Polypropylene/clay nanocomposites prepared by in situ grafting–melt intercalation with a novel co-intercalating monomer
Article
Article Title | Polypropylene/clay nanocomposites prepared by in situ grafting–melt intercalation with a novel co-intercalating monomer |
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ERA Journal ID | 1671 |
Article Category | Article |
Authors | Song, Pingan (Author), Tong, Lifang (Author) and Fang, Zhengping (Author) |
Journal Title | Journal of Applied Polymer Science |
Journal Citation | 110 (1), pp. 616-623 |
Number of Pages | 8 |
Year | 2008 |
Publisher | John Wiley & Sons |
Place of Publication | United States |
ISSN | 0021-8995 |
1097-4628 | |
Digital Object Identifier (DOI) | https://doi.org/10.1002/app.28689 |
Web Address (URL) | https://onlinelibrary.wiley.com/doi/full/10.1002/app.28689 |
Abstract | Polypropylene (PP)/clay nanocomposites were prepared by melt-compounding PP with organomontmorillonite (PMT), using maleic anhydride grafted polypropylene (PP-g-MA) as the primary compatibilizer and N-imidazol-O-(bicyclo pentaerythritol phosphate)-O-(ethyl methacrylate) phosphate (PEBI) as the cointercalating monomer. X-ray diffraction patterns indicated that the larger interlayer spacing of PMT in PP was obtained due to the cointercalation monomer having a large steric volume and the d-spacing further increased with the addition of PP-g-MA, as evidenced by transmission electron microscopy. Thermogravimetric analysis revealed that the PEBI-containing PP nanocomposites exhibited better thermal stability than PEBI-free PP composites. Dynamic mechanical analysis demonstrated that the storage modulus was significantly enhanced, and the glass transition temperature (Tg) shifted slightly to low temperature with the incorporation of clay for PP/PMT hybrids. PEBI-containing PP/PMT composites gave a lower Tg value because of the strong internal plasticization effect of PEBI in the system. Cone calorimetry showed that the flame-retardancy properties of PP nano-composites were highly improved with the incorporation of PEBI. |
Keywords | polypropylene, nanostructure, thermal properties, flame retardant |
Contains Sensitive Content | Does not contain sensitive content |
ANZSRC Field of Research 2020 | 401699. Materials engineering not elsewhere classified |
Public Notes | Files associated with this item cannot be displayed due to copyright restrictions. |
Byline Affiliations | Zhejiang A & F University, China |
Zhejiang University, China | |
Institution of Origin | University of Southern Queensland |
https://research.usq.edu.au/item/q50xx/polypropylene-clay-nanocomposites-prepared-by-in-situ-grafting-melt-intercalation-with-a-novel-co-intercalating-monomer
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