Preparation method of organosilicon/hydroxyapatite composite adsorption fiber

Abstract

The invention discloses a preparation method of an organosilicon / hydroxyapatite composite adsorption fiber. The preparation method comprises the following steps: adding polyvinylpyrrolidone to anhydrous ethanol, and performing ultrasonic uniform stirring until the polyvinylpyrrolidone is completely dissolved in order to obtain a dispersed alcohol solution; carrying out wet ball-milling on the hydroxyapatite to form a fine powder, slowly adding the fine powder to the dispersed alcohol solution, and performing a low-temperature ultrasonic reaction for 2-3 h to obtain a first mixed solution; adding dichlorodimethylsilane to toluene, performing stirring until uniformity, then dropwise adding distilled water, and performing sealing stirring for 1-3 h to obtain a second mixed solution; slowly adding the first mixed solution to the second mixed medium, carrying out low-temperature and high-frequency ultrasonic dispersion for 30-60 min, and performing microwave oscillation for 1-2 h to obtaina pre-spinning solution; carrying out high-temperature electrostatic spinning on the pre-spinning solution to obtain single-fiber spun filament, twisting several strands of the single-fiber spin filaments to form twisted spun filaments, and bundling the twisted spun filaments to form a fiber web; and adding the fiber web an ethanol-water solution, carrying out a microwave oscillation reaction for30-60 min, and taking out and drying the fiber web to obtain the organosilicon / hydroxyapatite composite fiber material.

Description

technical field [0001] The invention belongs to the field of waste water treatment, and in particular relates to a preparation method of organosilicon / hydroxyapatite composite adsorption fiber. Background technique [0002] As we all know, global environmental pollution is increasingly destroying the ecological balance formed by the earth's biosphere for hundreds of millions of years, and poses a threat to the living environment of human beings. As national policies, the international community and global residents pay more and more attention to wastewater pollution and environmental protection issues, wastewater treatment has become the top priority of current scientific research. [0003] Wastewater contains various pollutants such as heavy metals, dyes, and organic matter. Among them, the sources of heavy metals include mining and mineral processing, metallurgy, electroplating, chemical industry, dyes, ink manufacturing, ceramics, alloys, paints, photography, glass, pape...

AI Technical Summary

Problems solved by technology

[0007] Aiming at the problems in the prior art, the present invention provides a preparation method of organosilicon / hydroxyapatite composite adsorption fiber, which solves the problem that the existing granular hydroxyapatite is difficult to use, and uses three-dimensional dimethyl silicone resin The three-dimensional structure is used as the framework, and hydroxyapatite is used as the adsorption material to distribute on the inner surface to form an adsorption fiber network