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STRUCTURAL EVOLUTION AND COMPOSITION CHANGE IN THE SURFACE REGION OF POLYPROPYLENE/CLAY NANOCOMPOSITES ANNEALED AT HIGH TEMPERATURES
Wang, Zhe1,2; Song, Rong-jun1,3; Du, Xiao-hua1,2; Meng, Xiao-yu1,2; Jiang, Zhi-wei1; Tang, Tao1
2009-11-01
Source PublicationCHINESE JOURNAL OF POLYMER SCIENCE
ISSN0256-7679
Volume27Issue:6Pages:879-888
AbstractA model experiment was done to clear the formation mechanism of protective layers during combustion of polypropylene (PP)/organically modified montmorillonite (OMMT) nanocomposites. The investigation was focused on the effects of annealing temperature on the structural changes and protective layer formation. The decomposition of OMMT and degradation of PP/OMMT nanocomposites were characterized by means of thermogravimetric analysis (TGA). The structural evolution and composition change in the surface region of PP/OMMT nanocomposites during heating were monitored by means of X-ray photoelectron spectroscopy (XPS), ATR-FTIR and field emission scanning electron microscopy (FESEM). The results showed that the formation of the carbonaceous silicate barrier in the surface region of PP/OMMT nanocomposites resulted from the following three processes: (1) The formation of strong acid sites on the MMT sheets, which could promote the degradation of PP and the carbonization of its degradation products; (2) The gases and gas bubbles formed by decomposition of the surfactant and degradation of PP, which pushed the molten sample to the surface; (3) The degradation of PP and the carbonization of the degradation products, which led to accumulation of MMT sheets tightly linked by the char in the surface region.
KeywordClay Fire Retardancy Polypropylene
DOI10.1142/S0256767909004618
Indexed BySCI
Language英语
WOS IDWOS:000271864400015
PublisherWORLD SCIENTIFIC PUBL CO PTE LTD
Citation statistics
Cited Times:3[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.iccas.ac.cn/handle/121111/66308
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
3.NE Forestry Univ, Coll Mat Sci & Technol, Harbin 150040, Peoples R China
Recommended Citation
GB/T 7714
Wang, Zhe,Song, Rong-jun,Du, Xiao-hua,et al. STRUCTURAL EVOLUTION AND COMPOSITION CHANGE IN THE SURFACE REGION OF POLYPROPYLENE/CLAY NANOCOMPOSITES ANNEALED AT HIGH TEMPERATURES[J]. CHINESE JOURNAL OF POLYMER SCIENCE,2009,27(6):879-888.
APA Wang, Zhe,Song, Rong-jun,Du, Xiao-hua,Meng, Xiao-yu,Jiang, Zhi-wei,&Tang, Tao.(2009).STRUCTURAL EVOLUTION AND COMPOSITION CHANGE IN THE SURFACE REGION OF POLYPROPYLENE/CLAY NANOCOMPOSITES ANNEALED AT HIGH TEMPERATURES.CHINESE JOURNAL OF POLYMER SCIENCE,27(6),879-888.
MLA Wang, Zhe,et al."STRUCTURAL EVOLUTION AND COMPOSITION CHANGE IN THE SURFACE REGION OF POLYPROPYLENE/CLAY NANOCOMPOSITES ANNEALED AT HIGH TEMPERATURES".CHINESE JOURNAL OF POLYMER SCIENCE 27.6(2009):879-888.
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