Preparation and properties of Craft paper-based temperature-regulated flame-retardant superhydrophobic coating

In this study, the double-layer shell paraffin@SiO2/LDH microcapsules with temperature regulation and flame-retardant functions were prepared by hydrolytic polymerization, electrostatic attraction, and in situ deposition. The paper-based temperature-regulated flame-retardant superhydrophobic coating was prepared by spraying a mixture of phase change microcapsules and an ethyl acetate solution containing polydimethylsiloxane-modified epoxy resin on the surface of Craft paper. Scanning electron microscopy showed that the microcapsules were rough spheres with a diameter of 10 μm. The results of the differential scanning calorimetry thermal analysis revealed that the melting point and latent heat of paraffin@SiO2/MgAl-LDH microcapsules were 46.92 °C and 68.44 J/g. The self-cleaning experiment showed that Craft paper-based temperature-regulated flame-retardant superhydrophobic coating had an excellent self-cleaning effect. The combustion experiment showed that the temperature-regulated flame-retardant superhydrophobic coating had an effective flame-retardant effect.