Compression molding processed superhydrophobic CB/CeO2/PVDF/CF nanocomposites with highly robustness, reusability and multifunction

Abstract

Bioinspired superhydrophobic treatment imparts unique features to surfaces such as self-cleaning, water-proofing, anti-icing, anti-fouling, etc. Here we introduce a simple approach to manufacture carbon fiber based superhydrophobic nanocomposite materials. The developed materials had high mechanochemical durability and electrical conductivity which should find promising applications in many engineering fields. The nanocomposites were manufactured via molding process and comprised of carbon fiber (CF), poly(vinylidene fluoride) (PVDF), carbon black (CB) and cerium dioxide (CeO2) nanoparticles, which is typically applied to fabricate carbon fiber reinforced plastics (CFRP) for structural use. The CFRP nanocomposites show a

Robust Superhydrophobic Surface on Polypropylene with Thick Hydrophobic Silica Nanoparticle-Coated Films Prepared by Facile Compression Molding

“…Superhydrophobic surfaces have been extensively studied for their unique interfacial interaction between water and solid surface, and the superhydrophobic surface was defined by a water contact angle (CA) greater than 150 • , and sliding angle (SA) less than 10 • [1,2] with numerous special properties, such as self-cleaning [3][4][5], anti-icing [2,6], water-proofing [7] and anti-fouling [4,5,7]. These properties may come from the minimum contact area of the water-solid interface as well as the trapped air at the interface, and they can control the material and energy transport at the interface.…”

“…Many scientists have focused on the fabrication of superhydrophobic coated surfaces with polymers and low surface energy organic materials that help to improve the surface roughness and durability [7]. Various different techniques were used for fabrication of superhydrophobic surfaces such as etching [1], dip-coating [3], spray-coating [11,12], spin-coating [13], sol-gel [4], electrodeposition [14], anodization [15], electrochemical deposition [16], phase separation [17], casting [2], and nanocomposite coatings [7]. However, some techniques are complex while others use toxic materials.…”

“…The compression molding is one of commonly used manufacturing processes in industry, and the fabricated micro-nano structures on thermoplastic polymer materials make the surface more durable than a coated surface [18][19][20]. There are several polymer materials used in the compression molding process such as polyvinylidene fluoride [7], polystyrene [21], polypropylene [19], and silicone rubber [18]. Thermoplastic polypropylene (PP) is widely used due to its lightweight and non-toxicity properties.…”

“…Thermoplastic polypropylene (PP) is widely used due to its lightweight and non-toxicity properties. Additionally, the superhydrophobic surface on PP can be easily achieved by softening upon heating and hardening by cooling, or using a solvent due to its hydrophobicity [7,22,23].…”

Carbon Nanofiber/SiO2 Nanoparticle/HDPE Composites as Physically Resilient and Submersible Water-Repellent Coatings on HDPE Substrates

“…Carbon nanofibers (CNFs), in particular, are known for their exceptional mechanical properties and have been used to impart resilience within superhydrophobic composites and, in some cases, have been dually employed as the roughening agent . However, research that targets enhanced physical durability through direct use of fibers, typically involves fabricating free-standing objects, i.e., not attached to an external substrate/support (e.g., electrospun membranes, natural monoliths, and use of molds/templates), therefore, limiting their current usage to aid the physical resilience of surface coatings. − Alternatively, novel methods to enhance underwater stability have been reported, including bioinspired nanofur with an applied hydraulic pressure to prevent plastron destabilization, and in situ gas generation via the catalytic degradation of hydrogen peroxide for plastron regeneration. , Although these are both highly innovative approaches, the scalability and practicality of such methods are uncertain. Hence, facile nanofabrication methods, capable of generating both resilient and stable superhydrophobic coatings on polymeric substrates, require further investigation.…”