Synergistic Effect of P[MPEGMA-IL] Modified Graphene on Morphology and Dielectric Properties of PLA/PCL Blends

Zhou, Yiyang; Wang, Ping; Ruan, Gang; Xu, Pei; Ding, Yunsheng

doi:10.30919/esmm5f928

Cited by 29 publications

(28 citation statements)

References 38 publications

(43 reference statements)

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“…These befitting merits also make it a potential substitute for the construction of flexible supercapacitor electrodes 17,18 . However, the low electrical conductivity and impoverished mechanical strength of ECHs limit its practical application in flexible electronic equipment 19 . In the process of use, it is affected by some external factors and causes a certain degree of damage to the material, and this slight damage will affect the normal use and reduce the life of the material.…”

Section: Introductionmentioning

confidence: 99%

Ti₃C₂Tx MXenes reinforced PAA/CS hydrogels with self‐healing function as flexible supercapacitor electrodes

Lei

Zhou

et al. 2021

Polymers for Advanced Techs

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Lightweight, thin, and stretchable flexible microelectronic devices have become a new challenge for researchers. To provide power for these conformable devices, it is necessary to design the energy storage device into a flexible and stretchable structure. In this paper, a two‐step method was used to prepare a dual‐physical cross‐linked polyacrylic acid/chitosan/Ti3C2Tx(PCT) conductive hydrogel flexible electrode. The three‐dimensional (3D) porous structure not only offers a good electrical connection, but also saves the use of binder and additional current collector, which helps to enhance the electrochemical properties of electrode. The unique two‐dimensional layered structure of Ti3C2Tx enables the hydrogel electrode to withstand considerable pressure deformation without breaking, and has excellent tensile properties. The flexible electrode exhibited an excellent tensile strength of 0.083 MPa if only introduced 0.31 wt% of Ti3C2Tx with the tensile strain of 158.63% and owned remarkable self‐healing properties after injury. Thereby, the hydrogel electrode renders a maximum capacitance of 291.8 mF g−1 at 0.5 mA/g and a good cycling stability with 64.24% capacitance retention after 2000 charge–discharge cycles. This provides a research and development strategy for binder‐free, non‐toxic, and mini‐size flexible energy storage devices.

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Section: Introductionmentioning

confidence: 99%

Ti₃C₂Tx MXenes reinforced PAA/CS hydrogels with self‐healing function as flexible supercapacitor electrodes

Lei

Zhou

et al. 2021

Polymers for Advanced Techs

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“…For polymeric β nucleating agents, the β nucleation efficiency mainly depends on their dispersibility in iPP matrix, and the toughening effect of rigid organic particles is also closely related to their dispersibility 15‐18 . It should be emphasized that the stronger the interfacial interaction between two phases, the better the dispersibility of the dispersed phase 19‐21 . In addition, the interfacial interaction also has a strong influence on the reinforcing effect of rigid particles on iPP.…”

Section: Introductionmentioning

confidence: 99%

Well dispersion of poly(acrylonitrile‐butadiene‐styrene) in isotactic polypropylene mediated by incorporation of graphene and the elevated toughness

Liu

Zhang

Fang

2021

Polymers for Advanced Techs

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Polymers with benzene rings in structures including polystyrene (PS) and poly(acrylonitrile‐butadiene‐styrene) (ABS) could function as rigid organic particles and macromolecular β nucleating agents to toughen isotactic polypropylene (iPP), and the toughening effect mainly depends on their dispersibility in iPP matrix. In this work, a third component of graphene (G) was introduced into the iPP/PS and iPP/ABS blends, respectively, to mediate the dispersibility of these polymers in the iPP via melt blending. Selective dispersion of graphene in these immiscible blends has been investigated with SEM, DSC, and a rheometer. It was interesting to obtain a more favorable dispersion of ABS in the iPP/ABS/G blend compared with the iPP/ABS blend, and the corresponding toughness showed a prominent improvement accompanied with an elevation in rigidity. The underlying mechanism for the improved dispersion of ABS in the iPP/ABS/G blends has been discussed in detail. However, because of a better affinity of the graphene to the PS than the iPP matrix, graphene could only locate in the PS phase, resulting in poor compatibilization for the iPP/PS blend followed by the deterioration of mechanical properties.

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“…Graphene possesses exceptional mechanical properties, excellent thermal/electrical conductivity as well as large specific surface area. Due to its outstanding multifunctional properties, graphene has received extensive research interests in recent years in multiple fields (Zhao et al, 2019;Jiang et al, 2020;Noorunnisa et al, 2016a;Noorunnisa et al, 2016b;Nidamanuri et al, 2020;Zhao et al, 2020;Zhou et al, 2021). Compared to single-layer graphene, large yield of graphene nanoplatelets (GNP) can be produced from natural graphite precursors at a lower cost (Noorunnisa et al, 2016a).…”

Section: Introductionmentioning

confidence: 99%

Characterizing Biaxially Stretched Polypropylene / Graphene Nanoplatelet Composites

et al. 2021

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In this work, polypropylene (PP) nanocomposites containing different weight concentration of graphene nanoplatelets (GNP) were prepared by melt-mixing using an industrial-scale, co-rotating, intermeshing, twin-screw extruder. The materials were then compression moulded into sheets, and biaxially stretched at different stretching ratios (SRs) below the PP melting temperature. The effects of GNP content and biaxial stretching on the bulk properties of unfilled PP and PP/GNP nanocomposites have been investigated in details. Results show that the addition of GNP (>5wt%) can lead to electrically conductive composites due to the formation of percolation network. The GNP have led to increased polymer crystallinity and enhanced materials stiffness and strength. Biaxial stretching process further enhances the materials mechanical properties but has slightly decreased the composites electrical conductivity. The PP/GNP nanocomposites were also processed into 3D demonstrator parts using vacuum forming, and the properties of which were comparable with biaxially stretched composites.

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Synergistic Effect of P[MPEGMA-IL] Modified Graphene on Morphology and Dielectric Properties of PLA/PCL Blends

Cited by 29 publications

References 38 publications

Ti₃C₂Tx MXenes reinforced PAA/CS hydrogels with self‐healing function as flexible supercapacitor electrodes

Ti₃C₂Tx MXenes reinforced PAA/CS hydrogels with self‐healing function as flexible supercapacitor electrodes

Well dispersion of poly(acrylonitrile‐butadiene‐styrene) in isotactic polypropylene mediated by incorporation of graphene and the elevated toughness

Characterizing Biaxially Stretched Polypropylene / Graphene Nanoplatelet Composites

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Synergistic Effect of P[MPEGMA-IL] Modified Graphene on Morphology and Dielectric Properties of PLA/PCL Blends

Cited by 29 publications

References 38 publications

Ti3C2Tx MXenes reinforced PAA/CS hydrogels with self‐healing function as flexible supercapacitor electrodes

Ti3C2Tx MXenes reinforced PAA/CS hydrogels with self‐healing function as flexible supercapacitor electrodes

Well dispersion of poly(acrylonitrile‐butadiene‐styrene) in isotactic polypropylene mediated by incorporation of graphene and the elevated toughness

Characterizing Biaxially Stretched Polypropylene / Graphene Nanoplatelet Composites

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Ti₃C₂Tx MXenes reinforced PAA/CS hydrogels with self‐healing function as flexible supercapacitor electrodes

Ti₃C₂Tx MXenes reinforced PAA/CS hydrogels with self‐healing function as flexible supercapacitor electrodes