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Carbon Nanotube in Preparation of Special Polymer Film

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Some nanomaterials for Thermochromic Application Some nanomaterials for Thermochromic Application

Thermochromism refers to the phenomenon where a material undergoes color changes under temperature changes. This change is usually caused by changes in the electronic or molecular structure of the material. Its application principle mainly involves t...

Carbon Nanotube in Preparation of Special Polymer Film

  • September 12,2018.
The introduction of inorganic components in the polymer film can not only improve the pore structure and distribution of the modified film, enhance the mechanical properties and thermal stability, but also improve the membrane permeability and selectivity. CNTs are a kind of novel materials with unique physicochemical properties, mechanical properties and thermal properties. Because of their nanometer size, hollow cylindrical structure and porosity, carbon nanotubes (CNTs) have potential applications in molecular separation.

In recent years, the performance of polymer materials are for a large number of basic research and applied research. The structure of the polymer changes in the interaction with the nanoparticles, resulting in a significant change in the physical properties of these materials, for example, changes in the molecular diffusion coefficient. This material is promising in the modernization of thin-film technology for liquid-gas separation.

Researchers from Russia have developed polymer modification methods by adding carbon nanotubes. "We sought to determine the formation conditions and the necessary structural parameters of the carbon nanotubes in the polymer to ensure a significant increase in the permeability of the membrane to certain gases and liquids," said Ph.D.in Russia. "In any type of Polymer membranes, and the geometrical characteristics of nanotube films and clusters.We fabricate and study so-called osmotic membranes through complex equipment, which is superior to most of the existing polymers in transport properties."

The addition of 1 wt% carbon nanotubes to the polymer (vinyl silane) resulted in a 5-fold increase in nitrogen permeability, a 2-fold increase in oxygen permeability, and a rise in methane and propane permeabilities 4 times and 15 times. This material is widely used, such as natural gas separation, removal of CO2 from the air, for the organic mixture of nanofiltration membrane. At present, researchers are considering the mixed membrane synthesis method applied to different types of polymers.

To sum up, with more and more researches, Carbon Nanotubes with great properties are widely used in various field.



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