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

Basic characteristics and operation of mosfet, Q. Basic Characteristics and...

Q. Basic Characteristics and Operation of MOSFET ? In Figure the gate-to-source voltage is set to zero volts by the direct connection from one terminal to the other, and a volt

Field effect transistor, Field effect transistor: Primarily difference...

Field effect transistor: Primarily difference between bit and jet is that bit transistor is a current controlled device while jet is a voltage controlled device.  Is a direct

Electro Chemistry, Construction and working of calomel electrode

Construction and working of calomel electrode

Power, what is reactivecpower

what is reactivecpower

Explain working of bipolar junction transistors, Q. Explain working of Bipo...

Q. Explain working of Bipolar junction transistors? The family of bipolar junction transistors has two members: the npn BJT and the pnp BJT. Both types contain semiconductor ju

Electric helicopter, examples in building electric helicopter using cardboa...

examples in building electric helicopter using cardboard, balsa wood, scotch tape, glue, binder clips, rubber bands, rubber stoppers, etc. attached to a 12v power supply

Explain the function of the pins psen and ea of 8051, Explain the function ...

Explain the function of the pins PSEN and EA of 8051. PSEN: PSEN stands for program store enable. In 8051 based system in which an external ROM holds the program code, this pin

Convolution, Convolution :   (i) Express this function in terms of kern...

Convolution :   (i) Express this function in terms of kernel coefficients and convolve with image class.png, (x,y are coordinates of pixels) Io(x,y)=I(x+1,y)-2*I(x,y)+I(x-1,

What do you mean by digital systems, Q. What do you mean by digital systems...

Q. What do you mean by digital systems? Electronics information is generally placed into two categories as digital and analog. The Digital information is represented in discret

Illustrate electric potential and voltage, Q. Illustrate Electric Potential...

Q. Illustrate Electric Potential and Voltage? When electrical forces act on a particle, it will possess potential energy. In order to describe the potential energy that a parti

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