Synthesis of Polyphosphate Flame Retardant Bisphenol AP Bis(Diphenyl Phosphate) and Its Application in Polycarbonate/Acrylonitrile-Butadiene-Styrene

Yang Yang; Chunzhi Wang; Yong Guan; Dafu Wei; Xiang Xu

doi:10.3390/ma17235682

Synthesis of Polyphosphate Flame Retardant Bisphenol AP Bis(Diphenyl Phosphate) and Its Application in Polycarbonate/Acrylonitrile-Butadiene-Styrene

Materials (Basel). 2024 Nov 21;17(23):5682. doi: 10.3390/ma17235682.

Authors

Yang Yang¹, Chunzhi Wang¹, Yong Guan¹, Dafu Wei¹, Xiang Xu¹

Affiliation

¹ Shanghai Key Laboratory of Advanced Polymeric Materials, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200237, China.

Abstract

The flame retardant bisphenol AP bis(diphenyl phosphate) (BAPDP) is synthesized from triphenyl phosphate and bisphenol AP via transesterification, producing a polycarbonate/acrylonitrile-butadiene-styrene (PC/ABS) with a high flame retardancy and thermal stability. In this study, flame-retardant PC/ABS blends with various BAPDP contents are prepared, and their flame retardancy is studied using the limit oxygen index, vertical combustion, thermogravimetric analysis, and cone calorimeter testing. With a BAPDP content of 20 wt%, the product exhibits a limiting oxygen index of 25.4% and achieves the UL-94 V-0 grade, with a thermal deformation temperature of 72.6 °C. BAPDP improves the flame retardancy of the PC/ABS blends and exhibits fewer adverse effects on the thermal deformation temperature than other commercial flame retardants at the same concentration.

Keywords: acrylonitrile-butadiene-styrene; flame retardant; heat resistance; polycarbonate.

Grants and funding

This research received no external funding.