INTRODUCTION TO HIGH MODULUS POLYPROPYLENE
High modulus polypropylene, as the name already indicates, has a higher modulus compared to normal polypropylene. A modulus hereby means the ratio of the stress expressed in force per unit linear density, making HMPP yarns to high performance yarns.
High modulus polypropylene offers specific tensile strength and modulus similar to fiberglass but at a much lower density. Furthermore, HMPP has twice the toughness of aramid fiber, with a dielectric constant one-third that of glass