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

Show balanced three-phase loads, Q. Show Balanced three-phase loads? Th...

Q. Show Balanced three-phase loads? Three-phase loads can be connected in either wye (also known as star or Y) or delta (otherwise known as mesh or ). If the load impedances i

Determine the transfer function and driving-point impedance, Q. A filter is...

Q. A filter is a network employed to select one range of frequencies while rejecting all other frequencies. A basic building block often used in integrated-circuit filters is shown

Semiconductor, what are the most 4 types of doping techinques in semiconduc...

what are the most 4 types of doping techinques in semiconductors

Compute the number of electrons that pass a given point, Q A wire with n = ...

Q A wire with n = 10 30 electrons/m 3 has an area of cross section A = 1mm 2 and carries a current i = 50 mA. Compute the number of electrons that pass a given point in 1 s, and

Explain assume assembler directive, What do you understand by ASSUME as...

What do you understand by ASSUME assembler directive? ASSUME: This directive will be utilized to map the segment register names along with memory addresses.  The Synta

Classification of feedback control systems by control action, Classificatio...

Classification of Feedback Control Systems by Control Action A more common means of describing industrial and process controllers is by the way in which the error signal E(s) i

Compute the generator efficiency at full load, Q. A 100-kW, 230-V, dc shunt...

Q. A 100-kW, 230-V, dc shunt generator, with R a = 0.05 , and R f = 57.5  has no-load rotational loss (friction, windage, and core loss) of 1.8 kW. Compute: (a) The generato

Electrical machine, Explain the principle of induction applied in electrica...

Explain the principle of induction applied in electrical machine

Draw the equivalent magnetic circuit diagram, 1) Consider the magnetic circ...

1) Consider the magnetic circuit shown in the figure. Steady currents flow in the windings of N 1 and N 2 turns on the outside legs of the ferromagnetic core. The core has a

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