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Technology of Varnish Paint Materials and Film Coating
Major: Chemical Technologies of Polymeric and Composite Materials Processing
Code of subject: 7.161.06.E.024
Credits: 5.00
Department: Chemical Technology of Plastics Processing
Lecturer: Associate professor Bratychak Mykhaylo Mykhaylovich
Semester: 2 семестр
Mode of study: денна
Завдання: The study of an educational discipline involves the formation of competencies in students of education:
professional competences of a professional direction
- FCS 2.1. The ability to use professional knowledge, skills and abilities to analyze, evaluate and design technological processes and equipment for the production of high-molecular compounds, varnishes and paints
- FCS2.3. The ability to use professionally profiled knowledge, abilities and skills in the field of natural and scientific disciplines for the analysis, evaluation and design of technological processes and equipment for the production of high molecular weight compounds.
Learning outcomes: As a result of studying the academic discipline, the student must be able to demonstrate the following learning outcomes:
- characteristics and purpose of the components of paint and varnish materials and coatings, their main properties, principles of classification and designation, chemistry of obtaining the most important film-formers, production technologies, properties and areas of application of the most common film-formers, varnishes, enamels, primers and putties, surface preparation methods before applying coatings, methods of applying and drying paint and varnish materials, safety techniques for synthesis, preparation, application and drying of paint and varnish materials;
- be able to obtain and form polymer coatings with specified properties, apply and cure paint materials in various ways, determine the most important physico-chemical and corrosion indicators of various paint materials and coatings, give their comparative characteristics in specific operating conditions, determine the effectiveness of the use of one or another material .
PR8. Critically understand aspects of the production of high molecular weight compounds and methods of improving the technological process. Lectures, laboratory classes, independent work Current control - oral survey in laboratory classes, testing in the National Emergency Service.
PR10. Develop and modernize processes for the synthesis of high-molecular compounds in accordance with modern innovative technologies. Lectures, laboratory classes, independent work Current control - oral survey in laboratory classes, testing in the National Emergency Service.
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KOM1. Clear and unambiguous presentation of one's own knowledge, conclusions and arguments to specialists and non-specialists, in particular, to students. Lectures, laboratory classes, independent work Current control - oral survey in laboratory classes, testing in the National Emergency Service.
Exam - written survey, test control.
AiB1. Managing work or learning processes that are complex, unpredictable and require new strategic approaches. Lectures, laboratory classes, independent work Current control - oral survey in laboratory classes.
Required prior and related subjects: Organic chemistry
Processes and devices of the chemical industry
Technological processes of synthesis and modification of polymers
New technologies in the production of high molecular weight compounds
Summary of the subject: The principles of classification and designation, chemistry of obtaining the most important film-formers, production technology, properties and areas of application of the most common film-formers, varnishes, enamels, primers and putties, general information about paint and varnish materials are described. Paint materials based on polycondensation resins. Paints and varnishes based on polymerization resins. Paints and varnishes based on natural film formers. Water emulsion paints and varnishes. Powder paint materials. Methods of applying paint and varnish materials. In laboratory work, the following are studied: Determination of the conditional viscosity of paint and varnish material. Determination of roofing ability (breakability) of paint and varnish material. Methods of determining the adhesion strength of the paint coating. Determination of chemical resistance of paint coating. Production and research of film-forming substances. Determination of the content of film-forming substances in paint and varnish materials. Determination of surface tension of solutions of paint and varnish materials.
Опис: Introduction. General information about paint and varnish materials. The main components of paint and varnish materials. Classification of paint and varnish materials. The marking system for paint and varnish materials. Properties of paint and varnish materials obtained from solutions. Properties of powder paint materials.
Production of polymer coatings. Formation of coatings from solutions. Formation of coatings that proceed without chemical transformations. Formation of coatings from aqueous dispersions of polymers. Formation of coatings from organic dispersions of polymers. Classification and properties of polymer coatings.
