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Lecturer(s)
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Milichovský Miloslav, prof. Ing. DrSc.
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Course content
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The basic terms of surface and colloid chemistry as surface tension and energy, specifical surface and degree of dispersity, 3D molecular and hypermolecular space nets - gels and fibrous nets. Surface processes at two-phase interfaces - Gibb`s adsorption isotherme. The main groups of substances influencing hyper-molecular behaviour - tenzides, polyelectrolytes, hydrophilic celulosic materials. Surface processes at three-phase interfaces - Young`s eq., adhesion work, wettability assesment of surfaces, characterization of surfaces according to Zisman, Fowkes-Goog and van Oss. Capillary processes - capillary elevation and depresion, cappilary phenomenons in wetted and non-wetted capillaries, Laplace`s eq. Capillary phenomennons as vapour tension of liquids in capillary - Kelvin`s eq. The processes in interfaces of dispersion systems - the theory of stability of dispersion systems. Intermolecular bonds in interfaces and 3D space nets - van derWaal`s and hydration forces. Kinetic of processes in dispersion systems. Practical hyper- and supra-molecular processes - gluening, theory of adhesion, paper hygroscopicity. Transport processes in porous materials - penetration, diffusion, capilary flow, impregnation. Rheology of liquid dispersion systems - basic types of flow curves, explanation and control this behaviour, coatings colours, anomalic temperature flow behaviour. Technologic aspects of papermaking systems - paper sizing, retention,rheosedimentation.
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Learning activities and teaching methods
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Monologic (reading, lecture, briefing), Demonstration
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- 45 hours per semester
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- 55 hours per semester
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- 80 hours per semester
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Learning outcomes
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The basic knowledge of surface and colloid chemistry being oriented to practical utilisation in chemical treatment of wood, i.e. chemical pulping, paper and paper converting.
Student after graduation of the subject is able to orient in problems of Hypermolecular nad Supramolecular Chemistry.
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Prerequisites
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The basic knowledge of physical chemistry and general chemistry
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Assessment methods and criteria
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Oral examination
Seminary work. Oral examination.
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Recommended literature
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Blažej A. a kol. Tenzidy. ALFA Bratislava, 1977. ISBN 63-173-77.
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Eklund, Dan. Paper chemistry : an introduction. Grankulla: DT Paper Science, 1991. ISBN 952-90-3607-8.
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Milichovský M. Povrchová a koloidní chemie - přednášky. ÚCHTML-ODCP, Univerzita Pardubice, 2009.
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Milichovský, Miloslav. Papírenská chemie : nadmolekulárně-chemické základy papírenské technologie. Pardubice: Vysoká škola chemicko-technologická, 1991. ISBN 80-85113-31-7.
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Neimo L. Papermaking Chemistry. Fapet Oy, Helsinky, Finland, 1999. ISBN 952-5216-04-7.
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William E. Scott. Principles of Wet End Chemistry. TAPPI PRESS, Technology Park/Atlanta, USA, 1996. ISBN 0-89852-286-2.
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