Improved sample preparation and surface analysis methodology for contact angle measurements on coal (heterogeneous) surfaces
Document Type
Article
Publication Date
1-1-2000
Abstract
An improved experimental procedure to measure contact angle has been consolidated with coal surface preparation involving polishing with abrasive paper, alumina powder, and a cloth, followed by ultrasonic and mechanical cleaning. Specifically, the captive-bubble measuring technique has been compared with the sessile-drop technique and the former has been recommended for the examination of the hydrophobic properties of coal surfaces. Results of the research program, which is currently under way, on the effect of the nature, amount, size and distribution of mineral inclusions in coal on its wettability are briefly reviewed.
Publication Title
Coal Preparation
Recommended Citation
Drelich, J.,
Laskowski, J.,
&
Pawlik, M.
(2000).
Improved sample preparation and surface analysis methodology for contact angle measurements on coal (heterogeneous) surfaces.
Coal Preparation,
21(3), 247-275.
http://doi.org/10.1080/07349340008945621
Retrieved from: https://digitalcommons.mtu.edu/michigantech-p/9252