Characteristics of Polycarbonate Composites with Poly(methyl methacrylate) Grafted Multi-Walled Carbon Nanotubes

Choi, Eun Yeob; Nam, Jeong Ung; Hong, So Hyun; Kim, Chang Keun

doi:10.1007/s13233-018-6022-3

Cited by 8 publications

(2 citation statements)

References 24 publications

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“…After acid treatment, the contents of oxygen atoms increase from 0.42% to 10.73%. The additional binding energies at 286.5 eV and 288.9 eV shown in Figure 2b represent the –C–OH and O–C=O (carboxylic acid) groups, respectively [17,18]. For the amide functionalized MWCNTs shown in Figure 2c, the XPS results show stronger binding energies at 286.2 eV and 288.2 eV that represent C–N and HN–C=O respectively.…”

Section: Resultsmentioning

confidence: 99%

Thermal Conductivity Enhancement Derived from Poly(Methyl Methacrylate)-Grafted Carbon Nanotubes in Poly(Methyl Methacrylate)/Polystyrene Blends

Wie

Kim

2019

Polymers

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This paper presents a method to enhance thermal conductivity using poly(methyl methacrylate)(PMMA), polystyrene(PS) blends, and incorporation of multiwalled carbon nanotubes (MWCNTs). MWCNTs are selectively localized in PMMA phase to improve conductive properties. In addition, Surface of MWCNTs was treated with PMMA to enhance affinity between matrix and filler. PMMA grafting helps filler localization on matrix phase. Composites using two polymers enhanced thermal conductivity by ~11% compared with composites using only PS or PMMA. Also, PMMA grafting on the surface of MWCNTs enhanced thermal conductivity by ~13% compared with samples without PMMA grafting.

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Section: Resultsmentioning

confidence: 99%

Thermal Conductivity Enhancement Derived from Poly(Methyl Methacrylate)-Grafted Carbon Nanotubes in Poly(Methyl Methacrylate)/Polystyrene Blends

Wie

Kim

2019

Polymers

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“…Li found that the tensile strength of HIPS can be increased from 6 kJ/m 2 to 12 kJ/m 2 by adding 2.5 wt.% CNT [11]. Choi et al found that the PMMA-grafted MWNT could improve the mechanical strength and electrical conductivity of polycarbonate (PC) [12]. In this work, PMMA/PHBV/ MWNT composites were prepared by melt blending.…”

Section: Introductionmentioning

confidence: 94%

Toughness Enhancement of Poly(methyl methacrylate) (PMMA)/Poly(3‐hydroxybutyrate‐co‐3‐hydroxyvalerate) (PHBV) Nanocomposites by Multiwall Carbon Nanotubes (MWNT)

2022

Journal of Nanomaterials

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The nanocomposites of PMMA/PHBV filled by MWNT were fabricated by melt blending. The effects of the weight fraction of MWNT on the flow and mechanical properties of the PMMA/PHBV nanocomposites were investigated. The morphologies of fracture surfaces were characterized through scanning electron microscopy (SEM). The impact test results show that the incorporation of 1.5 weight fraction of MWNT increased the impact strength by 42.4%. The flow property and bending strength increased 40.7% and 11%, respectively, by compounding 1.5 weight fraction of MWNT. The morphological behavior indicated transition of fracture surface from brittle nature to ductile. These improved mechanical properties of PMMA/PHBV nanocomposites using MWNT will lead to wider and enhanced applicability of PMMA/PHBV.

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Emerging Research in Conductive Materials for Fused Filament Fabrication: A Critical Review

Simunec¹,

Sola²

2022

Adv Eng Mater

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The progress of Industry 4.0 and the advancement of robotic design are revealing a significant gap in the capabilities of current manufacturing techniques and the selection of materials that are available in electronics. Present‐day electrical systems largely rely on metals, but there is a driving need to develop new electrically conductive objects with a wide range of material properties, including expanded flexibility and softness, and with increasingly complex geometries. Electrically conductive composites can replace traditional metal‐based systems. In particular, thermoplastic composites become electrically conductive with the incorporation of conductive fillers or polymers while retaining to a large extent the processability of the thermoplastic matrix. This is where fused filament fabrication (FFF), an additive manufacturing (AM) technique capable of processing a variety of thermoplastic‐matrix feedstock materials, can be leveraged to create electrically conductive objects with new functionalities. While there is an increasing number of publications describing the FFF of electrical objects such as sensors and circuits, there is no comprehensive review outlining the functioning mechanisms, drawbacks, and advantages of FFF as applied to conductive materials. The present review fills this lacuna by offering a critical analysis of the specific challenges and solutions to promote FFF of electrically conductive polymers and composites.

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Characteristics of Polycarbonate Composites with Poly(methyl methacrylate) Grafted Multi-Walled Carbon Nanotubes

Cited by 8 publications

References 24 publications

Thermal Conductivity Enhancement Derived from Poly(Methyl Methacrylate)-Grafted Carbon Nanotubes in Poly(Methyl Methacrylate)/Polystyrene Blends

Thermal Conductivity Enhancement Derived from Poly(Methyl Methacrylate)-Grafted Carbon Nanotubes in Poly(Methyl Methacrylate)/Polystyrene Blends

Toughness Enhancement of Poly(methyl methacrylate) (PMMA)/Poly(3‐hydroxybutyrate‐co‐3‐hydroxyvalerate) (PHBV) Nanocomposites by Multiwall Carbon Nanotubes (MWNT)

Emerging Research in Conductive Materials for Fused Filament Fabrication: A Critical Review

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