Patternable Poly(chloro-p-xylylene) Film with Tunable Surface Wettability Prepared by Temperature and Humidity Treatment on a Polydimethylsiloxane/Silica Coating.

ABSTRACT: Poly(chloro-p-xylylene) (PPXC) film has a water contact angle (WCA) of only about 84°. It is necessary to improve its hydrophobicity to prevent liquid water droplets from corroding or electrically shorting metallic circuits of semiconductor devices, sensors, microelectronics, and so on. Herein, we reported a facile approach to improve its surface hydrophobicity by varying surface pattern structures under different temperature and relative humidity (RH) conditions on a thermal curable polydimethylsiloxane (PDMS) and hydrophobic silica (SiO₂) nanoparticle coating. Three distinct large-scale surface patterns were obtained mainly depending on the contents of SiO₂ nanoparticles. The regularity of patterns was mainly controlled by the temperature and RH conditions. By changing the pattern struct

SUBMITTER: Yu Y 

PROVIDER: S-EPMC5951332 | biostudies-literature | 2018 Mar

REPOSITORIES: biostudies-literature