Manipulation of the thermal/mechanical properties of the fiber/polymer interface in PA6/epoxy composite via uniform/un-uniform colloidal stamping of silica/hollow graphene oxide nanoparticles

Rashidi, Omid; Sharifzadeh, Esmail

doi:10.1007/s00396-022-05030-9

Cited by 5 publications

(4 citation statements)

References 39 publications

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“…It is important to have an optimum polymer/NP interphase/adhesion region to overcome agglomeration, which is one of the major challenges in the homogenous dispersion of NPs in a polymer blend. Agglomeration not only affects the performance and mechanical properties, but weak adhesion between the polymer and the agglomerated NPs can lead to composite failure due to the concentration of exerted force on weak spots [ 100 , 101 , 102 ]. Ashraf et al showed that two grams of well dispersed and isolated 10 nm radius NPs can produce a remarkable interfacial area of 250 m 2 within a polymer matrix [ 103 ].…”

Section: Introductionmentioning

confidence: 99%

Advanced Polymeric Nanocomposite Membranes for Water and Wastewater Treatment: A Comprehensive Review

Sahu¹,

Dosi

Kwiatkowski

et al. 2023

Polymers

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Nanomaterials have been extensively used in polymer nanocomposite membranes due to the inclusion of unique features that enhance water and wastewater treatment performance. Compared to the pristine membranes, the incorporation of nanomodifiers not only improves membrane performance (water permeability, salt rejection, contaminant removal, selectivity), but also the intrinsic properties (hydrophilicity, porosity, antifouling properties, antimicrobial properties, mechanical, thermal, and chemical stability) of these membranes. This review focuses on applications of different types of nanomaterials: zero-dimensional (metal/metal oxide nanoparticles), one-dimensional (carbon nanotubes), two-dimensional (graphene and associated structures), and three-dimensional (zeolites and associated frameworks) nanomaterials combined with polymers towards novel polymeric nanocomposites for water and wastewater treatment applications. This review will show that combinations of nanomaterials and polymers impart enhanced features into the pristine membrane; however, the underlying issues associated with the modification processes and environmental impact of these membranes are less obvious. This review also highlights the utility of computational methods toward understanding the structural and functional properties of the membranes. Here, we highlight the fabrication methods, advantages, challenges, environmental impact, and future scope of these advanced polymeric nanocomposite membrane based systems for water and wastewater treatment applications.

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Section: Introductionmentioning

confidence: 99%

Advanced Polymeric Nanocomposite Membranes for Water and Wastewater Treatment: A Comprehensive Review

Sahu¹,

Dosi

Kwiatkowski

et al. 2023

Polymers

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“…[12][13][14] The direct impact of physical/mechanical characteristics of the polymer/particle interface is negligible in macro/micro-polymer composites because of the significantly small interface-to-particle size ratio. [15,16] On the other hand, it is reported that the thickness of the formed interphase cannot exceed several nanometers and accordingly, it is impossible to neglect the interfaceto-particle size ratio in polymer nanocomposites, including particles with a characteristic length of less than 100 nm. [17][18][19] This can be introduced as the main difference between the physical/mechanical characteristics of polymer micro/macro-composites and nanocomposites containing similar constituents.…”

Section: Introductionmentioning

confidence: 99%

A novel strategy to predict the tensile strength of polymer/particle interphase based on De Gennes's self‐similar carpet theory

Ader

Sharifzadeh

Azimi

2023

Polymer Engineering & Sci

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The formation of polymer/particle interphase region besides affecting most of the mechanical characteristics of polymer nanocomposites also alters some of their physical properties. The physical/mechanical properties inside the interphase may change based on a specific pattern (e.g., linear, exponential, etc.). De Gennes's self‐similar carpet theory represents a unique definition for the concentration variation of the adsorbed polymer chains. Accordingly, this specific pattern was developed to predict the tensile strength of the polymer/particle interphase region based on the molecular characteristics of the matrix and polymer/particle compatibility. In addition, Pukanszky's model was developed to define the characteristics of the aggregates/agglomerates using the results of De Gennes's theory. Different high‐density polyethylene (HDPE) nanocomposite samples, containing compatibilized silica nanoparticles, were prepared and subjected to the tensile and field emission scanning electron microscopy (FE‐SEM) tests. Moreover, other data from the literature were used to further investigate the accuracy of the proposed model. It was revealed that considering the gyration radius of the polymer chains as the maximum interphase thickness and the scaling parameter as 0.49 provides accurate predictions. On the other hand, the obtained data regarding the average content and size of nanoparticle aggregates/agglomerates also were in good agreement with the actual results.

