Polystyrene has a comparatively high thermal stability and can be processed mainly without stabilizers. However it loses this property upon copolymerisation, requiring the use of antioxidants. The use of oleochemical additives is usually limited to lubricants and separating agents, which must be added to the plastics in bigger quantities to ensure optimum workability. The effects of lubricants here are very similar to those in PVC, especially with some copolymers such as ABS.
LIGA ZINKSTEARAT 101/6
LIGA ZINKSTEARAT 101/6 is mainly used as a lubricant in polystyrene and ABS. This product meets the stringent demands for purity and solubility.
LIGA ZINKSTEARAT 104 G
Low-dust version of LIGA ZINKSTEARAT 101/6. Due to the uniform grain-structure LIGA ZINKSTEARAT 104 G shows good free-flowing and dosing properties.
LIGA ZINKSTEARAT ZPR-2-V
This stearate is suitable for use in many of the same applications as LIGA ZINKSTEARAT 101/6. However, it is derived from a vegetable fatty acid and is also available as kosher and halal grades.
LIGA MAGNESIUMSTEARAT techn.
Magnesium stearate has both internal and external lubricating and good separating properties. It is mainly used in the manufacture of injection moulding items. It is dosed in quantities of 0.2 to 0.8%.
LIGALUB 50 PE
This pentaerythritol ester is used as a separating and antiblocking agent. This product improves surface lustre with a very minimal effect on heat resistance. Dosed quantities of 0.5% result in a significant reduction in the sticking temperature.
LIGALUB 11 GE
LIGALUB 11 GE/90
Saturated partial ester of glycerine. When used as an internal lubricant, this product effects a clear reduction in the Vicat softening temperature.
LIGALUB GT
The product is suitable as a release agent and external lubricant for EPS.
