Method for preparing carbon nanometer tube composites by sol and gel method

Abstract

Production of carbon nanometer tube composite by sol-gel method is carried out by surface modifying the carbon nanometer tube to obtain acidified carbon nanometer tube by strong acid oxide, reacting acidified carbon nanometer tube with acylating agent to prepare active carbon nanometer tube containing acyl halide perssad, sesquioxosilane with azyl, chlorine, and epoxy etc. active perssad as end group reacting with acidified or acyl halide perssad contained carbon nanometer tube, and obtaining sesquioxosilane stem grafted carbon nanometer tube. Its advantages include good solubility in organic solvent, good dispersiveness to plastic and coating, good compatibility for high performance membrane material, high strength material and wave absorbing material.

Description

technical field

[0001] The invention relates to a method for preparing a carbon nanotube composite by a sol-gel method, and belongs to the technical field of composite material preparation. Background technique

[0002] Because carbon nanotubes have a series of excellent properties such as high strength and high electrical conductivity, they are very suitable as modifiers for various materials, especially polymer materials, but carbon nanotubes are insoluble and have poor compatibility with most materials. Researchers have been exploring ways to improve the solubility and compatibility of carbon nanotubes with materials.

[0003] At present, there are three methods commonly used at home and abroad: online polymerization in the presence of carbon nanotubes; grafting organic matter or polymers on the surface of carbon nanotubes, and then blending with the polymer matrix; grafting on the surface of carbon nanotubes Polymerizable monomers are then copolym...