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“…Theoretically, Janus particles, characterized by the amphiphilic and asymmetric nature, [33,34] can synchronously achieve the high dispersion extent and the strong chemical linkage via modifying the organic segments (e. g., short carbon chains) on one side of nanofillers (especially for nanosheets) and the reactive functional groups on the other side, respectively. Although amphiphilic Janus nanosheets have been extensively used as compatibilizers up to date, to stabilize the immiscible blends of two different polymers, reduce their interfacial tensions and strengthen the interfacial interactions, [35][36][37][38][39][40][41][42][43][44][45][46] remarkably little is known about the effect of Janus nanosheets with dual functional groups on the mechanical properties of epoxy nanocomposites. In particular, how Janus nanosheets modified with both short aliphatic chains and reactive functional groups affect the formation and property of nanosheet/epoxy nanocomposite is virtually unknown.…”

Section: Introductionmentioning

confidence: 99%

Improving the Fracture Toughness and Strength of Epoxy Resin Using NH₂‐silica‐C₈H₁₇ Janus Nanosheets

Liu,

Zhu,

Zhang

et al. 2023

ChemistrySelect

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In this work, a NH2‐silica‐C8H17 Janus nanosheet with short n‐octyl chains on one side and aminopropyl groups on the opposite side was prepared by the sol‐gel method. This nanosheet was used to improve the toughness and strength of epoxy resin. The morphologies and structures of Janus nanosheets and the properties of NH2‐silica‐C8H17/epoxy nanocomposites were characterized. Results show that the addition of Janus nanosheets not only increases the storage modulus and glass transition temperature of nanocomposites, but also improves their mechanical performance and thermal stability. The tensile strength, elongation at break, fracture toughness and impact strength of nanocomposites are increased by ca. 57, 80, 74 and 63 %, respectively, at the 0.5 wt.% loading of Janus nanosheets. These findings suggest that NH2‐silica‐C8H17 Janus nanosheets exert an effective influence on the toughness and strength of ultimate nanocomposites, which is attributed to the fact that NH2‐silica‐C8H17 Janus nanosheet simultaneously contains n‐octyl and aminopropyl groups on both sides, thus improving the nanosheet/matrix interface adhesion.

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Manipulation of the thermal/mechanical properties of the fiber/polymer interface in PA6/epoxy composite via uniform/un-uniform colloidal stamping of silica/hollow graphene oxide nanoparticles

Cited by 5 publications

References 39 publications

Advanced Polymeric Nanocomposite Membranes for Water and Wastewater Treatment: A Comprehensive Review

Advanced Polymeric Nanocomposite Membranes for Water and Wastewater Treatment: A Comprehensive Review

A novel strategy to predict the tensile strength of polymer/particle interphase based on De Gennes's self‐similar carpet theory

Improving the Fracture Toughness and Strength of Epoxy Resin Using NH₂‐silica‐C₈H₁₇ Janus Nanosheets

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Manipulation of the thermal/mechanical properties of the fiber/polymer interface in PA6/epoxy composite via uniform/un-uniform colloidal stamping of silica/hollow graphene oxide nanoparticles

Cited by 5 publications

References 39 publications

Advanced Polymeric Nanocomposite Membranes for Water and Wastewater Treatment: A Comprehensive Review

Advanced Polymeric Nanocomposite Membranes for Water and Wastewater Treatment: A Comprehensive Review

A novel strategy to predict the tensile strength of polymer/particle interphase based on De Gennes's self‐similar carpet theory

Improving the Fracture Toughness and Strength of Epoxy Resin Using NH2‐silica‐C8H17 Janus Nanosheets

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Product

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Improving the Fracture Toughness and Strength of Epoxy Resin Using NH₂‐silica‐C₈H₁₇ Janus Nanosheets