ICCAS OpenIR
Mechanism on flame retardancy of polystyrene/clay composites-The effect of surfactants and aggregate state of organoclay
Wang, Zhe1,2; Du, Xiaohua1,2; Yu, Haiou1,2; Jiang, Zhiwei1; Liu, Jie1; Tang, Tao1
2009-11-16
Source PublicationPOLYMER
ISSN0032-3861
Volume50Issue:24Pages:5794-5802
AbstractEffects of organically modified montmorillonites (OMMTs) with different type and amount of modifiers on flame retardancy of polystyrene (PS) have been studied. The results from morphology analysis, gas chromatography-mass spectrometry and cone calorimeter have showed different mechanisms for the flame retardancy of PS/OMMTs composites, depending on surface property of OMNTrs. One is the catalysis of acid sites formed on the surface of octadecylammonium modified MMT (c-MMT) via Hoffman decomposition on the carbonization of degradation products, which promotes the formation of clay-enriched char barrier. The other is related to chemical effect of inherent properties of MMT sheets on reactive intermediates during combustion, which work in PS/Na-MMT and PS/sodium dodecylsulfonate modified MMT (a-MMT) composites. Furthermore, the effect of the aggregate states of a-MMT on the flame retardancy of PS/a-MMT composites was studied. In the case of a-MMTs from spraying drying, a good protective layer with foam-like aggregate state of MMT sheet was formed in the residue, which results in low peak value of heat release rate of PS/a-MMT composites. (C) 2009 Elsevier Ltd. All rights reserved.
KeywordClay Flame Retardancy Polystyrene
DOI10.1016/j.polymer.2009.09.077
Indexed BySCI
Language英语
WOS IDWOS:000272124900025
PublisherELSEVIER SCI LTD
Citation statistics
Cited Times:37[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.iccas.ac.cn/handle/121111/67268
Collection中国科学院化学研究所
Corresponding AuthorTang, Tao
Affiliation1.Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Polymer Phys & Chem, Changchun 130022, Peoples R China
2.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China
Recommended Citation
GB/T 7714
Wang, Zhe,Du, Xiaohua,Yu, Haiou,et al. Mechanism on flame retardancy of polystyrene/clay composites-The effect of surfactants and aggregate state of organoclay[J]. POLYMER,2009,50(24):5794-5802.
APA Wang, Zhe,Du, Xiaohua,Yu, Haiou,Jiang, Zhiwei,Liu, Jie,&Tang, Tao.(2009).Mechanism on flame retardancy of polystyrene/clay composites-The effect of surfactants and aggregate state of organoclay.POLYMER,50(24),5794-5802.
MLA Wang, Zhe,et al."Mechanism on flame retardancy of polystyrene/clay composites-The effect of surfactants and aggregate state of organoclay".POLYMER 50.24(2009):5794-5802.
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