Designing high-performance polypropylene <i>via</i> synergistic free radical scavenging-intumescent flame retardancy: excellent mechanical performance and flame retardancy.

ABSTRACT: Polypropylene (PP) faces application limitations due to its inherent flammability. Although halogen-free intumescent flame retardants (IFRs) are environmentally friendly, they often suffer from low flame-retardant efficiency, poor compatibility, and mechanical performance deterioration. Herein, based on a two-phase synergistic flame-retardant mechanism, a highly reactive flame-retardant synergist-1,3-bis(2-acrylamidoethylamino) propane (BAAEP) was designed, and combined with the IFR system including ammonium polyphosphate (APP) and triazine-based char-forming agent (CFA) to achieve synergistic flame retardancy in PP. The multiple active groups in BAAEP (amide groups, C[double bond, length as m-dash]C double bonds, and amino groups) catalyzed crosslinking and char formation in the PP matrix

SUBMITTER: Zhou XH 

PROVIDER: S-EPMC12451520 | biostudies-literature | 2025 Sep

REPOSITORIES: biostudies-literature