Method for preparing carbon microsphere by utilizing waste cotton fibre

Abstract

The invention provides a method for preparing a carbon microsphere by utilizing waste cotton fibre. The waste cotton fibre is taken as raw material, deionized water is taken as reaction medium, and washing, disinfecting, cutting into strips, fading, soaking, dispersing, heating, pressurizing and stirring in a reactor, product washing, drying and grinding are carried out, thus the cotton fibre carbon microsphere the surface of which contains an active group is obtained. The technological process is advanced, no acid-base catalyst is used, no environmental pollution is produced, the cotton fibre carbon microsphere has stable physical and chemical performances, multiple groups can be directly grafted on the surface of the carbon microsphere without modification, and functional fiber can be prepared when the carbon microsphere is blended with polyester fibre, polyphenylene sulfide fibre and polypropylene fibre, thus the method provided by the invention is perfect for preparing the active carbon microsphere by utilizing the waste cotton fibre, and an advanced method is provided for recycling the waste cotton fibre.

Description

technical field [0001] The invention belongs to a method for preparing carbon microspheres by using waste cotton fibers, and belongs to the technical field of carbon material preparation and application. Background technique [0002] Carbon materials have high application value and many types. Carbon microspheres are one of the most widely used and important carbon materials. Carbon microspheres have good chemical stability, thermal stability, adsorption performance and excellent electrical conductivity and Thermal conductivity; it can be applied in many fields such as lithium-ion electrode anode materials, high-strength carbon materials, catalyst supports, gas adsorbents, nano-devices and additives for functional fiber preparation. [0003] At present, there are many methods for the preparation of carbon microspheres. Usually, pitch, coal, and acetylene are used as raw materials, and carbon microspheres with different specifications, structures, and properties are prepared ...

AI Technical Summary

Problems solved by technology

[0003] At present, there are many methods for the preparation of carbon microspheres. Usually, pitch, coal, and acetylene are used as raw materials, and carbon microspheres with different specifications, structures, and properties are prepared by high-temperature roasting, vapor deposition, and doping catalysts; some carbon Microspheres can be hollow or solid, and can be micron or nanoscale, and are used in different technical fields. However, the carbon microspheres prepared by these methods have a single structural component, and the surface of the carbon microspheres must be grafted and modified to make them Only when the surface contains a large number of active groups can it be applied in high value-added fields

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