Investigation of Mechanical Properties of PP/Clay Nanocomposites Based on Network Cross-Linked Compatibilizers
Nanocomposites of polypropylene with organically modified clay were obtained on a corotating extruder. The modification of clay was done by swelling with a polyetherdiamine which undergoes cross-linking reaction with maleated polypropylene. The effect of clay concentration and of thermal treatment w...
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| Published in: | Industrial & engineering chemistry research Vol. 52; no. 10; pp. 3773 - 3778 |
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| Main Authors: | , , , , , |
| Format: | Journal Article |
| Language: | English |
| Published: |
American Chemical Society
13-03-2013
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| Subjects: | |
| Online Access: | Get full text |
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| Summary: | Nanocomposites of polypropylene with organically modified clay were obtained on a corotating extruder. The modification of clay was done by swelling with a polyetherdiamine which undergoes cross-linking reaction with maleated polypropylene. The effect of clay concentration and of thermal treatment was studied from a morphological and mechanical point of view. The structure was analyzed by X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), differential scanning calorimetry (DSC) and dynamic-mechanical thermal analyses (DMTA). Nanocomposites with 1 and 2 wt- % silicate concentration presented improvement in mechanical properties. The improvements observed were: 20% increase in tensile strength, 21% increase in Young modulus, 34% reduction in creep strain and 30% decrease in tensile strain after cyclic loading, meaning improved fatigue. |
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| Bibliography: | ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23 |
| ISSN: | 0888-5885 1520-5045 |
| DOI: | 10.1021/ie302992q |