✦ LIBER ✦

Relation between the Variation of the Contact Angle and the Adhesion Force between Silica Surfaces

✍ Scribed by A El Ghzaoui

Publisher: Elsevier Science
Year: 1999
Tongue: English
Weight: 52 KB
Volume: 216
Category: Article
ISSN: 0021-9797
DOI: 10.1006/jcis.1999.6324

No coin nor oath required. For personal study only.

✦ Synopsis

Adhesion force and contact angle measurements between an aqueous solution of the nonionic surfactant TN 101 and silica surface have been studied. The variation of the contact angle is a function of the adsorption of the surfactant at the liquid-vapor, solid-liquid, and solid-vapor interfaces. The contact angle is maximum well below the cmc, when a monolayer of surfactant is formed at the silica surface. To this maximum contact angle corresponds a maximum adhesion force between the silica surfaces. This force is due to the hydrophobic interaction between the alkyl chain of the surfactant adsorbed at the silica surface.

📜 SIMILAR VOLUMES

Lateral Force Microscopy Study of the Fr

Lateral Force Microscopy Study of the Friction between Silica Surfaces

✍ Simon Biggs; Robert Cain; Neil W. Page 📂 Article 📅 2000 🏛 Elsevier Science 🌐 English ⚖ 97 KB

The friction between a single silica glass sphere and a flat silica glass surface has been investigated using lateral force microscopy. Two types of silica surface were investigated, one fully hydroxylated and the other partially dehydroxlated. These samples have markedly different wetting propertie

Liquid Drops on an Inclined Plane: The R

Liquid Drops on an Inclined Plane: The Relation between Contact Angles, Drop Shape, and Retentive Force

✍ Charles W. Extrand; Y. Kumagai 📂 Article 📅 1995 🏛 Elsevier Science 🌐 English ⚖ 367 KB

The Interaction Forces between Silica an

The Interaction Forces between Silica and Plasma-Treated Polypropylene Surfaces in Aqueous Solutions

✍ Laurence Meagher; Richard M. Pashley 📂 Article 📅 1997 🏛 Elsevier Science 🌐 English ⚖ 125 KB

The interaction forces between silica and plasma-treated polypropylene surfaces in aqueous NaCl solutions have been measured using a scanning force microscope. The measured interaction forces are well described by DLVO theory at large and moderate separation distances. However, at short range (<5 nm

Effects of Short-Chain Alcohols and Pyri

Effects of Short-Chain Alcohols and Pyridine on the Hydration Forces between Silica Surfaces

✍ Roe-Hoan Yoon; Subramanian Vivek 📂 Article 📅 1998 🏛 Elsevier Science 🌐 English ⚖ 163 KB

Forces between fully hydroxalated silica surfaces were measured using an atomic force microscope. The measurements were conducted in Nanopure water and in solutions containing various organic solutes such as methanol, ethanol, trifluoroethanol (TFE), and pyridine. The results obtained in Nanopure wa

Measurement and evaluation of the adhesi

Measurement and evaluation of the adhesive force between particles by the direct separation method

✍ Yasuhiro Shimada; Yorinobu Yonezawa; Hisakazu Sunada 📂 Article 📅 2003 🏛 John Wiley and Sons 🌐 English ⚖ 234 KB

We developed a new apparatus to measure the adhesive force between particles with a high resolution of approximately 2 nN. The force was measured directly by applying a pulling force to the particles with a contact needle. In addition, the separation process was observed with a 3CCD camera during th

Experimental Study of the Relationship b

Experimental Study of the Relationship between the Free Energy of Adhesion and the Repulsive Force between a Particle and a Solidification Front

✍ R.P. Smith; D. Li; D.W. Francis; J. Chappuis; A.W. Neumann 📂 Article 📅 1993 🏛 Elsevier Science 🌐 English ⚖ 358 KB