A pseudo-thermodynamic description of dispersion for nanocomposites.
ORAL
Abstract
Dispersion in polymer nanocomposites is determined by the kinetics of mixing and chemical affinity. Compounds like reinforcing filler/elastomer blends display some similarity to colloidal solutions in that the filler particles are close to randomly dispersed through processing. It is attractive to apply a pseudo-thermodynamic approach taking advantage of this analogy between the kinetics of mixing for polymer nanocomposites and thermally driven dispersion for colloids. Measured values of the pseudo-second order virial coefficient can be used to specify repulsive interaction potentials for coarse grain DPD simulations of filler/elastomer systems. In addition, new methods to quantify the filler percolation threshold and filler mesh size as a function of filler concentration are obtained.
A pseudo-thermodynamic description of dispersion for nanocomposites Y. Jin, et al. Polymer 129 (2017) 32-43.
Structural emergence in particle dispersions A. Mulderig, et al. Submitted Langmuir (2017).
Thermodynamic stability of worm-like micelle solutions K. Vogtt, et al. Soft Matter 13 (2017) 6068-6078.
A pseudo-thermodynamic description of dispersion for nanocomposites Y. Jin, et al. Polymer 129 (2017) 32-43.
Structural emergence in particle dispersions A. Mulderig, et al. Submitted Langmuir (2017).
Thermodynamic stability of worm-like micelle solutions K. Vogtt, et al. Soft Matter 13 (2017) 6068-6078.
*Resources of the Advanced Photon Source were used under Contract No. DE- AC02-06CH11357. This work was supported by the National Science Foundation through grants CMMI-1635865 and CMMI-1636036.
–
Presenters
-
Yan Jin
- Univ of Cincinnati