Introduction of Pearlescent Pigments Methods of Making Masterbatches, Formulation and Processing of Pearlescent Masterbatches

Document Type : compile

Authors

Iran polymer and petrochemical institute, P.O. Box 14965/115, Tehran, Iran

Abstract

Pearlescent pigments are a special kind of natural or synthetic materials that are divided into two categories without a substrate (bismuth oxychloride, iron mica oxide, and titanium dioxide sheets) and a coated substrate (natural mica coated with metal oxides such as titanium dioxide, iron oxide, and aluminum oxide). Pearlescent pigments due to their special properties such as creating different colors by changing the angle of view, high heat resistance, high resistance to penetration, and brilliance are used in the form of pearlescent masterbatches in various industries such as plastic and packaging, cosmetics, automotive, textile, etc. Today, the use of masterbatches is increasing due to various reasons such as improving the dispersion and distribution of particles, excellent product quality, reducing the production costs, the health issues of employees, etc. Masterbatches are concentrated compounds that are added to polymers to make and improve color properties, as well as reduce the production cost. Masterbatch consists of three components: polymer, pigment or filler, and compatibilizing agent. Among the various methods of making masterbatches, the most common method is use of twin screw extruders (generally twin screw extruders). In general, 3 methods of pre-mixing, divided feeding, and color matching are used to make masterbatch with an extruder. The aim of this article is to investigate pearl pigments, general methods of making plastic and pearl masterbatches, and their applications in various industries.

Keywords

Basparesh
Volume 14, Issue 2 - Serial Number 51
September 2024
Pages 41-48

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