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Study and characterization of composites materials based on polypropylene loaded with olive husk flour

机译：聚丙烯与橄榄壳粉复合材料的研究与表征

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In Algeria, a significant quantities of olive husk are rejected to nature causing by the way major nuisances to environment, to give us a reason for which our work is focused on the valorization of this waste by its incorporation in a polypropylene matrix. The hydrophilic nature of natural fibers affects negatively its adhesion to hydrophobic polymeric matrix. To improve interfacial adhesion, two modes of chemical treatments were done using vinyltriacetoxysilane (VTAS) and maleic-anhydride-polypropylene (PPMA) compatibilisant agent. Several formulations of PP filled with 10 and 20% by mass of olive husk flour treated (OHFT) and untreated (OHFUT) were prepared. The chemical modification of olive husk flour was studied by Fourier transform infrared (FTIR) spectroscopy. The tensile properties, the water-absorption behavior, the thermal degradation properties, and crystallinity of the composites were investigated. It was found that, the incorporation of the treated and untreated OHF improves the thermal stability of the composites. However, the use of the compatibilizer agent PPMA leads to a better thermal stability compared with the treatment of the OHF by the VTAS and the OHFUT.
机译：在阿尔及利亚，由于对环境的重大滋扰而导致大量的橄榄果皮被自然界所拒绝，这为我们提供了一个工作理由，即我们的工作重点是通过将其掺入聚丙烯基质中来对这种废弃物进行增值。天然纤维的亲水性会对它对疏水性聚合物基质的粘附性产生负面影响。为了提高界面粘合力，使用乙烯基三乙酰氧基硅烷（VTAS）和顺丁烯二酸酐聚丙烯（PPMA）增容剂进行了两种化学处理方式。制备填充有按质量计10％和按质量计20％的橄榄皮粉（OHFT）和未经处理（OHFUT）的几种PP配方。用傅立叶变换红外光谱（FTIR）研究了橄榄皮粉的化学改性。研究了复合材料的拉伸性能，吸水性能，热降解性能和结晶度。已经发现，处理和未处理的OHF的结合改善了复合材料的热稳定性。但是，与通过VTAS和OHFUT处理OHF相比，使用增容剂PPMA可获得更好的热稳定性。

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