Natural film-forming substances and paint materials based on them. Vegetable oils and their processing products. Natural resins. Natural high molecular weight compounds.
Synthetic film formers and paint materials based on them. Alkyd oligomers and their modification products. Paints and varnishes based on them. Aminoformaldehyde oligomers and paint materials based on them.
Phenolformaldehyde oligomers and paint materials based on them. Unsaturated oligoethers. Polyacrylates and paint materials based on them. Epoxy oligomers.
Polyurethanes and paint materials based on them. Chlorine-containing polymers (polyvinyl chloride, chlorinated polyethylene, chlorinated polyethylene, chlorinated rubber) and paint materials based on them. Polyvinyl acetals. Organosilicon polymers.
Water-dispersed paint materials. Water dispersions of polymers. Artificial aqueous dispersions of polymers. Modified polymers in aqueous dispersions.
Lakofaorb materials that can be diluted with water. Alkyd oligomers. Maleinized oils. Epoxy ethers. Urea- and melaminoformaldehyde oligomers. Polyurethanes.
Powder materials. Thermosetting film formers. Thermoplastic film formers. Polyolefin fluoroplastic powder paints. Powder paints based on cellulose ethers.
Technology of obtaining polymer coatings. Methods of applying paint and varnish materials. Curing of polymer coatings.
Assessment methods and criteria: Current control of students' knowledge is carried out by means of surveys in laboratory classes throughout the semester; the final control of students' knowledge is carried out by taking an exam.
Control of students' knowledge is an organic component of the educational process. The main tasks of knowledge control include:
- increasing students' motivation for systematic active work during the academic year, reorientation of their goals from receiving a positive assessment to the formation of sustainable knowledge, skills and abilities;
- systematization of knowledge and active assimilation during the academic year;
- preventing a gap between the tasks submitted for control and the discipline program;
- openness of control: familiarization of students at the beginning of studying the discipline with control tasks and all forms of control measures and their evaluation criteria;
- overcoming the elements of subjectivism in the assessment of knowledge, which is provided by the preparation of control tasks and tests in written form using a 100-point rating scale;
- provision of proper conditions for studying the program material and preparation for control measures, which are achieved by clearly demarcating them in terms of content and time;
- expansion of opportunities for comprehensive disclosure of students' abilities, development of their creative thinking.
During the study of the discipline "Chemical technologies of varnishes and paints" current and final control of students' knowledge is used. The latter is carried out in the form of an exam. The specified forms of control are closely interrelated and are organized in such a way as to stimulate the effective independent work of students during the semester and ensure an objective assessment of their knowledge.
The object of assessment of students' knowledge is the program material of the discipline of various nature and level of complexity, the assimilation of which is checked accordingly during the current control and examination.
The task of current control is to check the understanding and assimilation of certain material, the developed skills of performing laboratory work, the ability to independently process texts, the ability to understand the content of a topic or section, the ability to publicly or in writing present certain material.
The task of the exam is to check the student's understanding of the program material as a whole, the logic and relationships between individual sections, the ability to creatively use the accumulated knowledge, the ability to form one's attitude to a certain problem of the educational discipline, etc.
Критерії оцінювання результатів навчання: Grades for work in practical classes are assigned on the basis of determining the correctness, completeness and independence of the solutions obtained for each of the tasks:
- the obtained results are correct, complete and obtained independently - 100% of the maximum mark;
- the obtained results are correct, complete and obtained with significant help and correction of the teacher - 90% of the maximum mark;
- the solutions obtained in the work are correct, but incomplete and obtained with significant help and correction of the teacher - 75% of the maximum mark;
- the obtained results contain errors, but the approach to obtaining a decision and the application of tools for obtaining a decision are correct - 50% of the maximum score.
