Ethylene-octene copolymer (POE) toughened polyamide 6/polypropylene nanocomposites: Effect of POE maleation

Wahit, Mat Uzir; Hassan, Azman; Ishak, Z. A. Mohd; Czigány, Tibor

doi:10.3144/expresspolymlett.2009.39

Cited by 38 publications

(34 citation statements)

References 29 publications

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“…Chiu and Chuang reported that the 80PA/20TPU/20POE-g-MA blend prepared by twin screw extrusion has better tensile stress and elongation than non-modified 80PA/20TPU blend, and furthermore, PEO-g-MA significantly improves the impact strength of PA, even to super-toughness grade [47]. Wahit et al used PEO as an effective toughening agent for preparation of rubber-toughened PP/PA6 nanocomposites [48][49][50][51]. They showed that the addition of PEO to the PA6/PP (PA6 (30/70) nanocomposites increased the toughness of the nanocomposites but with limited success due to its immiscibility with PA6.…”

Section: Recent Progress In Rubber-organoclay Nanocompositesmentioning

confidence: 99%

“…Recenty, these authors prepared PEO elastomer and PEO grafted MA (POE-g-MA) toughened nanocomposites of PP/PA6 containing 4 wt% organophilic modified MMT clay by melt compounding followed by injection moulding. PP-g-MA was used by authors to compatibilize the blend system [51]. According to the authors, elastomer domains of PEO-g-MA show a finer and more uniform dispersion than that of PEO in the PP/PA6/organoclay matrix.…”

Section: Recent Progress In Rubber-organoclay Nanocompositesmentioning

confidence: 99%

See 1 more Smart Citation

Preparation and Characterization of Thermoplastic Elastomers/Plasticizer - Compatibilizer/Organoclay Nanocomposites by Reactive Extrusion System

Ad¹,

Mor²,

Erdoğan³

2017

Chem Sci J

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Polymer layered silicate nano-composites were prepared in melt by reactive extrusion (25:1 21 mm Rondol twinscrew compounding line) using poly(ethylene-co-propylene-co-ethylidenenorbornene) terpolymer (EPDM) as a matrx polymer, PP-g-MA and poly[(maleic anhydride-alt-1-octadecene)-g-PEO (poly(MA-alt-OD)-g-PEO) as functionalized polymer compatibilizer-internal plasticizer, octadecyl amine-montmorillonite (ODA-MMT) and dimethyldidodecyl ammonium -MMT (DMDA-MMT) as reactive and non-reactive nano-fillers, respectively. The formation of nano structural fragments, polymer blend composition-properties (thermal behavior and morphology) was studied using FTIR, XRD, TGA-DTG and DSC analysis methods. It was found that intercalation/exfoliation degree of EPDM macromolecules significantly depends on the origin and content of organoclays. Better results were obtained for nanocomposites prepared in the presence of reactive organo-filler (ODA-MMT) and PEO grafted alternating copolymer. The results of FTIR (chemical structure) and XRD (physical structure and exfoliation degree) analyses indicate that amidization of anhydride copolymer with alkyl amine groups of organo-filler and esterification of alternating copolymer with α -hydroxy-ω -methoxy-PEO occur in melt compounding in situ processing in the chosen extrusion conditions (barrel temperature: 120, 130, 140 and 145°C, twin-screw speed around 30-40 mrp). The glass-transition (Tg), melting (Tm) and recrystallization (Tc) temperatures strongly depend on the origin and content of organoclay and PEO-grafted copolymer-compatibilizer, respectively. Thermal behavior, crystallinity and thermostability of nanocomposites were significantly improved as compared with pristine EPDM terpolymer.

