Synthesis of a carbon nanotubes/ZnAl‐layered double hydroxide composite as a novel flame retardant for flexible polyurethane foams | Zendy

Xie Hongyan | Zendy; Ye Qing | Zendy; Si Jingyu | Zendy; Yang Wei | Zendy; Lu Hongdian | Zendy; Zhang Quanzheng | Zendy

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Synthesis of a carbon nanotubes/ZnAl‐layered double hydroxide composite as a novel flame retardant for flexible polyurethane foams

Author(s) -

Xie Hongyan,

Ye Qing,

Si Jingyu,

Yang Wei,

Lu Hongdian,

Zhang Quanzheng

Publication year - 2016

Publication title -

polymers for advanced technologies

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.61

H-Index - 90

eISSN - 1099-1581

pISSN - 1042-7147

DOI - 10.1002/pat.3735

Subject(s) - materials science , fire retardant , polyurethane , composite number , flammability , composite material , thermal stability , hydroxide , carbon nanotube , char , chemical engineering , pyrolysis , engineering

A composite consisting of carbon nanotubes and zinc aluminum‐layered double hydroxide (CNT/ZnAl‐LDH) with good solubility in liquid media was synthesized by a co‐precipitation method. The structural characterization and morphological observation demonstrated that the composite displayed a heterostructure with CNTs embedded in ZnAl‐LDH nanosheets. The influence of CNT/ZnAl‐LDH on the thermal stability and flammability performance of flexible polyurethane (PU) foams was characterized. It was established that CNT/ZnAl‐LDH could improve the thermal stability while reduce the peak heat release rate as well as the total smoke release of PU foams. The formation of a protective char with increased mechanical properties and high graphitization degree was mostly postulated for the improved flame retardancy. Copyright © 2015 John Wiley & Sons, Ltd.

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