A novel composite with excellent sensing property and safeguarding performance is fabricated by impregnating the carbon black (CB)/shear thickening gel (STG) hybrid into polyurethane sponge (PUS). This STG-CB/PUS composite presents typical shear thickening characteristic, as the storage modulus (G′) rises from 0.21 MPa to 1.52 MPa when shear frequency increases from 0.1 Hz to 100 Hz. Under external strain, the conductivity of STG-CB/PUS varies quickly, thus it can be applied as strain sensors. During the impact, STG-CB/PUS can detect impact stimuli (0.147–1450 mJ) and decrease attacking force by 63% simultaneously. Additionally, it is found that the ‘BO cross bond’ is responded for the shear thickening property and the structure-dependent electrical behaviors contribute to the sensing activity. Finally, a STG-CB/PUS enhanced kneepad is prepared. It possesses a reliable safeguarding performance by reducing 44% attacking force and can effectively trace human body motions such as walking, running and jumping.

通过将炭黑（CB）/剪切增稠凝胶（STG）杂化物浸渍到聚氨酯海绵（PUS）中，制得了一种具有优异传感性能和防护性能的新型复合材料。这种STG-CB / PUS复合材料具有典型的剪切增稠特性，当剪切频率从0.1 Hz增加到100 Hz时，储能模量（G'）从0.21 MPa增加到1.52 MPa。在外部应变下，STG-CB / PUS的电导率变化很快，因此可以用作应变传感器。在撞击过程中，STG-CB / PUS可以检测到撞击刺激（0.147–1450 mJ），同时使攻击力降低63％。此外，发现“ B“ O交叉键”响应剪切增稠特性，结构相关的电学行为有助于传感活动。最后，准备了STG-CB / PUS增强型护膝。通过减少44％的攻击力，它具有可靠的防护性能，并且可以有效地追踪人体的运动，例如步行，奔跑和跳跃。