The application discloses a preparation method of a
polyurea photo-thermal anti-
icing coating and belongs to the technical field of photo-thermal anti-
icing. The application is based on silica /
polyurea composite particles and carbon materials, and super-hydrophobicity and relatively high photo-thermal conversion efficiency are obtained. The method is characterized in that
silica nanoparticles are combined into
polyurea molecules to form silica / polyurea composite particles; then the composite particles are combined with
graphite microparticles and uniformly dispersed in polysiloxane, and a super-hydrophobic photo-thermal
coating with excellent
wear resistance and durability is developed. The
coating surface has high photo-thermal conversion efficiency, can obviously
increase temperature under the
irradiation of
sunlight, can
delay the
icing time and reduce the
ice adhesion strength, and thus better anti-icing and de-icing effects are achieved.