软气动驱动在可穿戴设备中得到广泛应用,软机器人,人造肌肉,和手术机器。然而,产生高压气体在软,可控,和便携式方式仍然是一个巨大的挑战。这里,报告了一类可编程化学反应,可用于可控地产生最大压力输出接近6MPa的气体。建议使用具有可编程电流的热电材料并采用预编程的可逆化学反应物实现化学反应过程的可编程性。作为软气动致动的可编程化学反应可以作为微型气体源独立操作(〜20-100g)或与任意物理结构组合以制造独立的机器,能够在可控的环境中产生前所未有的近6兆帕的压力或约18千牛的力,便携式,沉默的方式。打破砖头的惊人示范,一块大理石,和混凝土砌块,养了一辆观光车,在人造肌肉和软辅助可穿戴设备中的成功应用说明了通过可编程化学反应进行软气动致动的巨大应用前景。该研究为超强软气动致动建立了新的范式。
Soft pneumatic actuation is widely used in wearable devices, soft robots, artificial muscles, and surgery machines. However, generating high-pressure gases in a soft, controllable, and portable way remains a substantial challenge. Here, a class of programmable chemical reactions that can be used to controllably generate gases with a maximum pressure output of nearly 6 MPa is reported. It is proposed to realize the programmability of the chemical reaction process using thermoelectric material with programmable electric current and employing preprogrammed reversible chemical reactants. The programmable chemical reactions as soft pneumatic actuation can be operated independently as miniature gas sources (∼20-100 g) or combined with arbitrary physical structures to make self-contained machines, capable of generating unprecedented pressures of nearly 6 MPa or forces of about 18 kN in a controllable, portable, and silent manner. Striking demonstrations of breaking a brick, a marble, and concrete blocks, raising a sightseeing car, and successful applications in artificial muscles and soft assistive wearables illustrate tremendous application prospects of soft pneumatic actuation via programmable chemical reactions. The study establishes a new paradigm toward ultrastrong soft pneumatic actuation.