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Electrostatic spinning micro-nanofiber/clay aerogel composite material and preparation method thereof

A technology of micro-nano fiber and composite material, which is applied in the field of electrospinning micro-nano fiber/clay airgel composite material and its preparation, can solve problems such as environmental impact, and achieve simple preparation process, low thermal conductivity, and good biocompatibility sex and degradability effects

Inactive Publication Date: 2017-12-15
GUANGZHOU UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This patent is used to prepare SiO 2 Airgel, the preparation process requires the use of organic solvents such as ethanol and organic modified solvents such as trimethylchlorosilane, which has a certain impact on the environment

Method used

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  • Electrostatic spinning micro-nanofiber/clay aerogel composite material and preparation method thereof

Examples

Experimental program
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Effect test

example 1

[0038] In this example, the airgel composite material containing electrospun micro-nano fibers and clay is prepared by using polyvinyl alcohol as an adhesive aid, and electrospun micro-nano fibers and montmorillonite as raw materials. The preparation steps are as follows:

[0039] (1) Add PVDF (polyvinylidene fluoride) particles to DMF (N,N-dimethylformamide solvent), wherein the mass concentration of PVDF is 25%, and stir in a constant temperature water bath at 120°C until PVDF is completely dissolved;

[0040] (2) Using an electrospinning device, the spinning process parameters are: injection speed 0.03-0.04mm / min, voltage 12kV, drum receiver distance 15cm, drum running line speed 4m / min, injector lateral movement speed 12cm / min;

[0041] (3) Inject the mixed solution of PVDF and DMF into the syringe, fix it on the metering pump for spinning, and obtain the electrospun micro-nano fiber and accumulate the electrospun micro-nano fiber to form an electrospun nano-fiber felt, and...

example 2

[0049] In this example, the electrospun micro-nanofiber / clay airgel composite material is prepared by using pectin as an adhesive aid, and the electrospun micro-nanofiber and montmorillonite airgel are composited. The preparation steps are as follows:

[0050] (1) Add PVDF (polyvinylidene fluoride) particles to DMF (N,N-dimethylformamide solvent), wherein the mass concentration of PVDF is 25%, and stir in a constant temperature water bath at 120°C until PVDF is completely dissolved;

[0051] (2) Using an electrospinning device, the spinning process parameters are: injection speed 0.03-0.04mm / min, voltage 12kV, drum receiver distance 15cm, drum running line speed 4m / min, injector lateral movement speed 12cm / min;

[0052] (3) Inject the mixed solution of PVDF and DMF into the syringe, fix it on the metering pump for spinning, and obtain the electrospun micro-nano fiber and accumulate the electrospun micro-nano fiber to form an electrospun nano-fiber felt, and then remove it from ...

example 3

[0060] In this example, the electrospun micro-nanofiber / clay airgel composite material is prepared by using casein as an adhesion aid, and the electrospun micro-nanofiber and montmorillonite airgel are composited. The preparation steps are as follows:

[0061] (1) Add PVDF (polyvinylidene fluoride) particles to DMF (N,N-dimethylformamide solvent), wherein the mass concentration of PVDF is 25%, and stir in a constant temperature water bath at 120°C until PVDF is completely dissolved;

[0062] (2) Using an electrospinning device, the spinning process parameters are: injection speed 0.03-0.04mm / min, voltage 12kV, drum receiver distance 15cm, drum running line speed 4m / min, injector lateral movement speed 12cm / min;

[0063] (3) Inject the mixed solution of PVDF and DMF into the syringe, fix it on the metering pump for spinning, and obtain the electrospun micro-nano fiber and accumulate the electrospun micro-nano fiber to form an electrospun nano-fiber felt, and then remove it from ...

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Abstract

The invention provides an electrostatic spinning micro-nanofiber / clay aerogel composite material and a preparation method thereof. Electrostatic spinning micro-nanofiber is filled in clay / clay additive sol; the electrostatic spinning micro-nanofiber / clay aerogel composite material is prepared through low-temperature freezing drying. The clay aerogel is enhanced by the electrostatic spinning micro-nanofiber in the micro-nano level, so that the composite material has good interface bonding performance and structure completeness; the mechanical property is obviously improved; the weight is light; the environment is protected; the preparation method uses low-temperature freezing drying; the steps of aging, replacement, modification and the like required by the ordinary silicon dioxide aerogel preparation process are not needed; the process is simple; the environment is protected; wide application prospects are realized in the aspects of building, industry, aerospace, heat insulation garments and the like.

Description

technical field [0001] The invention belongs to the field of material technology, and in particular relates to an electrospun micro-nano fiber / clay airgel composite material and a preparation method thereof. Background technique [0002] Airgel is an amorphous solid material with a unique three-dimensional network porous structure formed by cross-linking molecules or polymers. Its unique structure enables it to exhibit excellent properties such as high porosity, high specific surface area, low density, and low thermal conductivity, which has attracted widespread attention in many fields such as aerospace, industry, and construction. With the development of airgel materials and preparation technology, airgel materials are no longer limited to SiO 2 Airgel, using clay as raw material, the clay airgel prepared by sol and low-temperature vacuum drying process has good biocompatibility and degradability, the preparation process is simple, and it is environmentally friendly and p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B26/04C04B26/02C04B38/00D01F6/08D01F6/32C04B111/40
CPCC04B26/04C04B26/02C04B38/0045C04B2111/40C04B2201/32C04B2201/50D01F6/08D01F6/32C04B14/10C04B16/0616
Inventor 吴会军钟支葵杨丽修黄公胜徐涛
Owner GUANGZHOU UNIVERSITY
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