期刊
POLYMER
卷 50, 期 15, 页码 3478-3487出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.polymer.2009.06.013
关键词
Nanocomposites; EVA; Flame retardancy
资金
- Cornell Center
- Scott Peterson of Texas AM
Exfoliated EVA/layered silicate nanocomposites were prepared by a masterbatch process using polymer-modified layered silicate instead of small molecule surfactant-modified clays. The nanocomposites exhibited improved mechanical properties and flame retardancy. Microscale flammability test showed that the heat release capacity (HRC) and total heat release (THR) were reduced by 21-24% and 16%, respectively. Radiant gasification studies revealed that the exfoliated EVA nanocomposites exhibited better improvements in flame retardant properties of EVA than did the corresponding intercalated nanocomposites. The peak mass loss rate of the exfoliated EVA nanocomposite containing about 5 wt% clay was reduced by 80% and the mass loss rate plot was spread over a much longer period of time. The mechanical and flammability tests revealed that the observed improvements in all the desirable properties were due to the presence of both the incorporated polymeric surfactant and the nanoclay. (C) 2009 Elsevier Ltd. All rights reserved.
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