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首页> 外文期刊>Journal of Polymers and the Environment >Thermo-Chemical Decomposition Study of Polyurethane Elastomer Through Glycerolysis Route with Using Crude and Refined Glycerine as a Transesterification Agent
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Thermo-Chemical Decomposition Study of Polyurethane Elastomer Through Glycerolysis Route with Using Crude and Refined Glycerine as a Transesterification Agent

机译：以粗制甘油和精制甘油为酯交换剂的甘油水解途径对聚氨酯弹性体进行热化学分解研究

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摘要

Due to the increasing amount of polyurethane waste, chemical recycling of these materials is a topic of growing interest for many researchers. The primary purpose of polyurethane feedstock recycling is to recover the starting polyol. In this study glycerolysis using glycerine from two sources and two purity grades is proposed as a method of chemical recycling. The main effort of this paper focuses on the employment of commercial glycerine of analytical grade and waste glycerine without purification derived from the biodiesel production, as a decomposing agent for polyurethane recycling. In this study, the influence of polyurethane to glycerine mass ratio (PU/GL) and the type of decomposing agent on the chemical structure by FTIR, H-1 NMR and GPC was examined. FTIR analysis of the glycerolysates showed absorption peaks similar to the virgin polyol. Those results are in compliance with GPC chromatograms, which showed for all samples, well-defined peak at ca. 13 min of retention time. The molecular weight of glycerolysates was ranging from 800 to 1300 g mol(-1) depending on PU/GL mass ratio. The novel decomposition agent, namely waste glycerine derived from biodiesel production was successfully used in glycerolysis process.
机译：由于聚氨酯废料数量的增加，这些材料的化学循环利用已成为许多研究人员日益关注的话题。聚氨酯原料循环的主要目的是回收原料多元醇。在这项研究中，提出了使用来自两种来源和两种纯度等级的甘油进行甘油分解的方法，作为化学循环的一种方法。本文的主要工作集中在使用分析级的商业甘油和未经生物柴油生产提纯的废甘油作为聚氨酯回收的分解剂。在这项研究中，通过FTIR，H-1 NMR和GPC研究了聚氨酯与甘油质量比（PU / GL）和分解剂类型对化学结构的影响。甘油水解产物的FTIR分析显示出与原始多元醇相似的吸收峰。这些结果与GPC色谱图相符，GPC色谱图显示所有样品在约200nm处有明确的峰。保留时间13分钟。甘油水解产物的分子量为800至1300 g mol（-1），具体取决于PU / GL的质量比。新型分解剂，即源自生物柴油生产的废甘油，已成功用于甘油分解过程。

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  • 来源
    《Journal of Polymers and the Environment》 |2018年第1期|166-174|共9页
  • 作者

    Datta Janusz; Kopczynska Patrycja; Simon Diego; Rodriguez Juan F.;

  • 作者单位

    Gdansk Univ Technol, Dept Polymer Technol, Fac Chem, G Narutowicza St 11-12, PL-80233 Gdansk, Poland;

    Gdansk Univ Technol, Dept Polymer Technol, Fac Chem, G Narutowicza St 11-12, PL-80233 Gdansk, Poland;

    Univ Castilla La Mancha, Inst Chem & Environm Technol ITQUIMA, Dept Chem Engn, Avda Camilo Jose Cela 12, E-13071 Ciudad Real, Spain;

    Univ Castilla La Mancha, Inst Chem & Environm Technol ITQUIMA, Dept Chem Engn, Avda Camilo Jose Cela 12, E-13071 Ciudad Real, Spain;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Recycling; Polyurethane waste; Elastomers; Glycerolysis; Glycerine;

    机译：回收;聚氨酯废料;弹性体;糖酵解;甘油;

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