TEM Studies of Coal Tars Effects of Stresses (Filtration and Decantation)
In order to understand the role of α, β, γ resins present in a Solmer tar, various techniques of separation (filtration and decantation) were used. The different fractions obtained from all the processes were studied by Optical Microscopy and by Transmission Electron Microscopy using a thin sectioning method. The β resins have an important role because, under stress, they are able to form flow preferred orientations of aromatic units (edge to edge associations of aromatic ring structures), which constitute a determinant factor in all the processes.
Copyright © 1990, Elsevier
Lafdi, Khalid; Bonnamy, S.; and Oberlin, Agnès, "TEM Studies of Coal Tars Effects of Stresses (Filtration and Decantation)" (1990). Chemical and Materials Engineering Faculty Publications. 91.