Self-reinforced poly(ethylene terephthalate) composites by hot consolidation of Bi-component PET yarns

Zhang, Jian Min; Peijs, Ton

doi:10.1016/j.compositesa.2010.03.012

Cited by 61 publications

(49 citation statements)

References 50 publications

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“…Similarly, in the case of the 10 wt% FR containing composite also the matrix broke first, than the fibres were pulled out and continued to elongate until failure occurred, in this case, however, the noticeable vertical crack propagation indicates somewhat increased fibre-matrix adhesion. On the contrary, in the case of the PLA-SRC_FR16 sample the matrix and the fibres undergo about the same strain (35%) during deformation, their concurrent failure indicates strong bonding [13,26]. These observations can be explained by the balance of two competing phenomena.…”

Section: Mechanical Propertiesmentioning

confidence: 72%

Flame retarded self-reinforced poly(lactic acid) composites of outstanding impact resistance

Bocz

Domonkos

Igricz

et al. 2015

Composites Part A: Applied Science and Manufacturing

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Impact resistant all-poly(lactic acid) composites were prepared by filmstacking of highly crystalline poly(lactic acid) (PLA) fibres with fully amorphous PLA films. The flammability of the self-reinforced PLA composites (PLA-SRCs) was effectively reduced by incorporating ammonium polyphosphate based flame retardant (FR) additive and montmorillonite clays in a weight ratio of 10 to 1 into the matrix layers. As low as 16 wt% FR content proved to be sufficient for achieving self-* Corresponding author: tel: +36 1/463-1348, e-mail: kbocz@mail.bme.hu, address: Műegyetem rkp. 3., Budapest, 1111, Hungary 2 extinguishing behaviour, i.e. UL94 V-0 rating, and to achieve 50% and 40% reduction of peak of heat release rate and total heat emission, respectively. The introduction of FR additives improved also important mechanical properties compared to the FR-free all-PLA composite. The stiffness of the PLA-SRCs increased steadily with the FR contents of their matrix layers, furthermore, owing to the improved fibre-matrix bonding, prominent energy absorption capacity (impact perforation energy as high as 16 J/mm) was determined for the effectively flame retarded PLA-SRC.

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Section: Mechanical Propertiesmentioning

confidence: 72%

Flame retarded self-reinforced poly(lactic acid) composites of outstanding impact resistance

Bocz

Domonkos

Igricz

et al. 2015

Composites Part A: Applied Science and Manufacturing

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“…These include but are not limited to the following: bonding (self-bonding) improvement in thermally bonded nonwovens, strength and flexibility increase, cost reduction, and surface property enhancement [1][2][3][4]. In addition, bicomponent fibers [5] and nonwovens [6] were recently shown to be a good candidate for the formation of thermoplastic composite structures.…”

Section: Introductionmentioning

confidence: 99%

Influence of polymer type, composition, and interface on the structural and mechanical properties of core/sheath type bicomponent nonwoven fibers

et al. 2012

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In this study, we investigated the effect of polymer type, composition, and interface on the structural and mechanical properties of core-sheath type bicomponent nonwoven fibers. These fibers were produced using poly(ethylene terephthalate)/polyethylene (PET/PE), polyamide 6/polyethylene (PA6/PE), polyamide 6/polypropylene (PA6/PP), polypropylene/polyethylene (PP/PE) polymer configurations at varying compositions. The crystallinity, crystalline structure, and thermal behavior of each component in bicomponent fibers were studied and compared with their homocomponent counterparts. We found that the fiber structure of the core component was enhanced in PET/PE, PA6/PE, and PA6/PP whereas that of the sheath component was degraded in all polymer combinations compared to corresponding single component fibers. The degrees of these changes were also shown to be composition dependent. These results were attributed to the mutual interaction between two components and its effect on the thermal and stress histories experienced by polymers during bicomponent fiber spinning. For the interface study, the polymer-polymer compatibility and the interfacial adhesion for the laminates of corresponding polymeric films were determined. It was shown that PP/PE was the most compatible polymer pairing with the highest interfacial adhesion value. On the other hand, PET/PE was found to be the most incompatible polymer pairings followed by PA6/PP and PA6/PE. Accordingly, the tensile strength values of the bicomponent fibers deviated from the theoretically estimated values depending on core-sheath compatibility. Thus, while PP/PE yielded a higher tensile strength value than estimated, other polymer combinations showed lower values in accordance with their degree of incompatibility and interfacial adhesion. These results unveiled the direct relation between interface and tensile response of the bicomponent fiber.

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“…A compaction method for preparing selfreinforced polymer composites was developed to promote adhesive bonding between fibres (Ward and Hine, 1997;Ward and Hine, 2004;He and Porter, 1998). Following an initial study on all-PE composites, this hot compaction technique was successfully applied to all-PET composites (Von Lacroix et al, 1998;Hine and Ward, 2003;Zhang and Peijs, 2010;Hine et al, 1998) and PP fibres (El-Maaty et al, 1996;Teckoe et al, 1999;Hine et al, 2003;Jordan et al, 2003;Hine et al, 2005;Hine et al, 2008.) The technique requires careful temperature control during processing, since underheating will lead to insufficient wetting and interfacial adhesion, while overheating will destroy the properties of the oriented fibres George, Sreekala and Thomas, 2001;Herrera-Franco and Valadez-Gonzalez, 2004;Bocchini et al, 2007;Liu et al, 2004;Iwatake et al, 2008).…”

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confidence: 99%

Mechanical properties of self-reinforced poly(lactic acid) composites prepared by compression moulding of non-woven precursors

Mustapa¹,

Shanks²,

Kong³

2013

World Journal of Engineering

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A hot compaction method has been used to form all-PLA composites by partial melting and fusion of fibres in non-woven mats where the matrix phase is formed from partially melted fibres and the reinforcement phase is the original PLA fibres that remain. Compaction required a minimum of 10 min heating at temperature range 172°C to 176°C under a load of 2.4 MPa. An advantage is that the oriented high tensile strength fibre properties are retained, while matrix adhesion is strong because melt adhesion is provided by the same polymer. The all-PLA composite structure was confirmed using scanning electron microscopy (SEM) and wide-angle X-ray scattering. Mechanical properties were evaluated from modulated force thermo-mechanical analysis. The temperature window below melting temperature of PLA of about at 172°C to 176°C was found as the optimum temperature for all-PLA composites with optimum properties. SEM study also shown the gaps between the fibers are filled with recrystallised material that has melted from the original fibres.

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Self-reinforced poly(ethylene terephthalate) composites by hot consolidation of Bi-component PET yarns

Cited by 61 publications

References 50 publications

Flame retarded self-reinforced poly(lactic acid) composites of outstanding impact resistance

Flame retarded self-reinforced poly(lactic acid) composites of outstanding impact resistance

Influence of polymer type, composition, and interface on the structural and mechanical properties of core/sheath type bicomponent nonwoven fibers

Mechanical properties of self-reinforced poly(lactic acid) composites prepared by compression moulding of non-woven precursors

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