What are these new compatibilizers / coupling agents for?
Resalloy are unique statistic PS copolymers functionalized with reactive epoxy (or maleic anhydride, or carboxylic). These copolymers generally work at the surface and / or the interface to improve the adhesion or the compatibility between a non-polar styrenic-based substrate and a (reactive) polar substrate such as polycondensates, mineral fillers or fibers.
The Mw, the type and the concentration of reactive groups can be adjusted to match with your specific requirements.
Which polymer blends can I compatibilize?
As described below, Resalloy enables you to blend the following styrenic matrix (left) with another matrix or filler from the right:
For which functionalities can I value Resalloy?
As shown in the table below, this set of compatibilizers offer a broad range of functionalities, for various applications:
|Improve the performance
of Polymers blends
|Improve compatibility / Adhesion between a matrix and a filler||Increase adhesion between 2 substrates||Modify the rheology of a matrix / coating|
|Styrenic / polyester blends|
Which benefits can I expect from Resalloy?
To illustrate this, see below how an epoxy functionalized grade of Resalloy improves on morphology and on mechanical performance of a PS/PET blend.
|PS/PET||PS/PET with compatibilizer|
|Modulus||551 MPa||584 MPa|
|Yield Strength||38 MPa||55 MPa|
|Elongation at break||7.5%||11%|
|Melt flow index||19 gr/10 min @ 200°C, 5 kg||12 gr/10 min @ 200°C, 5 kg|