1：Experimental Design and Method Selection:

The study utilized electrochemical deposition to prepare CSA-doped PANI films on Au/nylon 66 porous flexible substrates. The rationale was to leverage the porous structure for enhanced electrolyte diffusion and IR modulation. Theoretical models included electrochemical polymerization kinetics and IR emissivity calculations based on reflectance measurements.

2：Sample Selection and Data Sources:

Samples included nylon 66 porous substrates with deposited Au layers and CSA-doped PANI films. Selection criteria focused on flexibility and porosity. Data were acquired through SEM, electrochemical measurements, Raman spectroscopy, and FT-IR spectrometry.

3：List of Experimental Equipment and Materials:

Equipment included a thermal evaporator for Au deposition, electrochemical workstation (CHI660E), SEM (FEI Helios Nanoloab600i), Raman spectrometer (inVia Laser Micro-Raman Spectrometer), FT-IR spectrometer (VERTEX 70), IR thermal imager (Tix660), and four-point probe (ST2258C). Materials included aniline, CSA, nylon 66 substrate, Au, Ag/AgCl reference electrode, Pt counter electrode, and aqueous solutions of CSA and aniline.

4：Experimental Procedures and Operational Workflow:

Steps involved: (a) Deposition of Au layer on nylon 66 substrate via thermal evaporation. (b) Electrochemical deposition of CSA-doped PANI film using galvanostatic method with specific current density and polymerization charge. (c) Characterization via CV, CA, SEM, Raman spectroscopy, and IR emissivity measurements. (d) Data collection at different applied voltages (-0.25 V and 0.5 V).

5：25 V and 5 V). Data Analysis Methods:

5. Data Analysis Methods: Data were analyzed using statistical techniques for emissivity calculation based on reflectance spectra, with software tools likely provided by the equipment manufacturers (e.g., Bruker for FT-IR).