Effect of particle size and grafting density on the mechanical properties of polymer nanocomposites

Chao, Huikuan; Riggleman, Robert A.

doi:10.1016/j.polymer.2013.07.018

Cited by 87 publications

(68 citation statements)

References 47 publications

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“…Ti 5 UiO-66's distinct metal nodes moderate the terminal grafting density with PIM-1, necessary for the observed enhancement in mechanical properties. 50,[66][67][68] Strong additive interactions can reinforce polymer matrices, 12 but can also cause conformation changes to the polymer that…”

Section: Nano-additive Compatibilitymentioning

confidence: 99%

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Physical aging in glassy mixed matrix membranes; tuning particle interaction for mechanically robust nanocomposite films

et al. 2016

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Despite the exceptional separation performance of modern glassy mixed matrix membranes, these materials are not being utilized to improve the performance of existing membrane technologies. Nano-sized additives can greatly enhance separation performance, and have recently been used to overcome age-related performance loss of high performance MMMs. However nano-additives also compromise the structural integrity of films and little is known on how physical aging affects their mechanical properties over time. A solution for both physical aging and mechanical instability is required before these high performance materials can be utilised in industrial membrane applications. Here, we examine physical aging in mixed matrix membranes through mechanical properties and single gas permeation measurements using three glassy polymers, Matrimid® 5218, poly-1-trimethylsilyl-1-propyne (PTMSP), and a Polymer of Intrinsic Microporosity (PIM-1); and a range of nano-scale additives; Silica, PAF-1, UiO-66, and Ti5UiO-66, each previously shown to enhance gas separation performance. We find polymer-additive interactions strongly influence local physical aging and play a key role in determining the overall material properties of glassy nanocomposite films. Strong interface interactions can slow physical aging, and may not correlate to reinforced or age-stable films. Whereas traditionally 'incompatible' nanocomposites exhibit mechanical properties that can improve over time and even outperform their native polymers.Tuning polymer-additive interactions is vital to achieving the physical aging, mechanical stability, and permselectivity requirements of advanced mixed matrix membrane technologies and reducing the enormous global energy cost of separation processes.

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Section: Nano-additive Compatibilitymentioning

confidence: 99%

“…Interestingly, additive interactions with chain terminal groups appear to reinforce nanocomposite films, whereas strong side group interactions seem to compromise mechanical performance; highlighting the influence of additive interactions on polymer conformation. 20,23,50,67 …”

Section: Figmentioning

confidence: 99%

Physical aging in glassy mixed matrix membranes; tuning particle interaction for mechanically robust nanocomposite films

et al. 2016

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“…The size dependency of the nano-filler, which is the most important mechanism of polymer nanocomposites, is being investigated through the all-atom model [5][6][7][8]; Chao et al [9] analyzed the tendency of the grafted nano particle for Fig. 7 Flow chart of the IBI method size dependency with the CG model, and Fig.…”

Section: Current Molecular Dynamics Modelsmentioning

confidence: 99%

Recent Studies on the Multiscale Analysis of Polymer Nanocomposites

Chung

Cho

2019

Multiscale Sci. Eng.

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Ever since several formations of polymer-based nanocomposites were reported, research on their modeling, characterization, and computerized analysis methodology has been extensively investigated to become a major academic field of advanced material science and technology. This paper mainly summarizes the multiscale computational analysis methodology for polymer nanocomposites. We also introduce various computational modeling approaches to characterizing the physical behavior of polymer nanocomposites, which are the molecular dynamics approach, and the continuum approach. Based on the various computational analyses, we summarize how the material properties and phenomenological behaviors of polymer nanocomposites were analyzed.

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“…Contribution from particleparticle interactions has also been proposed to explain viscoelastic behavior of rubbers [85] and deformation response of polymer nanocomposites [86]. The first one, related to replacing portion of low stiffness polymer with more rigid particles, is size independent.…”

Section: Reinforcing Mechanisms At Multiple Length Scalesmentioning

confidence: 99%

Composite materiomics

Jančář

2015

Multifunctionality of Polymer Composites

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Effect of particle size and grafting density on the mechanical properties of polymer nanocomposites

Cited by 87 publications

References 47 publications

Physical aging in glassy mixed matrix membranes; tuning particle interaction for mechanically robust nanocomposite films

Physical aging in glassy mixed matrix membranes; tuning particle interaction for mechanically robust nanocomposite films

Recent Studies on the Multiscale Analysis of Polymer Nanocomposites

Composite materiomics

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