What is a coupling agent?

Masterbatch is a compatibilizing additive with many names on the market, including polypropylene compatibilizer. This masterbatch often causes an incompatibility between the polymer phase and the inorganic or filler phase due to the non-polar structure of polypropylene and the polar structure of most fillers (calcium carbonate, glass fibers, talc). which causes problems such as dispersion and improper mixing in polymer materials, thus causing a significant reduction in product quality and loss of alloy properties. Here, a coupling agent is used to connect these two phases and improve the uniformity of the composition in the production process.

The compatibilizing masterbatch is known by names such as (coupling agent, grafted polyethylene and polypropylene, or maleic anhydride). This category of products are used for better compatibility of polyethylene and polypropylene with mineral materials to increase the physical and mechanical properties of polymers, dyeability of polymers and improve thermal properties of polymers.

Maleic anhydride is taken on polypropylene and polyethylene in three levels: low, medium and high, which are recommended for different uses.