Effect of microcapsulated red phosphorus on flame retardant, thermal and mechanical properties of thermoplastic polyurethane composites filled with huntite&hydromagnesite mineral

Date

2017-01-01

Author

ATABEK SAVAŞ, Lemiye
Deniz, Tugba Kaya
Tayfun, Umit
DOĞAN, Mehmet

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The effect of microcapsulated red phosphorus (mRP) was studied on the flame retardant, thermal and mechanical properties of thermoplastic polyurethane (TPU) composites containing Huntite&hydromagnesite (HH). The flame retardant properties of TPU based composites were investigated using limiting oxygen index (LOI), vertical burning test (UL 94), thermogravimetric analysis (TGA) and mass loss calorimeter. The mechanical properties of composites were studied using tensile test and dynamic mechanical analysis (DMA). According to the test results, the adjuvant effect of mRP was observed in terms of both flammability and mechanical properties of composites. The highest LOI value (32.5), the highest UL-94 rating (VO) and the lowest pHRR (155 kW/m(2)) value were observed with the partial substitution of 7 wt% mRP with HH. The tensile strength also increased at about 60% with respect to TPU/50HH. The mRP showed the synergistic effect by increasing the barrier effect of residue in the condensed phase and the formation of active radicals in the gas phase. The mRP showed adjuvant effect on mechanical properties due to the plasticizing and compatibilizer effect of low molecular weight epoxy resin carrier.

Subject Keywords

Thermoplastic polyurethane, Flame retardant, Huntite&hydromagnesite, Synergistic effect, Red phosphorus

URI

https://hdl.handle.net/11511/67795

Journal

POLYMER DEGRADATION AND STABILITY

DOI

https://doi.org/10.1016/j.polymdegradstab.2016.12.001

Collections

Department of Chemistry, Article

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Citation Formats

L. ATABEK SAVAŞ, T. K. Deniz, U. Tayfun, and M. DOĞAN, “Effect of microcapsulated red phosphorus on flame retardant, thermal and mechanical properties of thermoplastic polyurethane composites filled with huntite&hydromagnesite mineral,” POLYMER DEGRADATION AND STABILITY, pp. 121–129, 2017, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/67795.