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Glossary » Materials » Polymers » Phenol-Formaldehyde Plastic » Phenol-Formaldehyde » Fabric and Rag Filled, Impact Modified » Molding Compounds

Fabric and Rag Filled, Impact Modified Molding Compounds PF is a subcategory of Phenol-formaldehyde Plastic. The additative is added during the manufacturing process. Its elastic modulus ranges from 900 to 1100 MPa. Its flexural modulus ranges from 700 to 1300 MPa. Its tensile strength ranges from 6000 to 8000 MPa at break. Its flexural strength ranges from 10000 to 14000 MPa. Its compressive strength ranges from 20000 to 28000 MPa. Its Izod Impact strength ranges from 0.8 to 3.5 J/cm. Its elongation at break ranges from 1 to 4 %. Its hardness ranges from 105 to 115 Rockwell M. Its specific gravity ranges from 1.37 to 1.45. Its coefficient of thermal expansion ranges from 18 to 24 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.