Development and Application of a Novel Aminoformate Phospholipid Derivative With Dual Function: Flame Retardancy and Formaldehyde Removal

ABSTRACT The experimental results showed that the limiting oxygen index (LOI) value of the THPON3‐THPC‐treated cotton fabric increased significantly (by up to 32.5%), and the length of damage in the vertical burning test was reduced to 8.1 cm with no afterflame. Cone calorimeter tests revealed a significant reduction in combustion efficiency, with the peak heat release rate (PHRR) decreasing from 283.1 to 112.9 kW/m 2 and the total heat release (THR) decreasing from 21.8 to 4.6 MJ/m 2 . Compared to the traditional Proban ammonia curing process, THPON3‐THPC demonstrated greater flame‐retardant effectiveness. This treatment improved both the comfort and environmental sustainability of the flame‐retardant cotton fabric. Furthermore, experimental results showed that THPON3 achieved formaldehyde removal rates of 92.5% (E2 grade) and 68.3% (NAF grade) from plywood, outperforming urea and demonstrating significant formaldehyde removal capabilities. As an efficient formaldehyde scavenger, THPON3 significantly inhibited and delayed the release of formaldehyde from plywood. Additionally, cytotoxicity tests showed that THPON3 exhibited no significant toxicity to Hacat and BEAS‐2B cells at a concentration of 800 μM, indicating a very low risk to human health in the event of accidental ingestion or inhalation. These findings are important for the application of THPON3 in flame‐retardant and residential building materials.