Preparation and characterization of poly(ethylene terephthalate) powder-filled high-density polyethylene in the presence of silane coupling agents

Demir, Tugba; Ti̇nçer, T.

doi:10.1002/1097-4628(20010131)79:5<827::aid-app70>3.0.co;2-4

Cited by 21 publications

(10 citation statements)

References 21 publications

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“…The lack of interfacial adhesion exhibited by all LDPE/PET blends is a result of the non-compatibility of the blend components as already reported in the literature. [4,5,25] Figure Figure 4. The PET inclusion size is reduced to 1-5 mm, and the blend has a finer PET dispersion.…”

Section: Resultsmentioning

confidence: 99%

“…[3] Furthermore, the development of PE/PET blends have been intensified as a result of the availability of both polymer components, i.e., PE and PET as a post consumer waste. [4] In addition, the recovery of plastic waste is often advantageous from both an economical and environmental point of view. [3,4] However, the reprocessing of plastic wastes by a simple melt blending usually leads to poor physical properties of the products.…”

Section: Introductionmentioning

confidence: 99%

“…[4] In addition, the recovery of plastic waste is often advantageous from both an economical and environmental point of view. [3,4] However, the reprocessing of plastic wastes by a simple melt blending usually leads to poor physical properties of the products. [5,6] This is the case for PE/PET blends, which are characterized by gross phase segregation and a weak interfacial adhesion, because the two polymer components are immiscible and have extremely poor mechanical properties.…”

Section: Introductionmentioning

confidence: 99%

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Waste and Virgin LDPE/PET Blends Compatibilized with an Ethylene‐Butyl Acrylate‐Glycidyl Methacrylate (EBAGMA) Terpolymer, 1

Kaci¹,

Benhamida²,

Cimmino³

et al. 2005

Macro Materials & Eng

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Summary: This work is aimed at studying the morphology and the mechanical properties of blends of low density polyethylene (LDPE) and poly(ethylene terephthalate) (PET) (10, 20, and 30 wt.‐% of PET), obtained as both virgin polymers and urban plastic waste, and the effect of a terpolymer of ethylene‐butyl acrylate‐glycidyl methacrylate (EBAGMA) as a compatibilizer. LDPE and PET are blended in a single screw extruder twice; the first extrusion to homogenize the two components, and the second to improve the compatibilization degree when the EBAGMA terpolymer is applied. Scanning electron microscopy (SEM) analysis shows that the fractured surface of both the virgin polymer and the waste binary blends is characterized by a gross phase segregation morphology that leads to the formation of large PET aggregates (10–50 µm). Furthermore, a sharp decrease in the elongation at break and impact strength is observed, which denotes the brittleness of the binary blends. The addition of the EBAGMA terpolymer to the binary LDPE/PET blends reduces the size of the PET inclusions to 1–5 µm with a finer dispersion, as a result of an improvement of the interfacial adhesion strength between LDPE and PET. Consequently, increases of the tensile properties and impact strength are observed.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Waste and Virgin LDPE/PET Blends Compatibilized with an Ethylene‐Butyl Acrylate‐Glycidyl Methacrylate (EBAGMA) Terpolymer, 1

Kaci¹,

Benhamida²,

Cimmino³

et al. 2005

Macro Materials & Eng

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“…[25] The effective compatibilization in PET/HDPE systems was determined by the effect of the compatibilizer type: EGMA, PE-g-MA, GMA, and different isocyanate compatibilizers, [26][27][28][29][30][31][32][33] compatibilizer content and mixing procedure. [23] Furthermore, the procedure of waste poly(ethylene-terephthalate) recycling (PET) by blend preparing is a method that results in material with changed or some new properties.…”

Section: Introductionmentioning

confidence: 99%

Study of masterbatch effect on miscibility and morphology in PET/HDPE blends

Krehula¹,

Hrnjak-Murgić²,

Jelenčić³

2014

Journal of Adhesion Science and Technology

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The present work studies the morphology in poly(ethylene-terephthalate)/polyethylene (PET/HDPE) polymer blends and its impact on blend properties. Mixing process in blend preparation is the important parameter for the type of obtained blend morphology and final blend properties, so two different mixing processes were used. In the first one, all components are mixed together while another one includes two step mixing procedure using two different types of masterbatch as compatibilizers for PET/HDPE system. Such blends can be considered in terms of PET polymer recycling in the presence of HDPE impurities in order to find suitable compatibilizers, which will enhance the interactions between these two polymers and represents the possible solution in recycling of heterogeneous polymer waste. The morphology of the studied PET/HDPE blends was inspected by scanning electron microscopy to examine the influence of the mixing process and various compositions on blends morphology, and interactions between PET and HDPE. The surface properties were characterized by contact angle measurements. The effect of the extrusion on the samples thermal behaviour was followed by DSC measurements. FTIR spectroscopy was used for the determination of interactions between blend constituents. It can be concluded that the type of mixing process and the carefully chosen compatibilizer are the important factors for obtaining the improved compatibility in PET/HDPE blends.

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“…It was expected that alkoxy groups of SCA might easily react with hydroxyl end groups of PET, and with this modification, PET could bind to PP by giving improved mechanical properties and a better morphology. In previous studies, our group showed that SCAs can be used to enhance the properties of not only inorganic fillers containing polymeric materials but also immiscible polymer blends 11–13…”

Section: Introductionmentioning

confidence: 99%

Melt blending of poly(ethylene terephthalate) with polypropylene in the presence of silane coupling agent

Oyman¹,

Ti̇nçer²

2003

J of Applied Polymer Sci

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A silane coupling agent (SCA) was used as a compatibilizer for polypropylene-poly(ethylene teraphthalate) (PP-PET) blends with 20, 40, 50, and 60% PET compositions by weight. PP-PET mixtures were blended with and without an SCA by a single-screw extruder. The effect of silane modification on the tensile and impact properties of the blends was investigated. The morphology and thermal behavior of the blends were examined with scanning electron microscopy (SEM) and differential scanning calorimetry (DSC), respectively. The presence of the SCA used in this work extensively improved the mechanical properties of the blends. Mechanical properties were found to be highly dependent on the numbers of extrusions. SEM studies showed that substantially different morphology with better adhesion existed when SCA-treated blends were compared to nontreated PP-PET blends. The presence of individual melting temperatures of the polymers in all compositions with no significant T m depression indicated that PET and PP were crystallized separately.

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Preparation and characterization of poly(ethylene terephthalate) powder-filled high-density polyethylene in the presence of silane coupling agents

Cited by 21 publications

References 21 publications

Waste and Virgin LDPE/PET Blends Compatibilized with an Ethylene‐Butyl Acrylate‐Glycidyl Methacrylate (EBAGMA) Terpolymer, 1

Waste and Virgin LDPE/PET Blends Compatibilized with an Ethylene‐Butyl Acrylate‐Glycidyl Methacrylate (EBAGMA) Terpolymer, 1

Study of masterbatch effect on miscibility and morphology in PET/HDPE blends

Melt blending of poly(ethylene terephthalate) with polypropylene in the presence of silane coupling agent

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