Viscoelastic properties of pulp suspensions of bleached sugarcane bagasse: Effects of consistency and temperature

Jorge H. Sánchez; Mery E. Fajardo; Germán C. Quintana

doi:10.15376/biores.11.4.8355-8363

Viscoelastic properties of pulp suspensions of bleached sugarcane bagasse: Effects of consistency and temperature

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Abstract

The viscoelasticity of pulp suspensions of bleached sugarcane bagasse was studied in a stress/shear rate-controlled rheometer using concentric cylinders geometry. Results for the elastic (G') and viscous (G") modulus, as well as complex viscosity (n*), are presented as a function of the suspension consistency (1.0 wt% ≤ C_m ≤ 6.0 wt%) and temperature (20, 40, and 60 °C). The results show an effect of the concentration and temperature on the viscoelastic moduli and cross-over point. A power law model was fitted to the experimental results for elastic modulus, G' = aC^b_m. It was found that the complex viscosity exhibited shear-thinning behavior for all the suspensions. Only the pulp concentration had an influence on this material function.

Original language	English
Pages (from-to)	8355-8363
Number of pages	9
Journal	BioResources
Volume	11
Issue number	4
DOIs	https://doi.org/10.15376/biores.11.4.8355-8363
State	Published - Nov 2016

Keywords

Complex viscosity
Elastic modulus
Pulp suspension
Sugarcane bagasse
Viscous modulus

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10.15376/biores.11.4.8355-8363

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title = "Viscoelastic properties of pulp suspensions of bleached sugarcane bagasse: Effects of consistency and temperature",

abstract = "The viscoelasticity of pulp suspensions of bleached sugarcane bagasse was studied in a stress/shear rate-controlled rheometer using concentric cylinders geometry. Results for the elastic (G') and viscous (G{"}) modulus, as well as complex viscosity (n*), are presented as a function of the suspension consistency (1.0 wt\% ≤ Cm ≤ 6.0 wt\%) and temperature (20, 40, and 60 °C). The results show an effect of the concentration and temperature on the viscoelastic moduli and cross-over point. A power law model was fitted to the experimental results for elastic modulus, G' = aCbm. It was found that the complex viscosity exhibited shear-thinning behavior for all the suspensions. Only the pulp concentration had an influence on this material function.",

keywords = "Complex viscosity, Elastic modulus, Pulp suspension, Sugarcane bagasse, Viscous modulus",

author = "S{\'a}nchez, \{Jorge H.\} and Fajardo, \{Mery E.\} and Quintana, \{Germ{\'a}n C.\}",

year = "2016",

month = nov,

doi = "10.15376/biores.11.4.8355-8363",

language = "Ingl{\'e}s",

volume = "11",

pages = "8355--8363",

journal = "BioResources",

issn = "1930-2126",

publisher = "North Carolina State University",

number = "4",

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TY - JOUR

T1 - Viscoelastic properties of pulp suspensions of bleached sugarcane bagasse

T2 - Effects of consistency and temperature

AU - Sánchez, Jorge H.

AU - Fajardo, Mery E.

AU - Quintana, Germán C.

PY - 2016/11

Y1 - 2016/11

N2 - The viscoelasticity of pulp suspensions of bleached sugarcane bagasse was studied in a stress/shear rate-controlled rheometer using concentric cylinders geometry. Results for the elastic (G') and viscous (G") modulus, as well as complex viscosity (n*), are presented as a function of the suspension consistency (1.0 wt% ≤ Cm ≤ 6.0 wt%) and temperature (20, 40, and 60 °C). The results show an effect of the concentration and temperature on the viscoelastic moduli and cross-over point. A power law model was fitted to the experimental results for elastic modulus, G' = aCbm. It was found that the complex viscosity exhibited shear-thinning behavior for all the suspensions. Only the pulp concentration had an influence on this material function.

AB - The viscoelasticity of pulp suspensions of bleached sugarcane bagasse was studied in a stress/shear rate-controlled rheometer using concentric cylinders geometry. Results for the elastic (G') and viscous (G") modulus, as well as complex viscosity (n*), are presented as a function of the suspension consistency (1.0 wt% ≤ Cm ≤ 6.0 wt%) and temperature (20, 40, and 60 °C). The results show an effect of the concentration and temperature on the viscoelastic moduli and cross-over point. A power law model was fitted to the experimental results for elastic modulus, G' = aCbm. It was found that the complex viscosity exhibited shear-thinning behavior for all the suspensions. Only the pulp concentration had an influence on this material function.

KW - Complex viscosity

KW - Elastic modulus

KW - Pulp suspension

KW - Sugarcane bagasse

KW - Viscous modulus

UR - https://www.scopus.com/pages/publications/85018914396

U2 - 10.15376/biores.11.4.8355-8363

DO - 10.15376/biores.11.4.8355-8363

M3 - Artículo en revista científica indexada

AN - SCOPUS:85018914396

SN - 1930-2126

VL - 11

SP - 8355

EP - 8363

JO - BioResources

JF - BioResources

IS - 4

ER -

Viscoelastic properties of pulp suspensions of bleached sugarcane bagasse: Effects of consistency and temperature

Abstract

Keywords

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