14 - Tensile properties of polypropylene fibers

Abstract

As soon as it appeared on the market, half a century ago, polypropylene appeared as a promising fiber-forming polymer but with some difficulties in processing due to a lack of control of its viscoelastic properties and in durability due to its low stability to oxidation. These difficulties were progressively resolved in the last decades by a sharper control of synthesis conditions, e.g., of stereoregularity and molar mass distribution, and by a better knowledge of oxidation and stabilization mechanisms. These research efforts allowed polypropylene to invade a very wide range of fibre applications, from disposable diapers to geotextiles.