How can carbon nanotube absorbing materials improve the dispersion of carbon nanotubes in the matrix to avoid agglomeration?

Hello everyone, today we bring you a technical article about carbon nanotube absorbing materials. Carbon nanotubes have attracted widespread attention due to their unique structure and superior electrical, optical, chemical, and thermodynamic properties. However, the agglomeration phenomenon of carbon nanotubes in the matrix is an urgent problem that needs to be solved. This article will explore how to improve the dispersibility of carbon nanotubes in the matrix to avoid agglomeration, and specifically introduce the advanced research institute (Shenzhen) Technology Co., LtdResearch Platinum Brand Carbon nanotube Absorbing Materials.

（1） Reasons for aggregation of carbon nanotubes

The aggregation phenomenon of carbon nanotubes is mainly caused by the following reasons:

1. Van der Waals force: There is a strong van der Waals force between carbon nanotubes, which makes them prone to entanglement or aggregation into bundles.
2. Length to diameter ratio: Carbon nanotubes are fibrous one-dimensional nanomaterials with a large length to diameter ratio, making them easy to entangle and bond together, forming large aggregates.
3. Nanoscale effect: When the particle size reaches the nanoscale, its agglomeration effect significantly increases, and the mutual attraction of particles within the agglomeration also significantly increases, making dispersion more difficult.

（2） Methods to improve the dispersibility of carbon nanotubes

In order to improve the dispersibility of carbon nanotubes in the matrix, researchers have adopted various methods, including mechanical stirring and grinding, high-energy ball milling, ultrasonic treatment, surface chemical covalent modification dispersion, and non covalent modification dispersion of surfactants.

1. Mechanical stirring and grinding method: This method can disconnect carbon nanotubes from defects through physical action, shorten the carbon nanotubes, and remove the entangled and bonded state of long fibers. However, mechanical stirring and grinding can only macroscopically mix carbon nanotube aggregates with the matrix powder, and are powerless to disperse the carbon nanotube aggregates themselves.
2. High energy ball milling method: Ball milling can crush carbon nanotubes, disperse carbon nanotube aggregates, but it can also make carbon nanotubes more densely bonded together.
3. Ultrasonic treatment method: Ultrasonic treatment also has this characteristic, which can overcome the strong adsorption force of aggregates, but may cause damage to the structure of carbon nanotubes.
4. Surface chemical covalent modification dispersion method: Through chemical modification, functional groups can be introduced on the surface of carbon nanotubes to enhance their compatibility with the matrix, thereby improving dispersion.
5. Non covalent modification and dispersion method of surfactants: Adding surfactants and acid-base washing methods can break and disperse the flocculent carbon nanotubes on the surface of aggregates, but the effect is not significant for tightly entangled carbon nanotubes.

（3） Advantages of Research Platinum Brand Carbon nanotube Absorbing Materials

Advanced Institute (Shenzhen) Technology Co., LtdResearch Platinum Brand Carbon nanotube Absorbing MaterialsIt has significant advantages in improving the dispersibility of carbon nanotubes. Here are several main features of this product:

1. Efficient dispersion technology:
   • The Yanbo brand carbon nanotube absorbing material adopts advanced dispersion technology, which can effectively break the long fiber entanglement and bonding state of carbon nanotubes, overcome the strong adsorption force of aggregates, and stabilize the dispersion state of carbon nanotubes.
   • Experimental data shows that the dispersibility of the research platinum brand carbon nanotube absorbing material in the matrix has been improved by more than 30%, significantly reducing agglomeration phenomena.
2. Superior absorption performance:
   • The research platinum brand carbon nanotube absorbing material has excellent absorbing performance, mainly due to its unique structure and physical properties. By reasonably adjusting the size, morphology, and chemical composition of materials, precise control of electromagnetic wave absorption performance can be achieved.
   • The experimental results show that the reflectivity of the Yanbo brand carbon nanotube absorbing material in the X-band is below -20 dB, demonstrating excellent absorbing performance.
3. Wide range of application areas:
   • The research platinum brand carbon nanotube absorbing materials have a wide range of applications in the military, communication, and electronic equipment fields. For example, in the military field, it can be used to improve the electromagnetic protection capability of equipment; In the field of communication, it can be used to reduce signal interference and improve communication quality; In the field of electronic devices, it can be used to absorb electromagnetic radiation and protect the health of users.

In short, improving the dispersibility of carbon nanotubes in the matrix is the key to avoiding agglomeration. By adopting advanced dispersion techniques and methods, the dispersibility of carbon nanotubes can be significantly improved, thereby fully leveraging their superior performance. The platinum brand carbon nanotube absorbing material developed by Advanced Institute (Shenzhen) Technology Co., Ltd. has shown significant advantages in this field and deserves the attention and application of researchers and engineers.
The above data is for reference only, and specific performance may vary due to production processes and product specifications.