The chemical properties and wetting properties of the LDPE substrate can be regulated.

Scientists have studied the surface chemistry and wetting properties of LDPE substates combined with octafluoroclybutane and acrylic co-polymers through pulsed plasma polymerization.
of a flat substrate lasts for more than 8 weeks, which proves the wetting stability of ultra-thin coatings.
Octafluorocrybutane and Acrylic acid (C 4 F 8 -co-AA) have been co-clustered on low density polyethylene (LDPE) and slides at various pulse cycles of rf frequency pulsed plasma

. The surface wetting of plasma polymer coatings has traditionally been regarded as a substrate-independent feature.
high concentrations of hydrochloric acid can improve hydrophobicity by reducing the hollowing-out ratio, while the impact of the substrate will result in the hydrophobicity of ultra-thin coatings.
stability of ultra-thin coatings is
. Measurements of X-ray photoelectronic energy spectrum and coating thickness confirm that, for ultra-thin polymer coatings, hydrophobic substrates can affect sudden increases in the contact angle of water at lower room-to-air ratios. It is emphasized that precise control of surface wetting can be achieved by adjusting plasma parameters. The substrate dependence of flat substrates lasts for more than 8 weeks, which proves the wetting stability of ultra-thin coatings.
paper has been published in the Journal of Coating Technology and Research 2020 in volume 17.
.