So-called "coupling agents" are used to provide better mechanical properties to filled plastic materials. The additive contains a multitude of two different types of functional groups. One type of these groups is capable of developing a bond on the fillers being used, while the other type reacts with the surrounding polymer matrix. This significantly increases the interaction between the filler particles and the plastic material, which leads to significantly improved physical properties such as E-modulus, flexural strength, and compressive strength. In some cases, the additives can also be used to improve the coating adhesion on various substrates.
|BYK‑C 8000||Reactive copolymer with functional groups||18 %||Radical curing systems, polymer concrete, and solid surfaces, as a metal/glass adhesion promoter in coatings|
|BYK‑C 8001||Copolymer with surface-active groups||> 90 %||Glass-fiber reinforced epoxy resin systems|
|BYK-C 8002||Reactive copolymer with filler-affinic groups||30 %||ATH-filled acrylate systems|
These days, plastics are used in a multitude of structures, e.g. to reduce weight in the automotive industry. In order to compensate for the lower mechanical strength when compared, for example, with metal, these plastics are reinforced with fibers. The better and the more evenly these fibers are incorporated into the polymer matrix, the greater the performance of the reinforced plastic and its mechanical properties.
SCONA plastic modifiers are produced using a patented solid-phase grafting, enable a better distribution of the fillers in the polymer matrix and increase the mechanical bonding. This facilitates the compounding and increases the mechanical strength.
Detailed information about SCONA plastic modifiers and their application possibilities can be found on the page Additives for Thermoplastics.
Glass fibers in polypropylene and their integration into the PP matrix
|Glass Fibers in Polypropylene||Better Incorporation in the PP Matrix|
when using SCONA Coupling Agents