Investigation of Superhydrophobic/Hydrophobic Materials Properties Using Electrospinning Technique

Abstract

The aim of this research is to study the surface alteration characteristics and surface morphology of the superhydrophobic/hydrophobic nanocomposite coatings prepared by an electrospinning method to coat various materials such as glass and metal. This is considered as a low cost method of fabrication for polymer solutions of Polystyrene (PS), Polymethylmethacrylate (PMMA) and Silicone Rubber (RTV). Si were prepared in various wt% of composition for each solutions. Contact angle measurement, surface tension, viscosity, roughness tests were calculated for all specimens. SEM showed the morphology of the surfaces after coated. PS and PMMA showed superhydrophobic properties for metal substrate, while Si showed hydrophobic characteristics for both metal and glass substrate. Polymer solution of (15%Si/Thinner (Th)) owned best roughness for glass substrate and polymer solution of (4%PMMA/Tetrahydrofuran (THF)) owned best roughness for metal substrate.

Electrospun nano-barium titanate/polycaprolactone composite coatings on titanium and Ti13Nb13Zr alloy

“…The viscosity of the polymer and polymer concentration was found to be crucial factors in determining the morphological properties of the fibres. 42,45,46 A pilot study determined the optimal polymer concentrations to mix with different barium titanate concentrations to achieve pore sizes and fibre diameters suitable for osteoblast and regenerative bone cells needed for bone healing and regeneration. Beads, rather than uniform fibres, were observed when the polymer concentration was 10% W/V PCL.…”

Síntese e caracterização de revestimentos híbridos em aço A36 para aplicações anticorrosivas

“…Pesquisadores dedicam seus estudos em temas relacionados aos materiais hidrofóbicos, onde, o estudo da molhabilidade é importante para o desenvolvimento das superfícies hidrofóbicas. Para entender se os revestimentos são hidrofóbicos ou hidrofílicos é necessário realizar uma análise por meio da mensuração do ângulo de contato de uma gota de água sobre uma superfície, como mostra a Figura 1 12 . As superfícies hidrofóbicas podem ser preparadas a partir de revestimentos superficiais simples usando compostos, como polímeros e TEOS 13 .…”

Research Progress of Self-Cleaning, Anti-Icing, and Aging Test Technology of Composite Insulators

“…One is to build a rough micronanostructure on the surface of the material with low surface energy, and the other is to add a low surface energy material modification on the rough surface. The existing mature preparation methods of superhydrophobic materials include the etching method [61,62], template method [63,64], spraying method [65,66], solution soaking method [67][68][69], sol-gel method [70], electrospinning method [71,72], electrochemical deposition method [73,74], and phase separation method [75], among others.…”