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    Rheological Investigation on a Polypropylene/Low Density Polyethylene Blending Melt

    Huayong Liao1,2,3,*, Jing Gao1,2,3, Chunlin Liu1,2,3, Guoliang Tao1,2,3
    Journal of Polymer Materials, DOI:10.32604/jpm.2024.053021
    Abstract Polymer blending with co-continuous morphology has garnered the interest of many researchers, but corresponding rheological models are rarely presented. In this study, the dynamic rheological behavior of a blend of polypropylene (PP) and low-density polyethylene (LDPE) in the ratio of 50/50 wt% is investigated, and a rheological model suggested by Yu et al. is used to fit the dynamic modulus. The rheological measurement shows that at low frequency, pure PP has higher complex viscosity and dynamic modulus than LDPE. SEM images reveal that the morphology among the 40/60 and 60/40 blends is non-dispersive. The fitting… More >