Preparation method and application of plastic surface grafted anthraquinone compound

A technology of surface grafting and compounding, which is applied in the field of preparation of anthraquinone compound grafting on the surface of plastics, can solve the problems of poor versatility and high price of macroporous foam, and achieve the effects of low cost, accelerated biodegradation rate, and wide sources

Active Publication Date: 2021-08-17
XIAMEN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] For example, the Chinese invention application patent with the notification number CN106830311A discloses the use of hydroxyl-containing macroporous foam as a physical carrier, but the hydroxyl-containing macroporous foam is expensive and poor in versatility

Method used

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  • Preparation method and application of plastic surface grafted anthraquinone compound
  • Preparation method and application of plastic surface grafted anthraquinone compound
  • Preparation method and application of plastic surface grafted anthraquinone compound

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] The surface of low-density PE plastic with an average particle size of 0.2 mm is hydrophilically modified by ozone.

[0038] Add 7 parts of 3-(2,3-glycidoxy)propyltrimethoxysilane to 100 parts of alcohol aqueous solution with a volume ratio of 95:5, stir for half an hour, and add 30 parts of the above-mentioned surface hydrophilic low-density PE For plastics, heat up to 60°C, react for 2 hours, filter, filter out solids, wash with absolute ethanol three times, and dry to obtain epoxy-modified low-density PE plastics.

[0039] Add 100 parts of 2-aminoanthraquinone and 2 parts of triethylamine into 400 parts of tetrahydrofuran, stir evenly, add 100 parts of the above-mentioned epoxy-modified low-density PE plastic, stir at room temperature for 1 hour, filter, and filter out the solid with free Washing with water and ethanol for three times and drying to obtain low-density PE plastics grafted with anthraquinone compound on the surface. FT-IR analysis, the product is at 15...

Embodiment 2

[0042] Hydrophilic modification of the surface of semi-soft packing used in sewage treatment was carried out by using ozone.

[0043] Add 5 parts of 3-(2,3-glycidoxy)propyltrimethoxysilane to 100 parts of alcohol aqueous solution with a volume ratio of 95:5, stir for half an hour, and add 30 parts of the above-mentioned semi-soft surface hydrophilic The filler was heated to 60°C, reacted for 2 hours, filtered, and the filtered solid was washed three times with absolute ethanol and dried to obtain an epoxy-modified semi-soft filler.

[0044] Add 100 parts of 2-aminoanthraquinone and 3 parts of triethylamine into 500 parts of tetrahydrofuran, stir evenly, add 150 parts of the above-mentioned epoxy-modified semi-soft filler, stir at room temperature for 5 hours, filter, and filter out the solid with free Washing with water and ethanol for three times and drying to obtain a semi-soft filler grafted with anthraquinone compound on the surface.

[0045] The elemental analysis method...

Embodiment 3

[0047] The surface of PP plastic with an average particle size of 0.05 mm is hydrophilically modified by plasma.

[0048] Add 8 parts of 3-(2,3-glycidoxy)propyltriethoxysilane to 100 parts of alcohol aqueous solution with a volume ratio of 95:5, stir for half an hour, and add 30 parts of the above-mentioned surface-hydrophilic PP plastic , heated up to 65°C, reacted for 2 hours, filtered, and the filtered solid was washed three times with absolute ethanol and dried to obtain epoxy-modified PP plastic.

[0049] Add 100 parts of 1-amino-2-bromo-4-hydroxyanthraquinone and 2 parts of triethylamine into 500 parts of tetrahydrofuran, stir evenly, add 100 parts of the above-mentioned epoxy-modified PP plastic, stir at room temperature for 2 hours, filter , filtered out the solid, washed three times with absolute ethanol, and dried to obtain a PP plastic grafted with anthraquinone compound on the surface. FT-IR analysis, product at 1589cm -1 The sharp absorption peak at 1635cm is th...

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Abstract

The invention belongs to the field of water treatment, and relates to the field of waste water treatment containing pollutants, in particular to a preparation method and application of anthraquinone compound grafted on the surface of plastics. In the present invention, after the plastic is subjected to hydrophilic treatment by plasma, strong oxidant, ozone, γ-ray, electron beam or ion beam, and then treated with epoxy silane coupling agent, epoxy modified plastic is obtained; epoxy modified The plastic reacts with amino-containing anthraquinone compounds to obtain plastics grafted with anthraquinone compounds on the surface. The plastics grafted with anthraquinone compound on the surface of the invention can accelerate the biodegradation of azo dyes, nitrates, etc., and can be recycled and reused after simple treatment. It can be used in wastewater containing azo dyes, nitrates, etc.

Description

technical field [0001] The invention relates to the field of water treatment engineering, in particular to a preparation method and application of anthraquinone compound grafted on the surface of plastics. 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, and are likely to ca...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08J7/12C08J9/36C02F3/34C02F3/00C02F101/16C02F101/30C02F101/34C02F101/38C08L23/06C08L23/12C08L27/18
CPCC02F3/00C02F3/34C02F2101/163C02F2101/308C02F2101/34C02F2101/38C08J7/12C08J7/123C08J9/36C08J2323/06C08J2323/12C08J2327/18
Inventor 叶茜徐苏廖文超曾孟祥许美兰严滨
Owner XIAMEN UNIV OF TECH
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