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Method for preparing nanometer nitrified beta-cyclodextrin fiber by electrostatic spinning

A technology of electrospinning and cyclodextrin, which is applied to the chemical characteristics of fibers, attacking equipment, textiles and papermaking, etc., can solve the problem that the large specific surface area, high surface energy and high surface activity of nanoparticles cannot be fully utilized, and the actual use effect of nanoparticles Problems such as lack of improvement and large surface energy of nanoparticles can achieve the effects of short preparation cycle, broad application and simple operation process

Inactive Publication Date: 2013-02-13
SICHUAN NEW MATERIAL RES CENT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It is difficult for a single nano-powder to be uniformly dispersed in other components, and it is impossible to fully utilize the advantages of large specific surface, high surface energy, and high surface activity of nanoparticles.
The main reason why nanoparticles cannot be uniformly dispersed is that the surface energy of nanoparticles is very large, and the particles are easy to agglomerate, and conventional processes and mixing equipment cannot make them evenly mixed.
The actual use effect of nanoparticles is not improved

Method used

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  • Method for preparing nanometer nitrified beta-cyclodextrin fiber by electrostatic spinning

Examples

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Embodiment 1

[0024] Such as figure 1 as shown, figure 1 A schematic diagram of the structure of the electrospinning device used in this example is shown, the electrospinning device is as figure 1 As shown, it includes: a syringe 1, a receiver 6, an injection needle 3 is arranged at the lower end of the syringe, and a high-voltage power supply 5 is arranged between the syringe 1 and the receiver to provide high-voltage static electricity; when in use, the electrospinning solution 2 is loaded in the syringe 1, the electrospinning solution is injected through the injection needle 3 of the syringe 1, and the spinning 4 is formed under the action of high-voltage electrostatic, and the receiver 6 receives the spinning 4. The method for preparing nano-nitrated β-cyclodextrin fibers by electrospinning in this embodiment includes the following steps: (1) preparing an electrospinning solution: at room temperature, mix nitrated β-cyclodextrins with a mixed solvent to prepare An electrospinning solu...

Embodiment 2

[0029] The method for preparing nano-nitrated β-cyclodextrin fibers by electrospinning in this embodiment includes the following steps: (1) preparing an electrospinning solution: at room temperature, add nitrated β-cyclodextrins to acetone and N, N -Dimethylformamide acetone and N,N-dimethylacetamide can be prepared in a volume ratio of 4:0.5-4:2. The specific embodiment is that acetone and N,N-dimethylacetamide are 2:1 by volume, in the mixed solvent of composition, prepare 20 milliliters of concentrations and be the electrospinning solution of 20%, in the electrospinning solution include Nanoparticles: The mass ratio of nitrated β-cyclodextrin to nanoparticles is 10:0-7:3, which can better improve the propellant combustion performance. Nano particles include: nano metal particles, nano metal oxide particles. Nano metal particles include: one or more of magnesium, aluminum, silicon, copper, beryllium and boron. Nano metal oxide particles include: ferric oxide, iron oxide, t...

Embodiment 3

[0034] The method for preparing nano-nitrated β-cyclodextrin fibers by electrospinning in this embodiment includes the following steps: (1) preparing an electrospinning solution: at room temperature, add nitrated β-cyclodextrins to acetone and N, N -Dimethylformamide acetone and N,N-dimethylacetamide can be prepared in a volume ratio of 4:0.5-4:2. The specific embodiment is that acetone and N,N-dimethylacetamide are 2:1 by volume, in the mixed solvent of composition, prepare 20 milliliters of concentrations and be the electrospinning solution of 20%, in the electrospinning solution include Nanoparticles; the mass ratio of nitrated β-cyclodextrin to nanoparticles is 10:0-7:3, which can better improve the combustion performance of the propellant. Nano particles include: nano metal particles, nano metal oxide particles. Nano metal particles include: one or more of magnesium, aluminum, silicon, copper, beryllium and boron. Nano metal oxide particles include: ferric oxide, iron o...

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Abstract

The invention discloses a method for preparing a nanometer nitrified beta-cyclodextrin fiber by electrostatic spinning. The method for preparing the nanometer nitrified beta-cyclodextrin fiber by electrostatic spinning comprises the steps of: mixing nitrified beta-cyclodextrin with a mixed solvent to prepare an electrostatic spinning solution containing 5%-50% by mass of the nitrified beta-cyclodextrin; adjusting a voltage range from 10 KV to 35 KV, a spinning temperature range from 20 DEG C to 30 DEG C, a speed range of a liquid discharged by an electrostatic spinning device from 0.5 ml / h to 4 ml / h, and a reception distance range from 10 cm to 30 cm by adopting an electrostatic spinning technology; and preparing the nanometer nitrified beta-cyclodextrin fiber under the action of an electrostatic field. The method for preparing the nanometer nitrified beta-cyclodextrin fiber by electrostatic spinning, disclosed by the invention, has the advantages of a small diameter, uniform distribution, very wide application foreground in the aspects of improving mechanical property, combustion performance and the like of propellants, and the like.

Description

technical field [0001] The invention relates to a method for preparing energetic materials, in particular to a method for preparing nanometer nitrated β-cyclodextrin fibers by electrospinning technology. Background technique [0002] In recent years, electrospinning technology has attracted more and more attention as a simple and effective method to effectively obtain ultrafine fibers with diameters in the range of tens to hundreds of nanometers, and has attracted widespread attention of scientific researchers. The electrospinning device includes a syringe and needle, a high-voltage power supply, and a receiver. The syringe acts as a polymer fluid reservoir and controls the polymer fluid flow rate. The high-voltage power supply uses a DC high-voltage electrostatic generator of 10-100 kV to generate a high-voltage electrostatic field. The receiver can adopt different shapes according to requirements, such as metal cylinder, flat plate or grid, etc. The basic process of ele...

Claims

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Application Information

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IPC IPC(8): D01F9/00D01F1/10C06D5/00
Inventor 沈金朋杨光成谯志强李瑞王军
Owner SICHUAN NEW MATERIAL RES CENT
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