Slippery-sticky transition of interfacial fluid slip

Interfacial Stick-Slip Transition in Simple Shear of Entangled Melts

Biomimetic polyimide nanotube arrays with slippery or sticky superhydrophobicity.

In this paper, we report the fabrication of superhydrophobic polyimide (PI) nanotube arrays with different topographies, which possess slippery or "sticky" superhydrophobicity. The PI nanotube arrays were fabricated by the porous alumina membrane molding method. We regulated three kinds of solvent evaporation and drying processes, which controlled different congregated and noncongregated topogr...

Sticky and slippery collision avoidance for tele-excavation

Two n e w modes of real-t ime collision avoidance are presented wh.ich aid in the e.ffectiveness of remote tele-operation. S t i cky coll ision mode improves s y s t e m safety by disallowing contact wi th modelled obstacles. Slippery mode is used t o improve the eff iciency of -the process by reducing t h e required level of operator skill. B o t h modes execute an real-t ime and have been amp...

Interfacial slip in sheared polymer blends.

We have developed a dynamic self-consistent field theory, without any adjustable parameters, for unentangled polymer blends under shear. Our model accounts for the interaction between polymers, and enables one to compute the evolution of the local rheology, microstructure, and the conformations of the polymer chains under shear self-consistently. We use this model to study the interfacial dynam...

When do fluid membranes engulf sticky colloids?

Binding of a spherical colloid to a fluid membrane, which is an interplay between the energies of adhesion and elastic deformation, is studied within the framework of a Helfrich Hamiltonian. The solution of the full nonlinear shape equations for the membrane profile reveals a continuous binding and a discontinuous envelopment transition, the latter with a tension dependent substantial energy ba...