Mohd naqiudin che ibrahim

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Questions related from Mohd naqiudin che ibrahim

How to proof whether the water droplet is in Cassie or Wenzel state?

when a water droplet is dropped on top of a roughsurface, the water is said to be in Cassie or Wenzel state. So how can i prove that the water droplet does penetrate into the rough surface or just...

02 February 2017 9,198 0 View

What is the purpose of measuring acid and base contact angle on hydrophobic surface?

i have read some articles related in hydrophobic surface, but i did not understand the meaning of measuring the contact angle of acid and base on the hydrophobic surface surface. what is the...

07 July 2016 6,619 1 View

Any suggestion to buy fluoro chemical?

greeting's.. i dont know whether this question is off topic or not, but this is very important in my research. do anybody here ever bought (HEPTADECAFLUORO-1,1,2,2-TETRAHYDRODECYL)TRIMETHOXYSILANE...

04 April 2016 8,499 3 View

How can I dissolve heptadecafluorodecyltrimethoxysilane (HFTMS) in solution for hydrophobic coating?

I am doing research in producing hydrophobic coating. but my problem here is that the hydrophobic agent which is the heptadecafluorodecyltrimethoxysilane (HFTMS) did not dissolve in my sol-gel...

01 January 2016 5,870 2 View

How do I calculate viscosity with falling sphere viscometer technique?

I recently calculating the water viscosity by using falling sphere viscometer. however my problem is i did not get the correct viscosity even thought i have tried measuring water viscosity. i...

01 January 2016 9,212 4 View