Structural Epoxy Resin T26

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Description

Т26 is a single part low viscosity epoxy infusion resin developed for high-loaded structures. T26 offers simple and flexible processing due to low viscosity at relatively low impregnation temperatures (110°С). T26 was developed specially for RTM and vacuum infusion molding, to produce laminates with low porosity and extremely high mechanical performance, especially in crack resistance. It shows the following features and properties:


  • One-part resin designed specifically for high-temperature infusion or RTM
  • Wide processing window > 7 hours at 110°C
  • Curing at 180°C provides glass transition temperature of 205°C
  • High wet glass transition temperature —172°C
  • Very high resistance to impact
  • Operating temperatures from –60°C to 150°C
  • This material data has been provided by Matmatch.

    "Typical" values were obtained via a literature search. "Predicted" values were imputed via artificial intelligence technology. While we have placed significant efforts in ensuring data accuracy, "typical" and "predicted" data should be considered indicative and verified by appropriate material testing. Please do contact us if additional information on the the predicted data method is required.
    All metrics apply to room temperature unless otherwise stated. SI units used unless otherwise stated.
    Equivalent standards are similar to one or more standards provided by the supplier. Some equivalent standards may be stricter whereas others may be outside the bounds of the original standard.

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    Properties

    General

    PropertyTemperatureValueComment

    Density

    23.0 °C

    1.17 g/cm³

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    ASTM D792

    Water absorption

    23.0 °C

    1.6 %

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    for 54h to boiling water

    Mechanical

    PropertyTemperatureValueComment

    Elastic modulus

    23.0 °C

    3.1 GPa

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    ASTM D638

    Elongation

    23.0 °C

    4 - 7.2 %

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    Flexural strength

    23.0 °C

    152 MPa

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    ASTM D790

    Plane-Strain Fracture Toughnes

    23.0 °C

    0.62 MPa·√m

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    ASTM D5045

    Tensile strength

    23.0 °C

    95 MPa

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    ASTM D638

    Strain energy release

    ASTM D5045

    Thermal

    PropertyTemperatureValueComment

    Coefficient of thermal expansion

    23.0 °C

    7.2E-5 1/K

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    ASTM E831

    Glass transition temperature

    202 °C

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    ASTM E1640

    Max service temperature

    150

    Technological properties

    Property
    Application areas

    Drones;Sports equipment: Frame, wheels, seat, seat post, handlebar, head stem and crank arm of a sports bicycle are made of carbon composite;Geometry strengthen elements: Experimental stringer panel

    Processing history

    Preheat the resin to 60-90°С in its container for transfer to the resin pot. Degas the resin for 30-40 minutes while heating to 90°С. Preheat the tool to 100-110°С (or to 115-120°С for parts having complex shape or for UD parts). Maintaining resin pot temperature of 95 °С and tool temperature of 100-115 °С, begin resin infusion. After complete impregnation increase tool temperature at 2°С/min to 180°С. Dwell at 180°С for 3 h. Cool the tool to 90°С at <5°С/min before releasing part from tool.

    Processing methods

    Preheat the resin to 60-90°С in its container for transfer to the resin pot. Degas the resin for 30-40 minutes while heating to 90°С. Preheat the tool to 100-110°С (or to 115-120°С for parts having complex shape or for UD parts). Maintaining resin pot temperature of 95 °С and tool temperature of 100-115 °С, begin resin infusion. After complete impregnation increase tool temperature at 2°С/min to 180°С. Dwell at 180°С for 3 h. Cool the tool to 90°С at <5°С/min before releasing part from tool.