MATERIALS SCIENCE AND TECHNOLOGY

Module MACROMOLECULAR CHEMISTRY

Knowledge and understanding: Basic knowledge on the relationships between the structure of polymeric materials and their mechanical properties, on the transformation technologies of polymeric materials and on the problems related to their manufacturing.

Applied knowledge and understanding skills: Ability to apply what has been learned during the lectures in the exercises carried out during the course.

Autonomy of judgment: Students learn to objectively evaluate what they have learned during lessons and exercises.

Communication skills: Students acquire communication skills that are formed both during the lessons, thanks to a continuous verbal conversation with the teacher, and during the oral exam.

Learning skills: Learning skills are assessed through the oral exam and exercises which are an important part of the course.

Basic knowledge of the nature of chemical bonds, the structure of crystalline and amorphous solids, and the thermodynamics of state transitions acquired through the Chemistry course.

Classification and structure of polymeric materials. Mechanical behavior at small deformations: viscoelastic behavior, creep tests, relaxation tests and dynamic-mechanical behavior. Boltzman's principle, viscoelastic models. Module diagrams. Mechanical behavior at large deformations. Rheology: flow curves and constitutive relationships. Rheometry. Rheological behavior of polymers in the melt state. Transformation technologies of polymeric materials. Polymer composites and their production technologies

Course notes

Introduction to physical polymer science (L.H.Sperling – Wiley)

Mechanical properties of solid polymers (I.M. Ward-J.Sweeney – Wiley)

Fundamental of Polymers Science for Engineers – (S.Fakirov - Wiley-VCH)

During the year, seven (ordinary) exam sessions are scheduled besides to four sessions reserved for out of-course students.

During the periods allowed by the academic calendar it is also possible, by contacting the teacher by e-mail or by telephone, to arrange further exam interviews (on a weekly basis)

How to register for an exam session: Booking on the university portal and contacting the teacher to agree day and time of the exam

The exam consists in the oral presentation of topics addressed during the course

The evaluation of the exam is based on the following criteria: level of knowledge of the required topics, expressive ability and language properties, ability to apply knowledge to simple case studies, ability to connect the different themes of the course program.

In order to ensure equal opportunities and compliance with current laws, interested students can request a personal interview to plan any compensatory and/or dispensatory measures based on educational objectives and specific needs. Students may also contact the CInAP (Center for Active and Participatory Integration - Services for Disabilities and/or Specific Learning Disabilities) referring teacher in their department.

Viscoelastic properties of polymers. Constitutive equations. Compliance.

Dynamic mechanical measurements and study of the structure of polymers and transitions.

Viscoelastic models.

Mechanical principles of brittle fracture of polymeric materials. Mechanical properties of fibers.

Newtonian and non-Newtonian behavior.

Dependence of viscosity on deformation rate.

Dependence of viscosity on molecular mass.

Melt elasticity phenomena.

Constitutive equations of melted viscoelastic polymers.

Rheometers.

Printing. Extrusion. Injection molding.

Fibers and matrices. Fiberglass. Carbon fibers. Aramid fibers. Fiber format for composites.

Particle composites. Mechanical properties. Micromechanics of the lamina.

Manual forming technologies. Forming in an autoclave. Resin Transfer Molding. Filament winding.

Pultrusion molding.