Hot embossed micro-textured thin superhydrophobic Teflon FEP sheets for low ice adhesion

Superhydrophobic Coatings with Reduced Ice Adhesion

A brief description of how superhydrophobicity can help mitigate the ice accretion problem on power network equipment and other exposed structures by reducing ice-tosurface adhesion is presented. Basic models, namely the Wenzel and Cassie–Baxter models, accounting for the contact angle of water on solid surfaces relating to the influence of surface roughness on hydrophobicity are discussed. The...

MEASUREMENT AND MODELING OF NOx OFFGASING FROM FEP TEFLON CHAMBERS

The College of Engineering, Center for Environmental Research and Technology (CE-CERT) at the University of California (UCR) is undertaking a new project to develop a “Next Generation” environmental chamber for evaluating chemical mechanisms under lower pollutant conditions than has previously been possible (Carter et al., 1999). A major objective of this project is to generate mechanism evalua...

Comparative study of hot embossed micro structures fabricated by laboratory and commercial environments

Hot embossed microstructures fabricated by laboratory and commercial environments have been studied. The laboratory process uses silicon with micropyramid patterns as the mold insert. Fine replication by using Polymethyl Methacrylate (PMMA) has been achieved. The commercial process uses electroplated nickel as the mold insert. Polyvinyl Chloride (PVC), which has a lower glass transition point t...

Laser methods for deposition of Teflon thin films and modification of Teflon’s adhesion properties PhD thesis

Epitaxially Textured Pr0.6Ca0.4MnO3 Thin Films Under Considerably Low Substrate Temperature

We report the growth of well-crystallized and epitaxially textured Pr0.6Ca0.4MnO3 thin films on SrTiO3 substrates by pulsed laser deposition at considerably low substrate temperatures, as low as 450 ◦C, without high-temperature post-annealing treatments. Although a strong ferromagnetic interaction as well as a large irreversible metamagnetic transition with a training effect have been observed ...