Open AccessStudy the Thermal Properties of PVP/CuNPs Composite Prepared by Different Concentrations
Author(s) -
Asmaa H. Dhiaa,
Ahmed A. Taher,
Abbas Ali Diwan,
S. M. Thahab,
Rana J. Azez
Publication year - 2020
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/870/1/012153
Subject(s) - dispersant , materials science , thermal conductivity , nanoparticle , particle size , volume fraction , chemical engineering , viscosity , copper , composite number , particle (ecology) , colloid , thermal stability , scanning electron microscope , composite material , dispersion (optics) , nanotechnology , metallurgy , physics , engineering , oceanography , geology , optics
In this paper, copper nanoparticles (CuNPs) with a particle size of 40 nm were used to prepare a copper paste by using a liquid phase reduction method with Poly vinyl pyrrolidone (PVP) aqueous solutions in ethanol with different concentrations of CuNPs. Many thermal properties were characterized such as scanning electron microscopy (SEM), viscosity, thermal conductivity, PVP has properties such as a surface stabilizer, growth modifier, nanoparticle dispersant, and reducing agent. The influence of CuNPs particle volume fraction of (0.1, 0.2, 0.3 and 0.5%) with PVP on the thermal conductivity, pH and viscosity values of CuNPs./PVP were characterized. The experimental data show that the thermal conductivity of composites increases with the increase of filler. The enhancement of thermal conductivity is 62 % at 0.5% of the volume concentration at 25°C from the base PVP colloidal.