the progress of science and technology has turned all kinds of human fantasies into reality, and the whimsical myth of "creating man" in ancient times will be realized in the hands of contemporary scientists. "Humanoid robot" made of artificial muscle is coming to us leisurely.

scientists found that nonmetallic materials can move under the action of electric current, so the idea of making artificial muscles came into being. Studies have proved that polymer materials can stretch and bend automatically by current stimulation, which can be used to make artificial muscles. This kind of artificial muscle is made of adhesive plastic, which is a muscle-like complex made of tubular conductive plastic, and a special liquid is injected into the tube, and the conductive polymer releases ions in the solution, which is stimulated by current to complete the expansion and contraction. By controlling the current and adjusting the number of ions, its scalability can be effectively changed. On the contrary, electricity can also be generated by changing the shape of the complex.

Artificial muscle has the function of human muscle. In artificial muscle, a tubular conductive plastic with a diameter of 1.25mm can bear 21g. With the same volume, artificial muscle is 11 times stronger than human muscle. Traditional engine-driven robots, except joints, have no movable joints in their limbs, so their energy is naturally stretched. If there is artificial muscle, the robot's limbs will be more developed, which can convert 71% of molecular energy into physical energy, and its power is far greater than that of traditional engine robots. In recent years, a biological robot named Birod has come out, which can load many times its own weight. Scientists are developing artificial muscles for future soldiers. Once this artificial muscle is put into gloves, uniforms and military boots, soldiers will have superhuman strength, lifting weights and jumping over high walls.

Based on the principle that artificial muscles can generate electricity, scientists are developing a kind of "heel" generator, that is, artificial muscles are installed on the heels of military boots, which can generate electricity through walking, running and other sports. In the future, artificial muscles will be used in all manufacturing industries that need small electric engines.

Artificial muscles are flexible and soft, and can also be used to make medical catheters and snake-shaped robots that can display their talents in disaster relief. At present, there has been a robot fish made of artificial muscles. Its swimming posture in the water is no different from that of a real fish, and its "endurance" can be maintained for half a year.

References: Baidu Library

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