Extensional rheology of cellulose-ionic liquid (1-ethyl-3-methylimidazolium acetate) solution

Heini Lehtonen; Jan P. Plog; Denis Ingildeev; Michael Hummel; Herbert Sixta

Extensional rheology of cellulose-ionic liquid (1-ethyl-3-methylimidazolium acetate) solution

Heini Lehtonen, Jan P. Plog, Denis Ingildeev, Michael Hummel, Herbert Sixta

VTT Technical Research Centre of Finland

Research output: Contribution to conference › Conference Abstract › Scientific

Abstract

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.

Original language	English
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

Conference	239th ACS National Meeting
Country	United States
City	San Francisco
Period	21/03/10 → 25/03/10

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@conference{96cf66c4dca74ec1b73dfaaa78dec30e,

title = "Extensional rheology of cellulose-ionic liquid (1-ethyl-3-methylimidazolium acetate) solution",

abstract = "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.",

author = "Heini Lehtonen and Plog, {Jan P.} and Denis Ingildeev and Michael Hummel and Herbert Sixta",

year = "2010",

language = "English",

note = "239th ACS National Meeting ; Conference date: 21-03-2010 Through 25-03-2010",

}

TY - CONF

T1 - Extensional rheology of cellulose-ionic liquid (1-ethyl-3-methylimidazolium acetate) solution

AU - Lehtonen, Heini

AU - Plog, Jan P.

AU - Ingildeev, Denis

AU - Hummel, Michael

AU - Sixta, Herbert

N1 - Conference code: 239

PY - 2010

Y1 - 2010

N2 - 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.

AB - 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.

M3 - Conference Abstract

T2 - 239th ACS National Meeting

Y2 - 21 March 2010 through 25 March 2010

ER -