MagNano3D - Magnetic nanoparticles for 3D printed multifunctional materials
| Reference number | |
| Coordinator | RISE Research Institutes of Sweden AB - RISE Acreo, Göteborg |
| Funding from Vinnova | SEK 493 166 |
| Project duration | December 2019 - December 2020 |
| Status | Completed |
Important results from the project
The aim of the project was to develop a method for integrating magnetic nanoparticles in matrices of polymers and cellulose, ie. to create magnetic composite materials, and to use these composite materials for non-contact measurement of stress in strain in the materials. We also aimed to study whether the composite materials could absorb the energy from an applied alternating magnetic field resulting in an internal heating of the materials. This would be used for drying and self-healing of the materials (repairing the cracks).
Expected long term effects
A method was developed to integrate magnetic nanoparticles of magnetite (Fe3O4) into polymer- and cellulose-based materials. The composite materials correspond well with the magnetic properties of the original nanoparticles, which indicates a homogeneous mixture. Magnetic composite materials can be used for magnetic non-contact measurement of the mechanical strain and stress of the materials. It can also be used to heat the composite by applying an alternating magnetic field.
Approach and implementation
In the first stage the magnetic particles were integrated in cellulose and two different polymer binders. The magnetic properties of the samples were measured and the results showed the correlation between the magnetic properties and the magnetic particle concentration. The samples where then exposed to an alternating magnetic field resulting in the increase in the temperature which was recorded using an infrared camera. In the last stage the variation of the magnetic properties through strain/stress were measured.