A kind of preparation method of graphene oxide modified triptycene-based polyamide separation membrane

A modification technology of pterene-based polyamide and graphene, which is applied in separation methods, chemical instruments and methods, semi-permeable membrane separation, etc.
CN111111475BActive Publication Date: 2022-03-22NANJING TECH UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
NANJING TECH UNIV
Publication Date
2022-03-22

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Abstract

The invention discloses a preparation method of a graphene oxide modified triptycene-based polyamide separation membrane. The method comprises the following preparation steps: using a triptycene compound containing an active group, a diacid chloride compound and a graphene oxide compound as The monomer is polymerized in an organic solvent in the presence of an acid-binding agent; the polymer solution obtained by the reaction is poured into deionized water for precipitation, and the filtered precipitate is washed with methanol and deionized water respectively, and dried to obtain Graphene oxide-modified triptycene-based polymer; graphene oxide-modified triptycene-based polymer is dissolved in an organic solvent to make a casting solution, coated on a support and dried to obtain a graphene oxide-modified Triptyl polyamide separation membrane. The invention solves the feature of close packing of network structure macromolecules and breaks the limitation of small flux of traditional triptylenyl polyamide separation membrane.
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Description

technical field

[0001] The invention relates to a preparation method of a graphene oxide modified triptycene-based polyamide film, which belongs to the polymer film preparation technology and belongs to the field of polymer film. Background technique

[0002] Volatile organic compounds (VOCs) are a class of highly volatile substances. The unorganized discharge of volatile organic compounds will not only cause a large waste of resources, but also cause environmental pollution and seriously endanger human health. For this reason, the country has promulgated various laws and regulations to control the emission concentration of volatile organic compounds, such as "Comprehensive Emission Standards of Air Pollutants". In order to meet the national emission requirements, researchers have developed a variety of treatment technologies, such as using adsorption, absorption, condensation, membrane separation, etc. to treat and recover organic waste gas, and using technologies such as ...

Claims

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