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Title: Monte Carlo simulation of cylinders with short-range attractions

Journal Article · · AIP Advances
DOI:https://doi.org/10.1063/1.5040252· OSTI ID:1471638
ORCiD logo [1]; ORCiD logo [1]; ORCiD logo [2]; ORCiD logo [3];  [1]
  1. National Inst. of Standards and Technology (NIST), Gaithersburg, MD (United States)
  2. Univ. of Delaware, Newark, DE (United States). Center for Neutron Science and Department of Chemical and Biomolecular Engineering
  3. National Inst. of Standards and Technology (NIST), Gaithersburg, MD (United States); Univ. of Maryland, Rockville, MD (United States). Inst. for Bioscience and Biotechnology Research

Cylindrical or rod-like particles are promising materials for the applications of fillers in nanocomposite materials and additives to control rheological properties of colloidal suspensions. Recent advances in particle synthesis allows for cylinders to be manufactured with short-ranged attractions to study the gelation as a function of packing fraction, aspect ratio and attraction strength. In order to aid in the analysis of small-angle scattering experiments of rod-like particles, computer simulation methods were used to model these particles with specialized Monte Carlo algorithms and tabular superquadric potentials. The attractive interaction between neighboring rods increases with the amount of locally-accessible surface area, thus leading to patchy-like interactions. We characterize the clustering and percolation of cylinders as the attractive interaction increases from the homogenous fluid at relatively low attraction strength, for a variety of aspect ratios and packing fractions. Comparisons with the experimental scattering results are also presented, which are in agreement.

Research Organization:
Argonne National Lab. (ANL), Argonne, IL (United States). Advanced Photon Source (APS)
Sponsoring Organization:
National Institute of Standards and Technology (NIST); USDOE Office of Science (SC)
Grant/Contract Number:
AC02-06CH11357; DMR-0520547; DMR-1508249
OSTI ID:
1471638
Alternate ID(s):
OSTI ID: 1469733
Journal Information:
AIP Advances, Vol. 8, Issue 9; ISSN 2158-3226
Publisher:
American Institute of Physics (AIP)Copyright Statement
Country of Publication:
United States
Language:
ENGLISH
Citation Metrics:
Cited by: 6 works
Citation information provided by
Web of Science

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Cited By (2)

Dynamic arrest of adhesive hard rod dispersions journal January 2020
Tabular Potentials for Monte Carlo Simulation of Supertoroids with Short-Range Interactions journal January 2019