in which a reactive gas atmoshpere modifies the outermost molecular layer of a particle/fiber/plastic/film or fabric. The treatment causes the molecular backbone and/or side chains... to react, resulting in formation of polar functional groups on the surface, such as hydroxyls and carboxylates. These oxygen-containing chemical functionalities cause the treated... particles to have high surface energy. This in turn means that the treated particles are readily wetted and dispersed in polar polymers, such as polyols. The effectiveness of treatment...