A kind of fatty chain siloxane dispersion was successfully synthesized by segmentally controlling temperature and feedingvia two-stage temperature control and feeding

and the associated coating was fabricated on glasses. The water contact angle and the rolling angle of the coatings could reach to 158° and 2°

respectively. Besides

the effects of the concentration of catalyst

water and siloxanes as well as and the reaction time on the morphology and wettability of the coating were investigated. With low water content

the superhydrophobicity of the coating is improved with the increase of catalyst content

water content and the content of catalyst

water and fatty chain siloxane. However

the excessively addition of excess catalyst

or water or long-chain siloxane could lead to cracking of the coating. Thereby the optimal reaction conditions for the synthesis of the dispersion could be determined. More importantly

the introduction of the fatty chain of siloxane could provide the coating with both hierarchical structure and low surface energy groups.