Mechanical and Oxygen Barrier Properties of LDPE/MMT/MAPE and LDPE/MMT/EVA Nanocomposite Films: A Comparison Study

Majeed, Khaliq; Arjmandi, Reza; Hassan, Azman

doi:10.21315/jps2018.29.1.4

Cited by 19 publications

(10 citation statements)

References 30 publications

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“…EVA copolymers are frequently applied as compatibilizers in clay-containing polyolefin nanocomposites. [13,[18][19][20][21] Another notable feature of Figure 5 is the beneficial effect of adding more EVA component in PE/EVA blends. By increasing the EVA level in the mixtures, the d-spacing of clay galleries rises to larger values.…”

Section: Morphological Observationsmentioning

confidence: 99%

“…The lower tensile strength of polymeric systems in the presence of fillers is frequently reported. [3,13,20,21,32,[39][40][41] This effect is dominant in controlling the elongation at break of most samples as well. Additionally, as found in the "morphological observations", the incorporation of nanofiller results in the finer phase-separated morphologies.…”

Section: Variable No 2: Nanoclay Loadingmentioning

confidence: 99%

“…Like common compatibilizers such as block copolymers, the intercalated stacks can provide in-situ grafting between two polymeric phases and improve the interfacial adhesion. [20,50,51] Considering this fact, the failure of samples occurs at larger strains.…”

Section: Variable No 4: Mixing Sequencementioning

confidence: 99%

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A correlation between morphology and mechanical performance of injected‐molded PE/EVA/clay nanocomposites: Insight into phase miscibility and interfacial phenomena

Hosseiny

Jafari

Khonakdar

et al. 2020

J of Applied Polymer Sci

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In this study, the correlations between the mechanical performance and structural properties of injected‐molded polyethylene (PE)/ethylene‐vinyl acetate copolymer (EVA)/nanoclay (NC) nanocomposites are investigated by revisiting the interfacial phenomena and miscibility state of the component pairs. The effects of different parameters including the injection molding temperature, mixing sequence in melt‐compounding process, blend composition, and nanoclay loading are studied. A great complexity arises in the filling and cooling process of the injected‐molded parts owing to the phase behavior of the polyolefin blend, crystallization, and morphological changes. The injection molding temperature positively influences the elastic modulus, tensile strength and impact strength of PE/EVA/NC systems through the improvements in the PE/EVA partial miscibility, mutual solubility, and interfacial interactions of PE/clay and PE/EVA pairs. By applying a two‐step mixing process before the injection molding, more nanoclay stacks with smaller thicknesses and larger clay interlayer spacing are formed. The stronger pinning effect of nanoparticles in the second mixing sequence retards the phase separation phenomenon of PE/EVA blend during the cooling stage. As a result of improved mutual PE/EVA solubility, the elastic modulus and tensile strength decrease and the impact resistance increases in the PE‐rich systems. On the other hand, an opposite trend for these properties is found for the EVA‐rich systems.

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Section: Morphological Observationsmentioning

confidence: 99%

Section: Variable No 2: Nanoclay Loadingmentioning

confidence: 99%

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A correlation between morphology and mechanical performance of injected‐molded PE/EVA/clay nanocomposites: Insight into phase miscibility and interfacial phenomena

Hosseiny

Jafari

Khonakdar

et al. 2020

J of Applied Polymer Sci

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“…The conventional packaging materials like HDPE (high‐density polyethylene [PE]), polypropylene (PP), PE terephthalate (PET), etc. though have excellent mechanical and barrier properties 5 but are unhealthy to the environment. They do not have active properties, causing the growth of spoilage and pathogenic microorganisms over the fruits and vegetables packaged into it 6–8 .…”

Section: Introductionmentioning

confidence: 99%

UV‐shielding antimicrobial zein films blended with essential oils for active food packaging

Kaur

Santhiya

2020

J of Applied Polymer Sci

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A comprehensive study on zein film blended with glycerol and essential oils (EOs) is presented in this work. In particular, ultra violet (UV) shielding property and antimicrobial efficacy of developed active zein films (ZF) are tested. The fabricated films show zero transmittance in the UV region as compare to commercial poly‐film which shows 40%–80% of UV transmittance. Results show that films are effective against spoilage microorganisms. The incorporation of EOs in ZF significantly reduces the growth of microbes over fruit samples since day 3. Physical interactions existing between EOs along with glycerol and zein provide considerable barrier properties. The glass transition temperature of the film comes out to be 47.7°C having the tensile strength of 1.21 ± 0.05 MPa. TGA curves show major weight loss in the range of 220–375°C. In conclusion, edible active ZF can be used as healthy packages over food and drug to increase their shelf life.

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“…Recently, nano‐size fillers become popular as they can enhance the properties of polymer without restricting its processability. Commonly used nano‐fillers are carbon nanotubes, graphene and montmorillonite . In the case of wollastonite, it had been used as reinforcing filler in both micro‐ and nano‐size.…”

Section: Introductionmentioning

confidence: 99%

Mechanical properties of wollastonite reinforced thermoplastic composites: A review

et al. 2019

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Wollastonite is a functional filler that has great potential to be used in thermoplastic composites, replacing more expensive reinforcement such as glass fiber. Wollastonite-reinforced polymer composite materials have attracted the attentions from research field and industries due to their biocompatibility and reinforcing ability in polymers. Due to the relatively high aspect ratio and hardness, wollastonite is able to improve the tensile and flexural strength of polymer composites. Many researches have been conducted to determine various properties of wollastonite reinforced polymer composites such as mechanical, flammability, thermal, and tribological properties in order to explore their potential in various applications. This review will focus on mechanical properties of wollastonite reinforced thermoplastic composites. Overall, it can be concluded that the properties of wollastonite-filled polymer composites are the function of filler content, adhesion interactions of wollastonite particles with polymer matrix, size and shape of wollastonite particles.Further research and development are needed to widen its application, and these include the use of nano-size wollastonite which can be produced synthetically as functional filler in thermoplastics. K E Y W O R D Scomposites, mechanical properties, thermoplastic, wollastonite

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Mechanical and Oxygen Barrier Properties of LDPE/MMT/MAPE and LDPE/MMT/EVA Nanocomposite Films: A Comparison Study

Abstract: Enhanced mechanical and barrier properties are of special interest in

Cited by 19 publications

References 30 publications

A correlation between morphology and mechanical performance of injected‐molded PE/EVA/clay nanocomposites: Insight into phase miscibility and interfacial phenomena

A correlation between morphology and mechanical performance of injected‐molded PE/EVA/clay nanocomposites: Insight into phase miscibility and interfacial phenomena

UV‐shielding antimicrobial zein films blended with essential oils for active food packaging

Mechanical properties of wollastonite reinforced thermoplastic composites: A review

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