2K6 EN 103: ENGINEERING CHEMISTRY
Module I High Polymers & Lubricants (13 hours)
Classification of polymers. Polymerization – chain polymerization, condensation polymerization, copolymerization, coordination polymerization, electrochemical polymerization, metathetical polymerization, group transfer polymerization. Mechanism of polymerization. Polymerization technique – bulk polymerization, solution polymerization, suspension polymerization, emulsion polymerization, melt polymerization, solution polycondensation, interfacial condensation, solid and gas phase condensation. Structure – property relationship of polymers. Compounding and moulding of polymers. Important plastics – their production, properties and uses. Thermoplastic resins (PE, PP, PVC, PVA, PMMA, PS), thermosetting resins (Bakelite, Urea formaldehyde, Silicones), fibers (nylon 6, nylon 66, cellulose fibers, Dacron, Kevlar) Elastomers – Natural rubber – production, structure, properties, compounding & vulcanization. Synthetic rubbers – (buna, neoprene, thiokols, polyurethane, silicon rubber) Lubricants: Theory of friction, mechanism of lubrication, classification of lubricants – liquid, semisolid, solid and synthetic lubricants. Properties of lubricants( viscosity index, cloud point, pour point, flash point, fire point, corrosion stability, emulsification, aniline point). Additives and their functions.
Module II Electrochemistry (11 hours)
Electrode potential and electromotive force. Nernst equation for electrode potential. Measurement of EMF and electrode potential. Types of electrodes. Primary and secondary reference electrodes. Electrochemical series. Galvanic cells and concentration cells. Determination of pH using glass electrode. Secondary cells – lead acid cells, Ni – Cd cell, Edisson cell. Fuel cell – hydrogen – oxygen fuel cell. Acid and bases. Lowry – Bronsted and Lewis concepts. Concept of pH – pH measurements. (Instrumental details required) Dissociation constants – potentiometric titrations. Buffer solutions. Henderson equation for calculation of pH.
Module III Corrosion (11 hours)
Corrosion and its control – Theories of corrosion. Different types of corrosion. Factors affecting corrosion. Protective coatings. Self protecting corrosion products. Pretreatment of surfaces. Coating – organic, inorganic coatings – galvanizing, tinning, electroplating, electroless plating, anodisation, passivation by chemical treatment, cathodic protection. Properties and functions of ingredients in paints, varnishes andenamels.
Module IV Fuels & Environmental Pollution: (11 hours)
Classification of fuels – solids, liquid & gaseous fuels, Determination of calorific value. Solid fuels – wood, peat, lignite, coal, Proximate analysis, Petroleum and its refining, fractions and their uses. Cracking and reforming. Petrol knock and octane number. Gaseous fuels – Natural gas, coal gas, acetylene. Combustion calculation. Air – fuel ratio. Pollution – Classification (global, regional and local with examples). Air pollution- Primary and Secondary pollutants. Source, effects and control of air pollution. Water pollution – Pollutant classification – organic, inorganic, suspended, metals and their monitoring. Domestic sewage and industrial wastes. Control of water pollution. Hazardous wastes. Hard and soft water. Analysis of hardness. Quality of water for domestic use and boiler feed. Problem with hard water in boilers. Softening of water – internal and external conditioning of water.
Reference Books
1. V. Raghavan (2000) Material Science and Engineering – A first course, Prentice Hall of India Pvt. Ltd. New Delhi.
2. J. C. Kuriakose & J. Rajaram. Chemistry of Engineering & Technology. Vol. I & II Tata McGraw Hill, New Delhi.
3. A K De (1996) Environmental Chemistry. NewAge International Pvt. Ltd. New Delhi.
4. B R Gowariker etal (2000) Polymer science. New Age international Pvt. Ltd. New Delhi
5. S. Glasstone (1997) Text book of Physical Chemistry. MacMillian, New Delhi.
6. Shashi chawla A text book of Engineering Chemistry. Dhanpath Rai & Co. Pvt. Ltd. New Delhi