Alkyd resins derived from glycolized waste poly(ethylene terephthalate)

被引：93

作者：

Karayannidis, GP ^{[1
]}

Achilias, DS ^{[1
]}

Sideridou, ID ^{[1
]}

Bikiaris, DN ^{[1
]}

机构：

[1] Aristotle Univ Thessaloniki, Dept Chem, Lab Organ Chem Technol, GR-54124 Thessaloniki, Macedonia, Greece

来源：

EUROPEAN POLYMER JOURNAL | 2005年 / 41卷 / 02期

关键词：

recycling; alkyd resins; curing of unsaturated polyesters; glycolysis; poly(ethylene terephthalate);

D O I：

10.1016/j.eurpolymj.2004.10.001

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

In this investigation the production of secondary value-added products, such as alkyd resins, derived from the glycolysis of poly(ethylene terephthalate) (PET) is examined as an effective way for its recycling. PET was taken from common soft-drink bottles and diethylene glycol (DEG) was used for the depolymerization at several initial molar ratios. The oligomers obtained were analyzed according to their average molecular weights. Furthermore, the glycolyzed PET products (oligomers) were reacted with maleic anhydride, phthalic anhydride and propylene glycol to form unsaturated polyester resins. These were subsequently mixed with styrene and cured using the benzoyl peroxide/amine initiator system to carry out the reaction in ambient temperature. The curing characteristics of the resins produced were investigated with respect to the initial molar ratio of DEG/PET as well as the initial initiator concentration. Finally, the mechanical properties (tensile strength and elongation at the break point) of the resins were compared with the conventional general purpose resin and were found to be comparable. (C) 2004 Elsevier Ltd. All rights reserved.

引用

页码：201 / 210

页数：10

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