Mineral modifiers take
on new roles
Minerals used as fillers in plastic compounds have traditionally
been used to reduce material costs by replacing a portion of the
polymer with a less expensive material. However, nowadays many functional
fillers or mineral modifiers are required to modify processing characteristics
or finished part properties. Many are now also being used to reduce
the level of more expensive additives such as pigments, flame retardants
and impact modifiers. Jennifer Markarian reports on the changing
face of fillers.
Additives for Polymers
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