Enhanced anticorrosion coatings prepared from incorporation of well‐dispersed silica nanoparticles into fluorinated polyimide matrix

Abstract

Series of advanced anticorrosive hybrid coatings comprising of organo-soluble fluorinated polyimide (SFPI) matrix dispersed with different feeding ratio of inorganic silica (SiO 2 ) nanoparticles has been successfully prepared through a conventional chemical imidization of polyimide and acid catalyzed sol-gel process of TEOS. It should be noted that the incorporation of SiO 2 nanoparticles into the SFPI matrix can effectively enhance the corrosion protection performance on cold-rolled steel (CRS) electrode against corrosive species in saline condition when compared with that of neat polymeric coatings based on a series of standard electrochemical corrosion measurements, such as corrosion potential, polarization resistance, corrosion current, and impedance spectroscopy. POLYM. COMPOS., 31:2025-

Effects of organically modified nanoclay particles on the mechanical properties of aliphatic polyurethane/clay nanocomposite coatings

“…Over the last decade, polymer nanocomposites made with layered silicates have been intensively studied for their novel physical and mechanical properties. There are a number of potential improvements due to inclusion of layered silicates in polymers such as increase in modulus, toughness, barrier properties, flame retardancy, dimensional and thermal stability [11][12][13][14][15][16][17][18]. All the results illustrate that in order to achieve the best possible properties of polymerclay nanocomposites, obtaining a stable dispersion in which the silicate nanolayers are completely exfoliated in the polymeric matrix is a crucial consideration; therefore, during nanocomposite preparation, the evaluation and assessment of the morphology of these nanocomposites is of great importance [19][20][21][22][23][24][25][26][27].…”

Si3N4@RGO Hybrids for Epoxy Coatings With Enhanced Anticorrosion Performance

“…Inorganic particles loaded in polymer coatings can effectively improve the corrosion resistance of coatings . According to Shi et al , the presence of inorganic fillers like SiO 2 and Fe 2 O 3 in epoxy coating significantly enhanced the corrosion resistance of the coating.…”

Synthesis and anticorrosive properties of electroactive polyimide/SiO2 composites

“…Aromatic polyimide (PI) is a kind of high‐performance engineering plastic with outstanding properties, such as good film forming ability, excellent thermal stability, mechanical properties and high molecular weight. Because of these outstanding properties, PI has great potential for advanced applications in aerospace materials, electrochromic materials , gas separation membranes , and anticorrosion coatings . Corrosion poses a serious economic and industrial threat, as well as, potential danger to humans.…”