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bio2000
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I am looking for a polymer that can be manipulated and that expands after applying pressure between the fingers, as a result of piezoelectric effect.
The piezoelectric effect in polymers refers to the ability of certain polymers to generate an electric charge when subjected to mechanical stress or pressure. This phenomenon is due to the alignment of electric dipoles within the polymer, resulting in a separation of positive and negative charges.
Polymers with piezoelectric effect are used in various applications such as sensors, actuators, energy harvesting devices, and biomedical devices. They are also used in the production of piezoelectric films and fibers, which can be integrated into electronic devices and structures for improved performance.
One of the main advantages of using polymers with piezoelectric effect is their flexibility and lightweight nature, making them suitable for use in flexible and wearable electronics. They also have a low cost of production compared to other piezoelectric materials such as ceramics. Additionally, they have a high sensitivity and can generate relatively high voltages and currents when subjected to mechanical stress.
One limitation of polymers with piezoelectric effect is their relatively low piezoelectric coefficient, which means they produce a weaker electric charge compared to other materials. They also have a lower durability and stability compared to ceramics, making them less suitable for long-term use in harsh environments.
The piezoelectric effect in polymers can be enhanced by incorporating fillers or additives such as carbon nanotubes or graphene, which can increase the mechanical strength and piezoelectric properties of the polymer. Additionally, the orientation and alignment of polymer chains can also be controlled during processing to enhance the piezoelectric effect.