Objective of this project is to study whether extensional rheology is applicable for solutions of cellulose in ionic liquids. Rheological properties of cellulose-IL solutions have been studied widely with rotational rheometers. The lack of publications in the field of extensional rheology and interest towards supplemental information for dry-wet spinning process motivated for further experiments.Two polymeric raw materials are used; cotton linters and sulphite pulp. Pulps are characterized (molar mass distribution, intrinsic viscosity) and dissolved in 1-ethyl-3-methylimidazolium acetate at different concentrations. A capillary break-up extensional rheometer (CaBER) is used for the rheological characterization of the extensional behaviour of the solutions. The results are compared with results from a conventional rotational rheometer.
|Publication status||Published - 2010|
|MoE publication type||Not Eligible|
|Event||239th ACS National Meeting - San Francisco, United States|
Duration: 21 Mar 2010 → 25 Mar 2010
Conference number: 239
|Conference||239th ACS National Meeting|
|Period||21/03/10 → 25/03/10|
Lehtonen, H., Plog, J. P., Ingildeev, D., Hummel, M., & Sixta, H. (2010). Extensional rheology of cellulose-ionic liquid (1-ethyl-3-methylimidazolium acetate) solution. Abstract from 239th ACS National Meeting, San Francisco, United States.