentioned amino-modified semi-soft filler, stir and react for 1.5 hours, filter, filter out the solid and wash it with absolute ethanol three times, Dry to obtain graphene oxide modified semi-soft filler;

[0055] Ultrasonically disperse 100 parts of the above-mentioned graphene oxide modified semi-soft filler in 500 parts of tetrahydrofuran, add 20 parts ...

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Abstract

The invention belongs to the field of water treatment, and relates to the field of treatment of pollutant-containing wastewater, in particular to plastic with a graphene / anthraquinone compound composite grafted on the surface and a preparing method and application of the plastic. The plastic contains a hydroxyl group, a carboxyl group and other active groups after surface hydrophilic treatment andreacts with an amino-containing silane coupling agent to obtain amino-modified plastic, the amino-modified plastic reacts with graphene oxide, carbonyl diimide and N-hydroxysuccinimide are added foractivating the carboxyl group on the surface of the graphene oxide and react with an amino-modified anthraquinone compound, and the plastic with the graphene / anthraquinone compound grafted on the surface is obtained after the graphene oxide is reduced. The biodegradation of azo dyes, nitrate and the like can be accelerated, the recycling frequency reaches 10 times or above, and the plastic can bewidely applied to sewage treatment.

Description

technical field [0001] The invention relates to the field of water treatment engineering, in particular to plastics, preparation methods and applications of surface-grafted graphene / anthraquinone compound composite materials. Background technique [0002] With the rapid development of modern industry, a large number of synthetic chemical substances are applied in the industrial field, and a large amount of industrial wastewater is generated, which will cause serious adverse effects on the environment and ecology. These chemicals are not easily degraded, but effective disposal methods must be found. [0003] Azo dyes are a class of synthetic chemical substances that are harmful to the human body and the environment. They have stable chemical properties, are not easy to biodegrade, and are toxic and carcinogenic. Traditional treatment methods including coagulation-flocculation, membrane treatment, and chemical adsorption cannot completely eliminate the pollution of azo dyes, ...

Claims

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Application Information

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IPC IPC(8): C08G83/00C08F8/42C08F8/00C08F110/02
CPCC08F8/00C08F8/42C08G83/001C08F110/02
Inventor 曾孟祥许美兰严滨叶茜徐苏廖文超
Owner XIAMEN UNIV OF TECH
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