Extensional flow of wormlike micellar solutions
[ 1 ] Instytut Technologii i Inżynierii Chemicznej, Wydział Technologii Chemicznej, Politechnika Poznańska | [ P ] employee
2020
chapter in monograph / paper
english
EN This chapter presents typical measurement results obtained for semidilute wormlike micellar solutions (WLM) using capillary breakup extensional rheometry. Experimental studies were carried out for aqueous solutions of a mixture of cocamidopropyl betaine and sodium dodecylbenzenesulfonate. Just like in shear flow, there is a high degree of qualitative similarity between extensional viscosity curves generated for semidilute solutions of polymers and WLM. The differences resulting from the different structure of polymer chains and WLM can be observed primarily at late times of thinning. The results presented in the literature also suggest that extensional rheology can be used to identify branching in wormlike micelle solutions.
09.05.2020
365 - 373
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