Tensile, fatigue and thermomechanical properties of poly(ethylene-co-vinyl acetate) nanocomposites incorporating low and high loadings of pre-swelled organically modified montmorillonite

Hamid, Asna Rasyidah Abdul; Osman, Azlin Fazlina; Mustafa, Zaleha; Mandal, Saptarshi; Ananthakrishnan, Rajakumar

doi:10.1016/j.polymertesting.2020.106426

Cited by 13 publications

(7 citation statements)

References 23 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The small increase in the basal spacing of bentonite can facilitate the intercalation of the TPS chain during the mixing process and improve the film’s strength. This outcome was the same with the result of Abdul Hamid et al, where they showed that the ultra-sonication process could produce more loosely packed MMT and encourage the copolymer chains’ intercalation inter-platelets [ 29 ].…”

Section: Resultssupporting

confidence: 85%

On the Use of OPEFB-Derived Microcrystalline Cellulose and Nano-Bentonite for Development of Thermoplastic Starch Hybrid Bio-Composites with Improved Performance

et al. 2021

Self Cite

View full text Add to dashboard Cite

Thermoplastic starch (TPS) hybrid bio-composite films containing microcrystalline cellulose (C) and nano-bentonite (B) as hybrid fillers were studied to replace the conventional non-degradable plastic in packaging applications. Raw oil palm empty fruit bunch (OPEFB) was subjected to chemical treatment and acid hydrolysis to obtain C filler. B filler was ultra-sonicated for better dispersion in the TPS films to improve the filler–matrix interactions. The morphology and structure of fillers were characterized by scanning electron microscope (SEM), Fourier transform infrared spectroscopy (FTIR) and X-ray diffraction (XRD). TPS hybrid bio-composite films were produced by the casting method with different ratios of B and C fillers. The best ratio of B/C was determined through the data of the tensile test. FTIR analysis proved the molecular interactions between the TPS and the hybrid fillers due to the presence of polar groups in their structure. XRD analysis confirmed the intercalation of the TPS chains between the B inter-platelets as a result of well-developed interactions between the TPS and hybrid fillers. SEM images suggested that more plastic deformation occurred in the fractured surface of the TPS hybrid bio-composite film due to the higher degree of stretching after being subjected to tensile loading. Overall, the results indicate that incorporating the hybrid B/C fillers could tremendously improve the mechanical properties of the films. The best ratio of B/C in the TPS was found to be 4:1, in which the tensile strength (8.52MPa), Young’s modulus (42.0 MPa), elongation at break (116.4%) and tensile toughness of the film were increased by 92%, 146%, 156% and 338%, respectively. The significantly improved strength, modulus, flexibility and toughness of the film indicate the benefits of using the hybrid fillers, since these features are useful for the development of sustainable flexible packaging film.

show abstract

Section: Resultssupporting

confidence: 85%

On the Use of OPEFB-Derived Microcrystalline Cellulose and Nano-Bentonite for Development of Thermoplastic Starch Hybrid Bio-Composites with Improved Performance

et al. 2021

Self Cite

View full text Add to dashboard Cite

show abstract

“…Interestingly, the addition of a small amount of mineral filler can enhance several properties of a polymer. For instance, the addition of a small amount of nanoclay (montmorillonite) was proved to provide great enhancement in the tensile strength, biostability, and thermal stability of the polyethylene-co-vinyl acetate matrix without reducing its flexibility [ 3 , 37 , 38 , 39 ]. In recent years, we have witnessed the use of dolomite as a mineral filler in the manufacture of composite polymers based on various types of polymer matrices.…”

Section: Fillermentioning

confidence: 99%

“…These can be improved by physical and chemical modification of dolomite. Previously, modified fillers such as nanoclay have shown better interaction with polymers when compared to the use of non-modified fillers [ 38 ]. Silane modification of a talc filler also helps to improve the interaction between matrix and filler [ 68 ].…”

Section: Dolomite As a Filler In A Polymer Compositementioning

confidence: 99%

On the Use of Dolomite as a Mineral Filler and Co-Filler in the Field of Polymer Composites: A Review

et al. 2022

Self Cite

View full text Add to dashboard Cite

Polymers are being used in many applications all around the world. However, there are some drawbacks in the properties of polymers that could hamper their usage in certain applications. Therefore, a new material polymer composite was introduced. A polymer composite is a polymer-based material with the addition of a filler. Many researchers have reported the improvement in the properties of a polymer when a filler was introduced. This helps minimize the disadvantages of using a polymer. As a result, polymer composite products can be used in many industries, such as automobile, aerospace, biomedical, and packaging. Fillers derived from natural minerals, such as dolomite, are among the best reinforcement materials for polymeric materials because they are plentiful and low cost, have high rigidity and hardness, and even have tailorable surface chemistry. The use of dolomite as a filler in a polymer composite system has gained increasing attention in recent years after researchers successfully proved that it is capable of improving the mechanical, physical, and thermal properties of various polymeric materials. However, chemical or physical treatment/modification of raw dolomite is needed in order to prepare it as an efficient reinforcing filler. This procedure helps to improve the performance of the resultant polymer composites. This article reviews the usage of dolomite as a filler in a variety of polymeric materials and how it improved the performance of the polymer composite materials. It also highlights several methods that have been used for the purpose dolomite’s treatment/modification. Furthermore, the role of dolomite as a co-filler or a hybrid filler in a polymer composite system is also discussed, revealing the great potential and prospect of this mineral filler in the field of polymer composites for advanced applications.

