Master Thesis: Electronic Textiles Using Wood Cellulose Nonwoven Materials

Date Posted: 09/12/2019

Job Description

Project goal
The project aims to perform electrical characterization of functionalized nonwoven cellulose and to further utilize the material for the development of electronic components.  

Background and purpose
Until now, the most dominant applications for wood-based cellulose have been paper and hygiene tissues. Recently, however, due to its good compatibility with polymers, carbon and other materials, various cellulose-based composites have been realized and studied for usage in different kinds of electronic components, sensors and devices.  

Solution blowing is an efficient way to fabricate cellulose nonwoven textiles. It is a fast method, capable of generating large area and quantities of fibers and textile-styled samples efficiently. Using this method, cellulose and filler materials with functionalities different than cellulose can be neatly and tightly integrated with each other, resulting in a material that is both stable and durable.

Electrically functionalized textile materials using this technique are quite new. The purpose of this study is to develop methods to characterize them electrically and mechanically, and further to test use them as conductors and capacitors.

About the project
The project will start with a literature study on smart textiles with emphasis on textiles produced with the solution blowing technique. A literature report should be written as an outcome for the literature study, and it will serve as background for the practical project work. The electrical characterization will be done on different nonwoven cellulose materials supplied from Rise/IVF, including conductive, capacitive, and insulating materials. A reliable method for contacting and measuring the conductivity of the nonwoven will be developed and different samples will be measured, the tests will also be conducted at different temperature and humidity environments. The mechanical properties of the textiles will also be investigated, using, e.g, tensile tests.

By introducing active energy storage materials like active carbon and lignin into nonwoven scaffold during the solution blowing process, capacitive materials can be achieved. For the capacitive samples, their charge storage capacities will be characterized by electrochemical methods at first hand. If time allows, some supercapacitor components will be prepared with the nonwoven materials, and the supercaps will be characterized by charge-discharge measurements.

It is also desirable to construct a simple demonstrator to show the performance of the electronic textiles and the possibility to use them for energy harvesting and storage, sensing and/or displaying applications.

For this diploma work, the student should have background knowledge in material science, physics, electrical measurement techniques, and electronic components.

Examiner: Senior lecturer Isak Engquist, Laboratoriet för organisk elektronik (LOE), Campus Norrköping, LiU, 011-36 34 01

Project start: January 2020

Scope: 30hp

Placement: Norrköping

Remuneration: 18. 800 SEK will be paid to the student upon project completion previo approval from the supervisor and the examiner.

For more information, please contact Xin Wang, Ph. D., Printed Electronics, Rise Acreo, Norrköping, Sweden, +46-761158856. Please send your CV and application as soon as possible. The deadline for the application is 15 Dec 2019. Interviews with the candidates will be conducted before a selection is decided.

Our Union representative is Ingemar Petermann, RISE ACREO, 010-228 41 22.

RISE Acreo offers innovative and value-adding ICT solutions for sustainable growth and competitiveness in industry and society. As one of Europe’s top research institutes, we provide cutting edge resources and technologies within Sensors and Actuators, Power Electronics, Digital Communication and Life Science. Acreo is a part of RISE ICT.

RISE is the Swedish Research Institute and innovation partner. In international collaboration with industry, academia and the public sector, we ensure the competitiveness of the business community and contribute to a sustainable society. Our 2,800 employees support and promote all manner of innovative processes. RISE is an independent, state-owned research institute that offers unique expertise and about 100 testbeds and demonstration facilities, instrumental in future-proofing technologies, products and services.

Master thesis, Electronic textiles, Electrical characterization, Functionalized nonwoven cellulose, RISE, Norrköping

Job Snapshot

  • Employee Type: Examensarbete
  • Location: Norrköping
  • Experience: Not Specified
  • Date Posted: 09/12/2019