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Glossary » Materials » Polymers » Liquid Crystal Polymer » 30% Glass Fiber Reinforced » High HDT

30% Glass Fiber Reinforced High HDT LCP is a subcategory of Liquid Crystal Polymer. The additative is added by weight during the manufacturing process. Its elastic modulus ranges from 2330 to 2600 MPa. Its tensile strength ranges from 18000 to 21025 MPa at break. Its flexural strength ranges from 24000 to 25230 MPa. Its compressive strength ranges from 9600 to 12500 MPa. Its Izod Impact strength ranges from 2 to 4.2 J/cm. Its elongation at break ranges from 1.7 to 2.2 %. Its specific gravity ranges from 1.6 to 1.66. Its coefficient of thermal expansion ranges from 14 to 36 x 10^-6/°C. Its molding pressure ranges from 4 to 8 MPa.

Liquid Crystal Polymer, also known as LCP, is a thermoplastic. Common trade names are Vectra and Xydar. Although expensive, LCP has excellent strength and good high temperature properties. It can be used in thin wall (as thin as 0.2 mm) applications. LCP parts can withstand vapor phase reflow and autoclaving temperatures of 135 ºC. It has high chemical resistance and is flame retardant. It has very low coefficient of thermal expansion and high tensile modulus (from 10 to 24 GPa). LCP is commonly used in high-performance engineering applications such as electrical connectors and machine parts. It can be used in surgical devices, and some LCP's meet the standards of USP Class VI.