Course detail

Applied Colloid Chemistry

FCH-MC_AKCAcad. year: 2023/2024

Types of colloid systems and their relevance in consumer industry. Intermolecular interactions and their role in colloid systems, interactions on colloidal level. Formation, preparation, stability, and stabilization of colloids. Tensides - function, types, properties, detergency. Gels, emulsions, suspensions, foams, aerosols - structure, properties, preparation, characterization, practical applications. Adhesion and wetting, types of adhesives.

Language of instruction

Czech

Number of ECTS credits

Mode of study

Not applicable.

Guarantor

prof. Ing. Miloslav Pekař, CSc.

Department

Institute of Physical and Applied Chemistry (ÚFSCH)

Entry knowledge

Basic physical chemistry, particularly thermodynamics, electrochemistry, and colloid chemistry.

Rules for evaluation and completion of the course

Attendance is obligatory and may be checked. Studying is checked by active learning activities.
Credits are given on the basis of studenty activity in seminars and written assignments (numerical excercises, reports on practical demonstrations).
Evaluation is based on oral presentation and written exam. The presentation should report on selected topics from applied colloid chemistry in about 10 minutes, clearly presenting and emphasizing specific colloidal aspects and consequences of the selected topic. The presentation is followed by discussion (5 minutes) which can include also theoretical principles of presented topic. The presentation should be sent to the teacher electronically. The subject and its elaboration can be consulted with teacher and finally is presented during lectures. Suitable examples of presentation topics are given during the first lecture. The written exam consists of ten questions which should be answered in one phrase each and within the time limit of 50 min in total. Both parts has the same weight; in evaluation of presentations the technical quality has the weight 70% and the presentation quality 30%.
Attendance is obligatory and may be checked. Studying is checked by active learning activities.

Aims

Aim of the subject is to present theoretical foundations for behaviour of colloid systems and inform on colloids substantial for the applied chemistry from the viewpoint of their preparation, structure and properties.
Students will obtain genereal view of conditions of existence of colloidal systems, of properties and preparation of the most important types of those systems and their significance for industrial practice.

Study aids

Not applicable.

Prerequisites and corequisites

Not applicable.

Basic literature

Bartovská L., Šišková M.: Fyzikální chemie povrchů a koloidních soustav. VŠCHT, Praha 2005. (CS)

Type of course unit

Lecture

26 hod., compulsory

Teacher / Lecturer

prof. Ing. Miloslav Pekař, CSc.

Syllabus

1. Classification of colloids, their significance in consumer's industry. Intermolecular forces – overview.
2. Intermolecular forces – typology.
3. Intermolecular forces – mathematical treatment.
4. Intermolecular forces between colloidal particles.
5. Formation and preparation of colloids.
6. Stability and stabilization of colloids.
7. Tensides – functions, classes, properties, detergency.
8. Emulsions – structure, properties, preparation, characterization, practical application.
9. Gels – structure, properties, preparation, characterization, practical application.
10. Suspensions – structure, properties, preparation, characterization, practical application.
11. Foams – structure, properties, preparation, characterization, practical application.
12. Aerosols – structure, properties, preparation, characterization, practical application.
13. Adhesion and wetting, adhesive types.

Guided consultation in combined form of studies

26 hod., optionally

Teacher / Lecturer

prof. Ing. Miloslav Pekař, CSc.

Exercise

13 hod., compulsory

Teacher / Lecturer

Ing. Martin Kadlec
Ing. Adam Jugl, Ph.D.

Elearning

eLearning: currently opened course