English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Plus monthly

Global: Zendy Tools annual

Global: Zendy Tools monthly

Global: Zendy Free Plan

The time-dependent nonlinear visco-elastic and the visco-plasto-elastic properties of powder-polymer solution systems were studied. That is, the steady flow and dynamic visco-elastic properties of the disperse systems containing glass beads or aerosil powder in polystyrene solutions were investigated using a coaxial cylindrical viscometer and were analyzed using an analogue simulator designed by the authors laboratory. The remarkable rheopectic hardening properties were obtained, which indicate noticeable increase of the apparent viscosity with shearing time. And the Casson's equation could be applied to the equilibrium flow response. The second plateau defined by Onogi et al., was also observed in the complex shear modulus vs. frequency relation at the lower side of the rubbery plateau. In this case, the noticeable distortion of, a Lissajous' figure from an ellipsoid to parallelogram was observed, indicating a shifting nature from visco-elastic to plastic response. Two kinds of nonlinearity in the stress vs. strain relation were found; one was decided from a strain amplitude dependency and the other was determined as a distortion from ellipsoid.

Nonlinear Visco-Elastic Properties of Powder-Polymer Systems