Self-Healing PDMS/SiO2-CaCO3 Composite Coating for Highly Efficient Protection of Building Materials

Abstract An effective superhydrophobic and self-healing coating is fabricated on building materials. This coating can restore its properties at room temperature after being damaged by rubber or acid. The coating can not only be directly applied on different substrates, but also be used for anti-corrosion. The corrosion current of the coated iron plate is reduced by 57.1%, and the corrosion potential is increased by 3.9%.