Lowering the percolation threshold in carbon black-filled polymer composites Conference Paper

abstract

• In an effort to lower the percolation threshold of carbon black-filled polymer composites, various polymer microstructures were examined. Composites prepared with a polyvinyl acetate (PVAc) latex and a poly(vinyl acetate-ethylene) water-dispersible powder showed a significantly lowered percolation threshold relative to an equivalently prepared composite that used a polyvinyl alcohol (PVA) solution to form the matrix phase. The percolation threshold of the dispersion-based composites occurred at 5 vol.% carbon black, while the equivalent solution-based composite produced a threshold at 14 vol.%. By excluding the carbon black from regions occupied by polymeric particles, the dispersion-based composites lead to preferential aggregation of carbon black, as evidenced by SEM, and a lowered percolation threshold.

authors

• Grunlan, Jaime

published proceedings

• ORGANIC/INORGANIC HYBRID MATERIALS II

author list (cited authors)

• Grunlan, J. C., Gerberich, W. W., & Francis, L. F.

complete list of authors

• Grunlan, JC||Gerberich, WW||Francis, LF

publication date

• December 1999

published in

• MRS Online Proceedings Library  Journal

International Standard Book Number (ISBN) 10

• 1-55899-483-1

start page

• 383

end page

• 387

volume

• 576