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Research Spending & Results

Award Detail

Awardee:PURDUE UNIVERSITY
Doing Business As Name:Purdue University
PD/PI:
  • Kendra Erk
  • (765) 494-4118
  • erk@purdue.edu
Co-PD(s)/co-PI(s):
  • Seth E Lindberg
  • Patrick Stenger
Award Date:06/22/2021
Estimated Total Award Amount: $ 305,283
Funds Obligated to Date: $ 305,283
  • FY 2021=$305,283
Start Date:09/01/2021
End Date:08/31/2024
Transaction Type:Grant
Agency:NSF
Awarding Agency Code:4900
Funding Agency Code:4900
CFDA Number:47.041
Primary Program Source:040100 NSF RESEARCH & RELATED ACTIVIT
Award Title or Description:GOALI: Structure-Property-Processing Relationships of Concentrated Surfactant Solutions
Federal Award ID Number:2112956
DUNS ID:072051394
Parent DUNS ID:072051394
Program:PMP-Particul&MultiphaseProcess
Program Officer:
  • William Olbricht
  • (703) 292-4842
  • wolbrich@nsf.gov

Awardee Location

Street:Young Hall
City:West Lafayette
State:IN
ZIP:47907-2114
County:West Lafayette
Country:US
Awardee Cong. District:04

Primary Place of Performance

Organization Name:Purdue University
Street:701 West Stadium Ave
City:West Lafayette
State:IN
ZIP:47907-2045
County:West Lafayette
Country:US
Cong. District:04

Abstract at Time of Award

The goal of this project is to determine how concentrated surfactant-based solutions are affected by common chemical additives and manufacturing processes. Concentrated surfactant solutions are used to formulate detergent-based products for cleaning, laundry, and other personal care. A better understanding of the solution’s structure-property-processing relationships will enable industry to more efficiently manufacture concentrated solutions to achieve desired properties and performance while also meeting sustainability goals such as reducing water from formulated liquids. Thus, the new knowledge resulting from this project will ultimately lead to reduced economic and environmental costs associated with detergent-based products as well as corresponding gains in important public health measures related to global hygiene. This project is a collaboration between faculty and students at Purdue University and technical staff at The Procter and Gamble Company (P&G), providing the Purdue graduate and undergraduate students with valuable industrial experiences and professional development opportunities. In addition to the research activities, lab modules and lecture demos will be created in collaboration with P&G to teach the fundamentals of phase diagrams to engineering students through an engaging, hands-on approach coupling physical models of surfactant solutions with online computational tools. Model lamellar-structured surfactant solutions containing different additives will be investigated through a series of rheophysical, scattering, and birefringence experiments coupled with fluid dynamic modeling and pilot-scale processing studies. The results will hep evaluate the impact of common formulation additives and processing routes on the multiscale structures and properties of surfactant solutions, including surfactant bilayer spacing, thickness, and bending moduli. In addition to studying conventional dodecyl sulfate surfactants, the research team will also investigate a class of microbial biosurfactants, which are more sustainable and environmentally friendly. Project deliverables include: (1) experimentally validated constitutive models that connect macroscale dynamics of concentrated lamellar-structured surfactant solutions with nano- and micro-scale characteristics of surfactant bilayers; and (2) predictive processing maps to ultimately create concentrated surfactant solutions at scale with a desired microstructure and end-use performance. Project outcomes are expected to be relevant to a variety of areas beyond cleaning and personal care, including environmental remediation, surfactant manufacturing, and lipid-based vaccine development. This project will build upon fundamental experimental studies that were performed in the early 1990s on the flow behavior of liquid crystalline surfactant fluids and the impact of shear on the fluid’s microstructure as well as recent work that used in situ rheophysical measurements to connect power-law shear thinning rheology with the surprising occurrence of macroscale wall slip and plug flow in concentrated surfactant solutions. This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.

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