Mechanism of Anisotropy Occurrence in a Pitch Precursor of Carbon Fibres: Part I—Pitches A and B
Anisotropie pitch B issued from a coal tar pitch A is a mixture of isotropic phase 1 containing Brooks and Taylor mesophase spheres and an edge-to-edge type of gel 2.3. The latter is a two-phasedisperse system made of an anisotropic network 2 of carbon basic structural units (BSU), associated edge-to-edge, including isotropic microdroplets 3. The gel is quinoline soluble-toluene insoluble (QS.TI) (i.e., β resins and able to swell in tar).
Copyright © 1991, Elsevier
Lafdi, Khalid; Bonnamy, S.; and Oberlin, Agnès, "Mechanism of Anisotropy Occurrence in a Pitch Precursor of Carbon Fibres: Part I—Pitches A and B" (1991). Chemical and Materials Engineering Faculty Publications. 88.