Based on TRIZ Methodology Design and Preparation of a Robust Skeletal Superhydrophobic Perfluoropolysiloxane and Polyaniline/Epoxy Resin Composite Coating with Outstanding Anti-Corrosion Performance

Corrosion not only causes substantial economic losses, but can also threaten personal safety. Superhydrophobic polyaniline composite anti-corrosion coating (SPANC) has closely received attention due to slowing chemical and electrochemical corrosion simultaneously, but the poor mechanical properties cannot meet actual needs. In this paper, function analysis, substance-field model and standard inventive solutions in TRIZ were used to solve the poor mechanical properties of SPANC, and a robust skeletal superhydrophobic perfluoropolysiloxane and polyaniline/epoxy resin composite coating (EPAMA-NPOS) was designed and prepared. The contact angle (CA) and sliding angle (SA) of H-SiO2@POS reach 165.0° ± 1.0 and 1.7° ± 0.03, respectively, the protection efficiency of EPAMA-NPOS reaches 99.94%, in friction test, and the CA is reduced from 165.0° to 147.0° after 310 times. The EPAMA-NPOS has achieved excellent superhydrophobicity, corrosion resistance and mechanical properties. The superhydrophobic polyaniline composite anti-corrosion coating has closely received attention due to slowing down chemical and electrochemical corrosion simultaneously, but the poor mechanical properties cannot meet actual needs, TRIZ was used to solve the poor mechanical properties, a robust skeletal superhydrophobic perfluoropolysiloxane and polyaniline/epoxy resin composite coating was prepared, which has achieved excellent superhydrophobicity, corrosion resistance and mechanical properties.