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PEOPLE@HES-SO – Directory and Skills inventory
PEOPLE@HES-SO – Directory and Skills inventory

PEOPLE@HES-SO
Directory and Skills inventory

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Siegenthaler Hans-Ulrich

Siegenthaler Hans-Ulrich

Assoziierter Professor FH

Main skills

Compounding (Plastics,Food,Pharma)

Process Optimization

Plastics Processing (i.e.Extrusion)

Circular Economy & Sustainability

Cradle-2-Cradle Approaches

Design Thinking

Business Model Innovation

  • Contact

  • Teaching

  • Conferences

Main contract

Assoziierter Professor FH

Desktop: HEIA_D10.03 BFA_1A_123

Haute école d'ingénierie et d'architecture de Fribourg
Boulevard de Pérolles 80, 1700 Fribourg, CH
HEIA-FR
Institute
iRAP - Institut de recherches appliquées en plasturgie
BSc HES-SO en Génie mécanique - Haute école d'ingénierie et d'architecture de Fribourg

2025

HOW DO YOU MAKE YOUR EXISTING COMPOUNDING PLANTS FUTURE-READY?
Conference

Siegenthaler Hans-Ulrich

ANTEC® 2025 - SPE's Annual Technical Conference, 03.03.2025 - 06.03.2025, Philadelphia, USA

Link to the conference

Summary:

Compared to most consumer goods, the lifetime of capital goods and plastics machinery/ compounding plants in particular is factors or even powers longer. It is quite likely that the plants are in operation for decades. Therefore, adaptability to changing or new requirements is of great importance. This paper presents multiple approaches, analytic processes and instruments, and their use based on concrete examples and scenarios.

2021

Which Extruder System for which Compounding Job?
Conference

Siegenthaler Hans-Ulrich

Compounding World Expo 2021, 28.09.2021 - 29.09.2021, Essen, Germany

Link to the conference

Summary:

Mixing, Extrusion, Compounding

  • Typical Process Steps
  • Mixing Principles
  • Desagglomeration, Disaggregation
  • Dispersive and Distributive Mixing

Requirements and Criteria for individual Processes

  • Batch vs.Continuous
  • Production Targets, Economical Aspects and Feasibility
  • Process Technology
  • Competences of the Suppliers
  • Soft factors and Which relationships already exist?

Technical Solutions illustrated on actual Examples in the Field

  • Requirements
  • Evaluations
  • Solutions

Summary and Outlook

2019

WHICH EXTRUDER SYSTEM FOR WHICH COMPOUNDING JOB?
Conference
A RELIABLE AND FIELD-TESTED METHODOLOGY

Siegenthaler Hans-Ulrich

ANTEC 2019 (SPE), 18.03.2019 - 20.03.2019, Detroit, USA

Link to the conference

Summary:

Abstract

There is no all-round compounder. No individual extruder can handle equally well all the challenges posed in practice. Key for specific compounding tasks are often the individual steps, such as feeding of poorly flowing or very high-volume additives, efficient melt degassing, or particularly gentle plasticization of sensitive plastic compounds. So which extruder is best for the task in hand? Alternatively, which extruder can flexibly handle the widest range of compounding applications cost-effectively? Moreover, when is a customized solution the best? A brief introduction in evaluation methodologies are given and illustrated with practical examples.

Achievements

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