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

Determine the concentration of hydroxide ion in this buffer, In lab, buffer...

In lab, buffers solution based onto a 0.1 M solution of sodium phosphate at pH7.0.  Within this system, there are three of pK A s like:  12.7, 7.21 and 2.12. Determine the conce

Benzyne - organic chemistry, Benzyne - organic chemistry (1) 1, 2-Dideh...

Benzyne - organic chemistry (1) 1, 2-Didehydrobenzene, C 6 H 6 and its derivatives are known as benzyne or arynes and the simplest member is benzyne.      (2) It is neutral re

Physical properties of nitro alkanes or nitroparaffins, Physical properties...

Physical properties of Nitro alkanes or Nitroparaffins (1) Nitro alkanes are colourless, pleasant smelling liquids. (2) These are sparingly soluble in water but enthusiastic

Classification of dyes - direct dyes, Classification of dyes according to t...

Classification of dyes according to their application Direct dyes: this type of dyes can be directly applied to the fiber, both vegetable and animal, by dipping in hot aqueo

Uses of alkyl nitrites, Uses of Alkyl nitrites (1) Ethyl nitrite dialat...

Uses of Alkyl nitrites (1) Ethyl nitrite dialates the blood vessels and so accelerates pulse rate and lowers blood pressure thus it is utilized for a medicine for the treatment

Solvent effect of UV, what is the solvent effect on transition metal?

what is the solvent effect on transition metal?

Bohr''s model of the hydrogen atom, Which of the following statements does ...

Which of the following statements does not form part of Bohr's model of the hydrogen atom: (1) Energy of the electrons in the orbit is quantized (2) The electron in the orbi

Objectives-purchase of alcohol and its stock maintenance, Objectives: Afte...

Objectives: After doing this exercise you will be able to: 1 . Fill-up a F-22 form or write an application for obtaining the license permit for alcohol, 2 . Give justifica

Equivalent weight, how to calculate equivalent weight of LMnO4

how to calculate equivalent weight of LMnO4

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