Comparative analysis of the mechanical, thermal and barrier properties of polypropylene incorporated with CaCO3 and nano CaCO3

Al-Attar, Fatema; Al-Samhan, Meshal

doi:10.1016/j.surfin.2022.102055

Cited by 13 publications

(9 citation statements)

References 33 publications

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“…Meanwhile, numerous step‐like grooves were observed in the impact section as can be observed in the local magnification, indicative of the ductile fracture of modified iPP. This ductile fracture due to fillers debonding can also be found in the studies of Al‐Samhan and Al‐Attar 50 and Dweiri 51 …”

Section: Resultssupporting

confidence: 70%

High‐quality modification of general polypropylene by the synergistic effect of zinc adipate, hydrotalcite, and polypropylene (SP179)

Shen

Chen

Kou

2023

J of Applied Polymer Sci

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Owing to its excellent mechanical properties and good fluidity, polypropylene (PP) exhibits widespread applications; however, its unsatisfactory impact resistance hinders its further application. In this study, as a β-nucleating agent, zinc adipate (ZnAA) was produced by the solution method. Next, the notch impact strength, melting index, and tensile strength of isotactic polypropylene (iPP) were adopted as indices, and ZnAA, hydrotalcite (HT), and PP (SP179) were added into iPP to modify it and render high performance. Furthermore, the structure and properties of modified PP were investigated by X-ray diffraction, Fourier transform infrared spectroscopy, scanning electron microscopy, and differential scanning calorimetry, as well as on an electronic universal material testing machine and a simple-beam impact testing machine. Finally, the nonisothermal crystallization kinetics of modified iPP was investigated by the Caze method. Results revealed that with the increase in the SP179 content to 50%, the maximum values of the notch impact strength and melting index of iPP of 26.01 KJ m À2 and 9.88 g (10 min) À1 , respectively, are achieved, with a tensile strength of 28.22 MPa, and ZnAA, HT, and PP (SP179) have a synergistic effect on iPP modification. These results suggested that modified PP can be applied in more extensive fields, such as fenders, bumpers, and interior parts, with cost-effectiveness.

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Section: Resultssupporting

confidence: 70%

High‐quality modification of general polypropylene by the synergistic effect of zinc adipate, hydrotalcite, and polypropylene (SP179)

Shen

Chen

Kou

2023

J of Applied Polymer Sci

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“…In particular, their mechanical and durability properties were investigated and they concluded that the use of nanomaterials in cement concrete with the necessary properties of building materials confirmed the feasibility [9]. Investigating the mechanical, thermal, morphological effect of two types of fillers, micro CaCO3 and nano-CaCO3, on Polypropylene (PP) composite material [10], they concluded that the inclusion of nanofillers revealed better thermomechanical properties. In the study conducted with nanocomposites containing calcium carbonate, the change of mechanical properties such as flexural strength, flexural modulus, impact strength was investigated.…”

Section: Introductionmentioning

confidence: 96%

Nükleer Reaktörlerde Nanoparçacık Olarak Kalsiyum Karbonat Kullanımının Araştırılması

Uzun

Genç

Acır

2023

Konya Journal of Engineering Sciences

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In this study, calcium carbonate (CaCO3) was considered as nanoparticle. In the first part of the study, half-value layer (HVL) and mean free path (MFP) values, which are radiation shielding parameters, were investigated in determined energy ranges by Phy-X open access software. At increasing energy levels, the HVL value reached approximately 10 cm, while the MFP value reached approximately 17 cm. In the second part of the study, the reactor core geometry was modeled with the MCNP code and then the relative power distribution values were determined. COBRA code input was prepared with the determined relative power distribution values and thermal analyzes were made. These analyzes were performed for three different nanoparticle ratios. As a result of the analysis, the temperature value at the end of the channel was 613 K when only water was used as a coolant, while the temperature value at the end of the channel was 611.19 K when 0.03% nanoparticles were used. Although the coolant temperature increased with the nanoparticle ratio, it was observed that the temperature decreased when only water was used.

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“…PP has been melt blended with clays [ 19 , 20 , 21 ], CaCO 3 [ 8 , 22 , 23 , 24 , 25 ], talc [ 26 , 27 , 28 , 29 ], mica [ 30 , 31 ], kaolin [ 28 , 32 , 33 , 34 ], and other mineral fillers [ 35 , 36 ] typically used in the polymer composites industry. Talc and CaCO 3 are among the most preferred fillers used to produce PP compounds.…”

Section: Introductionmentioning

confidence: 99%

Engineering Polypropylene–Calcium Sulfate (Anhydrite II) Composites: The Key Role of Zinc Ionomers via Reactive Extrusion

et al. 2023

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Polypropylene (PP) is one of the most versatile polymers widely used in packaging, textiles, automotive, and electrical applications. Melt blending of PP with micro- and/or nano-fillers is a common approach for obtaining specific end-use characteristics and major enhancements of properties. The study aims to develop high-performance composites by filling PP with CaSO4 β-anhydrite II (AII) issued from natural gypsum. The effects of the addition of up to 40 wt.% AII into PP matrix have been deeply evaluated in terms of morphology, mechanical and thermal properties. The PP–AII composites (without any modifier) as produced with internal mixers showed enhanced thermal stability and stiffness. At high filler loadings (40% AII), there was a significant decrease in tensile strength and impact resistance; therefore, custom formulations with special reactive modifiers/compatibilizers (PP functionalized/grafted with maleic anhydride (PP-g-MA) and zinc diacrylate (ZnDA)) were developed. The study revealed that the addition of only 2% ZnDA (able to induce ionomeric character) leads to PP–AII composites characterized by improved kinetics of crystallization, remarkable thermal stability, and enhanced mechanical properties, i.e., high tensile strength, rigidity, and even rise in impact resistance. The formation of Zn ionomers and dynamic ionic crosslinks, finer dispersion of AII microparticles, and better compatibility within the polyolefinic matrix allow us to explain the recorded increase in properties. Interestingly, the PP–AII composites also exhibited significant improvements in the elastic behavior under dynamic mechanical stress and of the heat deflection temperature (HDT), thus paving the way for engineering applications. Larger experimental trials have been conducted to produce the most promising composite materials by reactive extrusion (REx) on twin-screw extruders, while evaluating their performances through various methods of analysis and processing.

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Comparative analysis of the mechanical, thermal and barrier properties of polypropylene incorporated with CaCO3 and nano CaCO3

Cited by 13 publications

References 33 publications

High‐quality modification of general polypropylene by the synergistic effect of zinc adipate, hydrotalcite, and polypropylene (SP179)

High‐quality modification of general polypropylene by the synergistic effect of zinc adipate, hydrotalcite, and polypropylene (SP179)

Nükleer Reaktörlerde Nanoparçacık Olarak Kalsiyum Karbonat Kullanımının Araştırılması

Engineering Polypropylene–Calcium Sulfate (Anhydrite II) Composites: The Key Role of Zinc Ionomers via Reactive Extrusion

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