The Benefits of Functionalized Carbon Nanotubes | MWCNTs OH Functionalized

The Benefits of Functionalized Carbon Nanotubes
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The study of functionalized carbon nanotubes is of very important significance in the dispersion of carbon nanotubes, the compatibility of composite materials, interfacial strength, the glass transition temperature, compatibility with biological materials, and other aspects.

For example, the composition of functional multi-walled tubes and polymer materials has better interfacial bonding strength and better dispersion, also adding the amount of functional multi-walled tubes material could be reduced a lot. Therefore, functionalized carbon nanotubes can be better fully to reveal carbon nanotubes outstanding properties.

Furthermore, functionalized carbon nanotubes, due to containing function group, the next step for the modification of carbon nanotubes is of great convenience role. The performance of Non-functionalized carbon nanotubes on the surface is relatively stable and is somewhat difficult to directly modify on their surface . However, the functionalized carbon nanotube, as if inserted branch on the carbon nanotubes surface , greatly increase the carbon nanotube surface activity, more easier links to other needs groups modified.

In the biological field, functionalized carbon nanotubes have better biocompatibility and stronger effect on cell viability.

Frequently asked questions:

1)   What are –OH and –COOH MWNTs?
The -OH and -COOH MWCNTs are hydroxyl MWCNTs and Carboxyl MWCNTs.

2)   How do you perform purification before surface modification for –OH and –COOH MWNTs?
We use acid to purify the MWCNTs.

3)   How do you perform surface modification?
We will use KMnO4 to perform surface modification.

4) What are benefits of the –OH and –COOH MWNTs?

functionalized carbon nanotubes have better interfacial bonding strength;
functionalized carbon nanotubes have better dispersion;
functionalized carbon nanotubes have better fully to reveal carbon nanotubes outstanding properties;
functionalized carbon nanotubes have better biocompatibility;
functionalized carbon nanotubes have stronger effect on cell viability;
functionalized carbon nanotubes have better flexibility;
functionalized carbon nanotubes have high strength carbon nanotubes;
functionalized carbon nanotubes could be used in intumescent fire retardant coating to delay in the heat transfer to the substrate to prevent the body temperature from rising and the body strength from decreasing;
functionalized carbon nanotubes have better surface activity;
functionalized carbon nanotubes are more easier links to other needs groups modified...

5) How to measure –OH and –COOH MWNTs?

As the carbon nanotubes are all black, the absorption of light is particularly strong, therefore, in the infrared spectrometer to do infrared detection time is more difficult to detect -COOH or -OH characteristic peaks. In this regard, the x-ray photoelectron spectroscopy (XPS) and Boehm titration method combined with the carbon nanotubes connected to the hydroxyl or carboxyl for qualitative and quantitative analysis. XPS qualitative analysis, Boehm quantitative analysis

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