Compatibilization
Compatibilization is a crucial point, which needs a good understanding and a fine control to success in the elaboration of your material or formulation. Our linkers can be used to tailor the affinity of your surfaces with gas, solvents, or complex media.
(Nano)particles and aggregation
Particles, whatever their sizes, and other powders are key components for various scientific and technologic areas used as fillers or additives. These materials are used in numerous domains for their inherent properties: e.g., as pigments in paints, coatings, and cosmetics industries, in advanced materials for their fire behavior, rheology improvements, and mechanical properties.
Increasing their stability in dispersion in chosen organic and aqueous media is crucial to permit the optimal use of such compounds. Compatibilization is helpful to avoid undesirable agglomeration: the dispersed particles in liquid phase stick together and sometimes sediment or form undesirable clusters.
Surface properties
The unwanted aggregation and instability of particles lead to difficulties to correctly apply the formulation or result in inhomogeneity issues. Surface functionalization of (nano)particles is an easy way to increase their affinity with various media and even allows dispersion in other solvents.
https://doi.org/10.1021/acs.langmuir.5b02833
Key factors – such as polarity, surface charges, chemical groups – influence and determine the particle behavior in their dispersion medium. SiKÉMIA offers to modify the surface properties of your particles to increase their stability, avoid aggregation, facilitate their dispersion, or compatibilize them with your dispersion medium: polymeric matrix, organic liquid, aqueous medium, specific formulation, etc.
Contact us to discuss your needs.
In this way, the wettability of powders and particles can be tailored: enhanced or decreased depending on your needs. Functional issues linked to particles aggregation can be limited by controlling key parameters playing a crucial role such as immobilizing charged molecules at the surface or having a high sterical hindrance.
