R & D needs in the field of clay modified polymeric coatings

International Journal of Chemical Reactor Engineering, Journal Year: 2025, Volume and Issue: unknown

Published: March 6, 2025

Abstract Polymeric coatings play a crucial role in protecting surfaces from various environmental factors, such as corrosion, abrasion, and UV degradation. In recent years, the incorporation of nanoclays into polymeric has gained attention due to their ability enhance properties, including mechanical strength, barrier performance, flame retardancy. The performance these is significantly influenced by interaction between clay nano particles polymer matrices, dispersion technique finally its drying behaviour, which dictates formation continuous robust film. However, optimisation coating using filler for cost reduction impact modification on kinetics subsequent film properties remains complex phenomenon often poorly understood. Also, several other challenges remain, optimization within matrices assessing long term durability, under different conditions. This paper explores current research & development (R&D) needs modified significant opportunity enhanced reduction, sustainability industrial applications. insights this study will contribute deeper understanding interactions clay-polymer optimization, ultimately guiding more efficient durable coatings.

Language: Английский

Critical values for dimensional parameters of mesotheliomagenic mineral fibers: evidence from the dimensions and rigidity of MWCNT

Frontiers in Toxicology, Journal Year: 2025, Volume and Issue: 7

Published: April 22, 2025

MWCNT (multi-walled carbon nanotubes) used in 72 animal instillation or inhalation studies were classified by average length, width, Young's modulus, Rigidity Index (RI), and potency for mesothelioma animals. The RI is based on the Euler buckling theory. that induce have lengths >2 µm widths >37 nm, > 0.05 (µm2 x GPa 104). Many noncarcinogenic materials < lack biological rigidity. In comparison, Elongate Mineral Particle (EMP) populations with one exception 0.05. particles likely to include chrysotile fibrils >5 μm, amosite crocidolite fibers <60 sheet silicate <200 nm. product of percent EMPA, RI, biosolubility among silicates correlates known potency. derived models reproduce published values RM high statistical significance (P 0.05). Average width are critical parameters mesotheliomagenicity both EMPA mineral fiber.

Language: Английский

Assessment of the Effect of Multiple Processing of PHBV–Ground Buckwheat Hull Biocomposite on Its Functional and Mechanical Properties

Materials, Journal Year: 2024, Volume and Issue: 17(24), P. 6136 - 6136

Published: Dec. 15, 2024

The influence of the addition ground buckwheat hulls on properties biocomposite basis 3-hydroxybutyrate-co-3-hydroxyvalerate (PHBV) is presented here. changes in material after repeated reprocessing—up to five recycling cycles—are written paper. Analysis shrinkage, water adsorption, selected mechanical properties, tensile impact strength, hardness and microstructure surface layer was performed. results show that application into biopolymer decreases shrinkage. It improves dimensional stability, as well increases adsorption wake hydrophobic filler. natural filler also leads an increase composite stiffness. decrease strength elongation at break noted. reprocessing initially led a its but stabilized further processing cycles. This indicates improvement homogeneity. microscopic analysis shows hull particles were better embedded matrix recycling. PHBV–ground characterized by stable resistance, which makes it promising terms sustainable development.

Language: Английский