Simultaneous improvement in the strength and toughness of polypropylene by incorporating hybrid graphene/CaCO3 reinforcement

Menbari, Saman; Ghasemi, Faramarz Ashenai; Ghasemi, Ismaeil

doi:10.1016/j.polymertesting.2016.07.026

Cited by 25 publications

(14 citation statements)

References 30 publications

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“…After exceeding 1 wt % of AMNs2 content in the blend system, a gradual decrease was observed in the impact strength of the nanocomposites. At above 1 wt % of AMNs2 content, the sheets are closed to each other in the composite, which released stress from the crack tip and thus induce the crack propagation in the system . The impact strength of 1 wt % of AMNs2‐filled composite was also compared with 1 wt % of AMNf‐filled composite.…”

Section: Resultsmentioning

confidence: 96%

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Two‐dimensional mullite nanostructure: Synthesis and reinforcement effect on polypropylene/maleic anhydride graft ethylene vinyl acetate matrix

Varghese

Singh

Vengatesan

et al. 2019

J of Applied Polymer Sci

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In the present work, we studied the reinforcement effect of mullite nanosheets (MNs) on the properties of polypropylene (PP)/maleic anhydride graft ethylene‐vinyl acetate (EVA‐g‐MA) blend matrix. MNs have been prepared in the presence of polyvinylpyrrolidone (PVP) as the macromolecular surfactant through the sol–gel process followed by a thermal annealing method. The sheet‐like morphology of mullite was confirmed by transmission electron microscopy analysis. The surface of the MNs was modified using 3‐aminopropyltriethoxysilane. One weight percent of amine‐functionalized MNs (AMNs) improved the impact strength of PP/EVA‐g‐MA blend matrix, which is about 52%. Melt rheology analysis resulted that the nanocomposite exhibited a viscous behavior up to 2.5 wt % of AMNs and above the content ensued a viscoelastic solid‐like behavior. X‐ray diffraction analysis showed a complete dispersion of AMNs in the PP/EVA‐g‐MA blend matrix. TEM analysis confirmed that the MNs sheets are residing mostly in EVA‐g‐MA phase and the interface of PP/EVA‐g‐MA blend. © 2019 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2019, 136, 48233.

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Section: Resultsmentioning

confidence: 96%

“…Also, the elemental mapping analysis showing the nanosheets agglomeration in 10 wt % filled composite. Similar results are also observed in the PP/CaCO 3 /graphene nanocomposites …”

Section: Resultsmentioning

confidence: 99%

Two‐dimensional mullite nanostructure: Synthesis and reinforcement effect on polypropylene/maleic anhydride graft ethylene vinyl acetate matrix

Varghese

Singh

Vengatesan

et al. 2019

J of Applied Polymer Sci

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“…One of the most frequently utilized method is physically blending with elastomers, including polydimethylsiloxane (PDMS) , ethylene‐octene copolymer (POE) , styrene‐butadiene‐styrene triblock copolymer (SBS) , styrene‐hydrogenated butadiene‐styrene triblock copolymer (SEBS) , ethylene‐propylene‐diene terpolymer (EPDM) , and so on . Fillers and fibers, such as graphene , CaCO 3 , SiO 2 nanoparticles , and glass fibers , also have been introduced to toughen polymer matrix. Besides, the morphology of polymer materials is an efficient way to improve the low temperature toughness.…”

Section: Introductionmentioning

confidence: 99%

Improvement in Low Temperature Izod Impact Strength of SAN/ASA/HNBR Ternary Blends Considering Competing Effects of Glass Transition Temperature and Compatibility

Mao

Zhang

2018

Vinyl Additive Technology

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The competing effects of glass transition temperature (T g ) and compatibility on the low temperature Izod impact toughness of styrene-acrylonitrile copolymer/ acrylonitrile-styrene-acrylate terpolymer (SAN/ASA, 75/25, w/w) blends were investigated by using a series of hydrogenated nitrile butadiene rubbers (HNBRs) with different acrylonitrile (AN) contents. The results showed that the HNBR with AN mass content ranging from 21% to 43% had good compatibility with polymer matrix and exhibited dramatic toughening effect at 25 C. Owing to their low T g s, only the HNBRs (AN = 21% and 25%) remained favorable toughening effect at 0 and −30 C, respectively. Furthermore, the HNBR with 0% AN content was represented by butadiene rubber (BR). Although, BR has an extremely low T g (−94.5 C), it is incompatible with polymer matrix, and then could not toughen the material at three temperatures (−30, 0, and 25 C, respectively). Various characterizations including solubility parameters, scanning electron microscopy (SEM), dynamic mechanical thermal analysis (DMTA), Fourier transform infrared (FTIR) spectroscopy, and so on were carried out to elucidate the toughening mechanism.

