The friction coefficients of composites prepared by traditional fillers and structure design are usually uncontrollable, which gradually cannot meet the requirements of intelligent response behavior in the modern manufacturing industry. Hence, an epoxy, graphene oxide, and paraffin wax composite (GPEP@ PW) with a network-like sandwich structure was prepared by a four-step method (template method-vacuum impregnation-de-template-vacuum impregnation). Due to sensitive photothermal conversion of GO and excellent ability to control heat (absorption and release) of paraffin wax, GPEP@ PW can respond to near-infrared light to realize the real-time conversion of friction coefficient (0.052 and 0.062), while the wear rate was reduced by two orders of magnitude rate (10⁻⁴ to 10⁻⁶ mm³/N·m). The light response behavior of tribology under different near-infrared intensities was studied. This strategy is simple and versatile, providing a new idea for the design and preparation of light stimulus-responsive materials to achieve smart tribological properties.

传统填料和结构设计制备的复合材料的摩擦系数通常不可控，逐渐不能满足现代制造业对智能响应行为的要求。因此，通过四步法（模板法-真空浸渍-脱模板-真空浸渍）制备了具有网络夹心结构的环氧树脂、氧化石墨烯和石蜡复合材料（GPEP@PW）。由于GO的敏感光热转换和石蜡优异的控热（吸收和释放）能力，GPEP@PW可以响应近红外光实现摩擦系数（0.052和0.062）的实时转换，而磨损率降低了两个数量级（10 ^-4到 10 ^-6 mm³ /N·m)。研究了不同近红外强度下摩擦学的光响应行为。该策略简单而通用，为设计和制备光刺激响应材料以实现智能摩擦学特性提供了新思路。