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Glossary » Materials » Polymers » Phenol-Formaldehyde Plastic » Phenol-Formaldehyde » Woodflour and Mineral Filled » Molding Compounds

Woodflour and Mineral Filled Molding Compounds PF is a subcategory of Phenol-formaldehyde Plastic. The additative is added during the manufacturing process. Its elastic modulus ranges from 1000 to 1800 MPa. Its flexural modulus ranges from 1200 to 1300 MPa. Its tensile strength ranges from 6500 to 7500 MPa at break. Its flexural strength ranges from 9000 to 12000 MPa. Its compressive strength ranges from 25000 to 30000 MPa. Its Izod Impact strength ranges from 0.29 to 0.35 J/cm. Its hardness ranges from 90 to 110 Rockwell M. Its specific gravity ranges from 1.44 to 1.56. Its coefficient of thermal expansion ranges from 30 to 40 x 10^-6/°C. Its molding pressure ranges from 2 to 20 MPa.

Phenol-formaldehyde Plastic, also known as PF, is a thermoset polycondensate. The most common trade name is Bakelite. phenol-formaldehyde A naturally brittle material in pure form, it is able to be strengthened with fillers such as wood pulp and cellulose. PF is the first volume-produced synthesized polymer resin. It was widely used in early consumer electronic products such as telephones and radios.