Structure-Property Relationship of a Thermoplastic Vulcanizate (Tpv)/Layered Silicate Nanocomposites Prepared Using Maleic Anhydride Modified Polypropylene as a Compatibilizer

Polyethylene (PE) nanocomposite samples were prepared with Cloisite 25 A, 30B, and 93 A and Nanofil 5 and 3000 nanofillers. The amount of modified Na þ montmorillonite (MMT Na þ ) was fixed to 5 wt%. For the compounding of PE matrix and nanofillers, two different compounding equipments were used, KO Kneader Buss and APV twin-screw extruder. In all samples, maleic anhydride-modified PE (PEMa) was added as a compatibilizer. The content of PEMa in mixtures was always 5 wt%. The level of MMT exfoliation in the nanocomposite systems was studied by X-ray diffraction and by transmission electron microscopy observations. The properties of samples were evaluated by dynamical mechanical analysis (E* modulus at 308C) and by the measurement of tensile properties (stress and strain at break). Because of the possibility of usage of prepared materials in packaging industry, barrier properties were measured with focus on oxygen, carbon dioxide, and water vapor permeability. The influence of two different used compounding equipments on the prepared nanocomposite samples of PE nanocomposites was discussed.

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“…Currently, maleic anhydride-modified polypropylene is being studied and widely used [20][21][22][23].…”

Section: Introductionmentioning

confidence: 99%

Processing and Properties of Polyethylene/Montmorillonite Nanocomposites

Měřínská

Kubišová

Kalendová

et al. 2011

Journal of Thermoplastic Composite Materials

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“…Different kinds of nanofiller have been used to prepare nanocomposites like nanoclay, spherical nanoparticles, carbon nanotube, among others (58)(59)(60)(61)(62)(63)(64)(65)(66)(67)(68)(69)(70)(71)(72). In addition, the development of environment-friendly polymers is one of recent important issues.…”

Section: Applications Of Pp/epdm Blendsmentioning

confidence: 99%

Polypropylene/Ethylene–Propylene–Diene Terpolymer Blends

Chowdhury

Kim

et al. 2007

Polyolefin Blends

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“…Studies on TPV/clay nanocomposites (TPVCN) have been widely reported in literature . Nanostructured TPVCN can be fabricated by melt mixing method using proper modification of nanofillers and matrix polymers to impart sufficient thermodynamic compatibility between them.…”

Section: Introductionmentioning

confidence: 99%

“…Thus, TPVCN is successfully employed in diverse applications such as electrical, construction, healthcare, packaging, and many more fields. The literature review revealed that some published papers are dedicated to the polypropylene/ethylene propylene diene monomer rubber (PP/EPDM), and ethylene vinyl acetate/natural rubber ((EVA/NR) blends based TPVCN.…”

Section: Introductionmentioning

confidence: 99%

Nanocomposites based on thermoplastic polyurethane, millable polyurethane and organoclay: Effect of matrix composition and dynamic vulcanization

Barick

Chang

2013

J of Applied Polymer Sci

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Dynamically vulcanized thermoplastic polyurethane (TPU)/millable polyurethane (MPU) blend nanocomposites, simple TPU/MPU blend nanocomposite, and TPU nanocomposite with 3 parts per hundred (phr) of organoclay were melt compounded in an internal mixer. Interfacial interactions between the organoclay and polyurethanes were examined by Fourier transform infrared spectroscopy, X-ray diffraction, and transmission electron microscope analysis, which revealed that the dispersion of organoclays significantly improved with increasing TPU content in the TPU/MPU blends and dynamic vulcanization process. Tensile test and dynamic mechanical analysis showed that the mechanical properties are improved with the TPU content in the TPU/MPU blends and dynamic vulcanization process. Both hardness and tension set of the samples decreased with increasing MPU content in the TPU/MPU blends. Thermal stability determined by thermo-gravimetric analysis revealed that it increased with increase in TPU concentration in the samples. Differential scanning calorimetry study showed that the glass transition temperature (T g ), melting temperature (T m ), and melt crystallization temperature (T c ) of the samples were significantly affected by the blend composition and dynamic vulcanization. Dynamic melt rheology of the nanocomposite samples in the molten state revealed a pseudo solid-like behavior as well as an enhanced shear thinning behavior, and the variation of the rheological properties are well correlated with blend compositions and morphology of the nanocomposites.

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Structure-Property Relationship of a Thermoplastic Vulcanizate (Tpv)/Layered Silicate Nanocomposites Prepared Using Maleic Anhydride Modified Polypropylene as a Compatibilizer

Cited by 15 publications

References 0 publications

Processing and Properties of Polyethylene/Montmorillonite Nanocomposites

Processing and Properties of Polyethylene/Montmorillonite Nanocomposites

Polypropylene/Ethylene–Propylene–Diene Terpolymer Blends

Nanocomposites based on thermoplastic polyurethane, millable polyurethane and organoclay: Effect of matrix composition and dynamic vulcanization

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