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首页> 外文期刊>Journal of Polymers and the Environment >Preparation and Determination of Antimicrobial Property of Cation-Exchanged Ecuadorian Natural Zeolite to be Used as Filler for Polyethylene and Polypropylene Matrices
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Preparation and Determination of Antimicrobial Property of Cation-Exchanged Ecuadorian Natural Zeolite to be Used as Filler for Polyethylene and Polypropylene Matrices

机译：阳离子交换厄瓜多尔天然沸石用作聚乙烯和聚丙烯基质填料的制备及抗菌性能的测定

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摘要

Zeolites are crystalline aluminosilicates with nanoporous structure, tasteless and non-toxic materials. In this study, silver ion-exchanged zeolite, which was prepared from the natural Ecuadorian zeolites was used as reinforcement material in low-density polyethylene (LDPE) and polypropylene (PP). Polymers were filled with 1, 2 and 3 wt% concentrations of natural zeolite (Z) and silver ion exchanged zeolite (ZA). Zeolites and composites were characterized by X-ray diffractometry, Fourier transform infrared spectroscopy, scanning electron microscope, thermogravimetric analysis and mechanical analysis techniques. Microbiological analysis of silver ion exchanged zeolite showed effective antibacterial property against Escherichia coli bacteria. PP/ZA composites showed better tensile strengths in all mixes comparing to pure PP. ZAPE2 and ZAPP1 showed the best mechanical properties among all the composites based on polyethylene and PP, respectively. The composites prepared are potential candidates to be used in food packaging, and ZA type zeolites can be used as filler for the preparation of various composites.
机译：沸石是具有纳米孔结构的结晶硅铝酸盐，无味且无毒。在这项研究中，由天然厄瓜多尔沸石制备的银离子交换沸石被用作低密度聚乙烯（LDPE）和聚丙烯（PP）的增强材料。聚合物中充满了1、2和3 wt％浓度的天然沸石（Z）和银离子交换沸石（ZA）。通过X射线衍射，傅里叶变换红外光谱，扫描电子显微镜，热重分析和机械分析技术对沸石和复合材料进行了表征。银离子交换沸石的微生物学分析显示对大肠杆菌具有有效的抗菌性能。与纯PP相比，PP / ZA复合材料在所有混合物中均显示出更好的拉伸强度。 ZAPE2和ZAPP1分别在所有基于聚乙烯和PP的复合材料中表现出最佳的机械性能。制备的复合材料是食品包装中的潜在候选材料，ZA型沸石可用作制备各种复合材料的填料。

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