通过超分子自组装技术简便制备层状三聚氰胺植酸盐阻燃剂。

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

作者信息

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

机构信息

School of Safety Science and Emergency Management, Wuhan University of Technology, Wuhan 430070, China.

出版信息

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

DOI:10.1016/j.jcis.2019.06.015

PMID:31220710

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/m. 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.

摘要

三聚氰胺-植酸盐（MEL-PA）纳米片是通过超分子自组装技术，以三聚氰胺（MEL）和生物基植酸（PA）为构建单元形成的。本工作探索了这种二维纳米材料作为阻燃剂的可能性。将负载量为1%、2%和3%的层状MEL-PA掺入聚丙烯（PP）基体中。MEL-PA在PP基体中分散良好。研究了PP/MEL-PA复合材料的热稳定性和阻燃性能。与纯PP相比，添加2%的MEL-PA可使峰值热释放速率从756降至608kW/m。MEL-PA提高了PP的残炭率，并对残余炭的化学结构和石墨化程度进行了研究以揭示阻燃机理。