Credit Structure:(3-0)3

Catalog Description:
Development of tools of continuum mechanics necessary for the quantitative description of viscoelastic media. Use of principles of chemical kinetics, fluid and continuum mechanics and heat and mass transfer to describe the production and processing of polymeric materials.

Course Objectives:
This course is intended to extend and apply students' knowledge of classical heat, mass and momentum transfer in the core courses to the unit operations of polymer processing industry.

Prerequisites:
None

Textbook(s):
S.Middleman, "Fundamentals of Polymer Processing, McGraw Hill, 1977

R.S. Brodkey and H.C. Hershey, "Transport Phenomena" Mc Graw Hill, 1988
Z.Tadmor and C.G.Gogos, Principles of Polymer Processing, Wiley-Interscience, 1979

Reference:
None

Syllabus:
I. Introduction (1 week)
Survey of polymer processing methods and machinery analysis of polymer processing in terms of elementary steps and shaping methods
II. Continuum mechanics. Concept of a continuum. Stress in a continuum. Equations of motion. Kinematics. Boundary conditions. Constitutive equations. Transport and thermodynamic properties of polymers (2 weeks)
III. Dimensional analysis in design and interpretation of experimentals
The principle of dynamic similarity. Some applications (1 week)
IV. Heat and mass transfer
Generalized transport equations. Constitutive equations for diffusion and generation. Heat generation in non-adiabatic flows. Freezing and melting in polymers (1 week)
V. Extrusion
Newtonian isothermal analysis. Newtonian adiabatic analysis. Optimal design. Non-Newtonian isothermal analysis. Non-Newtonian adiabatic analysis. Extrusion with imposed heat transfer. Plasticating extrusion (3 weeks)
VI. Calendering
Power-law model in calendering. Normal stresses and viscoelasticity in calendering (2 weeks)
VII. Fiber spinning
Isothermal melt spinning-newtonian analysis. Isothermal melt spinning-power law analysis (1 week)
VIII. Mixing
Laminar shear mixing. Mixing in stirred tanks. The extruder as a mixer (1 week) IX. Elastic phenomena in polymer processing Die swell and sag. Melt fracture, stability. Effect of elastic phenomena in the design of etrusion and blow molding processes. Die design (1 week)

Homeworks, Quizzes, Projects:
Monthly homeworks are given

Computer Usage:
None

Laboratory work:
None

Category Content:
Mathematics and Basic Sciences: None
Engineering Design: 1 credit
Engineering Sciences: 2 credits
Humanities & Social Sciences: None
Departmental: None

Instructors:
Ülkü Yilmazer