The Thermal and Mechanical Properties of Ultra-High Molecular Weight Polyethylene/Montmorillonite （UHMWPE/MMT） Nanocomposites Hybrid Gel Using Pressure-Induced Flow （PIF） Processing
Hybrid organic-inorganic polymer nanocomposites incorporating organically modified montmorillonite （MMT） and ultra-high molecular weight polyethylene （UHMWPE） were examined. UHMWPE/MMT hybrid nanocomposites were prepared using gel and pressure-induced flow （PIF） processing methods at a gel weight co...
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| Published in | 东华大学学报：英文版 Vol. 28; no. 2; pp. 158 - 164 |
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| Main Author | |
| Format | Journal Article |
| Language | English |
| Published |
2011
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| Online Access | Get full text |
| ISSN | 1672-5220 |
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| Summary: | Hybrid organic-inorganic polymer nanocomposites incorporating organically modified montmorillonite （MMT） and ultra-high molecular weight polyethylene （UHMWPE） were examined. UHMWPE/MMT hybrid nanocomposites were prepared using gel and pressure-induced flow （PIF） processing methods at a gel weight concentration of 8 % UHMWPE with various organoclay contents （0, 0.4, 0.8, 1.2, and 1. 6 parts per hundred parts）. The interlayer properties of the nanocomposites were studied by transmission electron microscopy （TEM） and scanning electron microscopy （SEM）. The thermal and mechanical interfacial properties of the nanocomposites were investigated through thermogravimetric analysis （ TGA ）, differential scanning calorimetry （DSC）, dynamic mechanical analysis （DMA）, and the use of a universal test machine （ UTM）. TEM indicates that the nanocomposites are formed upon dispersion of MMT in the polymer matrix. From the DSC, TGA, and DMA results, we find that the thermal stability of the UHMWPE nanocomposites increases as the MMT content increases. The nanocomposites show higher tensile strengths than pure UHMWPE gel sheet. These findings indicate that the interfacial and mechanical properties are improved by the addition of MMT and PIF processing. |
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| Bibliography: | UHMWPE/MMT clay nanocomposites ; gel processing; pressure-induced flow （ PIF ） processing; mechanical and thermal properties Hybrid organic-inorganic polymer nanocomposites incorporating organically modified montmorillonite （MMT） and ultra-high molecular weight polyethylene （UHMWPE） were examined. UHMWPE/MMT hybrid nanocomposites were prepared using gel and pressure-induced flow （PIF） processing methods at a gel weight concentration of 8 % UHMWPE with various organoclay contents （0, 0.4, 0.8, 1.2, and 1. 6 parts per hundred parts）. The interlayer properties of the nanocomposites were studied by transmission electron microscopy （TEM） and scanning electron microscopy （SEM）. The thermal and mechanical interfacial properties of the nanocomposites were investigated through thermogravimetric analysis （ TGA ）, differential scanning calorimetry （DSC）, dynamic mechanical analysis （DMA）, and the use of a universal test machine （ UTM）. TEM indicates that the nanocomposites are formed upon dispersion of MMT in the polymer matrix. From the DSC, TGA, and DMA results, we find that the thermal stability of the UHMWPE nanocomposites increases as the MMT content increases. The nanocomposites show higher tensile strengths than pure UHMWPE gel sheet. These findings indicate that the interfacial and mechanical properties are improved by the addition of MMT and PIF processing. 31-1920/N BABIKER Musa E, ZHANG Sen , FENG Xiao-ling , WANG Guang-cheng , TANG Yi-fei, YU Mu-huo State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Material Science and Engineering, Donghua University, Shanghai 201620, China |
| ISSN: | 1672-5220 |