DI water
Droplet lab dataset series
This dataset series consists of four individual, standalone datasets, each focused on a specific substrate: Glass, Nylon, PMMA, and Teflon. Each dataset includes contact angle measurements obtained using four standard test liquids deionized water, glycerol, ethylene glycol, and silicone oil captured under ambient laboratory conditions (22°C and between 30-60% relative humidity). Measurements include advancing, receding, and, where applicable, static contact angles. The datasets are intended to support research in surface energy characterization, wettability analysis, adhesion science, and material selection. All measurements were performed using the Droplet Lab Dropometer and analyzed using a polynomial fitting algorithm. Outliers and non-measurable conditions (e.g., complete wetting or non-receding droplets) were excluded.
Datasets on this series:
n=20. 4 glass samples and 5 measurements on each sample.
Ethylene Glycol
Glycerol
Silicon Oil
DI Water
Ethylene Glycol
Glycerol
Silicon Oil
DI Water
Ethylene Glycol
Glycerol
Silicon Oil
DI Water
Ethylene Glycol
Glycerol
Silicon Oil
Keywords: contact angle, advancing angle, receding angle, static angle, surface energy (SFE), wettability, adhesion, coatings, Glass, Nylon, PMMA, Teflon, deionized water, glycerol, ethylene glycol, silicone oil, ambient conditions, replicates, QA.
Dataset highlights
Substrates
Glass, Nylon, PMMA, Teflon
Test liquids
DI water, glycerol, ethylene glycol, silicone oil
Measurements
Advancing, receding, and static (where applicable) contact angles
Conditions
Ambient laboratory (22 C, 30-60% RH), no active environmental control
Instrumentation
Dropometer (Droplet Lab); droplets dispensed with Hamilton threaded plunger syringe (Model 81242)
Analysis
Side-view droplet images processed via edge detection + polynomial curve fitting; multiple replicates per liquid-substrate pair
Quality control
Outliers and non-measurable conditions (e.g., complete wetting; non-receding droplets) removed with documented criteria
Methodology
Droplets were dispensed using a Hamilton threaded plunger syringe (Model 81242) mounted in the Droplet Lab Dropometer.
A polynomial curve fitting algorithm was used to extract contact angles from side-view droplet images.
For each liquid-substrate pair, multiple measurements were taken under ambient laboratory conditions, with no active environmental control.
The advancing angle was measured during droplet growth, and the receding angle was measured during withdrawal. For asymmetrical droplets, the angle furthest from the needle was recorded to avoid distortion.
Results where the droplet failed to recede or completely wetted the surface were excluded from the dataset.
Data Format & Dictionary.
Each dataset includes:
A CSV spreadsheet
- Liquid type
- Measurement type (advancing, receding, static)
- Droplet number (if repeated)
- Contact angle (degrees)
A supporting PDF summary document
Set of processed still images captured during each measurement
Application
Surface energy & wettability benchmarking
Adhesion & coating performance studies
Material compatibility and treatment optimization
Suggested citation
Use the substrate-specific citation shown within each tab. Example (Glass):
A CSV spreadsheet
Saini, G., & Droplet Lab Research Team. (2025). Contact angle measurements on glass with four test liquids under ambient conditions (Version [v1.0]). Droplet Lab. [DOI: pending (will be minted upon archival)]
BibTeX
@dataset{dropletlab_glass_2025,
title = {Contact angle measurements on glass with four test liquids under ambient conditions},
author = {Saini, Gurdeep and Droplet Lab Research Team},
year = {2025},
version = {v1.0},
publisher = {Droplet Lab},
doi = {pending (will be minted upon archival)},
url = {https://dropletlab.com/validation/dataset/}
}Access the Datasets
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