Urea Formaldehyde - UF Urea Cellulose Filled

Aug 16 2001

Advantages

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

Disadvantages

Lower maximum operating temperature, worse dielectric constant, tracking resistance and dimensional stability compared with urea formaldehyde foam.

Typical Properties

Property

Value

Density (g/cm3)

1.47

Surface Hardness

RM115

Tensile Strength (MPa)

57

Flexural Modulus (GPa)

10

Notched Izod (kJ/m)

0.02

Linear Expansion (/°C x 10-5)

3

Elongation at Break (%)

0.8

Strain at Yield (%)

N/A

Max. Operating Temp. (°C)

75

Water Absorption (%)

0.6

Oxygen Index (%)

30

Flammability UL94

V0

Volume Resistivity (log ohm.cm)

12

Dielectric Strength (MV/m)

12

Dissipation Factor1kHz

0.04

Dielectric Constant  1kHz

7

HDT @ 0.45 MPa (°C)

260+

HDT @ 1.80 MPa (°C)

130

Material Drying  hrs @ °C

NA

Melting Temp. Range (°C)

95 - 105

Mould Shrinkage (%)

0.8

Mould Temp. Range (°C)

135 - 155

Applications

Electrical plugs and terminals, buttons, adhesives, binders, toilet seats, bottle caps, knobs and handles.

 

Source : Abstracted from Plascams

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

 

Tell Us What You Think

Do you have a review, update or anything you would like to add to this article?

Leave your feedback
(Logout)
Submit

Powering Next-Generation Electronics with Recovered Lithium

AZoM speaks to Professor Yi Cui and Dr. Fang Liu about their groundbreaking research into lithium batteries. The researchers have found a way to revitalize 'dead' lithium in batteries and hope that their work will make way for extended battery life and less battery wastage.

Powering Next-Generation Electronics with Recovered Lithium
Monitor Greasing and Lubrication with LUBExpert

Monitor Greasing and Lubrication with LUBExpert

Improper grease application accounts for a large amount of bearing failures. With 40% of bearings not lasting enough to deliver their engineered value, under and over lubrication are key areas to monitor. LUBExpert allows you to use the appropriate lubricant and the right time and the right place.

From SDT Ultrasound Solutions

Sponsored Content

Graphene

Graphene: The Future of Solar Cells?

Graphene: The Future of Solar Cells?

Solar energy has been at the forefront of nations' efforts to develop new technologies, and scientists are continuously looking for new methods to develop efficient energy-generating systems.

Newsletters you may be interested in

See all Newsletters »