The properties of unsaturated polyester based on the glycolyzed poly(ethylene terephthalate) with various glycol compositions

Suh, Duck Jong; Park, O.O; Yoon, Kwan Han

doi:10.1016/s0032-3861(99)00168-8

Cited by 120 publications

(70 citation statements)

References 15 publications

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“…Chemically recycled PET can be used for applications in the manufacture of polyurethane (Lee et al 1994(Lee et al , 1995Vaidya and Nadkarni 1990) and unsaturated polyester resin (Abdel-Azim et al 1994;Lu and Kim 2001;Suh et al 2000). Polyurethane is a widely used polymer for various applications such as insulation, seating materials, and artificial leather (Park et al 2013).…”

Section: Applications For Chemically Recycled Petmentioning

confidence: 99%

Poly (ethylene terephthalate) recycling for high value added textiles

Park

Kim

2014

Fashion and Textiles

246

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This study reviews the problems in the use and disposal of poly (ethylene terephthalate) (PET) and includes the concise background of virgin and recycled PET as well as their possible applications. The current state of knowledge with respect to PET recycling method is presented. Recycling of PET is the most desirable method for waste management, providing an opportunity for reductions in oil usage, carbon dioxide emissions and PET waste requiring disposal because of its non-degradability. Advanced technologies and systems for reducing contamination, mechanical and chemical recycling, and their applications are discussed, and the possibility of diverting the majority of PET waste from landfills or incineration to recycling is suggested.

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Section: Applications For Chemically Recycled Petmentioning

confidence: 99%

Poly (ethylene terephthalate) recycling for high value added textiles

Park

Kim

2014

Fashion and Textiles

246

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“…Therefore, recycling of PET will not only serve as a partial solution to the solid waste problem but also contribute to the conservation of raw petrochemical products and energy. In other words, product made from recycled plastics can results in half energy saving [1]. The use of UPR from recycled PET as a binder is important for the construction industry and also helps in the long-term utilization of PET waste in an effective and economical manner [2].…”

Section: Introductionmentioning

confidence: 99%

Effect of Chemical Treatment on Mechanical and Water-Sorption Properties Coconut Fiber-Unsaturated Polyester from Recycled PET

Abdullah

Ahmad

2012

ISRN Materials Science

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Coconut fibers were used as reinforcement for unsaturated polyester resin from recycled PET that has been prepared using glycolysis and polyesterification reaction. Various concentrations of alkali, silane, and silane on alkalized fiber were applied and the optimum concentration of treatments was determined. Morphological and mechanical properties of the composite have also been investigated to study the effect of fiber surface treatment. The influence of water uptake on the sorption characteristics of composites was studied via immersion in distilled water at room temperature. Surface treatment of coconut fiber caused a significant increase in the tensile properties with the optimum treatment of 0.5% silane on the 5% alkalized coconut fiber/polyester composites. For water absorption study, it was observed that the treated fiber composites showed lower water absorption properties in comparison to those of untreated fiber composites. SEM investigation showed that the surface modification of fiber has better fiber-matrix interaction. Thus, chemical treatments on the fiber improve fiber/matrix adhesion especially for silane on alkalized fiber treatment.

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“…The glycolysis reaction is molecular degradation of PET polymer by glycols, in the presence of transesterification catalysts, mainly metal acetates [2], various chloride catalyst [3], and sodium sulfate [4]. The glycolysis products could be used for the synthesis of different resins, such as epoxy [5,6], unsaturated polyester resin [7,8,9], alkyd [10,11] or melamine formaldehyde resins [12].…”

Section: Introductionmentioning

confidence: 99%

Investigation of Potentional Use of Recycled Poly(ethylene Terephthalate) in Polyurethane Synthesis

Ristić

Cakić

Ilić

et al. 2012

Contemporary Materials

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This paper presents an outline of developed methods for chemical recycling of postconsumer poly(ethylene terephthalate) (PET) waste bottles. Oligoesters (obtained by chemical recycled PET) with 2,2-bis (hydroxyl methyl) propionic acid, as hydrophobic monomer, and isophorone diisocyanate as cross-linker, in the presence of di-ndibutyl tin(IV)dilaurate catalyst, were used for polyurethane dispersions. Molecular masses of obtained products were analyzed by gel permeation chromatography. Infra-red spectroscopy was used for molecular structures analysis. Thermal properties were evaluated by using differential scanning calorimetry and thermogravimetric analysis.

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The properties of unsaturated polyester based on the glycolyzed poly(ethylene terephthalate) with various glycol compositions

Cited by 120 publications

References 15 publications

Poly (ethylene terephthalate) recycling for high value added textiles

Poly (ethylene terephthalate) recycling for high value added textiles

Effect of Chemical Treatment on Mechanical and Water-Sorption Properties Coconut Fiber-Unsaturated Polyester from Recycled PET

Investigation of Potentional Use of Recycled Poly(ethylene Terephthalate) in Polyurethane Synthesis

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