Open AccessMolecular dynamics simulation study on viscosity of silver nanoparticle printing ink
Author(s) -
Sha Li,
Lu Gao,
Hao Líu
Publication year - 2021
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/632/5/052033
Subject(s) - viscosity , rheology , inherent viscosity , materials science , temperature dependence of liquid viscosity , relative viscosity , shear rate , reduced viscosity , volume fraction , particle size , intrinsic viscosity , nanoparticle , inkwell , particle (ecology) , viscosity index , thermodynamics , composite material , nanotechnology , chemistry , physics , polymer , base oil , scanning electron microscope , oceanography , geology
Ink-jet printing and ink direct writing technologies show great advantages in printing electronics and structural customization of flexible materials. The viscosity of the ink will affect the flow rate of the working medium, is an important parameter in the process of deposition. In this paper, the research status of metal particle printing ink and its rheological properties were briefly introduced. Then, water-based silver nanoparticle ink was selected as the research object, and the base liquid system was established with the TIP4P/2005 water model. The shear viscosity of the base liquid was calculated, and the accuracy of the water model in predicting the viscosity was verified. Considering the size of the silver nanoparticles, volume fraction and temperature of the three factors on the viscosity, the effects of the equilibrium molecular dynamics based on Green - Kubo formula viscosity calculation method under different conditions was calculated respectively set shear viscosity of the ink, the conclusion is temperature, volume fraction and particle size on the shear viscosity value, viscosity values associated with negative temperature, volume fraction and the viscosity value is a positive correlation, and particle size has less effect on the viscosity, particle decreases, and the viscosity value increased slightly.