Physicochemical Limitations of Capillary Models Applied to High-Concentration Polymer Solutions.

ABSTRACT: Advances in binder jet printing (BJP) require the development of new binder-powder systems, for example, to increase compatibility with better performance metal alloys or to increase the strength of parts using stronger binders. The dynamics of binder absorption are principally understood through capillary models. However, validation of these models in BJP has focused on variation of powder properties. Using a design-of-experiments approach and an optical observation method to track absorption of droplets, this study tests the influence of fluid properties on absorption time against the predictions of capillary models. Properties specific to polymeric binders, such as molecular weight and entanglement state, are also considered. Capillary models are found to be generally accurate in predic

SUBMITTER: Schlachter DA 

PROVIDER: S-EPMC8867559 | biostudies-literature | 2022 Feb

REPOSITORIES: biostudies-literature