CH1012
L1 /
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L1 /
15
SPARES I
2) Using an example
explain the steric
stabilisation of a colloid.
stabilisation of a colloid.
Steric
stabilistion of a colloid is exemplified
by the addition of comb polymers to paints.
by the addition of comb polymers to paints.
A high gloss paint has a significant
quantity
of a comb polymer added which attaches many pigment particles to it’s surface. Each
polymer repels adjacent polymers providing
a steric stabilisation of the colloid.
of a comb polymer added which attaches many pigment particles to it’s surface. Each
polymer repels adjacent polymers providing
a steric stabilisation of the colloid.