show abstract

“…The measurement of the damping behavior is useful to determine the occurrence of molecular mobility transitions, such as the glass transition temperature (T g ) or vicat softening temperature (T Vicat ) of the PECoVA copolymer and its composites. DMA has been increasingly used to study the relationships between the polymer structure, dispersed phase as well as the calcite structure in the properties of polymer composites systems [42,46,47]. The maximum damping capacity (Tan δ max ) and the T Vicat are given in Table 7, while the E' and tan δ curves analyzed by DMA are presented in Figure 10 and Figure 12, respectively.…”

Section: Thermomechanical Analysis By Dynamic Mechanical Analysis (Dma)mentioning

confidence: 99%

“…The maximum damping capacity (Tan δ max ) and the T Vicat are given in Table 7, while the E' and tan δ curves analyzed by DMA are presented in Figure 10 and Figure 12, respectively. The previous researches proved that the thermo-mechanical properties of the given materials are strongly affected by the interfacial adhesion between the polymer-filler and the dispersion of the filler in the polymer matrix [42,46,47]. When comparing the mechanical test (tensile and tear test) and DMA results of the virgin PECoVA, PECoVA/DOL and PECoVA/OMCD composites, one could agree that the treated OMCD filler gives more significant effect to the thermo-mechanical properties than the ambient mechanical properties of the host PECoVA.…”

Section: Thermomechanical Analysis By Dynamic Mechanical Analysis (Dma)mentioning

confidence: 99%

The Mechanical and Thermal Properties of Poly(ethylene-co-vinyl acetate) (PECoVA) Composites with Pristine Dolomite and Organophilic Microcrystalline Dolomite (OMCD)

et al. 2021

Self Cite

View full text Add to dashboard Cite

Poly (ethylene-co-vinyl acetate) (PECoVA) composite containing organophilic microcrystalline dolomite (OMCD) was studied to replace the non-recyclable silicone elastomer in biomedical application. Pristine dolomite (DOL) is an inorganic mineral filler and is hydrophilic in nature, hence incompatible with most polymers and limits its use in biomedical applications. DOL was subjected to a combination of size reduction, tip sonication and a surface modification process to obtain a more effective dolomite filler, known as OMCD, as reinforcement material in the PECoVA copolymer matrix. The effects of DOL and OMCD loadings (1, 3, 5 wt%) on the structure and properties of the PECoVA composite were investigated. According to the X-ray diffraction (XRD), field emission scanning electron microscopy (FESEM), tensile and tear tests, dynamic mechanical analysis (DMA) and differential scanning calorimetry (DSC) analysis, the use of the OMCD filler brought a more pronounced positive impact to the PECoVA matrix as opposed to the DOL, where it enhanced the crystallinity of the matrix and led to much better matrix–filler interfacial interactions. Therefore, regardless of the filler loading, the PECoVA/OMCD composites demonstrate greater mechanical and thermal properties compared to the PECoVA/DOL composites. The best composite was produced with the OMCD loading of 3 wt%, in which the tensile strength (22.1 MPa), elongation at break (1413%) and Young’s modulus (2.0 MPa) of the copolymer matrix were increased by 44%, 23% and 21%, respectively. This proved that the combination of size reduction, tip sonication and the surface modification technique is efficient to obtain the PECoVA/dolomite composite with improved performance.

show abstract

Tensile, fatigue and thermomechanical properties of poly(ethylene-co-vinyl acetate) nanocomposites incorporating low and high loadings of pre-swelled organically modified montmorillonite

Cited by 13 publications

References 23 publications

On the Use of OPEFB-Derived Microcrystalline Cellulose and Nano-Bentonite for Development of Thermoplastic Starch Hybrid Bio-Composites with Improved Performance

On the Use of OPEFB-Derived Microcrystalline Cellulose and Nano-Bentonite for Development of Thermoplastic Starch Hybrid Bio-Composites with Improved Performance

On the Use of Dolomite as a Mineral Filler and Co-Filler in the Field of Polymer Composites: A Review

The Mechanical and Thermal Properties of Poly(ethylene-co-vinyl acetate) (PECoVA) Composites with Pristine Dolomite and Organophilic Microcrystalline Dolomite (OMCD)

Contact Info

Product

Resources

About