Dear Dr. Perimbeti Saikumar,

I suggest you to have a look at the following papers, where different methods of deposition are used:

-Deposition of Fluorocarbon Thin Films on Polypropylene Substrate by RF Magnetron Sputtering

Yu Hui Zhang, Quan Ji, Wen Fei Chen

Advanced Materials Research, (Volumes 79-82), pp. 875-878 (2009)

Available on RG at:

https://www.researchgate.net/publication/277452730_Deposition_of_Fluorocarbon_Thin_Films_on_Polypropylene_Substrate_by_RF_Magnetron_Sputtering

- Chemical Modification of Polypropylene and Polystyrene through Fluorocarbon Ion Beam Deposition

Wen-Dung Hsu, Christopher Fell, Sharon Pregler, Susan B. Sinnott

J. Phys. Chem. C, 113, 41, 17860-17865 (2009)

Available at: https://pubs.acs.org/doi/abs/10.1021/jp904833w

Best regards, Pierluigi Traverso

dear Perimbeti Saikumar ;

sure the PTFE coating decrease surface energy of PP to increase in the particle size of the PTFE coating reduces the sliding angle, which indicates a lower amount of energy required to remove a droplet from the surface. larger particle size will force the droplet to stretch over a larger gap and create fewer liquid-gas interfaces.for more details can read the following references;

https://www.tstar.com/blog/bid/33845/surface-energy-of-plastics

https://www.sciencedirect.com/science/article/abs/pii/S0022113917303731#!

Article A novel technique for coating polypropylene yarns with polyt...

The above link may fulfill ur requirement. please go through this.