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

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

Research output: Contribution to conferencePaper

2 Citations (Scopus)

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 languageEnglish (US)
Pages2366-2370
Number of pages5
StatePublished - Jul 10 2006
EventSociety of Plastics Engineers Annual Technical Conference 2006, ANTEC 2006 - Charlotte, NC, United States
Duration: May 7 2006May 11 2006

Other

OtherSociety of Plastics Engineers Annual Technical Conference 2006, ANTEC 2006
CountryUnited States
CityCharlotte, NC
Period5/7/065/11/06

Fingerprint

Polyurethanes
Dispersions
Liquids
Acetone
Phase separation
Emulsification
Shear viscosity
Gelation
Volume fraction
Temperature

All Science Journal Classification (ASJC) codes

  • Chemical Engineering(all)
  • Polymers and Plastics

Cite this

Madbouly, S., Otaigbe, J. U., Nanda, A. K., & Wicks, D. A. (2006). Effect of preparation method on the rheological behavior of waterborne polyurethane disperswion. 2366-2370. Paper presented at Society of Plastics Engineers Annual Technical Conference 2006, ANTEC 2006, Charlotte, NC, United States.
Madbouly, Samy ; Otaigbe, Joshua U. ; Nanda, Ajaya K. ; Wicks, Douelas A. / Effect of preparation method on the rheological behavior of waterborne polyurethane disperswion. Paper presented at Society of Plastics Engineers Annual Technical Conference 2006, ANTEC 2006, Charlotte, NC, United States.5 p.
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Madbouly, S, Otaigbe, JU, Nanda, AK & Wicks, DA 2006, 'Effect of preparation method on the rheological behavior of waterborne polyurethane disperswion' Paper presented at Society of Plastics Engineers Annual Technical Conference 2006, ANTEC 2006, Charlotte, NC, United States, 5/7/06 - 5/11/06, pp. 2366-2370.

Effect of preparation method on the rheological behavior of waterborne polyurethane disperswion. / Madbouly, Samy; Otaigbe, Joshua U.; Nanda, Ajaya K.; Wicks, Douelas A.

2006. 2366-2370 Paper presented at Society of Plastics Engineers Annual Technical Conference 2006, ANTEC 2006, Charlotte, NC, United States.

Research output: Contribution to conferencePaper

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AU - Nanda, Ajaya K.

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Madbouly S, Otaigbe JU, Nanda AK, Wicks DA. Effect of preparation method on the rheological behavior of waterborne polyurethane disperswion. 2006. Paper presented at Society of Plastics Engineers Annual Technical Conference 2006, ANTEC 2006, Charlotte, NC, United States.