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Impact Modification of Polyamide 11 by the Reactive Blending with Epoxy Group Modified Polyethylene

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Polyamide 11 (PA11) and epoxy group modified polyethylene (EGMA) were melt-blended in a segment mixer at 230 °C. The reactive nature of the blend is reflected in the mixing torque behavior of the blend at different compositions. The dynamic mechanical analysis reveals shifted glass transition temperatures for both PA11 and EGMA, indicating the improved miscibility by the reactive blending. Transmission electron microscopy (TEM) shows that EGMA is precisely dispersed in PA11 matrix with the domain size of several hundred nanometers for the reactive blends. The mechanical properties were also measured for the obtained material and it exhibits greatly improved impact strength as compared with the neat PA11. In addition, the toughening mechanism for the blend system was also studied.
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Keywords: MORPHOLOGY; POLYAMIDE 11; REACTIVE BLENDING; TOUGHENING

Document Type: Research Article

Publication date: 2006-12-01

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  • Journal for Nanoscience and Nanotechnology (JNN) is an international and multidisciplinary peer-reviewed journal with a wide-ranging coverage, consolidating research activities in all areas of nanoscience and nanotechnology into a single and unique reference source. JNN is the first cross-disciplinary journal to publish original full research articles, rapid communications of important new scientific and technological findings, timely state-of-the-art reviews with author's photo and short biography, and current research news encompassing the fundamental and applied research in all disciplines of science, engineering and medicine.
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