European University Student Research

"Lore’s research shows how applied student work can bridge the gap between science and industry. Great to see ISTA recognizing that,” said Dr. Ing. Bram Bamps, Hasselt University.

As part of the award, Lore will present her research findings at the upcoming ISTA Forum Europe, taking place 07–08 October in Barcelona, Spain, and submit a final report and data to ISTA.

We congratulate Lore and her mentors on this achievement and look forward to seeing the outcomes of their important work!

Project abstract: Plastic packaging materials are essential for goods protection and during transport, but their environmental impact has prompted regulatory action. The EU’s PPWR 2025/40 mandates 35% recycled content by 2030, rising to 65% by 2040. This research investigates how reprocessed content and multiple reprocessing cycles affect LLDPE stretch film performance for palletised loads.

As part of the MultiRec project, this research evaluates films containing 0%, 35%, and 60% reprocessed LLDPE subjected to 5, 10, or 15 reprocessing cycles. The study examines mechanical properties, transport performance, UV-resistance, and seeks to interpret the findings based on chemical analysis.

Results show that chain scission is the dominant degradation mechanism, reducing polymer chain length and weakening polymer networks. While films maintained load stability in transport tests, mechanical performance decreased with increased reprocessing. Machine direction tear resistance showed the most pronounced degradation of mechanical properties, dropping from 5.3 +/- 0.35 N (virgin) to 0.70 +/- 0.14 N (15x60%). Another clear trend was the increase in permanent deformation and reduction in stress retention, indicating a loss of elasticity. The 15x60% film failed during wrapping at 100% pre-stretch due to gauge band defects. Surprisingly, UV-resistance improved with more reprocessing levels, likely due to increased Hindered Amine Light Stabiliser (HALS) concentrations.

Findings suggest the EU’s 2030 target appears achievable, the 2040 target needs advancements to overcome performance limitations.

Lore Gielkens Biography: "As an engineer, I strive for optimization and the development of efficient, well-thought-out solutions. I am analytical, goal-oriented, and always looking for ways to improve processes or products. This mindset has been strengthened by my experience as a high-level volleyball player, where I learned to work in a team, perform under pressure, and continuously aim for improvement. Sustainability is valuable to me as well. With my technical background, competitive mindset, and intrinsic motivation to make a positive impact, I aim to contribute to innovative and sustainable solutions that create value for both people and the environment." 

"The ISTA European Board is proud to support the next generation of packaging leaders in Europe", said ISTA European Board Chair Alberto Tellechea. "We look forward to growing awareness of our mission among students, and we are proud to support young talent and new research in our field."  

How to Submit Proposals

Researchers may submit their proposals using the above proposal portal. The submission deadline is September 1, 2025 and the winners of the grants will be announced in the Fall.

Eligibility: Any European-based university program with a concentration in packaging, with the capabilities of executing distribution packaging research may submit a proposal.  Specifically,

1. It is the applicant’s responsibility to confirm their school’s ability to perform the distribution packaging research as proposed. In general, the applicant must have the capabilities to perform the proposed research. This includes having the appropriate curriculum, instructors, oversight, facilities and faculty and student capabilities to perform the distribution packaging research as proposed.
2. By submitting a proposal, the school agrees that their research team is willing and able to present results at the ISTA European Packaging Symposium
3. Schools do not have to be an ISTA member to be eligible for grants.

ISTA European Board has developed a document describing the research grant process, which can be accessed by clicking here.

Examples of Prior Research