English
简体中文
Русский
إنجليزي
AUGUST 30,2024
Fabricating bio-inspired high impact resistance carbon nanotube network films for multi-protection under an extreme environment
2024-08-30 08:57
Researchers found that the bio-inspired carbon nanotube network exhibits significantly higher toughness and impact resistance compared to conventional protective materials like steel and Kevlar.
The fabrication of light-weight, highly impact-resistant, and energy-absorbent materials is urgently demanded in many facets of the society from body armor to aerospace engineering, especially under an extreme environment. Carbon nanotubes (CNTs), one of the strongest and toughest materials ever found, also have good conductivity, chemical stability, and thermal stability, etc, making them a competitive candidate as building blocks to help achieve the above goal.
In the work, a kind of CNT network was prepared by using chlorosulfonic acid (CSA) to release the internal stress of super-aligned carbon nanotube films (SA-CNTF) and dendritic polyamide amine (PAMAM) to further introduce multiple hydrogen bonds and interlocking structures.
The fabricated bioinspired carbon nanotube network films (
PAMAM@C-CNTF
) have a high toughness of 45.97 MJ/m3, showing an increase of 420% compared to neat SA-CNTF.
More importantly, the anti-impact performance of the films (e.g., with a maximum specific energy absorption of 1.40 MJ/kg under 80–100 m/s projectile impact) is superior to that of conventional protective materials from steel and Kevlar fiber, and also exceeds that of any other reported carbon-based materials.
The hierarchical energy dissipation mechanism was further revealed through experiment and simulation.
Additional functions including intelligent heating/anti-icing, ultraviolet protection, as well as electromagnetic interference shielding properties make these network films have great potential in practical multi-protection applications, especially under an extreme environment.
Nano Research, Volume 17, pages 7793–7802, (2024)
Disclaimer：The Institute of Plastic Research makes every effort to ensure the accuracy
of the information, reliability of the data, and objectivity and fairness of the content and viewpoints
described herein. However, we do not guarantee the accuracy and completeness of the information. Any losses or
legal consequences resulting from actions taken based on this information are the sole responsibility of the
individual undertaking them.
More Hzinfo
- CHINACOAT 2024 | Li Peikun from Xinhui Chemical and Jiahui Technology: Innovation Leads the Way, Facing the "Intense Competition" in the Coatings Ind
- They will embrace the challenges of the global market with a more open attitude.
-
2025-01-17
- Jointly "Coating" a Bright Future! Xinhui Chemical and Jiahui Technology Stun at CHINACOAT 2024
- They will contribute their own strength to the prosperity and development of the industry and jointly move towards a better future!
-
2025-01-17
- Recommended products:SuoShi Chemical/Source Chemical outdoor matting agent based on durable acrylic resinT-550
- T-550 is a glyeidyl containing solid acrylie resin designed for applying in low acid value saturated carboxyl polyester powder coatings system as hardener using compatibility difference to achieve
-
2025-01-16
Media Contact
Luke
Head of Info Center
