At present, smart clothing began to appear in our lives. If we want to make garments that can be as technological as real electronic products, but also to make their circuits not rigid as branches and bound our actions, then we must make the circuit both sensitive and resilient. Now that this kind of circuit material looks like it has already been found, the research team led by Bao Zhennan, a Chinese professor at Stanford University in the United States, recently published a report in the new issue of the American Journal of Scientific Progress that they have developed a conductive and tensile pole. Good polymer materials can be used for stretchable plastic electrodes. This flexible electrode can also be used as a wearable electronic device.
The Baozhannan team has been working on flexible electrodes for a long time. Flexible electrodes are electronic technologies that make electronic devices on flexible or ductile plastic or thin metal substrates. Bao Zhenan said that existing electronic devices including electrodes and materials are all rigid. If they are used to measure central nervous currents and cardiac currents, implanting them in the brain or heart may damage the nerve or heart tissue. Therefore, electrodes that come into contact with nerves need to be as soft as skin, which is an important issue that flexible electronic applications need to solve.
It is well known that plastics are insulators. If you use plastics directly as a substrate, the conductivity will become poor. "We think that if we add insulation, it will get very poor conductivity, especially when we add more plastic," said Baozhan Nan. “However, we have discovered a flexible polymer that is not only a very thin, nearly transparent material with 96% light transmission, but in fact it also has high conductivity, which is the highest transparency and electrode value reported. One of the materials is best if it is applied to the flexible electrode substrate."
In order to increase the toughness and mechanical properties of the material, the researchers used a molecular additive similar to a soap surfactant that changed the interaction between the molecules of the material. Bao Zhenan explained that the shape of the small particles formed by the original molecules has apparently changed into the shape of a fishing net. The shape of the fishing net makes the polymer material easier to stretch. After testing, the new material can still maintain high conductivity when it is stretched to twice its original length.
Bao Zhenan finally stated that after finding the material for stretchable electrodes, the next step was to verify whether the material could be implanted in the organism and whether it would cause damage to the organism.
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