Preparation of APP@CNCSi-DA and its application in intumescent flame retardant polypropylene.

ABSTRACT: A Silicon-containing Oligomeric Charring Agent (CNCSi-DA) containing triazine rings and silicon was designed, synthesized and characterized. CNCSi-DA was chosen as macromolecular coating agent to modify Ammonium Polyphosphate (APP) to be core-shell coating-mixture (APP@CNCSi-DA). The synergistic effects of APP@CNCSi-DA on hydrophobicity, mechanical and flame retardant properties, and mechanism of flame-retardant polypropylene (PP) were studied. It was obvious that when the mass ration of APP to CNCSi-DA in APP@CNCSi-DA ranged from 15:15 to 0:30, the water contact angle meter (WCA) value of PP composites were higher than 90°. The CNCSi-DA reinforced the compatibility and improved the flexible and impact strength. APP@CNCSi-DA was highly effective in enhancing the flame retardancy of PP. Whe

SUBMITTER: Liang M 

PROVIDER: S-EPMC11755028 | biostudies-literature | 2025 Jan

REPOSITORIES: biostudies-literature