Current and control testing is carried out in the National Security Service and the grade is automatically assigned for all test tasks. For an essay-type task, 100% of the maximum score is given in the manual evaluation mode for a completely correct and complete solution, 85% - a generally correct solution with minor errors in calculations; 75% - for an incomplete solution with some errors for a generally correct approach to the solution; 50% - in the presence of significant errors and an incomplete solution with the correct approach; 30% - for formulating the right approach without implementing the decision.
The exam is conducted in written and oral form (the exam test is valued at 70 points, the oral component - 10 points).
The oral examination involves a sample question from different sections of the course and the completion of simple tasks.
Порядок та критерії виставляння балів та оцінок: 100-88 points - certified with an “excellent” grade - High level: the student demonstrates an in-depth mastery of the conceptual and categorical apparatus of the discipline, systematic knowledge, skills and abilities of their practical application. The mastered knowledge, skills and abilities provide the ability to independently formulate goals and organize learning activities, search and find solutions in non-standard, atypical educational and professional situations. The applicant demonstrates the ability to make generalizations based on critical analysis of factual material, ideas, theories and concepts, to formulate conclusions based on them. His/her activity is based on interest and motivation for self-development, continuous professional development, independent research activities, implemented with the support and guidance of the teacher. 87-71 points - certified with a grade of “good” - Sufficient level: involves mastery of the conceptual and categorical apparatus of the discipline at an advanced level, conscious use of knowledge, skills and abilities to reveal the essence of the issue. Possession of a partially structured set of knowledge provides the ability to apply it in familiar educational and professional situations. Aware of the specifics of tasks and learning situations, the student demonstrates the ability to search for and choose their solution according to the given sample, to argue for the use of a particular method of solving the problem. Their activities are based on interest and motivation for self-development and continuous professional development. 70-50 points - certified with a grade of “satisfactory” - Satisfactory level: outlines the mastery of the conceptual and categorical apparatus of the discipline at the average level, partial awareness of educational and professional tasks, problems and situations, knowledge of ways to solve typical problems and tasks. The applicant demonstrates an average level of skills and abilities to apply knowledge in practice, and solving problems requires assistance, support from a model. The basis of learning activities is situational and heuristic, dominated by motives of duty, unconscious use of opportunities for self-development. 49-00 points - certified with a grade of “unsatisfactory” - Unsatisfactory level: indicates an elementary mastery of the conceptual and categorical apparatus of the discipline, a general understanding of the content of the educational material, partial use of knowledge, skills and abilities. The basis of learning activities is situational and pragmatic interest.
Recommended books: Educational and methodological support
1. Course of lectures "Chemical technologies of varnishes and paints"
2. Methodical developments for performing laboratory work.
Recommended reading
1. Ivanov S.V., Samarska T.G. Paint and paint materials for the purpose of K.: Type of National. aviation "NAU-Druk" University, 2009. - 52 p.
2. M.M. Bratychak, Yu.P. Hetmanchuk Chemical technology of the synthesis of VMS: Training. manual. Lviv: Publishing House of Lviv Polytechnic University, 2009. 495 p.
3. General chemical technology: Textbook/ V.T. Yavorskyi, T.V. Perekupko, Z.O. Znak, L.V. Savchuk. - Lviv: Publishing House of the National University "Lviv Polytechnic", 2005, - 552p.
4. Humenetsky T.V. Physico-chemistry of polymers: textbook. / T.V. Gumenetskyi, V.E. Levitskyi, O.V. Suberlyak. - Lviv: Rastr-7, 2020. -420 p.
5. Suberlyak O.V. Theoretical foundations of chemistry and technology of polymers: Teaching. manual / O.V. Suberlyak, V.Y. Skorokhoda, N.B. Semenyuk – Lviv: Publishing House of Lviv Polytechnic, 2014. – 336 p.
Information resources
1. http://repository.dnu.dp.ua:1100/?page=inner_material&id=1894
2.https://evnuir.vnu.edu.ua/bitstream/123456789/19529/3/osn_proekt.pdfН
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