Explain thermosetting plastic materials, Electrical Engineering

Assignment Help:

Explain Thermosetting Plastic Materials.

Thermosetting Plastic Materials: They undergo huge changes while subjected to high temperatures for rather sometimes. They are called as baked and no longer can melt or be dissolved. They are more brittle, less elastic and lose their elasticity while subjected to prolonged heating. Therefore they cannot be remoulded in various shapes once they are hardened and set. They are used, while insulation is to withstand high temperatures without losing or melting its shape and also mechanical strength. Thermosetting plastic substances are space-polymers and the molecules branch off in different directions throughout polymerisation. Such structure makes them extremely rigid, fusible, poorly soluble, and enable of forming elastic films and threads. Examples are Phenol formaldehyde (i.e. Bakelite), Epoxy resins.


Related Discussions:- Explain thermosetting plastic materials

.harmonics, describe the practical application of series resonance in ac ci...

describe the practical application of series resonance in ac circuits

Define transmission-system efficiency, Q. Define Transmission-system effici...

Q. Define Transmission-system efficiency? The transmission-system ef?ciency is de?ned as the ratio of the real power delivered to the receiving-end bus to the real power transf

Calculate the current flow and voltage drops, Based on Figure, using star-d...

Based on Figure, using star-delta transformation, calculate the current flow and voltage drops at 6kΩ resistor.

Show npn common collector amplifier, Q. Show NPN Common Collector Amplifier...

Q. Show NPN Common Collector Amplifier? The common collector amplifier, often called an emitter follower since its output is taken from the emitter resistor, is useful as

Speed control of ac machine, what is meant by pole changing methods in ind...

what is meant by pole changing methods in induction motor

Give the properties and application of bronze, Give the properties and appl...

Give the properties and application of bronze. Bronze : It is alloy of copper and tin. This alloy is very brittle and hard. Its corrosion resistance is better than brass. Bron

Briefly explain about phasor method, Q. Briefly explain about Phasor Method...

Q. Briefly explain about Phasor Method? For sinusoidal excitations of the same frequency, the forced or steady-state responses are better found by the technique known as the ph

Extended industry standard architecture, How is EISA bus different from ISA...

How is EISA bus different from ISA bus? The Extended Industry Standard Architecture (EISA): it is a 32 bit modification to the ISA bus. Since computers became larger and had wi

Explain ferrites and its uses in high frequency devices, Explain ferrites a...

Explain ferrites and its uses in high frequency devices. A group of magnetic alloys show the property of magnetisation that change, with percentage of various constituent atoms

Control systems, why open loop system is stable and why degree of stability...

why open loop system is stable and why degree of stability varies in closed loop system

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd