Urea Formaldehyde - UF Urea Foam

Advantages

Higher maximum operating temperature, better dielectric constant, tracking resistance and dimensional stability compared with cellulose filled urea formaldehyde.

Disadvantages

Lower HDT, tensile strength and flexural modulus; higher water absorption and mould shrinkage; lower surface hardness, elongation at break and volume resistance compared with cellulose filled urea formaldehyde.

Typical Properties

Property

Value

Density  (g/cm3)

0.01

Surface Hardness

SD50

Tensile Strength (MPa)

0.01

Flexural Modulus (GPa)

0.02

Notched Izod (kJ/m)

0.02

Linear Expansion (/°C x 10-5)

3

Elongation at Break (%)

0.2

Strain at Yield (%)

N/A

Max. Operating Temp. (°C)

90

Water Absorption (%)

20

Oxygen Index (%)

30

Flammability UL94

V0

Volume Resistivity (log ohm.cm)

5

Dielectric Strength (MV/m)

10

Dissipation Factor1kHz

0.05

Dielectric Constant  1kHz

1.7

HDT @ 0.45 MPa (°C)

20-

HDT @ 1.80 MPa (°C)

75

Material Drying  hrs @ °C

NA

Melting Temp. Range (°C)

NA

Mould Shrinkage (%)

3.5

Mould Temp. Range (°C)

NA

Applications

Flower arranging blocks, insulating panels.

 

Source : Abstracted from Plascams

For more information on Plascams please visit The Rubber and Plastics Research Association

 

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