Eindhoven University of Technology is an internationally top-ranking university in the Netherlands that combines scientific curiosity with a hands-on attitude. Our spirit of collaboration translates into an open culture and a top-five position in collaborating with advanced industries. Fundamental knowledge enables us to design solutions for the highly complex problems of today and tomorrow.

The Department of Mechanical Engineering department conducts world-class research aligned with the technological interests of the high-tech industry in the Netherlands, with a focus on the Brainport region. Our goal is to produce engineers who are both scientifically educated and application-driven by providing a balanced education and research program that combines fundamental and application aspects. We equip our graduates with practical and theoretical expertise, preparing them optimally for future challenges.

Introduction

Are you eager to work on the next step in polymer recycling which goes beyond shredding and mixing?
And are you driven to make an impact on the sustainability of plastic materials?
Then this PhD position is an excellent fit for you!

Job Description

About the Research

At TU/e, materials research is a cornerstone of our academic mission, with polymers and soft matter recognized as a major theme. Within the Department of Mechanical Engineering, the Processing and Performance (P&P) research group aims to revolutionize the design of polymer products and shaping processes. We are transitioning from traditional trial-and-error approaches to virtual prototyping powered by quantitative predictive models.

The P&P group bridges the gap between molecular design, processing techniques, and end-product properties. Our research spans the entire spectrum of polymer rheology, processing, and mechanical performance, targeting both the fluid (processing) and solid (properties) states. This integrated approach combines sophisticated experimental techniques, rheological modeling, and reliable predictive modeling to tackle real-world challenges.

About the Project

Despite significant efforts to recycle plastic waste efficiently, traditional recycling methods face critical limitations. These methods often involve costly, energy-intensive processes that fail to meet stringent purification requirements for sensitive applications like food packaging and medical products.

In this PhD project, you will develop a novel recycling approach leveraging the sensitivity of polyolefin crystallization and melting behaviors to typical processing conditions such as extrusion and injection molding. By exploiting these unique characteristics, you will aim to achieve precise separation and spatial fractionation of polymer mixtures based on polyolefin type and molecular weight. This innovative methodology has the potential to overcome the limitations of conventional recycling, offering sustainable solutions for high-purity applications.

Identify the processing conditions, i.e., flow fields and temperature profiles, that seem most effective in molecular phase separation at the nanoscale.
Develop an experimental toolkit to inform and validate these predictive models.
Compare the de-mixing efficiency for different material compositions and molecular weights.

The results of your project will facilitate the efficient removal of undesirable components in mixed waste-streams, thereby significantly enhancing the performance and quality of polyolefin recyclates. Importantly, this innovative technique needs to be designed for seamless integration into existing compounding lines, offering a practical and scalable solution to overcome current recycling inefficiencies while advancing sustainability in high-value applications.

Job Requirements

We are looking for a candidate with intrinsic motivation and enthusiasm, holding a MSc. degree in Mechanical Engineering (or equivalent) and having a strong background in polymer processing / polymer mechanics.
The following experience, skills and interested are preferred:

A master’s degree (or an equivalent university degree)Affinity with both experimental and numerical work.
Experienced in characterization of complex fluids / rheology (preferably polymers and/or other viscoelastic materials).
Driven to improve sustainability of polymer materials.
Excellent communication skills.
Ability to take ownership of the research project.
Interested in collaborating with academic and industrial partners.
Motivated to develop your teaching skills and coach students.
Fluent in spoken and written English (C1 level).

Conditions of Employment

A meaningful job in a dynamic and ambitious university, in an interdisciplinary setting and within an international network. You will work on a beautiful, green campus within walking distance of the central train station. In addition, we offer you:
Full-time employment for four years, with an intermediate assessment after nine months. You will spend a minimum of 10% of your four-year employment on teaching tasks, with a maximum of 15% per year of your employment.
Salary and benefits (such as a pension scheme, paid pregnancy and maternity leave, partially paid parental leave) in accordance with the Collective Labour Agreement for Dutch Universities, scale P (min. € 2,901 max. € 3,707).
A year-end bonus of 8.3% and annual vacation pay of 8%.
High-quality training programs and other support to grow into a self-aware, autonomous scientific researcher. At TU/e we challenge you to take charge of your own learning process.
An excellent technical infrastructure, on-campus children's day care and sports facilities.
An allowance for commuting, working from home and internet costs.
A Staff Immigration Team and a tax compensation scheme (the 30% facility) for international candidates.

Information

Do you recognize yourself in this profile and would you like to know more? Please contact the hiring manager prof.dr.ir. Stan Looijmans, Assistant Professor, [email protected] or +31 40 247 6324.

Visit our website for more information about the application process or the conditions of employment. You can also contact HR Services, email [email protected].

Are you inspired and would like to know more about working at TU/e? Please visit our career page.

Application

We invite you to submit a complete application by using the apply button.
The application should include a:

Curriculum vitae (including a list of conference and/or journal publications, if applicable).
Cover letter in which you describe your motivation and qualifications for the position and your motivation to conduct PhD research in general.
Contact details of (min.) 2 to (max.) 3 references.

We look forward to receiving your application and will screen it as soon as possible. Shortlisted candidates will be invited for an online/on-campus interview. The vacancy will remain open until the position is filled.

Type of employment: Temporary position
Contract type: Full time
Salary: Scale P
Number of positions: 1
Full-time equivalent: 1.0 FTE
City: Eindhoven
County: Noord-Brabant
Country: Netherlands
Reference number: 2025/189
Published: 2025-05-07
Last application date: 2025-06-22