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The application of inverse gas chromatography to surface - coatings technology

出版	M. Kunaver, 1991
URL	http://books.google.com.hk/books?id=IVfzNAAACAAJ&hl=&source=gbs_api

註釋Inverse Gas Chromatography (IGC) has been used for the characterization of the materials involved in coatings formulations. The thermodynamic properties and interrelations between them have been studied. Lewis acid/base characterization of selected pigments has been carried out, clearly showing the basic character of the rutile $TiO_2 and quinacridone red pigments, the acidic character of iron oxide Bayferrox yellow 3910 and the moderately acidic character of carbon black Flammurus 101 pigment. The same procedure has been applied to different polymers/oligomers. Epikote 828 epoxy resins has shown basic characteristics, Vesturit BL 915, which is linear polyester, has shown very strong Lewis acid character, while all the Cymel melamine resisins have shown strong basic characteristics, when the same procedure has been applied. The correlation between the logarithm of the weight fraction activity coefficient (ln \omega^\infty) and the solubility power of selected solvents has been studied for different polymeric/oligomeric resins. Thermosetting systems, before crosslinking and after the curing reaction was finished, has been studied also. Solvents, used because of their presence at the end of a drying/curing process still having good solubility in the system, can also be evaluated. The IGC technique described in this thesis, provodes much important information. They will help the coatings formulator and user to understand the interactions and thermodynamical properties of complex systems such as coatings.