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“…Liflerin yanı sıra silika [6], CaCO3 [7], talk [8], kil [9], karbon tüpleri ve grafen gibi [10] dolgu maddeleri PP'nin küresel morfolojik yapısı sebebi ile oluşan mekanik dayanım kayıplarını gidermek için yaygın olarak kullanılmaktadır [11]. Yüzey modifiye dolgu takviyeli PP kompozitler, iyi dispersiyon ve matris ile gelişmiş etkileşim nedeniyle genellikle daha iyi performans gösterir [1].…”

Section: Introductionunclassified

Examination of the effects of CaCO3 reinforced and unreinforced polypropylenes which is substituted with a fine aggregate on traditional concrete properties

Şimşek¹,

Uygunoğlu²

2018

Pamukkale J Eng Sci

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Düşük yoğunluk değerine, yüksek ısı ve korozyon direncine sahip olan polipropilen gittikçe yapı malzemeleri sektörü için daha cazip hale gelmektedir. Bununla birlikte polipropilenin tek başına kullanımı yapı malzemesinin mekanik dayanımını düşürmesi bakımından bazı dezavantajlar içerir. Polipropilenin yapı malzemeleri içerisindeki uygulamalarında bu dezavantajın ortadan kaldırılması için polipropilen kompozitleri tercih edilmektedir. Bu çalışmada, CaCO3 takviyeli polipropilen içeren betonun tanımlanan kalite ölçütleri sırası ile termal iletkenlik, elektrik direnci, 3, 7, 28 gün basınç dayanımları, 28 günlük yarmada çekme dayanımı ve su emme oranı olarak belirlenmiştir. Deneylerde ince agrega yerine %0, %10, %20, %30 ve %40 oranlarında CaCO3 takviyeli polipropilen kullanılmıştır. Dolgulu CaCO3/PP takviyeli beton özellikleri kontrol betonu ile kıyaslandığında %34.5 daha düşük 28 günlük basınç dayanımına, %24.7 oranında daha düşük termal iletkenliğe, %50.7 daha yüksek elektrik direncine sahiptir.Polypropylene with low density and high heat, corrosion resistance is becoming increasingly more attractive for the building materials sector. However, the use of polypropylene alone has some disadvantages in terms of reducing the mechanical strength of the building material. Polypropylene composites are preferred in order to eliminate this disadvantage in polypropylene construction materials applications. In this study, the thermal conductivity, electrical resistance, 3, 7, 28-day compressive strength, 28-day tensile strength and water absorption ratio of concrete containing CaCO3-reinforced polypropylene were determined as quality criteria. In the experiments, 0%, 10%, 20%, 30% and 40% of CaCO3 reinforced polypropylene was used instead of fine aggregate. The reinforced concrete properties of filled CaCO3/PP have a 28 day compressive strength of 34.5% lower than that of the control concrete, 24.7% lower thermal conductivity and 50.7% higher electrical resistance.

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Simultaneous improvement in the strength and toughness of polypropylene by incorporating hybrid graphene/CaCO3 reinforcement

Cited by 25 publications

References 30 publications

Two‐dimensional mullite nanostructure: Synthesis and reinforcement effect on polypropylene/maleic anhydride graft ethylene vinyl acetate matrix

Two‐dimensional mullite nanostructure: Synthesis and reinforcement effect on polypropylene/maleic anhydride graft ethylene vinyl acetate matrix

Improvement in Low Temperature Izod Impact Strength of SAN/ASA/HNBR Ternary Blends Considering Competing Effects of Glass Transition Temperature and Compatibility

Examination of the effects of CaCO3 reinforced and unreinforced polypropylenes which is substituted with a fine aggregate on traditional concrete properties

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