TY - SER AU - Caldas, V. AU - Brown, G.R. AU - Nohr, R.S. TI - Enhancement of Tensile Properties of Isotactic Polypropylene Spunbonded Fabrics by a Surface-Modified Silica/Silicone Copolymer Additive KW - Isotactic Polypropylene KW - Spunbonded Fabrics KW - Silica ER -