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Course module: 201900038
201900038
Elastomer Design and Engineering
Course info
Course module201900038
Credits (ECTS)6
Course typeCourse
Language of instructionEnglish
Contact personprof.dr. A. Blume
E-maila.blume@utwente.nl
Lecturer(s)
Contactperson for the course
prof.dr. A. Blume
Lecturer
dr. W.K. Dierkes
Lecturer
dr. F. Grunert
Academic year2020
Starting block
2A
RemarksVoor PDEng en PhD studenten
Application procedureYou apply via OSIRIS Student
Registration using OSIRISYes
Aims
General course aim: Define performance criteria articles and translate these into the design of articles with the specific visco-elastic or rubber-elastic material behavior of elastomers.
 
Aims:
  1. Design of a material for a certain functionality and application based on elastomers including:A global overview of the rubber industry, its history and present status, including main applications: tires, hoses, profiles, seals, vibration dampers, etc. 5%
  2. Theoretical description of cooperative contribution of individual polymer molecules, crosslinked into a rubber network, on macroscopic material properties: polymer models for rubber-elasticity, neo-Hookean and Mooney-Rivlin theories. 10%
  3. The main rubber polymer types being used with respect to their different performance vis-à-vis the main application requirements. 10%
  4. The importance and effect of reinforcement, filler dispersion, including silica / silane coupling: the nanoscopic phenomena, as they translate into macroscopic properties.20%
  5. The main ways to crosslink (vulcanize) rubbers.10%
  6. A basic understanding of Mixing Theory, as applied in second instance to rubber mixing: two-roll mills and internal batch mixers.10%
  7. A basic understanding of subsequent processing techniques to include: extrusion, calandering, moulding and vulcanisation.5%
  8. Main techniques for (macroscopic) performance testing of rubber articles. 10%
 
 
Content
Elastomer represents a sub-group of the wider field of polymers. It covers about 15% of the total polymer turnover. Polymer-technology originated from rubber-technology, but rubbers have kept their own identity because of their unique combination of resilience and form stability after extremely large deformations, commonly designated as "rubber-elasticity". Elastomeric articles are designed to perform a certain function, wherein the rubber-elastic properties are the key factor: e.g. a car-tire translates all car-drivers interventions into the car-road contact: accelerating, breaking, cornering, etc. In this functional performance, the design of the article, the composition of the elastomeric material - commonly prepared for this purpose and called "compounding" - and the manufacturing technique all come together and jointly determine the end-result. In this course, the structural characteristics and properties of elastomers and reinforcing fillers are covered, the effect of filler dispersion, as well as their translation into product performance for a certain design. Besides, the basic principles of compounding, processing and vulcanization are covered, all illustrated with representative examples of rubber applications. The course includes a project for the design of a material for a given application, including the definition of the requirements and border conditions, and designing the materials in terms of compounding, vulcanization as well as characterization of specific properties. 
 
Part of the course is an additional assignment for upgrading the course to a Post-Master level. The PDEng trainee must discuss the content of this additional assignment together with the contact person of the course. Afterwards, the trainee needs a covering letter (see PDEng study guide) stating that he/she has rounded the course at post-master level. This form must be signed by both the contact person of the course and the PDEng programme director, and a scan must be uploaded in Hora Finita
Required materials
-
Recommended materials
Course material
B. Rodgers (ed.): Rubber Compounding; Marcel Dekker Inc., New York, Basel (2004)
Course material
Lecture notes: "Elastomeric Technology" 115650, nr. 799
Instructional modes
Lecture

Project supervised
Presence dutyYes

Tests
Oral Exam and Written Report

Remark
Remark: 3 assignment

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