ABSTRACT
Ultra-high-strength polyethylene (UHSPE) fibers have higher specific strength, fracture toughness, and abrasion resistance compared to many other high per formance fibers including carbon, glass, and aramid. They also possess excellent chemical resistance because of their nonpolar nature. UHSPE fibers have been used as replacements for a number of reinforcing fibers in composites because of their high strength. However, the low melting point and high creep limits the use of UHSPE fibers in many applications. Additionally, their adhesion to matrix ma terials (resins) is very poor, primarily due to their nonpolar nature and smooth surface. While their nonpolar nature prevents any chemical bonding, the smooth *
surface makes them difficult to be mechanically bonded to resins. These undesir able properties have limited their use in advanced composites.
