ORCID Identifier(s)

0000-0003-0387-5964

Graduation Semester and Year

2019

Language

English

Document Type

Thesis

Degree Name

Master of Science in Aerospace Engineering

Department

Mechanical and Aerospace Engineering

First Advisor

Ashfaq Adnan

Second Advisor

Kamesh Subbarao

Abstract

Now a days the use of metal nanoparticle infused polymer is becoming widespread, since the development of polymer with enhanced thermal properties are being used for the growth of electronic packaging industry. In this study, copper nanoparticles are mixed with the Acrylonitrile Butadiene Styrene (ABS) thermoplastic in varying mass proportions, to observe the changes in thermal and structural properties of ABS. As expected, the extruded wire with high nano-particle concentration exhibited much higher thermal conductivity than its raw ABS form. For the case of 2% copper nanoparticle infused ABS using one dimensional steady state heat flux method though extrude wire samples and found out approximate increase in 30% of the thermal conductivity, whereas the conductivity of the 3D printed part decreases when compared to thermal conductivity of ABS printed part. Coming to the mechanical aspect of this study it has been observed that the tensile strength of such 3D printed composite ABS samples is enhanced with very small increment of nano-particle proportions, but beyond a specific optimum nano-particle mass proportion the tensile strength starts deteriorating. From this study, an optimum mass proportion of copper nanoparticles in ABS can be reported so as to achieve an efficient combination of thermal and structural properties as per the requirements. Large scale 3D printing and manufacturing of metal infused polymer is promising and can be used to produce components with enhanced properties rapidly at such a scale.

Keywords

3D printing, ABS, Copper nano-particles, tensile test, thermal conductivity.

Disciplines

Aerospace Engineering | Engineering | Mechanical Engineering

Comments

Degree granted by The University of Texas at Arlington

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