eFunda: Glossary: Materials: Polymers: Polyester: Glass Fiber Reinforced: SMC

Glass Fiber Reinforced SMC Polyester is a subcategory of Polyester. The additative is added during the manufacturing process. Its elastic modulus ranges from 1400 to 2500 MPa. Its flexural modulus ranges from 1000 to 2200 MPa. Its tensile strength ranges from 7000 to 25000 MPa at break. Its flexural strength ranges from 10000 to 36000 MPa. Its compressive strength ranges from 15000 to 30000 MPa. Its Izod Impact strength ranges from 7 to 22 J/cm. Its hardness ranges from 50 to 70 . Its specific gravity ranges from 1.65 to 2.6. Its coefficient of thermal expansion ranges from 13.5 to 20 x 10^-6/°C. Its molding pressure ranges from 0.3 to 2 MPa.

Polyester is a thermoplastic or thermoset polycondensate. Common trade names are Valox and Celanex. It has excellent dimensional stability, high dielectric strength, and good toughness. It has moderate chemical resistance, low resistance to strong acids and bases, and is notch sensitive. However, it is not recommended for outdoor use or in hot water. Polyester is very popular in making clothing and handles.

Other common Polyester include Rigid Polyester, Flexible Polyester, Glass Fiber Reinforced High Polyester, Glass Fiber Reinforced, Unidirectional Glass Polyester, Glass Fiber Reinforced, Preformed Chopped Roving Polyester, Glass Fiber Reinforced, Premix Chopped Glass Polyester, Glass Fiber Reinforced, Woven Cloth Polyester, Glass Fiber Reinforced SMC, BMC Low Density Polyester, Glass Fiber Reinforced SMC Low Pressure Polyester, Glass Fiber Reinforced SMC Low Shrink Polyester, Glass Fiber Reinforced BMC, TMC Polyester, EMI Shielding (conductive), SMC & TMC Polyester, EMI Shielding (conductive), BMC Polyester, and 50% Glass Fiber Reinforced High Strength SMC Polyester.

eFunda Polymers: Properties of Polyamide {partially aromatic, 35 ...

... Properties of Polyamide {partially aromatic, 35% glass fiber reinforced, impact modified} ... Additives: 35% glass fiber reinforced, impact modified ...

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eFunda Polymers: Properties of Polyamide {partially aromatic, 60 ...

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Introduction to polymers, their molecular structures and major grouping methods.

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Polyester / alkyd, thermoset, alkyd, mineral filled, molding compounds, ... Polyester / alkyd, thermoset, vinyl ester, glass fiber reinforced, BMC. ...

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CRYSTALLINE POLYMERS: e.g., PPS, PBT (Valox), Polypropylene (PP), have. -, a sharply-defined melting point,. -, high shrinkage after molding, ...

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... Properties of Polyurethane {thermoplastic, 30% long glass fiber reinforced} ... State: thermoplastic. Additives: 30% long glass fiber reinforced ...

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eFunda Polymers: Properties of Polycarbonate {20 - 30% long glass ...

eFunda Polymers: Properties of Polycarbonate {20 - 30% long glass fiber reinforced} ... Additives: 20 - 30% long glass fiber reinforced ...

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