Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
7061949 | Thermochimica Acta | 2018 | 32 Pages |
Abstract
A novel multiarm aluminum salt of pentaerythrityl ester of tetra(carboxyethylmethylphosphinic acid) (Alcpp) was synthesized and added into thermoplastic polyester elastomer (TPEE). Thermal analysis, evolved gas analysis (TGA-FTIR), flammability tests (LOI, UL94), microcombustion calorimeter (MCC) and chemical analyses of residues (SEM-EDX) were used. Alcpp provides TPEE with desired flame retardancy and anti-dripping property and shows a good compatibility with TPEE. TGA-FTIR and SEM-EDX analysis show that Alcpp can depress the heating release and promote the char forming and acts mainly in condensed phase. In addition, Alcpp combining with MPP achieves better fire-resistant performance than Alcpp alone. When total additives is kept 28â¯wt%, 25â¯wt% Alcpp combining 3â¯wt% MPP exhibits the optimum synergy by increasing char yield and depressing heat release and flammability. The reason for the synergy is due to a strong compact carbonaceous char resulting from reaction between Alcpp and MPP, which effectively prevent the dripping of the TPEE during combustion.
Keywords
Related Topics
Physical Sciences and Engineering
Chemical Engineering
Fluid Flow and Transfer Processes
Authors
Liyong Zou, Min Zhou, Jiyan Liu, Xueqing Liu, Jia Chen, Quan Hu, Sha Peng,