Synthesis and applications of unsaturated polyester resins based on PET waste

被引：40

作者：

Kim, Jinkyung ^{[1
]}

Jeong, Dookyo ^{[1
]}

Son, Changho ^{[1
]}

Lee, Younghee ^{[1
]}

Kim, Eunyong ^{[1
]}

Moon, Il ^{[1
]}

机构：

[1] Yonsei Univ, Dept Chem Engn, Seoul 120749, South Korea

来源：

KOREAN JOURNAL OF CHEMICAL ENGINEERING | 2007年 / 24卷 / 06期

关键词：

PET waste; glycolysis; unsaturated polyester resins; construction material;

D O I：

10.1007/s11814-007-0124-5

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Three types of unsaturated polyester resins were synthesized from the glycolysis of polyethylene terephthalate (PET) plastic waste, considering environment, cost and properties for their applications. These synthesized unsaturated polyester resins could be used for various construction processes and materials such as no dig pipelining (NDR-1), pultrusion (PLR-1) and polymer concrete (PCR-1). PET was taken from common soft-drink bottles, and ethylene glycol (EG), diethylene glycol (DEG) and MPdiol glycol mixtures were used for the depolymerization at molar ratios. The glycolyzed PET 1(st) products (oligomers) were reacted with maleic anhydride, phthalic anhydride and dicyclopentadiene (DCPD) (especially for polymer concrete) to form unsaturated polyester resins with mixed styrene. The lab scale (1-5 kg) and pilot plant scale-up tests (200 kg) were experimented to evaluate the processing characteristics, viscosity, acid number and curing behaviors. The main properties such as hardness, flexural strength, tensile strength, heat distortion temperature, elongation, and chemical resistance were determined based on the various uses of the three resins. Furthermore, the applicability and the properties of these developed resins were verified through many real application tests.

引用

页码：1076 / 1083

页数：8

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