Biocompatible poly(vinylidene fluoride)/cyanoacrylate composite coatings with tunable hydrophobicity and bonding strength

Bayer, I. S.; Tiwari, M. K.; Megaridis, C. M.
October 2008
Applied Physics Letters;10/27/2008, Vol. 93 Issue 17, p173902
Academic Journal
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 °C 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/m2, whereas ultrahydrophobic coatings fail at ∼5 kN/m2.


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