Bakelite, Chemistry

Assignment Help:

Bakelite:

It is thermosetting plastics which are most widely used and the most important plastics.

Preparation:

It is formed by condensation reaction of phenol and formaldehyde.

Properties:

1.                 It possesses outstanding electrical and mechanical properties.

2.                 It is resistant to heat, water and many chemicals.

3.                 It decomposes by concentrated caustic alkalis, sulphuric acid and nitric acid.

Uses:

1.                 Uses for making switch boards, aircraft accessories, automobile and telephone.

2.                 Asbestos is added to increase resistance to heat and chemicals. Moulded sheets having many uses are made by impregnating paper sheets in resins.

 

 


Related Discussions:- Bakelite

Distinguishing characteristics of metallic bonding, What are the distinguis...

What are the distinguishing characteristics of metallic bonding? The metallic state can be imagine as an array of positive ions, with a common pool of electrons to which all th

Diagonal relationship, why beryllium show simmillarity with Alumminium

why beryllium show simmillarity with Alumminium

If magnetic quantum number of a given atom represented, If magnetic quantum...

If magnetic quantum number of a given atom represented by -3, then what will be its principal quantum number: (1) 2                (2) 3        (3) 4                (4

Which set of quantum numbers are not possible, Which set of quantum numbers...

Which set of quantum numbers are not possible from the following: (1) n=3, l= 2, m=0, s= -1/2                 (2) n=3, l= 2, m=-2 s= -1/2            (3) n=3, l= 3, m=-3,

What are elastomers, Using the valence bond approach, reduce the shape and ...

Using the valence bond approach, reduce the shape and magnetic character of What are elastomers? Write the chemical equation to show the preparation ration of Buna-S.

Alcohol, what happen when allyl alcohol is reacted with pyridinium chloroch...

what happen when allyl alcohol is reacted with pyridinium chlorochromate ?

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