Hydrophobic polypropylene fiber for water treatment and preparation method thereof

Abstract

The invention relates to an oil-absorbing material for oily sewage treatment, in particular to a hydrophobic polypropylene fiber for water treatment and a preparation method thereof, in which the melt-blown polypropylene fiber is used as a matrix, and the melt-blown polypropylene fiber is treated in a modifier The surface is modified by ultraviolet radiation; the modifiers used include component A and component B as binary monomers, as well as photoinitiators and solvents. Both of them have been greatly improved, and the oil absorption rate has not decreased significantly. In addition, the modified hydrophobic polypropylene fiber also has excellent oil retention performance, which can further expand the market value of polypropylene oil-absorbing materials.

Description

technical field [0001] The invention relates to an oil-absorbing material for water treatment, in particular to a hydrophobic polypropylene fiber for water treatment and a preparation method thereof. Background technique [0002] In the treatment of oily sewage, oil-absorbing materials are mainly divided into natural oil-absorbing materials such as cotton fiber, clay, and silica, and synthetic oil-absorbing materials such as olefins, polyurethanes, and acrylates. Although natural oil-absorbing materials have the advantage of fast oil absorption, they also absorb water while absorbing oil, so their oil-water selectivity is poor, and there is also oil leakage, that is, they cannot retain oil well after absorbing oil. At present, in the foreign oil-absorbing material market, polypropylene-based oil-absorbing materials and polyurethane-based oil-absorbing materials occupy the largest market. Due to their own structural characteristics, both have certain hydrophobic properties, a...

AI Technical Summary

Problems solved by technology

(1) dissolving the wood fiber in the ionic liquid, the mass fraction of the wood fiber is 0.1-20%, to obtain the wood fiber / ionic liquid solution; (2) adding the acrylate monomer and the initiator to the wood fiber / ionic liquid react to produce wood fiber grafted polyacrylate; (3) pour the reaction system containing wood fiber graft polyacrylate in step (2) into the precipitant, the ratio of the volume of the precipitant to the volume of the ionic liquid is 5:1~50 : 1 (mL: g), separated by filtration, washed, collected the solid part, and dried to obtain a wood fiber grafted polyacrylate oil-absorbing material, but its oil-absorbing performance still cannot meet the ideal requirements