title: A superhydrophobic surface with high performance derived from STA-APTES organic-inorganic molecular hybrid.
abstract: The chemical originals of natural superhydrophobic surfaces are based on botanic or animal wax or fat, which have poor chemical and thermal resistance. Herein, we report a simple chemical modification of stearic acid (STA) with γ-aminopropyl triethoxysilane (APTES), to obtain an organic-inorganic molecular hybrid STA-APTES compound. A flower-like hierarchically structured surface with superhydrophobicity can be obtained simply by casting the STA-APTES solution under ambient circumstance. The crystallization of the hydrocarbon chain from STA leads to the formation of the binary microstructure and reduces the surface tension, contributing to the superhydrophobicity of the as-formed surface. In addition, the condensation of Si(OCH2CH3)3 from APTES can lead to the cross-linking of the resultant surface, which endows the as-formed superhydrophobic surface with high performances, such as excellent thermal and solvent resistance, etc. This superhydrophobic surface prepared is superior to its many analogs in nature, promising a wide application especially in harsh circumstance.
authors.affiliation: School of Materials Science and Engineering, Tianjin Polytechnic University, Tianjin 300387, PR China.
authors.forename: Fangfang
authors.initials: F
authors.lastname: Si
authors.forename: Ning
authors.initials: N
authors.lastname: Zhao
authors.forename: Li
authors.initials: L
authors.lastname: Chen
authors.forename: Jian
authors.initials: J
authors.lastname: Xu
authors.forename: Qingsheng
authors.initials: Q
authors.lastname: Tao
authors.forename: Jinyong
authors.initials: J
authors.lastname: Li
authors.forename: Chunbo
authors.initials: C
authors.lastname: Ran
mesh_terms: D057927:Hydrophobic and Hydrophilic Interactions; D007287:Inorganic Chemicals / Q000737:chemistry*; D008855:Microscopy, Electron, Scanning; D009930:Organic Chemicals / Q000737:chemistry*; D013500:Surface Tension
chemical_list: D007287:Inorganic Chemicals; D009930:Organic Chemicals
keywords: Bionic; Organic–inorganic molecular hybrid; Superhydrophobic surface