Melt processability of modified cellulose fibres

PI: Per Larsson, KTH 
Co-PI: Giada Lo Re, Chalmers
PostDoc: Emile Engel
Duration: 2 years, starting October 2019
Reference Group: Tetra Pak

Intro                                                                                                                                                                                      
The project idea is based on earlier results showing that it is possible to dramatically alter the property space of cellulose-rich fibres by partly changing the supramolecular structure of cellulose (1).  This type of modification has also been demonstrated for facilitate fibres that can be used in extrusion and injection moulding processes (2).   However, the relationship between how, and how much. the fibres are modified, processing conditions, such as temperature and moisture, and final material properties are not established. 

Aim                                                                                                                                                                                          
Establishing relationships between dialcohol cellulose modification of fibres and the change of fibre properties, such as morphology, water holding capacity, rheological properties and processability

Describe how this project addresses the hypotheses in FibRe                                                                                 
The project applying for association to FibRe address questions related to “How to process thermoplastic fibres”. That is, degree of modification, temperatures, presence of moisture etc. Since this project utilise a modified fibre (dialcohol cellulose), it links to FibRe’s hypotheses. Further, the project works with a modified fibre that possess some of the properties set up as goals in FibRe. It hence contributes to identify how and how much fibres need to be modified to gain thermoplasticity and processability in conventional equipment (or identify if equipment development is needed).

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  Larsson and Wågberg, Green Chemistry, 2016, 18, 3324–3333
  PCT/SE 2018/050039


Page manager Published: Wed 28 Sep 2022.