Chapter 9 - Solvent

Question 1

Types of solvent usually used

Answer 1

Water
Aliphatic hydrocarbon mixture
terpenes
aromatic hydrocarbon
alcohol
ester
ketones
ether and ether alcohols
nitroalkanes (Nitroparaffin)
Chloroalkanes (Chloroparaffin)

Question 2

How do you make any resin become water soluble or at least with alcohols or ether alcohols

Answer 2

first you need to incorporate sufficient ionic groups into polymer to give the resin an acid value of 30-50,

then you need to neutralized with volatile base such as ammonia / an amine to make the resin to becomes a polymeric salt

This salt is soluble in water / Water ether alcohol

Question 2

Anodic Cathodic Electrodeposition

Answer 2

anodic electrodeposition is if the anode is a metallic object, then the discharged resin will deposit on that object and coat it. The polymeric salt is engatively charged and is attracted to discharged at anode