In situ α-alumina hydrophobization dynamics at acid pH: effectiveness limitations of short-chain amphiphilic molecules

In situ α-alumina hydrophobization dynamics at acid pH: effectiveness limitations of short-chain amphiphilic molecules

The present work highlights that α-alumina hydrophobicity (attained by the in situ modification of its surface properties with water soluble organic monoacids) cannot be increased by using molecules with low acidity (pKa) values due to the alumina zeta potential profile at pHs below approximately 4....

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Bibliographic Details
Main Authors: D. O. Vivaldini, A. P. Luz, V. R. Salvini, V. C. Pandolfelli
Format: Article
Language:English
Published: Associação Brasileira de Metalurgia e Materiais (ABM); Associação Brasileira de Cerâmica (ABC); Associação Brasileira de Polímeros (ABPol) 2013-09-01
Series:Materials Research
Subjects:
hydrophobization
contact angle
pKa
alumina
Online Access:http://www.scielo.br/pdf/mr/v17n1/aop_matres201813.pdf

Internet

http://www.scielo.br/pdf/mr/v17n1/aop_matres201813.pdf

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