Solid-state morphology,structure, and tensile properties of polyethylene/polyamide/nanoclay blends: Effect of clay fraction |
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| Institution: | 1. Center for Rubber Composite Materials and Structures, Harbin Institute of Technology, Weihai, 264209, China;2. Center for Composite Materials, Harbin Institute of Technology, 150001, China;3. Indian Institutes of Technology at Kanpur, 208016, India;1. Department of Physical Chemistry, University of Chemistry and Technology, Prague, Technická 5, 166 28 Prague 6, Czech Republic;2. Institute of Chemical Process Fundamentals, Academy of Sciences of the Czech Republic, Rozvojová 135, 165 02 Prague 6, Czech Republic;3. Institute on Membrane Technology, ITM-CNR, Via P. Bucci, Cubo 17/C, 87036 Rende, CS, Italy;4. Solvay Specialty Polymers, R&D Center, Bollate, MI, Italy;1. Politecnico di Milano, Piazza Leonardo da Vinci 32, 20133 Milan, Italy;2. Chem.Co Consultant, Via J.F.Kennedy 2, 45030 Occhiobello (RO), Italy |
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| Abstract: | The effect of nanoclay fraction on the linear and non-linear tensile properties of a polyethylene/polyamide 12 blend with droplet morphology was investigated. All ternary blends were prepared at a fixed polyamide (PA) weight fraction of 20%, and at clay volume fractions varying from 0.5 to 2.5% relative to PA. Scanning electron microscopy and transmission electron microscopy were used to characterize the morphology of the blends and the clay interphase structure. The nanoclay content was shown to strongly influence both linear and non-linear tensile properties. Young's modulus, elongation at yield, yield strength, tensile strength and elongation at break as a function of clay fraction were studied and discussed in terms of morphological changes and strain-induced structural reorganization of the clay interphase. |
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| Keywords: | Polyethylene/polyamide/nanoclay blends Morphology Clay-interphase structure Linear and non-linear tensile properties |
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