ABOUT THE COURSE: A basic to intermediate level of learning on basic rheology and processing is embedded herein this course. Although the major focus goes with the elastomers/rubbers, the elementary rheology and processing of plastics, fibers and paints are also judiciously blended. The flavors on applied rheology and concepts of FEA based CFD for extrusion die design as a case study is also touched upon towards the end. Briefly followings contents covered through eight week lectures including numerical problem solving and practical sessions on rheometry and processing.Introduction to rheology, classification of complex fluid behavior, constitutive equations, and introduction to various fluid models. Application of shear stress-stain data to calculate volumetric flow rates and pressure drop. Flow between parallel plates and capillary with reference to wall slip, die swell and melt fracture. Basics onviscometry andrheometryare also included. Mixing in two roll, internal mixture as well as in kneaders, with machine details and standard operating procedural know- hows, extrusion, calendaring and molding will also be covered with reference to flow and deformation.INTENDED AUDIENCE: 3rd and 4th year UG, 1st and 2nd Year PG/PhDstudents studying in Polymer Science andTechnology/ Rubber Technology/ PlasticEngineering Science and Technology/ Industrial Chemistry/ Applied Chemistry/Metallurgical and Materials Engineering/ Materials Science/ Ceramic Science andTechnology/ Nanotechnology and Personals from various R&Ds of Indian Industries havingthe prerequisites as mentioned below. PREREQUISITES: For students: Basic backgrounds on polymers and fluids For R&D personals: UG or PG degree(s) in any ofthe mentioned subjects as mentioned earlierINDUSTRY SUPPORT: All rubber, plastics and paints manufacturing industries including but not limited toe.g.,Tata Steel R&D, Reliance, Haldia Petrochemicals, Tata Chemicals,IRMRA, CEAT Tyres, JK Tyres, JK Fenner, Apollo Tyres, Goodyear, Bridgestone, TATA Jamshedpur, Asian Paints, PidiliteIndustries, Berger Paints, Michelin Tyre, Phoenix Yule, ALP Overseas, BKT, AkzoNobel, Ralson,Evonik, Momentive, Sabic, Wacker, Saint Gobain, Cables and Conveyor Manufacturing Industries, MSMEs in Rubber, Paints, Fibres and Plastics Industries, Allied defense laboratories& CSIR Laboratories, CIPET, VSSC, ISRO ofGovt. of India
Rheology and Processing of Paints, Plastic, and Elastomer Based Composites
Indian Institute of Technology, Kharagpur and NPTEL via Swayam
Overview
Syllabus
Week 1: Basic introduction to polymer, structure process correlation, basic rheology,classification of fluids and flow through various channelsLecture 1.1 :Basic Introduction to polymerLecture 1.2 :Structure process correlationLecture 1.3 :Basic RheologyLecture 1.4:Classification of fluidsLecture 1.5:Flow of liquids through various channels 1Lecture 1.6:Flow of liquids through various channels 2Week 2: Introduction to various viscometers and rheometric techniques,implication of master curves and essence of time-temperature correlationLecture 2.1 : Introduction to viscometers and rheometersLecture 2.2 :Oswald viscometer, Brookfield viscometer, Falling piston viscometers, Falling ball viscometers, and MFILecture 2.3 :Mooney, Plastometer, ODR, MDRLecture 2.4:RPA, PPR, Capillary RheometerLecture 2.5:DMA- In-light of rheologyLecture 2.6:Master Curve and its implicationsWeek 3: Application of rheology in paints,plastics, fibres, and rubbersLecture 3.1 : Introduction to paints and importance of rheology in paintsLecture 3.2 :Rheology of paints 1Lecture 3.3 :Rheology of paints 2Lecture 3.4:Rheology of fibre plastics 1Lecture 3.5:Rheology of fibre plastics 2Lecture 3.6:Rheology of rubbers/elastomersWeek 4: Numerical problems and practical demonstration on various viscometers and rheometersLecture 4.1 :Some numerical problems related to basic rheologyLecture 4.2 :Practical demonstration on Brookfield viscometer and Oswald viscometerLecture 4.3 :Practical demonstration on Mooney viscometer, Plastimeter, ODR and MDRLecture 4.4:Practical demonstration on RPA and Capillary RheometerLecture 4.5:Practical demonstration on PPRLecture 4.6:Practical demonstration on DMAWeek 5: Importance of polymer compounding, die swell, normal force difference and significance of constitutive equationswith respect to rheological aspectsLecture 5.1 :Importance of compoundingand introduction to compounding ingredientsLecture 5.2 :Properties and role of various compounding ingredientsLecture 5.3 :Surface treatment of reinforcing elementsLecture 5.4:Rheology of filled elastomersLecture 5.5:Importance of die swell and surface finish (correlating with normal force differences)Lecture 5.6:Constitutive equations and their significanceWeek 6: Rubber and plastic mixing, their problems and remediesLecture 6.1 :Introduction to plastic and rubber mixing and blendingLecture 6.2 :Various mixing equipments and their importanceLecture 6.3 :Introduction to two roll and mixing on two roll 1Lecture 6.4:Introduction to two roll and mixing on two roll 2Lecture 6.5:Introduction to Internal mixture, kneaders and mixing using internal mixture and kneadersLecture 6.6:Practical demonstration of Rubber mixing on a two roll and using an internal mixerWeek 7: Processing techniques: calendaring, molding, extrusion, injection, vulcanization, and problem solvingLecture 7.1 :Molding TechniquesLecture 7.2 :CalenderingLecture 7.3 :Extrusion and Injection moldingLecture 7.4:VulcanizationLecture 7.5:Plastic and fibre related processingLecture 7.6:Problems related to various processing techniquesWeek 8: Applied and advanced rheology : an overviewLecture 8.1 :Wire coating :an examples on significance of applied rheologyLecture 8.2 :Introduction to FEA based computational fluid mechanics on extrusion 1Lecture 8.3 :Introduction to FEA based computational fluid mechanics on extrusion 2Lecture 8.4:Introduction to FEA based computational fluid mechanics on extrusion 3Lecture 8.5:Practical Demonstration on FEALecture 8.6:Concluding remarks and comments on applied rheology for advance learners
Taught by
Prof. Santanu Chattopadhyay
