Projects per year
Abstract
Sustainability has become one of the key factors driving in the decision of materials for different applications. In package cushioning, new environmentally friendly alternatives are needed to reduce the use of non-renewable polymeric foams. Fibre-based foam-formed cushioning materials are promising alternatives to replace some of the petroleum-based materials.
In this work, the aim was to improve strength and resilience of foam-formed structures with various chemicals. Bleached chemi-thermomechanical pulp (BCTMP) fibres were used together with non-ionic foaming agent (AG6210) as a base structure for foam-formed materials with a target density of 60 kg/m3. The dynamic shock cushioning results from mechanical testing, Platen drop test, showed that the samples including chitosan and synthetic latex resulted in the highest maximum G values together with the highest resilience. Micro-computed X-ray tomography and Scanning Electron Microscopy (SEM) images showed variation in the internal structures of different samples; more homogeneous structures with smaller and more even pore size distribution performed better in general. However, more research is needed to understand the causality better.
In this work, the aim was to improve strength and resilience of foam-formed structures with various chemicals. Bleached chemi-thermomechanical pulp (BCTMP) fibres were used together with non-ionic foaming agent (AG6210) as a base structure for foam-formed materials with a target density of 60 kg/m3. The dynamic shock cushioning results from mechanical testing, Platen drop test, showed that the samples including chitosan and synthetic latex resulted in the highest maximum G values together with the highest resilience. Micro-computed X-ray tomography and Scanning Electron Microscopy (SEM) images showed variation in the internal structures of different samples; more homogeneous structures with smaller and more even pore size distribution performed better in general. However, more research is needed to understand the causality better.
| Original language | English |
|---|---|
| Qualification | Master Degree |
| Awarding Institution |
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| Supervisors/Advisors |
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| Award date | 11 Jul 2022 |
| Publisher | |
| Publication status | Published - 23 Aug 2022 |
| MoE publication type | G2 Master's thesis, polytechnic Master's thesis |
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Dive into the research topics of 'Improving strength and resilience of foam-formed fibre cushioning'. Together they form a unique fingerprint.Projects
- 1 Finished
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PAfP (ERDF): Piloting Alternatives for Plastics
Kiiskinen, H. (Manager), Pääkkönen, E. (Participant), Asikainen, J. (Participant), Kamppuri, T. (Participant), Salminen, K. (Owner), Hjelt, T. (Participant), Kouko, J. (Participant), Retulainen, E. A. (Participant), Lappalainen, T. (Participant), Jetsu, P. (Participant), Jäsberg, A. (Participant), Korpela, A. (Participant), Jaiswal, A. (Participant), Ketoja, J. (Participant), Ketola, A. (Participant), Kumar, V. (Participant), Viitala, J. (Participant), Seppänen, T. (Participant), Koponen, A. (Participant), Pöhler, T. (Participant), Keränen, J. T. (Participant), Paunonen, S. (Participant), Lehmonen, J. (Participant), Tanaka, A. (Participant), Grönroos, A. (Participant), Prakash, B. (Participant), Tammelin, T. (Participant), Harlin, A. (Participant), Mäkelä, M. (Participant) & Kiiskinen, T. (Participant)
European Union - European Regional Development Fund (ERDF), European Union - Leverage from the EU
1/04/20 → 31/08/23
Project: EU project