Facile preparation of layered melamine-phytate flame retardant via supramolecular self-assembly technology

Sheng Shang; Bihe Yuan; Yaru Sun; Gongqing Chen; Chuyuan Huang; Bin Yu; Song He; Huaming Dai; Xianfeng Chen

doi:10.1016/j.jcis.2019.06.015

Facile preparation of layered melamine-phytate flame retardant via supramolecular self-assembly technology

J Colloid Interface Sci. 2019 Oct 1:553:364-371. doi: 10.1016/j.jcis.2019.06.015. Epub 2019 Jun 8.

Authors

Sheng Shang¹, Bihe Yuan², Yaru Sun¹, Gongqing Chen¹, Chuyuan Huang¹, Bin Yu³, Song He¹, Huaming Dai¹, Xianfeng Chen⁴

Affiliations

¹ School of Safety Science and Emergency Management, Wuhan University of Technology, Wuhan 430070, China.
² School of Safety Science and Emergency Management, Wuhan University of Technology, Wuhan 430070, China. Electronic address: yuanbh@whut.edu.cn.
³ Centre for Future Materials, University of Southern Queensland, Toowoomba, QLD 4350, Australia.
⁴ School of Safety Science and Emergency Management, Wuhan University of Technology, Wuhan 430070, China. Electronic address: cxf618@whut.edu.cn.

PMID: 31220710
DOI: 10.1016/j.jcis.2019.06.015

Abstract

Melamine-phytate (MEL-PA) nanoflakes are formed by supramolecular self-assembly technology using melamine (MEL) and bio-based phytic acid (PA) as the building blocks. This work explores the possibility of this two-dimensional nanomaterial as flame retardant. The layered MEL-PA with the loading of 1, 2 and 3 wt% are incorporated into polypropylene (PP) matrix. MEL-PA is dispersed well in the PP matrix. Thermal stability and flame retardant performance of PP/MEL-PA composites are investigated. Compared with neat PP, the addition of 2 wt% MEL-PA decreases the peak heat release rate from 756 to 608 kW/m². Char yield of PP is improved by MEL-PA, and the chemical structure and graphitization degree of residual char are studied to reveal flame retardant mechanism.

Keywords: Fire retardancy; Supramolecular self-assembly; Thermal analysis.