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Glossary » Materials » Polymers » Polyacrylates » Poly(methylmethacrylate), PMMA » Molding and Extrusion Compounds

Molding and Extrusion Compounds Acrylic is a subcategory of Polyacrylates. It is specially formulated to molding and extrusion compounds. Its elastic modulus ranges from 370 to 460 MPa. Its flexural modulus ranges from 325 to 460 MPa. Its tensile strength ranges from 7000 to 10500 MPa at break. Its flexural strength ranges from 10500 to 19000 MPa. Its compressive strength ranges from 10500 to 18000 MPa. Its Izod Impact strength ranges from 0.2 to 0.4 J/cm. Its elongation at break ranges from 2 to 5.5 %. Its hardness ranges from 68 to 105 Rockwell M. Its specific gravity ranges from 1.17 to 1.2. Its coefficient of thermal expansion ranges from 50 to 90 x 10^-6/°C. Its melting temperature ranges from 85 to 105 °C. Its molding pressure ranges from 5 to 20 MPa.

Polyacrylates, also known as Acrylic, is a thermoplastic polymer. poly(methylmethacrylate), PMMA It is known for its transparency, elasticity and resistance to breakage. Acrylic is commonly used in molding and extrusion compounds.