Effect of preparation method on the rheological behavior of waterborne polyurethane disperswion

Samy A. Madbouly; Joshua U. Otaigbe; Ajaya K. Nanda; Douelas A. Wicks

Effect of preparation method on the rheological behavior of waterborne polyurethane disperswion

Samy A. Madbouly
, Joshua U. Otaigbe
, Ajaya K. Nanda
, Douelas A. Wicks

School of Engineering (Behrend)

Research output: Contribution to conference › Paper › peer-review

2 Scopus citations

Abstract

Two classes of environmentally-friendly Polyurethane dispersions have been prepared via prepolymer emulsification process and acetone process. Rheological behavior of these dispersions has been studied as functions of PU-concentration, degree of post-neutralization and temperature. At a critical volume fraction of PU (φ ∼0.43), a dramatic increase in the reduced zero shear viscosity was detected for the two dispersions. Co-occurrence of thermal-induced gelation and liquid-liquid phase separation was observed for the prepolymer process, while, only liquid-liquid phase separation was discovered both rheologically and morphologically for the acetone process.

Original language	English (US)
Pages	2366-2370
Number of pages	5
State	Published - 2006
Event	Society of Plastics Engineers Annual Technical Conference 2006, ANTEC 2006 - Charlotte, NC, United States Duration: May 7 2006 → May 11 2006

Other

Other	Society of Plastics Engineers Annual Technical Conference 2006, ANTEC 2006
Country/Territory	United States
City	Charlotte, NC
Period	5/7/06 → 5/11/06

All Science Journal Classification (ASJC) codes

General Chemical Engineering
Polymers and Plastics

Cite this

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title = "Effect of preparation method on the rheological behavior of waterborne polyurethane disperswion",

abstract = "Two classes of environmentally-friendly Polyurethane dispersions have been prepared via prepolymer emulsification process and acetone process. Rheological behavior of these dispersions has been studied as functions of PU-concentration, degree of post-neutralization and temperature. At a critical volume fraction of PU (φ ∼0.43), a dramatic increase in the reduced zero shear viscosity was detected for the two dispersions. Co-occurrence of thermal-induced gelation and liquid-liquid phase separation was observed for the prepolymer process, while, only liquid-liquid phase separation was discovered both rheologically and morphologically for the acetone process.",

author = "Madbouly, \{Samy A.\} and Otaigbe, \{Joshua U.\} and Nanda, \{Ajaya K.\} and Wicks, \{Douelas A.\}",

year = "2006",

language = "English (US)",

pages = "2366--2370",

note = "Society of Plastics Engineers Annual Technical Conference 2006, ANTEC 2006 ; Conference date: 07-05-2006 Through 11-05-2006",

}

Effect of preparation method on the rheological behavior of waterborne polyurethane disperswion. / Madbouly, Samy A.; Otaigbe, Joshua U.; Nanda, Ajaya K. et al.
2006. 2366-2370 Paper presented at Society of Plastics Engineers Annual Technical Conference 2006, ANTEC 2006, Charlotte, NC, United States.

Research output: Contribution to conference › Paper › peer-review

TY - CONF

T1 - Effect of preparation method on the rheological behavior of waterborne polyurethane disperswion

AU - Madbouly, Samy A.

AU - Otaigbe, Joshua U.

AU - Nanda, Ajaya K.

AU - Wicks, Douelas A.

PY - 2006

Y1 - 2006

N2 - Two classes of environmentally-friendly Polyurethane dispersions have been prepared via prepolymer emulsification process and acetone process. Rheological behavior of these dispersions has been studied as functions of PU-concentration, degree of post-neutralization and temperature. At a critical volume fraction of PU (φ ∼0.43), a dramatic increase in the reduced zero shear viscosity was detected for the two dispersions. Co-occurrence of thermal-induced gelation and liquid-liquid phase separation was observed for the prepolymer process, while, only liquid-liquid phase separation was discovered both rheologically and morphologically for the acetone process.

AB - Two classes of environmentally-friendly Polyurethane dispersions have been prepared via prepolymer emulsification process and acetone process. Rheological behavior of these dispersions has been studied as functions of PU-concentration, degree of post-neutralization and temperature. At a critical volume fraction of PU (φ ∼0.43), a dramatic increase in the reduced zero shear viscosity was detected for the two dispersions. Co-occurrence of thermal-induced gelation and liquid-liquid phase separation was observed for the prepolymer process, while, only liquid-liquid phase separation was discovered both rheologically and morphologically for the acetone process.

UR - https://www.scopus.com/pages/publications/33745597360

UR - https://www.scopus.com/pages/publications/33745597360#tab=citedBy

M3 - Paper

AN - SCOPUS:33745597360

SP - 2366

EP - 2370

T2 - Society of Plastics Engineers Annual Technical Conference 2006, ANTEC 2006

Y2 - 7 May 2006 through 11 May 2006

ER -

Effect of preparation method on the rheological behavior of waterborne polyurethane disperswion

Abstract

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All Science Journal Classification (ASJC) codes

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