Copolymer of natural fibre reinforced polyester urethane: effect on physico-chemical properties through modification to interfacial adhesion
| Autor: | Adriana Kovalcik, Alena Pavelkova, Norbert Miskolczi, Vladimir Sedlarik, Gabriela Jandikova, Pavel Kucharczyk |
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| Rok vydání: | 2015 |
| Předmět: |
Materials science
Polymers and Plastics Polymer science General Chemical Engineering Interfacial adhesion 02 engineering and technology 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences 0104 chemical sciences Polyester Materials Chemistry Copolymer Christian ministry Composite material 0210 nano-technology |
| Zdroj: | Journal of Polymer Engineering. 36:189-197 |
| ISSN: | 2191-0340 0334-6447 |
| DOI: | 10.1515/polyeng-2015-0077 |
| Popis: | This work is dedicated to polyester urethane (PEU)-based biocomposites, with special focus placed on techniques for compatibilisation to heighten interfacial adhesion between the PEU matrix and flax fibres. Tests were conducted on the effects of modification so as to increase interfacial adhesion between the flax fibres and the polyester matrix. These tests involved a commercial silane-based compatibilising additive, two experimentally synthesised agents, oleic acid (OA) and di-tert-butyl peroxide (DTBP). Furthermore, the flax fibres underwent acid or alkali treatment. The biocomposites were characterised by gel permeation chromatography, infrared spectroscopy, differential scanning calorimetry (DSC), thermogravimetric analysis (TGA) and scanning electron microscopy (SEM). Mechanical properties were investigated through tensile testing. Biocomposites with a commercial silane-based additive and synthesised agent, based on maleic-anhydride, were assessed as the best solution. Nevertheless, all modifications, excluding alkali treatment of fibres, significantly increased the performance of the material. |
| Databáze: | OpenAIRE |
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