# Novel method for determination of contact angle of highly volatile liquids

## TL;DR

This paper introduces a new method combining finite element analysis and energy principles to accurately measure the contact angle of highly volatile liquids on different substrates.

## Contribution

It presents a novel approach that effectively calculates the contact angle of volatile liquids, improving measurement accuracy over existing methods.

## Key findings

- Successfully applied to binary liquids on microstructured and smooth surfaces
- Accurately estimates contact angles of volatile and non-volatile liquids
- Offers an efficient alternative to traditional contact angle measurement techniques

## Abstract

In this paper, a novel method for the measurement of equilibrium contact angle of highly volatile binary liquids is proposed. The proposed method, which combines finite element method and energy equilibration, is able to calculate the solid-liquid contact area. The calculated solid-liquid contact area can then be used to estimate the equilibrium contact angle. Using the proposed approach, the contact angles of binary liquid droplet on a microgrooved and smooth polycarbonate substrate were calculated. The proposed method can be an efficient tool for finding the contact angle of all liquids (both volatile and non-volatile).