期刊
MATERIALS & DESIGN
卷 40, 期 -, 页码 528-535出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.matdes.2012.04.032
关键词
-
资金
- MASCIR
- Moroccan Foundation for Advanced Science, Innovation and Research
Pine cone fibers are a cellulosic material readily available and can be used as reinforcement in a thermoplastic-based composite. A solid knowledge of their fibrillar morphology and structure is required to evaluate their usefulness as a substitute to other abundant natural fibers. Pine cone fibers were alkali treated prior usage to remove waxes and non cellulosic surface component. Fiber-matrix adhesion was assured by both a styrene-(ethylene-butene)-styrene triblock copolymer grafted with maleic anhydride (SEBS-g-MA) and a linear block copolymer based on styrene and butadiene compatibilizer. Scanning Electron Microscopy (SEM), Fourier transform infrared spectroscopy (FT-IR), X-ray diffraction, Thermogravimetric analysis (TGA), tensile and torsional tests were employed for Pine cone polypropylene composite and compatibilized composite at different fiber content. Results show a clear improvement in mechanical properties from the use of both alkali treated Pine cone and Pine cone compatibilized with maleic anhydride, a gain of 43% and 49% respectively in the Young's modulus, as a results of improved adhesion between fibers and matrix at the interface. (C) 2012 Elsevier Ltd. All rights reserved.
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