The smart automobile sector, a burgeoning industry today, demands high standards for the manufacturing and performance of smart automotive upholstery leather, driven by continuous innovations in smart technology, comfort, and aesthetics. Herein, natural leather is utilized as a multiscale microporous reactor to create the chemical environment necessary for the preparation of a new smart material (ACG leather), which combines the traditional tannery process with a “gradient feeding in situ one-step preparation strategy”. Leveraging the unique porous structure of attapulgite (ATP) with the incorporation of chitosan (CS) and glycerol triglycidyl ether (GTE), the ACG leather integrates radiation cooling performance (outdoor experiments demonstrate a temperature drop of 8.69 °C), color modulation properties, effective shielding against electromagnetic interference (EMI) (approximately 5.8 dB) and acoustic noise reduction (sound pressure level >22 dB in the frequency range of 992–6400 Hz). Additionally, the bactericidal properties of ACG leather (E. coli inhibition zone diameter = 14 mm, S. aureus inhibition zone diameter = 9 mm), yellowing resistance, mechanical properties (tensile strength of 24.40 MPa, tear strength of 73.52 N mm⁻¹, elongation at break of 91.45%), flame retardancy (LOI = 29.3%), and biodegradability align with sustainable development goals. The advanced design and versatility of ACG leather demonstrate the possibilities for incorporating advanced materials into smart automotive upholstery design, breaking away from traditional manufacturing methods that rely on more material components and complex processes.

中文翻译：

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基于天然皮肤微反应器中梯度进料原位一锅反应的合理设计的智能汽车内饰皮革


智能汽车行业是当今一个新兴的行业，在智能技术、舒适性和美学方面的不断创新推动下，对智能汽车内饰皮革的制造和性能提出了高标准要求。在此，天然皮革被用作多尺度微孔反应器，为制备新的智能材料（ACG 皮革）创造必要的化学环境，该材料将传统的制革工艺与“梯度喂料原位一步制备策略”相结合。利用凹凸棒石 （ATP） 独特的多孔结构，并掺入壳聚糖 （CS） 和甘油三缩水甘油甘油三缩水甘油醚 （GTE），ACG 皮革集成了辐射冷却性能（室外实验表明温度下降 8.69 °C）、颜色调制特性、有效屏蔽电磁干扰 （EMI）（约 5.8 dB）和降噪（在 992–6400 Hz 频率范围内的声压级 >22 dB）。此外，ACG 皮革的杀菌性能（大肠杆菌抑制区直径 = 14 mm，金黄色葡萄球菌抑制区直径 = 9 mm）、耐黄变性、机械性能（拉伸强度为 24.40 MPa，撕裂强度为 73.52 N ^mm-1，断裂伸长率为 91.45%）、阻燃性 （LOI = 29.3%） 和生物降解性与可持续发展目标一致。ACG 皮革的先进设计和多功能性展示了将先进材料融入智能汽车内饰设计的可能性，打破了依赖更多材料组件和复杂工艺的传统制造方法。