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首页> 外文期刊>Journal of Polymers and the Environment >Composites of Recycled Polypropylene from Cotton Swab Waste with Pyrolyzed Rice Husk
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Composites of Recycled Polypropylene from Cotton Swab Waste with Pyrolyzed Rice Husk

机译：热解米壳的棉签废弃物中再生聚丙烯的复合材料

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摘要

The manufacture of consumer goods from thermoplastic polymers leads to a considerable amount of scrap or off-specifications products, generating post-industrial waste that is typically landfilled. In present study, polypropylene (PP) wastes from the cotton swabs manufacture were used to the preparation of polymeric composites with agro-industrial waste of rice husk (RH). The RH was employed in the natural form as well as it was also treated by controlled pyrolysis for surface modification before incorporation to the PP. The PP/RH composites prepared by extrusion with contents from 2 to 20 wt% of non-pyrolyzed (NRH) and pyrolyzed (PRH) rice husk were submitted to the injection molding for preparation of tensile and impact specimens and characterized by mechanical testing, thermal analysis, melt flow rate, infrared spectroscopy and scanning electron microscopy. The controlled pyrolysis treatment on the RH caused significant changes in the thermal, chemical, rheological and mechanical properties of the PP/RH composites, mainly on the mechanical properties Young's modulus, elongation at break and impact resistance that presented variation up to 100% when compared the composites containing NRH. The recycled PP/RH composites present suitable properties for several applications such as wood-plastic, furniture, doors and are an alternative for decrease the pollution generated by cotton swab waste.
机译：来自热塑性聚合物的消费品的制造导致相当大量的废料或非规格产品，产生通常填埋的后工业废物。在目前的研究中，来自棉拭子制造的聚丙烯（PP）废物用于制备聚合物复合材料，其具有稻壳（RH）的农业工业垃圾。在天然形式中使用RH以及它在掺入PP之前，还通过受控热解掺入表面改性。通过挤出的PP / RH复合材料，用2至20wt％的非热解（NRH）和热解（PRH）和热解（PRH）稻壳提交给注塑成型，用于制备拉伸和冲击样品，并通过机械测试来表征，热分析，熔体流速，红外光谱和扫描电子显微镜。 RH上的受控热解性处理PP / RH复合材料的热，化学，流变和力学性能显着变化，主要是在机械性能杨氏模量，断裂伸长率和抗冲击性比较时的变化较大100％含有NRH的复合材料。再循环的PP / RH复合材料对于诸如木塑，家具，门的若干应用，以及减少棉签废物产生的污染的替代方案。

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