Materials

Design

Processes

Units

Formulas

Math

Glossary » Materials » Polymers » Polypropylene » 10 - 30% Glass Fiber Reinforced

10 - 30% Glass Fiber Reinforced PP is a subcategory of Polypropylene. The additative is added by weight during the manufacturing process. Its elastic modulus ranges from 700 to 1000 MPa. Its flexural modulus ranges from 310 to 780 MPa. Its tensile strength ranges from 6500 to 13000 MPa at break. Its flexural strength ranges from 7000 to 20000 MPa. Its compressive strength ranges from 6500 to 8400 MPa. Its Izod Impact strength ranges from 1 to 2.2 J/cm. Its elongation at break ranges from 1.8 to 7 %. Its hardness ranges from 92 to 115 Rockwell R. Its specific gravity ranges from 0.97 to 1.14. Its coefficient of thermal expansion ranges from 21 to 62 x 10^-6/°C.

Polypropylene, also known as PP, is a thermoplastic, (crystalline), polymer. Common trade names are Marlex HGL and Fortilene 1800 series (FDA materials). homopolymer Its key attributes are high lubricity, high resistance to flexing (excellent material for living hinges), excellent dielectric strength and chemical resistance, good impact strength, and high solvent resistance. It is inexpensive and electroplatable, but it is difficult to paint, print on, or bond to. It will be attacked by fuming nitric acid and degraded by UV and ionizing radiation. PP can be used to make medical syringes, beakers, and parts for auto interiors.