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Rheology and microfluidic flows of a cationic surfactant and hydrotropic salt mixture.

Record Type:	Language materials, manuscript : Monograph/item
Title/Author:	Rheology and microfluidic flows of a cationic surfactant and hydrotropic salt mixture./
Author:	Zhao, Ya.
Description:	1 online resource (152 pages)
Notes:	Source: Dissertation Abstracts International, Volume: 78-04(E), Section: B.
Contained By:	Dissertation Abstracts International78-04B(E).
Subject:	Mechanical engineering. -
Online resource:	click for full text (PQDT)
ISBN:	9781369171242

Rheology and microfluidic flows of a cationic surfactant and hydrotropic salt mixture.
Zhao, Ya.

Rheology and microfluidic flows of a cationic surfactant and hydrotropic salt mixture. - 1 online resource (152 pages)

Source: Dissertation Abstracts International, Volume: 78-04(E), Section: B.

Thesis (Ph.D.)

Includes bibliographical references

The widespread use of wormlike micellar solutions is commonly found in household items such as cosmetic products, industrial fluids used in enhanced oil recovery and as drag reducing agents, and in biological applications such as drug delivery and biosensors. Despite their extensive use, there are still many details about the microscopic micellar structure and the mechanisms by which wormlike micelles form under flow that are not clearly understood. We focused on studying an aqueous micellar solutions of cationic surfactant cetyltrimethylammonium bromide (CTAB) and organic hydrotropic salt 3-hydroxy naphthalene-2-carboxylate (SHNC), including linear and nonlinear rheological characterizations, flow instabilities of CTAB/SHNC solution around microfluidic cylinders. The strong hydrophobicity and naphthalene structure present in the SHNC induces significant growth of CTAB wormlike micelles and promotes stable micellar network formation. We correlated its rich rheological behavior with structural transitions of the micelle network under different deformation histories and temperature variations. Since microfluidic devices provide a versatile platform to study wormlike micellar solutions under various flow conditions and confined geometry, we are able to showcase that the influence of spatial confinement and moderate hydrodynamic forces present in the microfluidic device can give rise to a host of possibilities of microstructural rearrangements and interesting flow phenomena.

Electronic reproduction.
Ann Arbor, Mich. :
ProQuest,
2018

Mode of access: World Wide Web

ISBN: 9781369171242Subjects--Topical Terms:

557493
Mechanical engineering.
Index Terms--Genre/Form:

554714
Electronic books.

Rheology and microfluidic flows of a cationic surfactant and hydrotropic salt mixture.
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035 $a (MiAaPQ)AAI10162333
035 $a (MiAaPQ)washington:16360
035 $a AAI10162333
040 $a MiAaPQ $b eng $c MiAaPQ
099 $a TUL $f hyy $c available through World Wide Web
100 1 $a Zhao, Ya. $3 1180302
245 1 0 $a Rheology and microfluidic flows of a cationic surfactant and hydrotropic salt mixture.
264 0 $c 2016
300 $a 1 online resource (152 pages)
336 $a text $b txt $2 rdacontent
337 $a computer $b c $2 rdamedia
338 $a online resource $b cr $2 rdacarrier
500 $a Source: Dissertation Abstracts International, Volume: 78-04(E), Section: B.
500 $a Adviser: Amy Q. Shen.
502 $a Thesis (Ph.D.) $c University of Washington $d 2016.
504 $a Includes bibliographical references
520 $a The widespread use of wormlike micellar solutions is commonly found in household items such as cosmetic products, industrial fluids used in enhanced oil recovery and as drag reducing agents, and in biological applications such as drug delivery and biosensors. Despite their extensive use, there are still many details about the microscopic micellar structure and the mechanisms by which wormlike micelles form under flow that are not clearly understood. We focused on studying an aqueous micellar solutions of cationic surfactant cetyltrimethylammonium bromide (CTAB) and organic hydrotropic salt 3-hydroxy naphthalene-2-carboxylate (SHNC), including linear and nonlinear rheological characterizations, flow instabilities of CTAB/SHNC solution around microfluidic cylinders. The strong hydrophobicity and naphthalene structure present in the SHNC induces significant growth of CTAB wormlike micelles and promotes stable micellar network formation. We correlated its rich rheological behavior with structural transitions of the micelle network under different deformation histories and temperature variations. Since microfluidic devices provide a versatile platform to study wormlike micellar solutions under various flow conditions and confined geometry, we are able to showcase that the influence of spatial confinement and moderate hydrodynamic forces present in the microfluidic device can give rise to a host of possibilities of microstructural rearrangements and interesting flow phenomena.
533 $a Electronic reproduction. $b Ann Arbor, Mich. : $c ProQuest, $d 2018
538 $a Mode of access: World Wide Web
650 4 $a Mechanical engineering. $3 557493
655 7 $a Electronic books. $2 local $3 554714
690 $a 0548
710 2 $a ProQuest Information and Learning Co. $3 1178819
710 2 $a University of Washington. $b Mechanical Engineering. $3 1148544
773 0 $t Dissertation Abstracts International $g 78-04B(E).
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=10162333 $z click for full text (PQDT)