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...

Examples

Embodiment 1

[0034] A preparation method of organosilicon / hydroxyapatite composite adsorption fiber, comprising the steps of:

[0035] Step 1, adding polyvinylpyrrolidone into absolute ethanol, and ultrasonically stirring until completely dissolved to obtain a dispersed alcohol solution;

[0036] Step 2, wet-ball-milling hydroxyapatite to form a fine powder, and then slowly adding it to the dispersing alcohol solution for low-temperature ultrasonic reaction for 2 hours to obtain the first mixed solution;

[0037] Step 3, adding dichlorodimethylsilane into toluene and stirring evenly, then adding distilled water dropwise and stirring for 1 hour to obtain a second mixed solution;

[0038] Step 4: Slowly add the first mixed liquid to the second mixed medium for low-temperature, high-frequency ultrasonic dispersion for 30 minutes, and microwave oscillation for 1 hour to obtain a pre-spinning liquid;

[0039] Step 5, subjecting the pre-spinning solution to high-temperature electrospinning to o...

Embodiment 2

[0050] A preparation method of organosilicon / hydroxyapatite composite adsorption fiber, comprising the steps of:

[0051] Step 1, adding polyvinylpyrrolidone into absolute ethanol, and ultrasonically stirring until completely dissolved to obtain a dispersed alcohol solution;

[0052] Step 2, wet ball milling the hydroxyapatite to form a fine powder, and then slowly adding it to the dispersing alcohol solution for low-temperature ultrasonic reaction for 3 hours to obtain the first mixed solution;

[0053] Step 3, adding dichlorodimethylsilane into toluene and stirring evenly, then adding distilled water dropwise and stirring for 3 hours to obtain a second mixed solution;

[0054] Step 4: Slowly add the first mixed liquid to the second mixed medium for low-temperature, high-frequency ultrasonic dispersion for 60 minutes, and microwave oscillation for 2 hours to obtain a pre-spinning liquid;

[0055] Step 5, subjecting the pre-spinning solution to high-temperature electrospinnin...

Embodiment 3

[0066] A preparation method of organosilicon / hydroxyapatite composite adsorption fiber, comprising the steps of:

[0067] Step 1, adding polyvinylpyrrolidone into absolute ethanol, and ultrasonically stirring until completely dissolved to obtain a dispersed alcohol solution;

[0068] Step 2, wet ball milling the hydroxyapatite to form a fine powder, and then slowly adding it to the dispersing alcohol solution for low-temperature ultrasonic reaction for 3 hours to obtain the first mixed solution;

[0069] Step 3, adding dichlorodimethylsilane into toluene and stirring evenly, then adding distilled water dropwise and stirring for 2 hours to obtain a second mixed solution;

[0070] Step 4: Slowly add the first mixed liquid to the second mixed medium for low-temperature, high-frequency ultrasonic dispersion for 50 minutes, and microwave oscillation for 2 hours to obtain a pre-spinning liquid;

[0071] Step 5, subjecting the pre-spinning solution to high-temperature electrospinnin...

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...

Examples

Embodiment 1

[0034] A preparation method of organosilicon / hydroxyapatite composite adsorption fiber, comprising the steps of:

[0035] Step 1, adding polyvinylpyrrolidone into absolute ethanol, and ultrasonically stirring until completely dissolved to obtain a dispersed alcohol solution;

[0036] Step 2, wet-ball-milling hydroxyapatite to form a fine powder, and then slowly adding it to the dispersing alcohol solution for low-temperature ultrasonic reaction for 2 hours to obtain the first mixed solution;

[0037] Step 3, adding dichlorodimethylsilane into toluene and stirring evenly, then adding distilled water dropwise and stirring for 1 hour to obtain a second mixed solution;

[0038] Step 4: Slowly add the first mixed liquid to the second mixed medium for low-temperature, high-frequency ultrasonic dispersion for 30 minutes, and microwave oscillation for 1 hour to obtain a pre-spinning liquid;

[0039] Step 5, subjecting the pre-spinning solution to high-temperature electrospinning to o...

Embodiment 2

[0050] A preparation method of organosilicon / hydroxyapatite composite adsorption fiber, comprising the steps of:

[0051] Step 1, adding polyvinylpyrrolidone into absolute ethanol, and ultrasonically stirring until completely dissolved to obtain a dispersed alcohol solution;

[0052] Step 2, wet ball milling the hydroxyapatite to form a fine powder, and then slowly adding it to the dispersing alcohol solution for low-temperature ultrasonic reaction for 3 hours to obtain the first mixed solution;

[0053] Step 3, adding dichlorodimethylsilane into toluene and stirring evenly, then adding distilled water dropwise and stirring for 3 hours to obtain a second mixed solution;

[0054] Step 4: Slowly add the first mixed liquid to the second mixed medium for low-temperature, high-frequency ultrasonic dispersion for 60 minutes, and microwave oscillation for 2 hours to obtain a pre-spinning liquid;

[0055] Step 5, subjecting the pre-spinning solution to high-temperature electrospinnin...

Embodiment 3

[0066] A preparation method of organosilicon / hydroxyapatite composite adsorption fiber, comprising the steps of:

[0067] Step 1, adding polyvinylpyrrolidone into absolute ethanol, and ultrasonically stirring until completely dissolved to obtain a dispersed alcohol solution;

[0068] Step 2, wet ball milling the hydroxyapatite to form a fine powder, and then slowly adding it to the dispersing alcohol solution for low-temperature ultrasonic reaction for 3 hours to obtain the first mixed solution;

[0069] Step 3, adding dichlorodimethylsilane into toluene and stirring evenly, then adding distilled water dropwise and stirring for 2 hours to obtain a second mixed solution;

[0070] Step 4: Slowly add the first mixed liquid to the second mixed medium for low-temperature, high-frequency ultrasonic dispersion for 50 minutes, and microwave oscillation for 2 hours to obtain a pre-spinning liquid;

[0071] Step 5, subjecting the pre-spinning solution to high-temperature electrospinnin...