0 votes
124 views
in Chapter 14 Substances in Common Use by (98.9k points)
edited

Explain what you see in the following picture 

1 Answer

0 votes
by (98.9k points)
selected by
 
Best answer

This  picture shows the process of powder coating. 

  • A polymer resin, a pigment and some more ingredients are melted, mixed, cooled and ground into a uniform powder.
  • This powder is sprayed on the polished metal surface by electrostatic spray deposition (a method in which the particles of powder are given an electric charge) that makes a uniform coating on the substance.
  • Once completely coated, the object is then heated, which results in the formation of long cross-linked polymeric chains.
  • This coating is highly durable, hard and attractive.
  • It can be done on plastic and medium density fibre board as well.

Related questions

0 votes
0 answers 187 views
0 votes
0 answers 108 views

Doubtly is an online community for engineering students, offering:

  • Free viva questions PDFs
  • Previous year question papers (PYQs)
  • Academic doubt solutions
  • Expert-guided solutions

Get the pro version for free by logging in!

5.7k questions

5.1k answers

108 comments

561 users

...