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Lecturer(s)
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Kalenda Petr, prof. Ing. CSc.
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Veselý David, doc. Ing. Ph.D.
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Kalendová Andréa, prof. Ing. Dr.
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Course content
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Characterization of organic binders for coating compositions. Copolymers water-based dispersions. Determination of pH and minimum film-forming temperature, assessment of coagulate content, dispersion stability against electrolytes and by dispersing. Powder filling compounds and colouring pigments characterization. Colouring pigments and filling compounds critical volume concentration calculation by way of direct and indirect method. Evaluation of the properties of coating compositions in liquid state. Normalised bases for coating compositions testing, coating compositions application properties, definition of brushability, degrees of spreading and levelling properties of various types of coating compositions, degree of creeping from vertical surface assessment, coating compositions consistency and discharge time assessment by means of Ford cup. Evaluation of properties of paint films during drying. Paint film properties evaluation. Coatings and paint films evaluation.. Imperfections of paint films - types, evaluation methods, colour tone change assessment and flouring of a paint film. Specification of paint films resistance to mechanical effects. Bending test on cylindrical pin, assessment of adherence level by means of grid method and assessment of adherence by contact gap. Specification of impact resistance, Olsen cupping test, coat porosity. Free paint films evaluation. Paint films water absorption test, assessment of permeability for water vapour, definition of tensile characteristics.
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Learning activities and teaching methods
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Laboratory work
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Learning outcomes
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Subject is drawn-up as Lab, which serves to knowledge development and practising of laboratory works and procedures in the coating compositions and organic coating field of expertise. Student gains experience with solvent-borne and water-borne connective base coating compositions preparation and characterization, acquires the physical-mechanical properties tests methodology and gains experiences with tests evaluation of simulated corrosive atmospheres on preset problems. The aim of the subject is to acquaint the student with laboratory preparation of various kinds of coating compositions, organic coating making and testing. Another aim is improve manual skills applicable to various preparations and synthesis carried out in research laboratories.
Graduate is able to participate in works in research and development laboratories specialized for paint matters and organic coats.
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Prerequisites
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Basic knowledge of inorganic, organic and macromolecular chemistry. Basic skill in chemical laboratory.
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Assessment methods and criteria
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Home assignment evaluation
There is an oral examination. Primary form of exam is the debate about selected themes. Level of acquired knowledge, conceptions and application acquirements is examined. Knowledge is examined by test during semester and its result is included into total classification.
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Recommended literature
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Černý F. Chemická technologie polymerů. SNTL Praha, 1982.
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Doležel B. Odolnost plastů a pryží. SNTL Praha, 1981.
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Kalendová A. Metody testování vlastností organických povlaků I. Univerzita Pardubice, 2001.
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Koleske V. Paint and Coating Testing Manual. Philadelphia, 1995.
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Mleziva J., Kálal J. Základy makromolekulární chemie. SNTL Praha, 1986. ISBN 04-621-86.
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Pluhař J. Nauka o materiálech. SNTL Praha, 1989.
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