UP: Unsaturated polyester resin


Short Name
UP
Name
Unsaturated polyester resin
Group
TS - Thermosets
General Properties
Chemical Formula
Structural Formula

Properties

Glass Transition Temperature
60 to 170 °C
Melting Temperature
- °C
Melting Enthalpy
- J/g
Decomposition Temperature
340 to 350 / 470 to 490 °C
Young's Modulus
14000 to 20000 MPa
Coefficient of Linear Thermal Expansion
20 to 40 *10¯6/K
Specific Heat Capacity
1.26 to 2.30 J/(g*K)
Thermal Conductivity
0.3 to 0.7 W/(m*K)
Density
1.17 to 1.26 g/cm³
Morphology
Thermoset
General properties
High strength and stiffness. High toughness. Good chemical resistance. Good electrical insulating properties
Processing
Compression, injection molding, casting, in the cured state: machining
Applications
Embedding of electronic components. Vehicle construction. Boat building (laminates). Building industry (e.g., dome lights). Electrical engineering. Reaction paints, adhesives

Internet Links

NETZSCH Measurements

Instrument
DSC 204 F1 Phoenix®
Sample Mass
15.63 mg
Isothermal Phase
8 min
Heating/Colling Rates
20 K/min
Crucible
Al, pierced
Atmosphere
N2 (40 ml/min)

Evaluation

The DSC curve shown above indicates a glass transition (midpoint 66°C) in the 1st heating, followed by two small overlapping peaks (attributable to the melting of additives) and post-curing with a peak temperature of 191°C and a reaction enthalpy of approx. 4 J/g.

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