Date on Master's Thesis/Doctoral Dissertation


Document Type

Master's Thesis

Degree Name

M. Eng.


Chemical Engineering

Committee Chair

Ernst, R. C.

Committee Co-Chair (if applicable)

Williams, G. C.

Committee Member

Williams, G. C.

Committee Member

Williams, R. A.

Committee Member

Barnes, W. R.


The purpose of this investigation was to determine quantitatively the effect of pigmentation on the film properties of ethocel lacquer. This study was confined to the determination of tensile strength, percentage elongation at failure, softening and melting points of the films. Pigments were ground in the ethocel lacquer containing three parts ethocel, one part 276V-9 Dow resin and sixteen parts solvent by weight. Softening and melting points of the films were determined and were found to increase uniformly with increasing amounts of the pigments. The tensile strength of ethocel film with titanium dioxide as a pigment increased from 317 Kgm/Cm2 to 425 Kgm/Cm2 by adding 2 percent followed by a decrease. Similar but less marked results were observed with lithopone, barytes and dicalite.