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Investigation of degradation of polypropylene in soil using an enzymatic additive
Iranian Polymer Journal ( IF 3.1 ) Pub Date : 2019-11-06 , DOI: 10.1007/s13726-019-00766-8
Jéssica Pereira Pires , Gabriela Messias Miranda , Gabriela Lagranha de Souza , Flávia Fraga , Alessandro da Silva Ramos , Gabriel Espindola de Araújo , Rosane Angélica Ligabue , Carla Maria Nunes Azevedo , Rogerio Vescia Lourega , Jeane Estela Ayres de Lima

Polypropylene (PP) has been widely used industrially in several sectors, mainly in the use of packaging of different products. Thus, this has been accumulated in our environment due to the incorrect disposal and its high resistance toward degradation, causing an array of environmental impacts. With this, one alternative that has been explored to minimize the problems intensified by these residues is the use of pro-degrading additives. Therefore, the aim of this work is to evaluate the degradation process of PP blends in soil using enzymatic additive. The soil degradation experiment was done for 6 months; monthly collected samples were checked for alterations on the material properties during that time. The extent of PP degradation with enzymatic additive was compared to an organic additive by techniques of FTIR, TGA, DSC, carbonyl index (CI), and crystallinity. From the obtained results it was observed that the additives influenced the degradation of PP. In addition, the enzymatic additive caused more significant changes in the CI (increase of 3693%), crystallinity (variation of 18.7%), and structural characteristics, indicating a greater influence on the degradation process in relation to the organic additive. In this way, this work has had an important role in the research and development of biodegradable materials with the aim of minimizing the effects induced by plastic waste in the environment.

中文翻译:

使用酶促添加剂研究聚丙烯在土壤中的降解

聚丙烯(PP)在工业上已广泛用于多个领域,主要用于包装不同产品。因此,由于处理不当及其对降解的高抵抗力,这已经在我们的环境中积累,从而造成一系列环境影响。因此,已探索出一种使这些残留物加剧的问题最小化的替代方法是使用助降解添加剂。因此,这项工作的目的是评估使用酶促添加剂在土壤中PP共混物的降解过程。土壤降解试验进行了6个月;在此期间检查每月收集的样品的材料特性是否发生变化。通过FTIR,TGA,DSC,羰基指数(CI),和结晶度。从获得的结果可以看出,添加剂影响PP的降解。另外,酶促添加剂在CI(增加3693%),结晶度(变化18.7%)和结构特征方面引起了更显着的变化,表明相对于有机添加剂,其对降解过程的影响更大。这样,这项工作在可生物降解材料的研究和开发中起着重要作用,目的是最大程度地减少塑料废物在环境中引起的影响。相对于有机添加剂,它对降解过程的影响更大。这样,这项工作在可生物降解材料的研究和开发中起着重要作用,目的是最大程度地减少塑料废物在环境中引起的影响。表明相对于有机添加剂,其对降解过程的影响更大。这样,这项工作在可生物降解材料的研究和开发中起着重要作用,目的是最大程度地减少塑料废物在环境中引起的影响。
更新日期:2019-11-06
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