A kind of nanocomposite fiber material and preparation method thereof

Abstract

The invention provides a method for preparing nanocomposite fiber materials, which includes the following steps: (1) dispersing a plurality of functional nanoparticles in an organic solvent to form a functional nanoparticle suspension; (2) providing a molten state an organic polymer carrier material; (3) spraying the functional nanoparticle suspension onto the molten organic polymer carrier material, so that the plurality of functional nanoparticles are attached to the molten organic polymer The surface of the carrier material; and (4) solidifying the molten organic polymer carrier material obtained in step (3) to obtain the nanocomposite fiber material. The invention also provides a nanocomposite fiber material prepared by the above method. The nanocomposite fiber material realizes effective loading of functional nanoparticles through organic polymer carrier materials, can achieve high loading of functional nanoparticles, and can be used in environmental protection fields such as sewage purification, air purification, antibacterial and anti-virus.

Description

technical field

[0001] The invention belongs to the field of fiber materials, in particular to a nanocomposite fiber material and a preparation method thereof. Background technique

[0002] At present, the traditional water pollution treatment methods used in the domestic and foreign markets are physical methods, chemical methods, and biological methods, each of which has its own disadvantages, high cost, high energy consumption, and even secondary pollution, and the purely purified water is still " Dead body", only the ecological system that restores the balance of the water body can make the water environment truly "resurrected". Traditional treatment methods cannot fundamentally solve water quality problems. Even if a lot of manpower, material resources, and financial resources are invested, the effect is still very small. Therefore, breakthrough technologies that can completely solve river water pollution control are urgently needed.

[0003] Photocatalytic materials em...

Examples

Embodiment 1

[0052] This embodiment provides a preparation method of titanium dioxide polyester composite fiber material, comprising the following steps:

[0053] Step (1) dispersing a plurality of nanometer titanium dioxide particles in ethanol to form a suspension of nanometer titanium dioxide particles;

[0054] Step (2) provides a molten polyester; specifically, extruding the polyester dry slices through a screw extruder into a thin stream of polyester melt through a spinneret to obtain the molten polyester;

[0055] In step (3), the nano-titanium dioxide particle suspension is heated to 50° C., and sprayed to the polyester melt stream from around the polyester melt stream at a flow rate of 0.1 m / s, so that the poly A nano-titanium dioxide particle floats on the surface of the polyester melt stream to obtain a molten titanium dioxide-polyester composite material;

[0056] Step (4) solidifying the molten titanium dioxide polyester composite material into titanium dioxide polyester comp...

Embodiment 2

[0059] This example provides a preparation method of a silica-polyamide composite fiber material, which is basically the same as the preparation method of the titanium dioxide polyester composite fiber material provided in Example 1, except that this example uses nano-polyamide Silicon particles are used as functional nanoparticles, and polyamide materials are used as organic polymer flexible carriers; in addition, in steps (3) and (4), the nano-calcium oxide particle suspension is heated to 100 ° C and heated at 0.3m / s The flow rate is sprayed from the surroundings of the polyamide melt stream to the polyamide melt stream, and solidified to obtain a silica-polyamide composite filament; the silica-polyamide composite filament is twisted into a strand with 10-80 strands. root bulky thick fibers, and weave to form a continuous loop structure with a diameter of about 0.5-3cm, that is, to obtain the silica polyamide composite fiber material, wherein, in the silica polyamide composi...

Embodiment 3

[0062] This example provides a method for preparing a porous hydroxyapatite polyester composite fiber material, which is basically the same as the preparation method for the titanium dioxide polyester composite fiber material provided in Example 1, except that this example uses nanoporous The hydroxyapatite particles are used as functional nanoparticles; in addition, in step (3), the flow velocity of the nanoporous hydroxyapatite particle suspension to the polyester molten stream is 0.4m / s.

[0063]In the porous hydroxyapatite polyester composite fiber material provided in this embodiment, the plurality of porous hydroxyapatite particles are evenly embedded in the polyester material. It is measured that in the porous hydroxyapatite polyester composite fiber material, the loading capacity of nanoporous hydroxyapatite particles is 5% to 10% of the mass of the polyester material; the porous hydroxyapatite polyester composite fiber material The specific surface area is 100m 2 / g~...

technical field

[0001] The invention belongs to the field of fiber materials, in particular to a nanocomposite fiber material and a preparation method thereof. Background technique

[0002] At present, the traditional water pollution treatment methods used in the domestic and foreign markets are physical methods, chemical methods, and biological methods, each of which has its own disadvantages, high cost, high energy consumption, and even secondary pollution, and the purely purified water is still " Dead body", only the ecological system that restores the balance of the water body can make the water environment truly "resurrected". Traditional treatment methods cannot fundamentally solve water quality problems. Even if a lot of manpower, material resources, and financial resources are invested, the effect is still very small. Therefore, breakthrough technologies that can completely solve river water pollution control are urgently needed.

[0003] Photocatalytic materials em...

Examples

Embodiment 1

[0052] This embodiment provides a preparation method of titanium dioxide polyester composite fiber material, comprising the following steps:

[0053] Step (1) dispersing a plurality of nanometer titanium dioxide particles in ethanol to form a suspension of nanometer titanium dioxide particles;

[0054] Step (2) provides a molten polyester; specifically, extruding the polyester dry slices through a screw extruder into a thin stream of polyester melt through a spinneret to obtain the molten polyester;

[0055] In step (3), the nano-titanium dioxide particle suspension is heated to 50° C., and sprayed to the polyester melt stream from around the polyester melt stream at a flow rate of 0.1 m / s, so that the poly A nano-titanium dioxide particle floats on the surface of the polyester melt stream to obtain a molten titanium dioxide-polyester composite material;

[0056] Step (4) solidifying the molten titanium dioxide polyester composite material into titanium dioxide polyester comp...

Embodiment 2

[0059] This example provides a preparation method of a silica-polyamide composite fiber material, which is basically the same as the preparation method of the titanium dioxide polyester composite fiber material provided in Example 1, except that this example uses nano-polyamide Silicon particles are used as functional nanoparticles, and polyamide materials are used as organic polymer flexible carriers; in addition, in steps (3) and (4), the nano-calcium oxide particle suspension is heated to 100 ° C and heated at 0.3m / s The flow rate is sprayed from the surroundings of the polyamide melt stream to the polyamide melt stream, and solidified to obtain a silica-polyamide composite filament; the silica-polyamide composite filament is twisted into a strand with 10-80 strands. root bulky thick fibers, and weave to form a continuous loop structure with a diameter of about 0.5-3cm, that is, to obtain the silica polyamide composite fiber material, wherein, in the silica polyamide composi...

Embodiment 3

[0062] This example provides a method for preparing a porous hydroxyapatite polyester composite fiber material, which is basically the same as the preparation method for the titanium dioxide polyester composite fiber material provided in Example 1, except that this example uses nanoporous The hydroxyapatite particles are used as functional nanoparticles; in addition, in step (3), the flow velocity of the nanoporous hydroxyapatite particle suspension to the polyester molten stream is 0.4m / s.

[0063]In the porous hydroxyapatite polyester composite fiber material provided in this embodiment, the plurality of porous hydroxyapatite particles are evenly embedded in the polyester material. It is measured that in the porous hydroxyapatite polyester composite fiber material, the loading capacity of nanoporous hydroxyapatite particles is 5% to 10% of the mass of the polyester material; the porous hydroxyapatite polyester composite fiber material The specific surface area is 100m 2 / g~...

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