Module Content (2C)
- Plastics in industry
- Rubber and rubber products
- Persistent Organic Pollutants
- Paints and surface coating techniques
MOC 5008 : Industrial Organic Chemistry I (30L) - 2 credits
Under this course four industrial topics will be covered
Plastics in industry (8L)
Introduction to types of plastics, Structure property relationships, Glass transition temperature of polymers & how polymers are classified as plastics. Types of plastics: Thermosets & Thermoplastics & main types of plastics such as (low density, High density, linear low density), Polypropylene, Polyvinyl Chloride, Fluorocarbon Polymers, Polyethers, Polyesters, Polycarbonates, Polyamides, Polystyrene, Acrylic Polymers. Plastics in packaging. Permeability properties of different plastics and the suitability of different plastics for different packaging applications. Polyurethanes: Major areas of application, chemistry of polyurethanes – reactions of polyisocyanates with polyols. Applications of polyurethane in the garment industry. Types of materials used in polyurethane industry and structure/strength properties relationship.
Rubber and rubber products (8L)
Natural rubber & synthetic rubbers, Structure property relationships, Vulcanization of rubbers, Vulcanizing agents and vulcanization mechanisms, Other chemicals used in the process, Degradation and stabilization, Thermoplastic elastomers, Rubber processing techniques, Dry rubber and latex based industries.
Persistent Organic Pollutants (POPs) (6L)
What they are? Characteristics of POPs, Why they are important? Policies, Categories of POPs: PCBs, PAHs, PCDDs, PCDFs, PBDEs and organochlorine pesticides; structures, sources, adverse effects and mode of action. How their physico-chemical properties govern their environmental fate and behaviour, Source inventories, Source apportionment, Methods of detection.
Paints and surface coating techniques (8L)
Introduction to paints: Composition of a paint, ingredients used in paints, types of paints such as varnish, enamel paint, lacquer, emulsion paint, filler paints, primers, sealers, surfacers or undercoats, top coats etc., Dry film properties: Adhesion to substrate, hardness, flexibility, surface appearance, scratch resistance, solvent resistance etc., Drying of paint: drying with and without chemical reactions. Ingredients used in the paint industry: Pigments (key properties & functions of pigments, selection of pigments and incorporation of pigments into a paint), types of pigments (natural or synthetic pigments, inorganic or organic pigments), Colour matching, Liquids used in making paints and their properties, Additives used to make paints, Types of paints: Lacquers, emulsion paints & non aqueous dispersions, oils & alkyd paints, thermosetting alkyd, polyester and acrylic paints based on nitrogen resins, epoxy coatings, polyurethanes, unsaturated polyesters and acrylics.
Assessment : End of semester written examination 100%
- Lecturer: Dr. D. Aluthge
- Lecturer: Prof. Ramanee Wijesekera