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Titolo:
The investigation of sized cellulose surfaces with scanning probe microscopy techniques
Autore:
Dickson, LE; Berg, JC;
Indirizzi:
Univ Washington, Dept Chem Engn, Seattle, WA 98195 USA Univ Washington Seattle WA USA 98195 ept Chem Engn, Seattle, WA 98195 USA Amgen Inc, Thousand Oaks, CA 91320 USA Amgen Inc Thousand Oaks CA USA 91320 gen Inc, Thousand Oaks, CA 91320 USA
Titolo Testata:
JOURNAL OF ADHESION SCIENCE AND TECHNOLOGY
fascicolo: 2, volume: 15, anno: 2001,
pagine: 171 - 185
SICI:
0169-4243(2001)15:2<171:TIOSCS>2.0.ZU;2-8
Fonte:
ISI
Lingua:
ENG
Soggetto:
ATOMIC-FORCE MICROSCOPE; PULP FIBERS; ADHESIVE PROPERTIES; WETTABILITY; IMAGES; FILMS;
Keywords:
Atomic force microscopy (AFM); hydrophobically modified cellulose; alkenyl succinic anhydride (ASA); sizing; wettability; adhesion;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Engineering, Computing & Technology
Citazioni:
21
Recensione:
Indirizzi per estratti:
Indirizzo: Berg, JC Univ Washington, Dept Chem Engn, Seattle, WA 98195 USA Univ Washington Seattle WA USA 98195 Engn, Seattle, WA 98195 USA
Citazione:
L.E. Dickson e J.C. Berg, "The investigation of sized cellulose surfaces with scanning probe microscopy techniques", J ADHES SCI, 15(2), 2001, pp. 171-185

Abstract

Scanning probe microscopy techniques of lateral force microscopy. pull-offforce measurement, and pulsed force mode adhesion imaging were employed tostudy the micro-scale surface chemistry of cellulose films hydrophobized by treatment with alkenyl succinic anhydride (ASA). Lateral force microscopyshowed a monotonic decrease in surface frictional dissipation with increasing sizing level. The distributions of pull-off forces measured over a (1 mum)(2) area showed a wide range of local adhesion values on all samples, yet disappearance of the highest adhesion sites with increasing level of sizing agent. The pulsed force mode results showed high-resolution adhesion images of cellulose that complemented the: pull-off force distribution results. These results indicate that scanning probe microscopy techniques are ableto detect the wettability heterogeneity of ASA-sized cellulose with nanometer resolution.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 01/12/20 alle ore 08:06:34