Additives
Pigments(PG)
Pigments are organic or inorganic particles added to the polymer base to give a specific color or functional benefits the plastic.
Major performance properties of pigments for plastics are decided by their:
- Weatherability / Aging
- Light Fastness
- Warping / nucleation
- Transparency
Organic pigments refer to a wide range of chemical families and cover a wide spectrum of properties. They are mainly used for applications needing high tinting strength and brilliant shades while inorganic pigments are mainly useful where high opacity is needed.
Carbon Black
Carbon black is the most widely used black pigment for thermoplastic applications. Its small particle size and high oil absorption bring excellent color strength, cost-effectiveness, and ultraviolet performances. Thanks to its chemical purity, carbon black is a useful pigment for a variety of materials besides plastics, including elastomers, inks and surface coatings.
White Pigments
White pigment in plastics is mainly derived from Titanium Dioxide. TiO2 is widely used for its efficiency in scattering visible light, and imparting whiteness, brightness, and high opacity when incorporated into a plastic formulation.
