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IIT-M: IIT-M shows a new method to reduce vibration during car trips

CHENNAI: The Indian Institute of Technology in Madras (IIT-M) said on Monday that its researchers working in the field of ‘carbon nanotube compounds’ have yielded promising results that can go a long way in reducing vibration during car travel.
“The outstanding properties of carbon nanotubes (CNTs), nanometer-sized molecules made from rolled sheets of carbon atoms, can greatly improve the mechanical, thermal, and electrical properties of polymers,” Prathap Haridoss of the Engineering Department Metallurgical and Materials. IIT Madras said in a statement.
According to the research team, polymer compounds, materials formed by combining polymers with various additives, have long been used in recorded history for various purposes.
Many polymers, loaded with various types of reinforcing fillers, are the foundation of everyday items, from auto parts to construction components.
Their study, published in the international peer-reviewed journal Nanoscale Advances, revealed that the research team is working to develop and test interesting polymer compounds.
His research will lead to a better understanding of vibration damping mechanisms in these types of polymers, which, in turn, would lead to better vibration damper designs in automobiles.
“Of the numerous attractive properties of CNT polymer compounds, their vibration damping properties make them useful in the aerospace, automotive and construction industries,” said Haridoss.
“Carbon nanotube reinforced polymers combine the viscoelastic properties of the polymer with the interfacial properties of CNT, resulting in better vibration damping,” he added.
Thus, CNT-loaded polymers can give you a smoother ride in your car, but the team decided to find out why.
They used MWCNT synthesized by different techniques and loaded them into epoxy polymers. MWCTs are made of concentric carbon tubes, and sliding between layers is believed to dampen vibrations. Naturally, the effectiveness of the buffer will depend on the nature of the MWCNT.
“To visualize the damping effects of the two types of MWCNT, the researchers performed computational simulation studies,” said Haridoss.
“Our simulation studies have shown without a doubt that the vibration damping properties in MWCNTs arise from the interaction between the atoms that make up the inner and outer tubes rather than the energy loss due to friction between tubes.

Times of India