A kind of antifouling type hemp fiber material, its preparation method and application

Abstract

The invention discloses an anti-fouling type hemp fiber material, its preparation method and its application. The preparation method comprises first using an oxidant to carboxylate the surface of the hemp fiber, reacting polyvinyl alcohol with carboxyl groups to prepare side chains, and then On the basis of the chain, polyacrylonitrile groups and sultaine groups are grafted by cerium ion-initiated polymerization and reaction, followed by amidoximation to make side chains grafted with polyamidoxime and sultaine at the same time The hemp fiber material is an anti-fouling hemp fiber material, and the material is used as an adsorbent for extracting uranium from seawater. The seawater uranium extraction adsorbent has more uranium adsorption sites, thereby improving the adsorption capacity and selectivity, and has anti-fouling groups, so as to avoid the influence of marine organisms on the adsorbent when it is put into the sea.

Description

Antifouling type hemp fiber material, preparation method and application thereof technical field The present invention relates to new material field, be specifically related to a kind of antifouling type hemp fiber material, its preparation method and application. Background technique With the rapid development of nuclear energy, uranium is an important nuclear raw material, and its demand is also increasing day by day, but the terrestrial uranium reserves are only Enough to wear out in the next hundred years. Seawater contains about a thousand times more uranium than land-based uranium mines, with a total content of about 4.5 billion tons. Seawater uranium will become Alternative resources for terrestrial uranium. Developing suitable seawater uranium mining technology and adsorbents to ensure my country's uranium reserves is the key to realizing national nuclear An important guarantee for energy development and economic construction. However, the uranium concentr...

AI Technical Summary

Problems solved by technology

[0008] In order to solve the problem that the hemp fiber itself is insoluble in the reagents used for modification, the heterogeneous reaction leads to low grafting rate, few adsorption sites, and can not achieve a relatively ideal adsorption effect. The invention provides an anti-fouling type hemp Hemp fiber material, its preparation method and its application

Images