“chemical engineering”

ĶPI 422

Assistant Professor Velta Tupureina

Course description: 5 Credit units; 80 hours (48 lectures, 32 laboratoeijas)

Control forms: Exam; test
Course content:

• 
  Introduction: Polymers and plastics. Classification of polymers, structure, molecular weight. Raw materials, the choice of feedstock. Monomers and polymers from renewable resources.
  
• 
  General properties of the polymers. Advantages and disadvantages of polymers in comparison with other materials. Polymer properties depending on chemical structure, phase state and production technology. Relationship between polymer properties and main characteristics of macromolecules: length, flexibility, cross-linking degree and others. Regulation of polymer properties. Polymer additives: plasticizers, fillers, stabilizers, curing agents a.o.
  
• 
  Polymerization polymers and their plastics. Copolymers and their plastics. Most important representatives of industrial polymers: production, structure, properties, usage. Polyethylene, polypropylene, polystyrene, polyvinylchloride, ethylene copolymers, vinylacetate polymers and copolymers, polymers and copolymers of acrylic acid and its derivatives a.o.
  
• 
  Polycondensation polymers and their plastics. Most important representatives of industrial polymers: production, structure, properties, usage. Polyesters, polyamides, polycarbonates, polyurethanes a.o.
  
• 
  Network polymers: elastomers and thermosets. Amine and phenol - formaldehyde polymers copolymers of unsaturated polyesters, epoxy polymers, polyurethanes, polysiloxanes, elastomer based polymers. Plastics production from chemically modifieded polymers. Methods and peculiarity of chemical modification of polymers. Most important representatives of industrial polymers: production, structure, properties, usage. Chlorinated and sulphochlorinated polymers, polyvinylalcohol, polivinylacetals, ethers and esters of cellulose a.o.
  
• 
  Biopolymers. Production, properties, usage.
  
• 
  Plastics: elastomers, rubbers, plasticized systems, binders, coating materials, foams, adhesives a.o.
  
• 
  Polymer composites: filled, reinforced, laminates, hybrid composites.
  
• 
  Wares, films, sheets, fibers , profiles a.o.
  
• 
  Methods of processing and finishing of polymer materials. Extrusion, compression molding, injection molding, metallizing a.o.
  
• 
  Recycling of polymer materials
  

Literature:

1. 
   M.Kalniņš, E.Neimanis, V.Kaļķis. Lielmolekulārie savienojumi.- Rīga, Zvaigzne, 1981, 339 lpp. ( in Latvian).
   
2. 
   M.Kalniņš, Polimēru fizikālā ķīmija.- Rīga, Zvaigzne, 1988, 242 lpp. ( in Latvian).
   
3. 
   J.R. Fried. Polymer Science and Technology.- New Jersey, Prentice Hall PTR, 1995, pp. 509.
   
4. 
   J.M.Charrier. Polymeric Materials and Processing.-N.-Y., Oxford University Press, 1991,pp. 633.
   

Polymer materials processing

ĶPI 423

Assistant Professor Jānis Kajaks

Course description: 5Credit units; 80 hours (48 lectures, 32 laboratories)

Control formss: test, exam.
Course content:

• 
  Short characteristics of technological properties (TP) of polymer materials, TP defining and control methods of raw materials. Choice of processing methods, and technological parameters, their influence on productivity and quality of ready products. Classification of processing methods. Distinguishing of thermoplastics and thermosetting polymers processing. Equipments for fabricating materials and produced products. The main methods of thermosets processing: compreshion moulding and injection moulding : technoloal schemes and parameters. Thermoplastic materials processing methods: extrusion, injection moulding, thermoforming and etc. Choice of technological parameters, their influence on productivity, structure, properties and quality of ready products. The main technological calculations. Productivity and quality of products - the main parameters of chosen equipment and technology high level. Perspective polymer materials processing methods. New technologies creating basical principles. The most progresive methods of leading and regulating of processing technological parameters, programmed control of ready products quality during processing process with simultaneously correction of technological parameters and etc.
  

Literature:

1. 
   J. Kajaks, V. Tupureina Metodiskie norādījumi kursa projektēšanai * Iekārtas un plastmasu pārstrādes rūpnīcu projektēšanas pamati * 1. daļa Rīga, RTU, 1990.- 48 lpp. (kr.val.)
   
2. 
   J. Kajaks, V. Tupureina Metodiskie norādījumi kursa projektēšanai * Iekārtas un plastmasu pārstrādes rūpnīcu projektēšanas pamati * Aprēķinu piemēri, 2. daļa Rīga, RTU, 1990. - 78 lpp. (kr.val.)
   
3. 
   J. Kajaks Plastmasu pārstrādes iekārtas un projektēšanas pamati 1. un 2.daļas, Rīga, RTU, 1993.- 168 l. un 66 l.
   
4. 
   Plašs ( ap 10-15 grāmatu no katras pa 1-3 eks. ) klāsts ĶTF bibliotekā Āzenes ielā 14/24.
   

Polymer coatings.

ĶPI 424
Associated Professor Laimonis Mālers.

Course description: 3 Credit units; 48 hours ( 32lectures, 16 laboratories)

Control forms: exam
Course content.

• 
  Introduction. General information about polymer coatings. Polymer materials , useful for obtaining of coatings. Classification of coatings.History of coatings.
  
• 
  Physics and chemistry of formation of coatings. Surface and boundary processes during adhesive bonding of polymers with substrates. General characterization of solid surface. Properties of polymers, responsible for formation of coatings. Fundamentals of film formation ( with and without participation of chemical processes, from solutions, dispersions, melts ).
  
• 
  General properties of polymer coatings. Mechanical properties. Adhesion and internal stresses. Permeability and protective properties. Appearance and electrical properties. Physical and thermal properties. Aging of organic coatings. Parameters, having influence on it : temperature, radiation, chemicals. Biological degradation of coatings. Natural aging. Durability of coatings.
  
• 
  Basic application technologies of coating. Technology of coating and drying. Comparative evaluation of different application technologies. Modes of hardening of coatings and their comparative estimation.Technology and ecology of coatings.
  
• 
  Aplication technology for different substrates. Coatings on metals. Coatings for anticorrosive protection of metals. Coatings for non-metalic substrates.Coatings of special meaning.
  

Literature.

1. 
   G. Turner. Introduction to Paint Chemistry and Principles of Paint Technology. Chapman&Hall, 1993.
   
2. 
   Z.W.Wicks, Jr.F.Jones, S.P.Pappas. Organic Coatings: Science and Technology. 1.and 2.part. John Wiley & Sons, 1992.
   
3. 
   A. Jakovļevs. Laku - krāsu pārklājumu ķīmija un tehnoloģija. Ļ.,Ķīmija,1989 (in russion).
   
4. 
   S. Bagažkovs, N. Suhanova. Laku un krāsu pārklājumu tehnoloģijas praktikums. Ļ., Ķīmija, 1989 (in russion ).
   
5. 
   Jakovļevs u.c. Pulverveida polimèru materiāli un pārklājumi uz to bāzes.Ļ.,Ķīmija, 1979 (in russion).
   
6. 
   Paint and surface coatings.Theory and practice. Edit.R.Laumburne. Ellis Horwood , 1987 .