Preparation of ODA-clay hybrid films by Langmuir-Blodgett technique

TL;DR

This paper reports the preparation and characterization of ODA-clay hybrid films using the Langmuir-Blodgett technique, demonstrating their structural properties and surface coverage.

Contribution

It introduces a novel method for creating ODA-hectorite hybrid films via Langmuir-Blodgett, with detailed structural analysis.

Findings

Monolayer thickness of 2 nm

Surface coverage exceeds 80%

Clay platelet dimensions characterized

Abstract

Hybrid monolayers of clay minerals (hectorite) and Octadecyamine (ODA) were prepared using the Langmuir-Blodgett (LB) technique. Surface pressure-area per molecule isotherm, FTIR and atomic force microscopy were used to confirm and analyze the ODA-hectorite hybrid films. The monolayer thickness is 2 nm and average height, length and width of individual clay platelets ranges between 1.5 to 2 nm, 500 to 1250 nm and 100 to 115 nm respectively. The surface coverage was more than 80%.