Tensile modulus modeling of carbon-filled liquid crystal polymer composites
Document Type
Article
Publication Date
8-3-2009
Department
Department of Chemical Engineering; Department of Mechanical Engineering-Engineering Mechanics
Abstract
Electrically and thermally conductive resins can be produced by adding conductive fillers to insulating polymers. Mechanical properties, such as tensile modulus, are also important. This research focused on performing compounding runs followed by injection molding and tensile testing of carbon-filled Vectra liquid crystal polymer. The two carbon fillers investigated were Thermocarb synthetic graphite particles and Fortafil carbon fiber at varying filler amounts. The tensile modulus experimental results were compared to results predicted by several different models. It was found that the Halpin Tsai 2D Randomly Oriented fiber model provided the best fit to the experimental data. The degree of filler-polymer adhesion was also studied with nanoscratch tests for synthetic graphite and carbon fiber fillers in three polymers: Vectra, nylon 6,6, and polycarbonate. The adhesion trends seen in the nanoscratch tests showed qualitative agreement with the tensile modulus, and should be considered in formulating advanced tensile modulus models.
Publication Title
Polymer Composites
Recommended Citation
Keith, J.,
King, J. A.,
Miskioglu, I.,
&
Roache, S.
(2009).
Tensile modulus modeling of carbon-filled liquid crystal polymer composites.
Polymer Composites,
30(8), 1166-1174.
http://doi.org/10.1002/pc.20673
Retrieved from: https://digitalcommons.mtu.edu/michigantech-p/3822
Publisher's Statement
© 2008 Society of Plastics Engineers. Publisher’s version of record: https://doi.org/10.1002/pc.20673