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Adsorption of natural dyes on clay fixed on polymers

机译:天然染料在固定在聚合物上的粘土上的吸附

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The main purpose of this work was to produce a pellet to minimize undesirable effects in fixed beds, such as colmatation, through clay fixation on the surface of polymeric particles. Preliminary experiments were carried out by heating the clay, namely Tonsil Terrana 580FF, in order to observe variations on its capacity to adsorb anthocyanins derived from red cabbage. Clays was fixed on five samples of high density polyethylene (HDPE) at 180°C -210°C for two hours. The morphological analyses of the resulting particles were accomplished through Scanning Electron Microscopy (SEM). The experiments demonstrated an increase on clay's adsorptive capacity of 15.65% at 120°C for 30 hours and 16.80% at 170°C for two hours. The SEM analysis showed that the clay particles adhered on the external surface of the pellets .These results show that it is possible to obtain polymeric pellets using HDPE coated with clay.
机译:这项工作的主要目的是生产一种颗粒,以通过将粘土固定在聚合物颗粒表面上来最大程度地减少固定床中的不良影响,例如准直作用。通过加热粘土,即Tonsil Terrana 580FF,进行了初步实验,以观察其吸附源自红甘蓝的花色苷的能力。将粘土在180°C -210°C的五个高密度聚乙烯(HDPE)样品上固定2小时。通过扫描电子显微镜(SEM)完成所得颗粒的形态分析。实验表明,粘土在120°C 30小时的吸附能力增加了15.65%,在170°C 2小时的吸附能力增加了16.80%。 SEM分析表明,粘土颗粒附着在颗粒的外表面上,这些结果表明,使用涂有粘土的HDPE可以获得聚合物颗粒。

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