Journal of Vinyl and Additive Technology, Journal Year: 2024, Volume and Issue: unknown
Published: Oct. 30, 2024
Abstract Biodegradable films mitigate plastic pollution but often lack UV‐aging resistance, shortening their lifespan. While anti‐aging additives can boost the films' durability, small molecule migration constrains extension of service life. This study introduces a straightforward solid‐phase reaction for producing carbon black (CB) grafted with UV absorber UV531, termed CB‐UV531. material was then blended biodegradable polymer PBAT and transformed into film via blow molding, yielding durable UV‐resistant (PBAT/CB‐UV531). grafting does not require any solvents, thereby reducing solvent contamination waste, it is simple to operate, allowing scalable production. Compared unmodified CB, obtained CB‐UV531 exhibits significantly improved thermal stability, which effectively reduce loss UV531 during subsequent high‐temperature film‐blowing process. Furthermore, chemically bonded on surface CB‐UV531, coupled its reduced particle size, promotes enhanced dispersibility consistent stability within PBAT/CB‐UV531 film, markedly improving long‐term resistance aging. method expected enhance effects various commercial light stabilizer be used extend lifespan different materials. Highlights A developed prepare reveals smaller size superior dispersibility. prepared blowing in reduced. shows aging resistance.
Language: Английский