Stretchable flexible functional conductor
A conductor and function technology, applied in the field of resistance sensing materials, can solve the problems of poor compatibility, failure, easy to overflow conductance, etc., and achieve the effect of broad application prospects and excellent conductive properties.
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Embodiment 1
[0033] A stretchable flexible functional conductor is as follows:
[0034] The single-channel liquid metal fibers prepared from silicone rubber had an inner diameter of 700 μm and a fiber length of 40 mm.
[0035] First, a liquid gallium-indium eutectic alloy (gallium:indium=3:2, g / g) was injected into the flow channel, and both ends were connected to electrodes and potted with epoxy resin.
[0036] The prepared conductor has a resistance of about 0.35Ω, and the single-channel liquid metal conductor can be directly stretched. Due to the good elasticity of silicone rubber, during the stretching-recovery process, the conductor resistance changes in response, such as image 3 shown. When the conductor is directly stretched by hand, the value of the relative resistance is different at different stretching amplitudes, and the resistance returns to the corresponding size during the recovery process of the conductor. The results show that the liquid metal flow channel has obvious...
Embodiment 2
[0038] A liquid metal conductor with a double circular flow channel structure made of polyurethane, the inner diameter of the flow channel is 1 mm, and the length is 40 mm. g / g) is injected into the flow channel, and both ends are connected to electrodes and potted with epoxy resin.
[0039] The prepared conductor has a resistance of about 0.20Ω, and the dual-flow channel structure has good resistance stretch-recovery properties, making it an important application prospect in high-sensitivity and high-precision limb movement monitoring. like Figure 4 As shown, when it is used to detect the movement of the human neck, the human head rotates 90 degrees and then recovers. It can be clearly observed that the relative resistance of the conductor increases with the rotation of the head, and the relative resistance returns to the initial state when the head recovers. . Therefore, the dual-channel liquid metal flexible function has obvious resistance deformation-recovery response...
Embodiment 3
[0041] The inner diameter is 200 nanometers, the wall thickness is 100 nanometers, and the length is 40 mm. The ultra-fine circular hollow channel structure silicone rubber fiber is injected into the non-toxic and safe liquid metal gallium. Preparation of functional flexible fibers.
[0042] Conductor resistivity as low as 2.16×10 -6 Ω·m, reaching the conductivity of gold and silver metals of the same level. Therefore, when a very low voltage of 0.1 V is applied, there is a response characteristic, which can effectively ensure the life safety of the human body (the voltage exceeding 36 V is harmful to the human body), so that it can be implanted in the human body and its artificial nerve fibers. It has important application prospects. Figure 5 In order to use the conductor as a human motion detection sensor to detect the resistance response of the wrist under different bending angles, a detection voltage of 0.1 V is applied. Figure 4 The results show that the flexible fu...
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