Viscoelastic phase separation in soft matter and foods
نویسندگان
چکیده
منابع مشابه
Kinetics and morphologies of viscoelastic phase separation.
In this paper, the effects of relaxational bulk modulus and the average composition of polymers on the viscoelastic phase separation are investigated in detail. It is found that there are two typical morphologies, i.e., moving droplet phase and phase inversion, and the relaxation of the dynamical asymmetry and the amplification of the concentration fluctuation are responsible for the appearance...
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We numerically investigate viscoelastic phase separation in polymer solutions under shear using a time-dependent Ginzburg-Landau model. The gross variables in our model are the polymer volume fraction and a conformation tensor. The latter represents chain deformations and relaxes slowly on the rheological time giving rise to a large viscoelastic stress. The polymer and the solvent obey two-flui...
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In the classic theory of solid adhesion, surface energy drives deformation to increase contact area whereas bulk elasticity opposes it. Recently, solid surface stress has been shown also to play an important role in opposing deformation of soft materials. This suggests that the contact line in soft adhesion should mimic that of a liquid droplet, with a contact angle determined by surface tensio...
متن کاملPolymerization-induced viscoelastic phase separation in polyethersulfone-modified epoxy systems.
The polymerization-induced phase-separation process of polyethersulfone (PES)-modified epoxy systems was monitored in situ continuously on a single sample throughout the entire curing process by using optical microscopes, time-resolved light scattering (TRLS), scanning electronic microscopes (SEM), and a rheometry instrument. At specific PES content a viscoelastic transformation process of phas...
متن کاملESI ) for Soft Matter Phase Separation of 2 D Meso - scale Coulombic
Experimental Details: Materials Teflon (T) spheres (d T = 3.175 mm), Nylon-6,6 (N) spheres (d N = 3.175 mm), and sheets of aluminum (0.8 and 1.0 mm) were purchased from McMaster-Carr (Princeton, NJ). Circular frames were made by bending thin strips of aluminum (1.0 mm wide, 4–6 mm high, and 171–2 mm long) into circles of diameter 53.6 ± 0.2 mm. We glued the frames to square (75 mm) aluminum pla...
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ژورنال
عنوان ژورنال: Faraday Discussions
سال: 2012
ISSN: 1359-6640,1364-5498
DOI: 10.1039/c2fd20028g