回收聚烯烃的高级表征:研究其微观结构和污染的整体方法

IF 4.1 2区 化学 Q2 POLYMER SCIENCE
Davide Tranchida, Dietmar Salaberger, Lada Vukusic, Gerhard Hubner, Mithun Goswami, Andreas Albrecht, Susana Filipe
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引用次数: 0

摘要

由于存在有机和无机污染,获得回收材料组成的详细知识是一项艰巨的任务。此外,微观结构的复杂性远远优于生产过程控制良好的原始材料。尽管如此,这项任务是至关重要的,因为属性在关键方面受到影响。在这项工作中,我们用几种技术研究了再生聚烯烃等级,特别是通过它们适应这类材料的分析,结合信息并获得其特性的详细知识。利用热重分析(TGA)、x射线荧光(XRF)、x射线计算机断层扫描(CT)和扫描电子显微镜(SEM)对无机污染物进行表征。利用CT和傅里叶变换红外光谱(FTIR)对有机污染物进行了表征。通过核磁共振(NMR)、分馏和热分析方法对其微观结构细节进行了评价。此外,还讨论了各种技术的局限性。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Advanced characterization of recycled polyolefins: a holistic approach to study their microstructure and contaminations

Advanced characterization of recycled polyolefins: a holistic approach to study their microstructure and contaminations
Achieving the detailed knowledge of recycled materials composition is a formidable task due to the presence of organic and inorganic contaminations. Additionally, the complexity of the microstructure is far superior to the one of virgin materials where the production process is well controlled. Nonetheless, this task is of paramount importance because properties are affected in crucial ways. In this work we studied recycled polyolefin grades with several techniques, in particular through their adaptation to the analysis of this class of materials, to combine the information and obtain a detailed knowledge of their characteristics. Thermogravimetric Analysis (TGA), X-Ray Fluorescence (XRF), X-Ray Computed Tomography (CT) and Scanning Electron Microscopy (SEM) were used to characterize inorganic contaminations. CT and Fourier Transform Infrared Spectroscopy (FTIR) were used to characterize organic contaminations. Microstructure details were evaluated by Nuclear Magnetic Resonance (NMR) and fractionation and thermal analysis methods. Also the limitations of the various techniques are addressed.
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来源期刊
Polymer
Polymer 化学-高分子科学
CiteScore
7.90
自引率
8.70%
发文量
959
审稿时长
32 days
期刊介绍: Polymer is an interdisciplinary journal dedicated to publishing innovative and significant advances in Polymer Physics, Chemistry and Technology. We welcome submissions on polymer hybrids, nanocomposites, characterisation and self-assembly. Polymer also publishes work on the technological application of polymers in energy and optoelectronics. The main scope is covered but not limited to the following core areas: Polymer Materials Nanocomposites and hybrid nanomaterials Polymer blends, films, fibres, networks and porous materials Physical Characterization Characterisation, modelling and simulation* of molecular and materials properties in bulk, solution, and thin films Polymer Engineering Advanced multiscale processing methods Polymer Synthesis, Modification and Self-assembly Including designer polymer architectures, mechanisms and kinetics, and supramolecular polymerization Technological Applications Polymers for energy generation and storage Polymer membranes for separation technology Polymers for opto- and microelectronics.
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