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Shear Induced Interactions Cause Polymer Compression
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DOI：10.1038/s41598-020-62297-0.png)
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摘要
En 中文
Shear induced particle pressure occurs in concentrated suspensions of particles. Importantly, the significance of the shear induced particle pressure has not been recognized in polymer rheology. The shear induced particle pressure results in an inward pressure on the polymer chains resulting in a shear dependent compressive force. The analytical form of the force balance equations that incorporate the effect of shear induced particle pressure predict a reduced polymer blob size and reducing viscosity with increasing shear rate as has been observed experimentally. Power law behavior is found for the viscosity in accord with the general observations for concentrated polymer rheology.
Keyword:
PAIR DISTRIBUTION FUNCTION
PRESSURE-DRIVEN FLOW
CONCENTRATED SUSPENSIONS
DILUTE SUSPENSION
FLEXIBLE POLYMERS
RHEOLOGY
DYNAMICS
BIREFRINGENCE
VISCOSITY
SPHERES
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期刊
IF:
3.9
论文数:
27.9W
被引数:
83.5W
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