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Section: Recent Progress In Rubber-organoclay Nanocompositesmentioning

confidence: 99%

Section: Recent Progress In Rubber-organoclay Nanocompositesmentioning

confidence: 99%

Preparation and Characterization of Thermoplastic Elastomers/Plasticizer - Compatibilizer/Organoclay Nanocomposites by Reactive Extrusion System

Ad¹,

Mor²,

Erdoğan³

2017

Chem Sci J

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“…On copolymerizing ethylene monomers with 1-octene using newly developed metallocene catalysts, it has been shown that the comonomers can be added to produce a homogeneously distributed C-6 side chains in the main polyethylene chain 2 . This affects, as shown by microscopic and calorimetric investigations, greatly the crystallization behavior and morphology formation 4,8 .…”

Section: Morphology Of Eocs and Hdpe/eoc3 Blendsmentioning

confidence: 99%

“…Owing to their significantly better mechanical and thermal properties, rapidly increasing industrial applications of metallocene based ethylene copolymers have been reported 6 . During the recent years, a lot of progress has been made in the structural characterization, their chemical modification [8][9][10][11][12] , blending with different polymers of these kinds of polymers.…”

Section: Introductionmentioning

confidence: 99%

Morphology of Ethylene/1-Octene Copolymers and Their Blends with High Density Polythylene: A Microscopic Evaluation

Adhikari

2013

J. Nepal Chem. Soc.

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“…But its toughness, and in particular its notched toughness, is insufficient for PP to be used as an engineering plastic. To solve the problem, elastomers like poly (ethylene-1-octene) (POE) and !-nucleating agents (NA) are the two broad types of modifiers to achieve the high impact resistance of PP [8][9][10][11][12][13][14][15][16][17][18][19][20]. PP is toughened by POE and NA through totally different mechanism: the former relies on the energy absorption of elastomer particles when impacting whereas NA can promote the growth of !-crystals instead of the "-form and !-nucleated PP shows better impact resistance [21][22][23][24][25].…”

Section: Introductionmentioning

confidence: 99%

Non-uniform dispersion of toughening agents and its influence on the mechanical properties of polypropylene

Li¹,

Liu²,

Liu³

et al. 2014

Express Polym. Lett.

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Abstract. To achieve excellent properties of polymer blends and composites, good dispersion and uniform distribution of second component or filler in the matrix are often required. However, more and more evidences reveal that uniform distribution is not always the best. To further prove this idea, in this work, we purposely designed and prepared different samples of isotactic polypropylene (iPP)/elastomer or iPP/!-nucleating agent with uniform and non-uniform distribution of the modifiers via stacking the blending sheets in different sequence. It was found that for a given amount of toughening agent, the impact strength of polymer blends with non-uniform distribution of elastomer or !-nucleating agent could be much higher than its uniformly dispersed counterpart, while the tensile strength and tensile modulus remain relatively constant. The instrumented impact test confirmed that among the samples with different layered structures, the absorbed energy during crack initiation differs little from each other. Whereas absorbed energy during crack propagation process shows the same trend as final impact strength, making it the controlling parameter during the impact process. When cracks are initiated at higher toughening agents content side, the relatively smooth fracture surfaces near the crack edge area proved that they absorb small energy and the adjacent inner part showed obviously plastic deformation, corresponding to higher energy absorption. Our work demonstrates again that design and control of the hierarchical structure of polymer articles is vital for high performance properties and non-uniform distribution of filler could be much better than the uniform distribution.

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Ethylene-octene copolymer (POE) toughened polyamide 6/polypropylene nanocomposites: Effect of POE maleation

Cited by 38 publications

References 29 publications

Preparation and Characterization of Thermoplastic Elastomers/Plasticizer - Compatibilizer/Organoclay Nanocomposites by Reactive Extrusion System

Preparation and Characterization of Thermoplastic Elastomers/Plasticizer - Compatibilizer/Organoclay Nanocomposites by Reactive Extrusion System

Morphology of Ethylene/1-Octene Copolymers and Their Blends with High Density Polythylene: A Microscopic Evaluation

Non-uniform dispersion of toughening agents and its influence on the mechanical properties of polypropylene

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