Synergistic Effect of Layered Nanofillers in Intumescent Flame-Retardant EPDM: Montmorillonite versus Layered Double Hydroxides

被引：69

作者：

Shen, Zhen-Qi ^{[1
]}

Chen, Li ^{[1
]}

Lin, Ling ^{[1
]}

Deng, Cheng-Liang ^{[1
]}

Zhao, Jing ^{[1
]}

Wang, Yu-Zhong ^{[1
]}

机构：

[1] Sichuan Univ, Ctr Degradable & Flame Retardant Polymer Mat, Natl Engn Lab Ecofriendly Polymer Mat Sichuan, Coll Chem,State Key Lab Polymer Mat Engn, Chengdu 610064, Peoples R China

来源：

INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH | 2013年 / 52卷 / 25期

基金：

中国国家自然科学基金;

关键词：

CARBON NANOTUBES; NANOCOMPOSITES; FLAMMABILITY; POLYETHYLENE; MECHANISM; SYSTEM; AGENT;

D O I：

10.1021/ie4010546

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

In this work, flame-retardant ethylene propylene diene terpolymer (EPDM) composites were prepared by incorporating intumescent flame-retardant (IFR) together with two different organically modified layered nanoparticles: montmorillonite (OMMT) and layered double hydroxides (OLDH). The morphology, fire behavior, thermal stability, flame-retardant synergism, and mechanical properties of the flame-retardant EPDM nanocomposites were studied. The introduction of a certain amount of OMMT (or OLDH) in the intumescent flame-retardant EPDM led to the considerable enhancement of flame retardance, thermal stability, and mechanical properties. Especially, the EPDM-IFR30-OLDH2. composite (100 phr EPDM, 30 phr IFR, and 2 phr OLDH) presented the highest tensile strength and could pass a UL-94 test V-0 rating; while the EPDM-IFR30-OMMT2 composite (100 phr EPDM, 30 phr IFR, and 2 phr OMMT)showed the lowest peak heat release rate (pHRR) and total heat release (THR) values. Different flame-retardant performances should be attributed to their own characteristics, dispersion state in EPDM matrix, and the change of structure during burning. The flame-retardant mechanisms for the composites were proposed to be condensed phase activity:

引用

页码：8454 / 8463

页数：10

共 48 条

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