Facile synthesis of waterborne UV-curable polyurethane/silica nanocomposites and morphology, physical properties of its nanostructured films

Waterborne UV-curable polyurethane (WUPU)/silica nanocomposites were prepared by in situ method using aqueous silica sol. the nanosilica particles were well dispersed in the matrix. Some large silica aggregates in the magnitude of micrometer can be seen with increasing the silica content.