POS9-0157
Comparison of Coating and Blending of Aramid Nanofiber for Flame Retardant Acrylate Plastics
Topic
S9. Polymer Technology for Sustainability
When and Where
Sep 30, 2026
08:30 - 09:30
Room 301 (Grand Ballroom)
Session Chairs
Heesuk KIM
Jinhye BAE
Presenter(s)
taehyeon kim (Sogang university)
Co-Author(s)
Abstract
Acrylonitrile styrene acrylate (ASA) is an attractive engineering thermoplastic, but its high flammability and melt dripping remain critical obstacles. Herein, we introduce a surface localized flame protection strategy using aramid nanofiber (ANF) coatings. ANFs were produced by deprotonating para-aramid fibers in a DMSO/KOH system and then applied to plasma treated ASA sheets via simple dip coating process. Subsequent solvent exchange and drying induced the formation of a dense and continuous ANF layer on the ASA surface. Compared with neat ASA, commercial flame retardant-blended ASA, and ANF-blended ASA, the ANF- coated ASA effectively reduced melt dripping and preserved a protective surface during flame exposure. Residue analysis confirmed the formation of a stable char barrier layer. Additional analysis indicated that the improved flame resistance mainly resulted from surface shielding and antidripping effects rather than bulk heat release suppression. These results demonstrate that ANF coating can grant superior flame retardancy and antidripping properties compared with ANF blending, even at a very low weight fraction.
