Synergistic effect of Fe-modified organoclay on intumescent flame-retardant LDPE system
Recently, polymer nanocomposites emerged as one of the most promising developments in the area of flame retardancy, appearing to offer significant advantages over conventional formulations, especially polymerlayered silicate nanocomposites.111 In this paper, we modified OMMT with Fe3+, which could penetrate into the gallery of organoclay.21 Due to the properties of Fe3+, such as promoting the crosslinking reaction of the matrices, and capturing radicals during combustion, Fe-modified MMT exhibits a better synergistic effect compared with that of normal organoclay.131 Then the Fe-MMT/IFR/LDPE nanocomposites were melt blended using a counterrotation twin screw extruder. IFR is composed of a charring agent and ammonium polyphosphate (APP) at a suitable ratio. We explored the best mass ratio and adding amount of Fe-MMT. Limiting the oxygen index (LOI) and UL-94 tests have been carried out to estimate the fire-related properties of FeMMT/IFR/LDPE system.
LDPE Synergistic agent Fe-modified MMT
Jing Zhao Cheng-Liang Deng Qiang Lv Ying-Jun Xu Li Chen Yu-Zhong Wang
Center for Degradable and Flame-Retardant Polymeric Materials, College of Chemistry, State Key Laboratory of Polymer Materials Engineering, National Engineering Laboratory of Eco-Friendly Polymeric Materials (Sichuan), Sichuan University, Chengdu 610064, China
国际会议
成都
英文
85-88
2012-09-17（万方平台首次上网日期，不代表论文的发表时间）