Currently, i am working on a project related to hydrophobic coatings. The problem we are facing is with the equipment availability. is it a good practice to use CAD to know WCA.
below is the image i tried to find WCA
Dear Narasimha,
congratulation for your interesting project.
I think that you can use any software for the measure of the angle.
However, please see the image "A water drop on a lotus leaf surface showing contact angles of approximately 147°." in Wikipedia
https://en.wikipedia.org/wiki/Contact_angle
And follow the same approach.
Best wishes
ACS
Dear Narasimha,
congratulation for your interesting project.
I think that you can use any software for the measure of the angle.
However, please see the image "A water drop on a lotus leaf surface showing contact angles of approximately 147°." in Wikipedia
https://en.wikipedia.org/wiki/Contact_angle
And follow the same approach.
Best wishes
ACS
Narasim, of course any software for a visual inspection is adequate for your purpose. I would only suggest to use a higher image quality (in comparison to the image above), otherwise the extracted values might be erroneous! Good luck, Dirk
Dear Narasimha,
Just a small remark first, you probably know, but the angle given in your picture is not the water contact angle. But it may be easier to determine the value like this. From the value in the picture it follows that your contact angle is 180° - 40.02° = 139.8°.
Although any software that allows you to determine the angle between two lines is suitable for evaluating your pictures, I would recommend choosing a program that was written for the purpose of determining the contact angle. There is a very nice, free, open source program available on:
http://www.sircams.ed.ac.uk/emsg/software.html
If you duly cite the makers I am sure they will be honored that you use their program.
Kind regards, Leo
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