Compatibilized polylactide/polyamide 11 blends containing multiwall carbon nanotubes: Morphology, rheology, electrical and mechanical properties

Mousavi, Zeinab; Heuzey, Marie‐Claude; Carreau, Pierre J.

doi:10.1016/j.polymer.2023.125906

Cited by 3 publications

(2 citation statements)

References 48 publications

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“…Compatibilizing additives are highly needed in the vast majority of cases to enhance compatibility between the components in various plastic and rubber composites and blends [ [1] , [2] , [3] , [4] , [5] , [6] , [7] , [8] , [9] , [10] , [11] ]. More advantageous mechanical, thermal and rheological properties can be achieved through compatibilization in a composite due to the improved interactions and solubility during product development, whether it concerns original or waste raw materials [ [12] , [13] , [14] , [15] , [16] , [17] ]. Commercial compatibilizing additives and coupling agents can be categorized into two main groups based on their chemical structures: silane-type and maleic anhydride (MA) containing polymer-type [ [18] , [19] , [20] , [21] , [22] , [23] ].…”

Section: Introductionmentioning

confidence: 99%

FT-IR combined with oscillatory rheology: How to evaluate chemical structure of ester derivatives of MA-containing compatibilizers

Varga,

Simon-Stőger

2024

Heliyon

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Section: Introductionmentioning

confidence: 99%

FT-IR combined with oscillatory rheology: How to evaluate chemical structure of ester derivatives of MA-containing compatibilizers

Varga,

Simon-Stőger

2024

Heliyon

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“…Baudouin et al 8 later examined the compatibilizing effects of CNTs in polyamide/ethylenemethacrylate polymer blends (PA/EMA) through interfacial localization, which led to a finely dispersed structure. The CNT localized at the interface reduces the coalescence rate by acting as a rigid wall and kinetically suppresses the coalescence, which leads to a finer morphology 9–13 . Alternatively, CNTs can be surface functionalized to react with one of the components of the blend and form a network‐like structure 14 .…”

Section: Introductionmentioning

confidence: 99%

Comparing the morphological evolution of reactive and nonreactive Polystyrene/Polypropylene polymer blends: Processing phase inversion

Ramakrishnan,

Lencar,

Mohseni

et al. 2024

Polymer Engineering & Sci

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This paper discusses the evolution of morphology in 80/20 (vol/vol) (polypropylene‐maleic anhydride)/polypropylene (PP)/(polystyrene‐oxazoline)/polystyrene (PS) reactive blends and nonreactive 80/20 PP/PS blends. For both the blends, the PS forms the continuous phase initially, traps the PP‐maleic anhydride or PP pellets within, and gradually deforms these pellets to lamellar sheets and elongated fibers. Eventually, the irregular domains of PP coalesce and invert to form the continuous phase in a transition known as the “processing phase inversion.” The nonreactive PP/PS blend needed much higher torque to be deformed from pellets to a viscoelastic melt than their reactive counterparts. Despite the significant differences in their processing energy, the reactive and nonreactive blends have similar morphologies during the inversion process. The changes in the structure of the blends were captured on video by a custom‐built visualization system and correlated with scanning electron microscopy of the fractured surfaces, along with monitoring the changes in the torque levels during the processing. The solid‐state properties of the minor phase were crucial for deforming the major phase pellets and, consequentially, the work required to process the blends. Due to a suppression of coalescence due to the presence of in situ formed copolymers at the interface of the PP/PS, a finer dispersion was obtained in the case of the reactive blend systems.Highlights Visualization of polymer melt blending. In situ reaction during processing. Processing energy requirements during blending.

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Simultaneous improvement of tensile strength and toughness of polylactic acid by incorporating a biodegradable core‐shell nanofiller with double polymer layers

Gao,

Peng,

Deng

et al. 2024

Polymer Composites

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While blending with flexible polymers has been a commonly employed strategy to enhance the toughness of polylactic acid (PLA), it's still a great challenge to avoid the sacrifice of tensile strength at the same time. In this work, we demonstrate a promising route to simultaneously improve the strength and toughness of PLA by compounding PLA with poly(ε‐caprolactone) (PCL) and PLA grafted multi‐walled carbon nanotubes core‐shell nanofiller (MWNT‐PCLPLA) via a two‐step ring‐opening polymerization and have analyzed the strengthening and toughening mechanism through molecular dynamics simulation. The double polymer layers of MWNT‐PCLPLA effectively improve the interfacial interaction between MWNTs and the matrix, in which the outer PLA layer has the same molecular structure with the matrix and facilitates stress transfer, while the flexible PCL layer can absorb energy through self‐deformation and induce local plastic deformation of the matrix. When the content of MWNTs was only 1 wt%, the strength and elongation at break of PLA/MWNT‐PCLPLA nanocomposites were increased by 47.92% and 690.11% compared to neat PLA. Furthermore, the toughness of nanocomposites reached 11.93 MJ/m3, which is about 16 times that of neat PLA. This novel core‐shell nanofiller with double polymer layers is expected to be further applied in other polymer systems.Highlights A core‐shell nanofiller with double polymer layers was synthesized. Improved dispersion and interfacial compatibility of nanofillers in matrix. The crystallization ability of PLA was improved by functionalized MWNTs. Simultaneously improved strength and toughness of PLA/MWNT‐PCLPLA nanocomposite.

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Compatibilized polylactide/polyamide 11 blends containing multiwall carbon nanotubes: Morphology, rheology, electrical and mechanical properties

Cited by 3 publications

References 48 publications

FT-IR combined with oscillatory rheology: How to evaluate chemical structure of ester derivatives of MA-containing compatibilizers

FT-IR combined with oscillatory rheology: How to evaluate chemical structure of ester derivatives of MA-containing compatibilizers

Comparing the morphological evolution of reactive and nonreactive Polystyrene/Polypropylene polymer blends: Processing phase inversion

Simultaneous improvement of tensile strength and toughness of polylactic acid by incorporating a biodegradable core‐shell nanofiller with double polymer layers

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