Chemical recycling of poly(ethylene terephthalate) waste using ethanolamine. Sorting of the end products

被引：84
作者：
Tawfik, Magda E. [1 ]
Eskander, Samir B. [1 ]
机构：
[1] Natl Res Ctr, Polymer & Pigment Dept, Cairo, Egypt
来源：
POLYMER DEGRADATION AND STABILITY | 2010年 / 95卷 / 02期
关键词：
PET waste; Ethanolamine; Dibutyl tin oxide; Spectroscopic measurement; Thermal analysis; PET WASTE; TEREPHTHALATE;
D O I：
10.1016/j.polymdegradstab.2009.11.026
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
There is a growing keen interest aimed at recycling post-consumer poly(ethylene terephthalate), PET, wastes for both environmental and economic reasons. In this study ethanolamine (EA) has been investigated for aminolytic degradation of PET waste in the presence of dibutyl tin oxide (DBTO) as a catalyst. The process proceeds at 190 degrees C and under atmospheric pressure. The yield of white precipitate was subject to spectroscopic measurements (FT-IR, NMR, XRD and MS), to thermal analyses (DSC, DTA and TG) and to chemical testing (elemental analysis and solubility characterization). Based on the data reached from various examinations, the product formed is identified as bis (2-hydroxyethylene) terephthalamide (BHETA) which could be consider a source for differing polyurethanes. These kinds of materials have potential for many applications such as adhesives and coatings. (C) 2009 Elsevier Ltd. All rights reserved.
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收藏
页码：187 / 194
页数：8
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