2. Basics
Play-Doh is made
from a basic
substance called
starch.
To understand how
Play-Doh works, you
must first understand
starches.
3. Starches
Two main starches:
~amylose
~amylopectin
If both of these
compounds are
added, the mixture
will gelatinize.
4. Retrogradation
Retrogradation is the process the dough
undergoes when it dries out.
To keep it moist, you need a retrogradation
inhibitor.
These are usually waxy starches.
5. surfactants
Since the compound is now to sticky,
surfactants are added.
Must contain hydrophilic and lipophilic
compounds.
Surfactants make up 1% of the compound.
6. storage
Play-Doh must be
kept in air tight
containers.
If they are not, the
retrogradation
inhibitors will dry out,
causing the
compound to dry out.
7. Implications
Play-Doh is FUN!
It can teach us about
starches, sugars, and
other organic
compounds.
It’s FUN.
