Comparison of compatibilizer effectiveness for PET/HDPE blends

Kalfoglou, Nikos K.

doi:10.1016/0032-3861(95)96853-z

Cited by 115 publications

(102 citation statements)

References 13 publications

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“…Kalfoglou et al 4) in order to compatibilize PET/HDPE blends, tested four different compatibilizers: an ethylene/ glycidyl methacrylate copolymer (E/GMA), an ethylene/ ethyl acrylate/glycidyl methacrylate terpolymer (E/EA/ GMA), a hydrogenated styrene/butadiene/styrene copolymer grafted with maleic anhydride (SEBS-g-MA), and a maleic anhydride modified ethylene/methyl acrylate copolymer (E/MeA-g-MA). The strongest compatibilizing effect is obtained with copolymers containing epoxy functions because they can react with hydroxyl and carboxyl end groups of PET.…”

Section: Introductionmentioning

confidence: 99%

Reactive compatibilization of HDPE/PET blends by glycidyl methacrylate functionalized polyolefins

Piétrasanta¹,

Robin²,

Torres³

et al. 1999

Macromol. Chem. Phys.

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SUMMARY: Blends of high-density polyethylene (HDPE) and poly(ethylene terephthalate) (PET) in weight compositions of 20/80, 40/60, 60/40 and 80/20 were modified with glycidyl methacrylate functionalized polyolefins with the aim of improving the compatibility and in particular elongation and impact strength. The compatibilizers used were ethylene/glycidyl methacrylate copolymers (E/GMA) and ethylene/ethyl acrylate/ glycidyl methacrylate terpolymers (E/EA/GMA) with variable contents of reactive functions (1 to 8 wt.-% of glycidyl methacrylate). The effects of the compatibilizers were evaluated by studying the mechanical properties and the morphology of the blends. The addition of 5 wt.-% of functionalized polyolefins was found sufficient to improve ductility and impact strength of all compositions. A more pronounced compatibilizing effect was obtained with the functionalized terpolymer containing the smallest amount of glycidyl methacrylate. With this emulsifying agent, elongation at break is increased by a factor of four for the compositions near the inversion of phases. However, the main interest of this work is that it provides a compatibilization of immiscible blends of polyolefin and polyester by injection moulding. This melt processing is very interesting from an industrial point of view because it proves that materials with good mechanical properties can be obtained in one step of processing.

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Section: Introductionmentioning

confidence: 99%

Reactive compatibilization of HDPE/PET blends by glycidyl methacrylate functionalized polyolefins

Piétrasanta¹,

Robin²,

Torres³

et al. 1999

Macromol. Chem. Phys.

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“…EGMA has been used in polyester/polyolefin blends. [26][27][28][29][30] Provided super-toughness is obtained, the comparison of the new τ c -E d value with those of previous blends, and the comparison of the τ c -adhesion value of this study with those of PBT/PEO 3,7,8 blends compatibilized in other ways could give experimental information about the parameters τ c depends on.…”

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confidence: 99%

Compatibilization of Poly(butylene terephthalate)/Metallocenic Poly(ethylene-octene) Blends by Means of Poly(ethylene-co-glycidyl methacrylate)

Aróstegui¹,

Nazábal²

2003

Polym J

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ABSTRACT:Super-tough poly(butylene terephthalate) (PBT) based blends were obtained by melt blending PBT with 20 wt% poly(ethylene-octene) copolymer (PEO), and varying amounts of poly(ethylene-co-glycidyl methacrylate) (EGMA) as a compatibilizer. Partially reacted EGMA dissolved completely, mainly in the PBT-rich phase, up to 4% EGMA, at which point a crystalline EGMA phase appeared. The reaction and the consequent compatibilization led to a decrease in the particle size and to an improvement in the adhesion between the components. Two percent EGMA was the minimum content required to reach maximum super-toughness, that also corresponded to the maximum ductility. The inter-particle distance (τ) was the parameter that controlled super-toughness. The study of the parameters that τ c depends on, showed that τ c was independent of the modulus of the dispersed phase (E d ) over the τ c range studied. However, the dependence of τ c on adhesion at the interphase was seen by means of the comparison of the τ c -interfacial tension relationship of this blend with those of previous studies.

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“…HDPE-g-MA improved the mechanical properties of HDPE/chitosan composites in the research of Quiroz-Castillo et al [26]. The improved effect of SEBS-g-MA on impact properties has been proven in PET/HDPE blend in several studies [27][28][29][30][31]. It was also mentioned by Jogi et al [32] and Hato et al [33] that copolymers grafted with maleic anhydride promoted the compatibility between plastics and organoclays in nanocomposites.…”

Section: Introductionmentioning

confidence: 86%

Investigation of compatibilization effects of SEBS-g-MA on polystyrene/polyethylene blend with a novel separation method in melted state

Dobrovszky

Ronkay

2016

Polym. Bull.

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Abstract:Preparing polymer blends is an effective way to tailor the good properties of plastics but the most commonly used polymers are incompatible with each other. Therefore, to reduce the interfacial tension and to achieve finer and stable morphology, a suitable copolymer or compatibilizer has to be added to blends in order to establish new interactions between the phases. However, it is difficult to determine the required amount of compatibilizers in polymer blends. As an outcome of the present research a novel separation method was developed, where the blends are investigated in melted state, utilising centrifugal force to determine the adequacy of compatibilizers. The effectiveness of styrene/ethylene/butylene/styrene block copolymer grafted with maleic anhydride (SEBS-g-MA) was verified by blending two immiscible plastics: polystyrene (PS) and high density polyethylene (HDPE). FTIR measurements were carried out to support the results of optical microscopy regarding the purity of separation. Comparing the results of morphology, rheology and mechanical properties with the novel separation method, it seems that investigation of compatibilization effect in a melted state would be suitable for predicting the adequacy of compatibilizer in blend. The minimum required amount of compatibilizer was also detectable, wherein the stress-strain curves begins to change significantly and the impact properties starting to improve in PS/HDPE blends.Keywords: compatibilization; polymer separation; polymer blend; centrifugal force; polymers in melted state.Acknowledgements: This research was realized in the framework of TÁMOP 4.2.4. A/1-11-1-2012-0001 "National Excellence Program -Elaborating and operating an inland student and researcher personal support system".

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Comparison of compatibilizer effectiveness for PET/HDPE blends

Cited by 115 publications

References 13 publications

Reactive compatibilization of HDPE/PET blends by glycidyl methacrylate functionalized polyolefins

Reactive compatibilization of HDPE/PET blends by glycidyl methacrylate functionalized polyolefins

Compatibilization of Poly(butylene terephthalate)/Metallocenic Poly(ethylene-octene) Blends by Means of Poly(ethylene-co-glycidyl methacrylate)

Investigation of compatibilization effects of SEBS-g-MA on polystyrene/polyethylene blend with a novel separation method in melted state

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