TY - JOUR
T1 - Competitive Adsorption Phenomena in Nonaqueous Tape Casting Suspensions
AU - Blackman, Kim
AU - Slilaty, Rita M.
AU - Lewis, Jennifer A.
N1 - Copyright:
Copyright 2017 Elsevier B.V., All rights reserved.
PY - 2001/11
Y1 - 2001/11
N2 - Competitive adsorption phenomena in alumina (α-Al2O3)-polyvinyl butyral (PVB)-Menhaden fish oil (MFO) suspensions are studied using diffuse reflectance Fourier transform infrared spectroscopy and thermogravimetric analysis. PVB and MFO commonly serve as binder and dispersant species, respectively, in nonaqueous tape casting systems. Adsorption isotherm measurements reveal that both PVB and MFO have an affinity for U-Al2O3 surfaces, with corresponding plateau coverages of 3.4 and 2.3 mg/m2, respectively. Sequential competitive adsorption of these species occurred during two-stage milling. MFO was fully adsorbed onto a-Al2O3 powder in the absence of PVB during first-stage milling. PVB was then introduced to the system during second-stage milling and found to displace preadsorbed MFO species from such surfaces. At the culmination of milling, PVB composed 25-35 wt% of the adsorbed organic layer. Complete displacement of MFO was not observed, which limited PVB adsorption on α-Al2O3.
AB - Competitive adsorption phenomena in alumina (α-Al2O3)-polyvinyl butyral (PVB)-Menhaden fish oil (MFO) suspensions are studied using diffuse reflectance Fourier transform infrared spectroscopy and thermogravimetric analysis. PVB and MFO commonly serve as binder and dispersant species, respectively, in nonaqueous tape casting systems. Adsorption isotherm measurements reveal that both PVB and MFO have an affinity for U-Al2O3 surfaces, with corresponding plateau coverages of 3.4 and 2.3 mg/m2, respectively. Sequential competitive adsorption of these species occurred during two-stage milling. MFO was fully adsorbed onto a-Al2O3 powder in the absence of PVB during first-stage milling. PVB was then introduced to the system during second-stage milling and found to displace preadsorbed MFO species from such surfaces. At the culmination of milling, PVB composed 25-35 wt% of the adsorbed organic layer. Complete displacement of MFO was not observed, which limited PVB adsorption on α-Al2O3.
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U2 - 10.1111/j.1151-2916.2001.tb01043.x
DO - 10.1111/j.1151-2916.2001.tb01043.x
M3 - Article
AN - SCOPUS:0035526619
SN - 0002-7863
VL - 84
SP - 2501
EP - 2506
JO - Journal of the American Chemical Society
JF - Journal of the American Chemical Society
IS - 11
ER -