Biocompatible Poly(vinylidene Fluoride)/cyanoacrylate Composite Coatings With Tunable Hydrophobicity And Bonding Strength

摘要

Biocompatible composite coatings are produced from solution processable poly(vinylidene fluoride)/cyanoacrylate blends prepared in the presence of rosin and ZnO particle fillers, the latter for control of coating surface microstructure. Dispersions are spray coated and cured at 100 ℃ onto aluminum foils and fiberglass cloths suitable for tissue engineering applications. The elastic modulus of the composite films matches or exceeds that of polyethylene-based orthopedic implant materials. Contact angle measurements on coated fiberglass cloths reveal that wettability of hydrophobic coatings is maintained under strain for applied mechanical stress levels up to ～ 15 kN/m~2, whereas ultrahydrophobic coatings fail at ～5 kN/m~2.