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Surface Active Agents

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Surfactants, named for their behavior at interfaces, positively adsorb at the interfaces of two phases, reducing interfacial tension. Their versatility as emulsifiers, detergents, and foaming agents stems from this ability. Surfactants, often termed amphiphiles, share the property of amphipathy, with molecules having both hydrophilic and hydrophobic portions. The hydrophilic part is called the head, and the hydrophobic part, including an elongated alkyl substituent, forms the tail.Surfactants...

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Updated: Jul 3, 2026

Fabrication of Superhydrophobic Metal Surfaces for Anti-Icing Applications

Fabrication of Superhydrophobic Metal Surfaces for Anti-Icing Applications

Published on: August 15, 2018

Superhydrophobic surfaces from various polypropylenes.

R Rioboo¹, M Voué, A Vaillant

¹Centre de Recherche en Modelisation Moleculaire, Universite de Mons-Hainaut, Parc Initialis, Avenue Copernic, 1, B-7000 Mons, Belgium. romain.rioboo@crmm.umh.ac.be

Langmuir : the ACS Journal of Surfaces and Colloids

|July 24, 2008

Summary

Researchers optimized superhydrophobic surfaces using isotactic polypropylenes via soft chemistry. Lowering polymer concentration and film thickness reduced the likelihood of achieving superhydrophobicity, impacting surface properties.

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Last Updated: Jul 3, 2026

Fabrication of Superhydrophobic Metal Surfaces for Anti-Icing Applications

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Published on: August 15, 2018

Rendering SiO2/Si Surfaces Omniphobic by Carving Gas-Entrapping Microtextures Comprising Reentrant and Doubly Reentrant Cavities or Pillars

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Fabricating Superhydrophobic Polymeric Materials for Biomedical Applications

Fabricating Superhydrophobic Polymeric Materials for Biomedical Applications

Published on: August 28, 2015

Area of Science:

Materials Science
Polymer Chemistry
Surface Science

Background:

Superhydrophobic surfaces exhibit water-repellent properties.
Controlling surface characteristics is crucial for material performance.
Polypropylene (PP) is a versatile polymer for various applications.

Purpose of the Study:

To prepare and optimize superhydrophobic surfaces using isotactic polypropylenes.
To investigate the influence of experimental conditions on superhydrophobicity.
To understand the relationship between polymer properties and surface behavior.

Main Methods:

Soft chemistry techniques were employed for surface preparation.
Isotactic polypropylenes of varying molecular weights were utilized.
Experimental parameters such as polymer concentration and film thickness were systematically varied.

Main Results:

Superhydrophobic behavior was optimized by adjusting experimental conditions.
Decreasing polymer concentration and/or film thickness reduced the probability of achieving superhydrophobicity.
Advancing and receding contact angles were measured to quantify surface properties.

Conclusions:

The preparation of superhydrophobic surfaces from polypropylenes is feasible.
Experimental conditions significantly influence the development of superhydrophobicity.
Film thickness and polymer concentration are critical factors for achieving desired surface properties.