Morphological interpretations and micromechanical properties of polyamide-6/polypropylene-grafted-maleic anhydride/nanoclay ternary nanocomposites

Dayma, Naresh; Satapathy, Bhabani K.

doi:10.1016/j.matdes.2010.05.024

Cited by 67 publications

(48 citation statements)

References 39 publications

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“…The ratio of the length to thickness is usually defined as aspect ratio for disk-like platelets of silicate layers. The a and E f values for OC (Cloisite 30B) used in this work are assumed to be 0.013 and 178 GPa, respectively [20]. Also, neat blends were considered as the polymer matrix of the nanocomposite.…”

Section: Mechanical Propertiesmentioning

confidence: 99%

On nanoclay localization in polypropylene/poly(ethylene terephthalate) blends: Correlation with thermal and mechanical properties

et al. 2013

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Section: Mechanical Propertiesmentioning

confidence: 99%

On nanoclay localization in polypropylene/poly(ethylene terephthalate) blends: Correlation with thermal and mechanical properties

et al. 2013

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“…The details of raw material selection (i.e., PA‐6, PP‐g‐MA, and nanoclay; Cloisite 30B) and their characteristics are given in Table that was already reported by the authors elsewhere . Co‐rotating type (Prism Euro Lab 16/Thermo scientific) twin screw extruder with L / D = 40 is used for the mixing of PA‐6/PP‐g‐MA (80:20 by wt%) blend and nanoclay.…”

Section: Methodsmentioning

confidence: 99%

“…Rectangular strips of dimension (i.e., 80 mm × 20 mm × 1 mm) were cut from the plates for post‐yield fracture mechanics investigations. The morphological attributes such as state of intercalation/exfoliation of cryo‐microtomed nanocomposites were characterized by transmission electron microscopy (TEM) and were already reported . The details of composite designations are shown in Table .…”

Section: Methodsmentioning

confidence: 99%

Time-Dependent Crack-Growth and Isochronous Strain Field Analysis of Polyamide-6/Polypropylene-Grafted-Maleic Anhydride/Nanoclay Ternary Nanocomposites

Dayma

Jaggi

Kumar

et al. 2013

Macromol. Mater. Eng.

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The kinetics and dynamics of post‐yield fracture behavior of polyamide‐6 (PA‐6)/polypropylene‐grafted‐maleic anhydride (PP‐g‐MA)/clay nanocomposites are comprehensively evaluated. To ascertain the nature of crack growth from kinetic aspects, time‐synchronized deformation data prior to failure are acquired as images at various time scales. This study demonstrates the nanoclay induced crack toughness mechanism evident from the dominance of crack tip opening displacement over crack extension to be originating fundamentally due to the intrinsic ability of the material to dissipate stress waves from the inner fracture process zone (IFPZ) to the outer plastic deformation zone. Such quantification of stress wave dissipation modes via strain field analysis demonstrates a new approach to understand fracture‐mechanics for designing materials objectively aided by convincing visualization.

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“…Poly(butylene terephthalate) (PBT) is an important semicrystalline engineering thermoplastic with many valuable properties including a high rate of crystallization, good solvent resistance, thermal stability, and excellent processing properties (1)(2)(3)(4)(5)(6). PBT has gained much interest in recent years.…”

Section: Introductionmentioning

confidence: 99%

Super-tough Poly(butylene terephthalate) Materials: Blending with CSSP Nanoparticles

Fu¹,

Li²,

Yao³

et al. 2015

Soft Materials

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Core-shell structured polyacrylic (named CSSP) impact modifiers consisting of a rubbery poly(n-butyl acrylate) core and a rigid poly(methyl methacrylate) shell with a size of about 353 nm were synthesized by seed emulsion polymerization with a redox initiation system. The CSSP modifier with core-shell weight ratio 75/25 was used to modify the toughness of poly(butylene terephthalate) (PBT) by melt blending. With an increase in CSSP content, the elongation at break and the impact strength were significantly increased compared with that of PBT; however, the PBT/CSSP blends showed decreased tensile strength. It was found that the polymerization had a A c c e p t e d M a n u s c r i p t 2 very high instantaneous conversion (>95.7%) and overall conversion (99.7%). The morphology of the core-shell structure was confirmed by means of transmission electron microscopy.Scanning electron microscopy was used to observe the morphology of CSSP particle and fractured surface. The dynamic mechanical analyses of PBT/CSSP blends showed two merged transition peaks of PBT matrix, with the presence of CSSP core-shell structured modifier, which was responsible for the improvement of PBT toughness. The results indicated that the notch impact strength of PBT/CSSP blends with weight ratio 85/15 was 8 times greater than that of pure PBT, when the brittle-ductile transition point appeared.

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Morphological interpretations and micromechanical properties of polyamide-6/polypropylene-grafted-maleic anhydride/nanoclay ternary nanocomposites

Cited by 67 publications

References 39 publications

On nanoclay localization in polypropylene/poly(ethylene terephthalate) blends: Correlation with thermal and mechanical properties

On nanoclay localization in polypropylene/poly(ethylene terephthalate) blends: Correlation with thermal and mechanical properties

Time-Dependent Crack-Growth and Isochronous Strain Field Analysis of Polyamide-6/Polypropylene-Grafted-Maleic Anhydride/Nanoclay Ternary Nanocomposites

Super-tough Poly(butylene terephthalate) Materials: Blending with CSSP Nanoparticles

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