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POLYMER
ADDITIVES
APPLICATION DEFINITIONS :
Lubricant-
Additives used to improve flow characteristics of polymers.
Depending upon compatibility in a polymer, these materials can
function internally or externally. Internal lubricants reduce
melt viscocity, which promotes flow. External lubricants reduce
friction between the polymer melt and the metal surfaces of the
processing equipment. Injection moulding,external lubricants are
referred to as internal mould release additives. A balance of
internal and external lubrication leads to increased production
rates and/or reduced energy.
Processing Aid- Multifunctional
additive to enhance flow and to improve dispersion of fillers
in processing filled polymer compounds.
Antistatic Agent- Additive
migrate to the surface to dissipate static charge through association
with moisture in the air.
Slip
Additive- Inhibits
polymer film from sticking to itself and other surfaces such as
converting equipment.
Dispersion
Aid-
Aids in the uniform dispersion of additives such as pigments in
colour concentrate formulations.
Viscocity Depressant-
Additive, having good compatibility with PVC, to reduce the
viscocity of PVC paste used for application like Coating, Dip-moulding
etc.
Antifog Agent-Additive
migrates to the polymer surface to prevent the formation of
visible condensation. It is designed to have a controlled
solubility in order to provide a reservoir of material that
continuously migrates to, and is lost at the surface.
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