Method for preparing carbon nanotube/glass fiber nano-micron compound powder

A carbon nanotube and composite powder technology, which is applied in the field of glass fiber-based nano-micron powder and its preparation, can solve the problems of complex process, high cost, and small output, and achieve the effect of simple process, low cost, and large output

Active Publication Date: 2016-02-17
YELLOW RIVER CONSERVANCY TECHN INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a method for preparing carbon nanotube / glass fiber nano-micron composite powder, which overcomes the shortcomings of the existing method, such as complex process, high cost and low output

Method used

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  • Method for preparing carbon nanotube/glass fiber nano-micron compound powder
  • Method for preparing carbon nanotube/glass fiber nano-micron compound powder
  • Method for preparing carbon nanotube/glass fiber nano-micron compound powder

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] Ultrasonic dispersion of 4g glass fiber in 50mL absolute ethanol was transferred to a three-necked flask and stirred; 0.2g acidified carbon nanotubes were ultrasonically dispersed in a hydroalcoholic solution (10mL water + 5mL ethanol), also transferred to a three-necked flask and heated to At 80°C, add 1.5mL hydrochloric acid solution into the flask to adjust the pH of the system to 5.0, and continue stirring for 30min. Add a certain amount of 0.1mL KH550 and 0.5mLTEOS ethanol solution 5mL dropwise to the above system, react for 6h, cool down to room temperature, filter the product with suction, wash with 20mL water and 20mL absolute ethanol, and finally put the product at 100°C Dry in an oven for 4 hours to obtain a sample.

[0037] Observed under the scanning electron microscope, as figure 1 shown. It can be seen that the carbon nanotubes are not uniformly distributed on the surface of the glass fiber, and some are distributed in an island shape, and the carbon na...

Embodiment 2

[0039] Ultrasonic dispersion of 4g glass fiber in 50mL absolute ethanol was transferred to a three-necked flask and stirred; 0.8g acidified carbon nanotubes were ultrasonically dispersed in a hydroalcoholic solution (10mL water + 5mL ethanol), also transferred to a three-necked flask and heated to At 85°C, add 2 mL of ammonium chloride aqueous solution to the flask to adjust the pH of the system to 6.0, and continue stirring for 30 min. Add 5 mL of ethanol solution of 0.25 mL KH550 and 1.25 mL LTEOS to the above system dropwise, react for 6 hours, cool down to room temperature, filter the product with suction, wash with 20 mL of water and 20 mL of absolute ethanol, and finally dry the product in an oven at 100°C Dry for 4 hours to obtain a sample.

[0040] Observed under the scanning electron microscope, as figure 2 shown. It can be seen that more carbon nanotubes are evenly distributed on the surface of the glass fiber.

Embodiment 3

[0042] Ultrasonic dispersion of 4g glass fiber in 50mL absolute ethanol was transferred to a three-necked flask and stirred; 0.2g acidified carbon nanotubes were ultrasonically dispersed in a hydroalcoholic solution (10mL water + 5mL ethanol), also transferred to a three-necked flask and heated to At 60°C, add 1 mL of ethylene glycol amine solution to the flask to adjust the pH of the system to 7.0, and continue stirring for 30 min. Add 5 mL of ethanol solution of 0.25 mL KH550 and 1.25 mL LTEOS to the above system dropwise, react for 6 hours, cool down to room temperature, filter the product with suction, wash with 20 mL of water and 20 mL of absolute ethanol, and finally dry the product in an oven at 100°C Dry for 4 hours to obtain a sample.

[0043] Observed under the scanning electron microscope, as image 3 shown. The carbon nanotubes are seriously agglomerated, and they are coated on the surface of the glass fiber together with polysilicon, so that the surface of the g...

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Abstract

The invention discloses a method for preparing carbon nanotube / glass fiber nano-micron compound powder. Pretreated glass fiber is added to an alcohol and water mixed solution of TEOS, KH550, acidified carbon nanotubes and acid or alkali at the temperature of 50-85 DEG C to have a hydrolysis and coating reaction, a product is filtered and dried, and the glass fiber based nano-micron powder is prepared. Surfaces of prepared glass fiber samples are coarse remarkably due to the fact that the carbon nanotubes are attached to the surfaces of the glass fiber through poly-silicon serving as an adhesion substrate. The samples integrate performance of the glass fiber and performance of the carbon nanotubes and are taken as filler to be added to a polymer composite material, the mechanical performance of the material is expected to be improved remarkably, and the polymer material has an antistatic property, an antibacterial property and the like. The yield of the prepared samples is large, the process is simple, the cost is low, and the method has industrial application potential and is expected to be used for preparation and industrial research of other kinds of micro-nano materials.

Description

technical field [0001] The invention belongs to the technical field of nano-micron material preparation, in particular to glass fiber-based nano-micron powder and a preparation method thereof. Background technique [0002] Micron fibers such as glass fiber, carbon fiber, aromatic fiber, etc. have light weight, high strength, and good temperature resistance, and are widely used in various fields, especially reinforced polymer composite materials. Although the fiber itself has high strength, the strength of the resulting fiber-reinforced composite is much lower than that of the fiber itself, that is, the micron-sized fiber enhances the mechanical properties of the composite material. The reason is that first, the compatibility between the fiber and the matrix resin is poor, which affects the stress transfer; second, there is usually a certain free volume or even a cavity between the fiber and the matrix resin, and the stress cannot be transferred here; third, the traditional m...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03C25/44
Inventor 徐翔民李宾杰谢昕张予东李庆华
Owner YELLOW RIVER CONSERVANCY TECHN INST
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