Influence of salinity on the slip velocity of xanthan gum solutions

Maximiliano Valdez-González; Miguel Angel Valdez; Francisco M. Goycoolea

Influence of salinity on the slip velocity of xanthan gum solutions

Maximiliano Valdez-González^*, Miguel Angel Valdez, Francisco M. Goycoolea

^*Corresponding author for this work

Departamento de Física

Research output: Contribution to journal › Article › peer-review

Abstract

The influence of three different salts (KCl, 0.0002 M; CaCl₂, 0.0001 M; NaCl, 0.0002 M) on the slip velocity of 0.390 xanthan solutions, around the corresponding order-disorder conformational transition temperature, was investigated with a glass capillary rheometer. An enhancement of the slip velocity was observed very near the transition for the three salts studied. This result is similar to the one reported by us, using two different xanthan samples in the absence of salt. The behavior of the power-law parameters of the slip velocity was similar to the one obtained with xanthan without salt around the transition temperature. Slip was determined with the Mooney method, showing good results and only small discrepancies at higher temperatures (T > 34°C).

Original language	English
Pages (from-to)	277-281
Number of pages	5
Journal	Revista Mexicana de Fisica
Volume	44
Issue number	3
State	Published - Jun 1998

Keywords

Capillary rheometer
Slip velocity
Transition temperature
Xanthan solutions

Cite this

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title = "Influence of salinity on the slip velocity of xanthan gum solutions",

abstract = "The influence of three different salts (KCl, 0.0002 M; CaCl2, 0.0001 M; NaCl, 0.0002 M) on the slip velocity of 0.390 xanthan solutions, around the corresponding order-disorder conformational transition temperature, was investigated with a glass capillary rheometer. An enhancement of the slip velocity was observed very near the transition for the three salts studied. This result is similar to the one reported by us, using two different xanthan samples in the absence of salt. The behavior of the power-law parameters of the slip velocity was similar to the one obtained with xanthan without salt around the transition temperature. Slip was determined with the Mooney method, showing good results and only small discrepancies at higher temperatures (T > 34°C).",

keywords = "Capillary rheometer, Slip velocity, Transition temperature, Xanthan solutions",

author = "Maximiliano Valdez-Gonz{\'a}lez and Valdez, {Miguel Angel} and Goycoolea, {Francisco M.}",

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TY - JOUR

T1 - Influence of salinity on the slip velocity of xanthan gum solutions

AU - Valdez-González, Maximiliano

AU - Valdez, Miguel Angel

AU - Goycoolea, Francisco M.

PY - 1998/6

Y1 - 1998/6

N2 - The influence of three different salts (KCl, 0.0002 M; CaCl2, 0.0001 M; NaCl, 0.0002 M) on the slip velocity of 0.390 xanthan solutions, around the corresponding order-disorder conformational transition temperature, was investigated with a glass capillary rheometer. An enhancement of the slip velocity was observed very near the transition for the three salts studied. This result is similar to the one reported by us, using two different xanthan samples in the absence of salt. The behavior of the power-law parameters of the slip velocity was similar to the one obtained with xanthan without salt around the transition temperature. Slip was determined with the Mooney method, showing good results and only small discrepancies at higher temperatures (T > 34°C).

AB - The influence of three different salts (KCl, 0.0002 M; CaCl2, 0.0001 M; NaCl, 0.0002 M) on the slip velocity of 0.390 xanthan solutions, around the corresponding order-disorder conformational transition temperature, was investigated with a glass capillary rheometer. An enhancement of the slip velocity was observed very near the transition for the three salts studied. This result is similar to the one reported by us, using two different xanthan samples in the absence of salt. The behavior of the power-law parameters of the slip velocity was similar to the one obtained with xanthan without salt around the transition temperature. Slip was determined with the Mooney method, showing good results and only small discrepancies at higher temperatures (T > 34°C).

KW - Capillary rheometer

KW - Slip velocity

KW - Transition temperature

KW - Xanthan solutions

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M3 - Artículo

SN - 0035-001X

VL - 44

SP - 277

EP - 281

JO - Revista Mexicana de Fisica

JF - Revista Mexicana de Fisica

IS - 3

ER -

Influence of salinity on the slip velocity of xanthan gum solutions

Abstract

Keywords

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