give the properties and applications of

Question

Give the properties and applications of Bakelite.

This is most common type of phenol formaldehyde. This is hard, thermosetting, dark coloured material.

Its major properties are:

1. Dielectric constant is 4.1.

2. Dissipation factor is 0.001.

3. Dielectric strength is 400 V/mil.

4. Its Volume resistivity is 10¹³ ohm-cm.

5. Its Maximum useable temperature is 300⁰F.

6. Water absorption is 0.13%in 24 hours.

Applications: This is widely used for moulded parts as lamp holders, instrument cases and small panels, as electrical parts and terminal blocks or appliances for example: plug holders and sockets.