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Self-Assembled Nanofiber Templates; Versatile Approaches for Polymer Nanocomposites

详细技术说明

The incorporation of nanoparticles into matrix polymers is a common approach to create materials with new or improved properties. However, due to strong inter-particle interactions, it is often diffi

*Abstract

The incorporation of nanoparticles into matrix polymers is a common approach to create materials with new or improved properties. However, due to strong inter-particle interactions, it is often difficult to achieve full particle dispersion, which compromises the properties of interest. This technology provides simple and versatile methods for the formation of homogeneous polymer-nanofiber composites. The processes are based on the formation of a three-dimensional network of well-individualized nanofibers through their gelation in an appropriate non-polymeric solvent or a polymer containing solvent, depending upon the properties desired. This stable gel scaffold is subsequently filled with a solution of a desired matrix polymer, before the nanocomposite is dried and compacted. Through the creation of various new nanocomposites, it is demonstrated that these approaches allow for the fabrication of percolating nanocomposites of otherwise immiscible components. The resultant materials exhibit dramatic changes in mechanical properties, such as increased shear modulus, when compared to the neat polymer. Issued patent US-7,935,745.

国家/地区

美国