University of Pennsylvania

Drexel University

Dengteng Ge

Shu Yang

Daeyeon Lee

Gaoxiang Wu

Yubo Zhao

Lili Yang

Yun-Ru Huang

A method of producing a nanocomposite film includes generating a bilayer film including at least a first layer of at least one nanoparticle and a second layer of at least one material and annealing the bilayer film. A uniform nanocomposite film includes a plurality of nanoparticles dispersed in a polymer matrix, wherein the plurality of nanoparticles form at least 60% by volume of the polymer nanocomposite film.

Nanocomposite films and methods for producing the same

The present invention provides a layered coating adhered to a substrate surface which conforms to a surface topography defined by the anisotropic chain-like silica nanoparticles on the substrate. The layered coating comprises a layer of anisotropic chain-like silica nanoparticles. The anisotropic chain-like silica nanoparticles comprise linked arrays of silica net-negatively charged nanoparticles, each linked array having at least one linear dimension of about 100 nm to about 1200 nm and the anisotropic chain-like silica nanoparticles each have a diameter of about 20 nm to about 80 nm. The substrate surface comprises surface active moieties carrying a net positive charge and the chain-like anisotropic silica nanoparticles are held to the surface by electrostatic charge. Advantageously, the layered coatings are transparent and superhydrophobic. Also provided are articles containing these layered coatings.

Omni-transparent and superhydrophobic coatings assembled from chain-like nanoparticles

Provided herein are fluid compositions comprising at least one silane having one or more hydrophilic groups, at least one silane having one or more fluorinated moieties, and stringed silica nanoparticles. Additionally, superamphiphobic surfaces resulting from coating and curing a fluid composition on a substrate are disclosed. Also provided are methods of forming a superamphiphobic surface, comprising coating a substrate of interest with the fluid composition and curing the coated substrate.

Superamphiphobic surfaces and compositions and methods of forming the same

Growing community of inventors

Songjiang, China

Dengteng Ge