A 2D biobased P/N-containing aggregate for boosting fire retardancy of PA6/aluminum diethylphosphinate via synergy  

作　　者：Yixia Lu Jiabing Feng Tao Chu Siqi Huo Hongyan Xie Zhiguang Xu Hao Wang Pingan Song 

机构地区：[1]Centre for Future Materials,University of Southern Queensland,Springfield 4300,Australia [2]China-Australia Institute for Advanced Materials and Manufacturing,Jiaxing University,Jiaxing 314001,China [3]School of Agriculture and Environmental Science,University of Southern Queensland,Springfield,QLD 4300,Australia

出　　处：《Journal of Materials Science & Technology》2024年第31期73-82,共10页材料科学技术(英文版)

基　　金：supported by the Australian Research Council(Grant Nos.FT190100188,LP220100278,DP240102628,DP240102728).

摘　　要：Engineering polyamide 6(PA6)is preferred for its superior mechanical properties,yet the intrinsic flammability restricts its industrial applications.As one of the biomass phosphorus-containing chemicals,phytic acid(PA)is favorable for its high phosphorus content and aggregation ability,making it expected to enhance the fire retardancy of PA6.Herein,a melamine-phytate aggregate(MPA)is prepared by electrostatic interaction in aqueous solution,and applied as a synergist for aluminum diethylphosphinate(ADP)in PA6.The strong synergistic effect exists between ADP and MPA towards PA6,especially when their mass ratio is 3:1 and the total loading is 18 wt%.Compared to the neat PA6,this formula allows for remarkable decreases in peak heat release rate(PHRR),total heat release(THR),and maximum average heat release rate(MARHE)by∼48%,∼27%,and∼30%,respectively,as well as a high synergistic efficiency of∼43%in PHRR.This PA6 composite also presents a V-0 rating in the vertical burning(UL-94)test and a high limiting oxygen index(LOI)of 29.7%.This work offers an eco-friendly strategy for developing bio-based P/N fire-retardant aggregates for fabricating PA6 materials with high fire safety.

关 键 词：Melamine phytate aggregate Fire-retardant PA6 Synergism Aqueous reaction 

分 类 号：TQ3[化学工程]