Determination of Hansen Parameters of Nanoparticles: A Comparison of Two Methods Using Titania, Carbon Black, and Silicon/Carbon Composite Materials

Hansen solubility parameters (HSPs), for particles understood as Hansen similarity parameters, can provide valuable information about the surface behavior of nanoparticles. In the past years, several methodologies are developed for scoring and ranking of probe liquids for HSP determination. Two methods available to carry out this determination in a structured way are based on integral extinctions (IE) by Suss et al. and particle size determinations by Anwar et al., respectively. In this study, these two methods of HSP determination are applied on titania, carbon black, and silicon/carbon composites. The differences in scoring and subsequent ranking of a probe liquid list are compared between both methods. Comparable HSPs from both methods are reported as a best-practice example and additional considerations that need to be considered to properly derive HSPs from the IE-based method are emphasized.

Automated summary

Hansen solubility parameters (HSPs), understood as Hansen similarity parameters, provide valuable information about nanoparticle surface behavior. Different methods for scoring and ranking probe liquids for HSP determination have been developed. This study applies two structured methods, based on integral extinctions (IE) and particle size determinations, to titania, carbon black, and silicon/carbon composites. The differences in scoring and ranking of probe liquids between the two methods are compared, and considerations for deriving HSPs from the IE-based method are emphasized.