By influence of heat, high shear stress and
chemical attack, the polymeric bonds in the polymeric chains
can can be cracked.
The break of polymeric bonds leads to the formation
of free radicals. These radicals initiate a chain reaction,
the auto-oxidation, which will cause many further breaks of
polymeric bonds. The result is asevere damage of the polymer.
The visible damages are discolouration, reduction
of transparency and gloss, blooming effect and finally cracks
on the surface.
Further the damages will cause a reduction
of the mechanical properties such as impact strength, elongation
at break and tensile strength.
antiox masterbatches contain
thermal stabilizers, which are able to inhibit the formation
of free radicals. Further, they inhibit the auto-oxidation
by existing radicals.
antiox provides mixtures
for most of the common thermoplastics. They are suitable for
all applications in extrusion and injection molding.
We will gladly advice you which anti-oxidant is suitable for