Effect of flake size on thermal properties of graphene oxide/<scp>poly(methyl methacrylate)</scp> composites prepared via <i>in situ</i> polymerization

Zhu, Guangda; Ding, Yong; Zhao, Dan; Jiang, Yu; Jiao, Zheng

doi:10.1002/app.46290

Cited by 5 publications

(2 citation statements)

References 56 publications

(51 reference statements)

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“…Modified Hummers method was used to prepare GO. First, 3 g NaNO 3 and 6 g graphite powder were added into 180 mL H 2 SO 4 (98%) and stirred continuously at 0 °C for 40 min.…”

Section: Methodsmentioning

confidence: 99%

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Construction of electrostatic and π–π interaction to enhance interfacial adhesion between carbon nanoparticles and polymer matrix

Zhao

Jiao

2019

J of Applied Polymer Sci

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In this study, an efficient method by constructing electrostatic and π-π interaction to enhance interfacial adhesion of nanocomposites was contrived. As commercial products and commonly used reinforcements, carbon nanotubes (CNTs) and graphene oxide (GO) were selected as fillers. Two kinds of interactions between carbon nanoparticles and polymer matrix were constructed by adding auxiliary comonomers (ACMs) into nanocomposites, in which one was the electrostatic interaction between quaternary ammonium cationic groups on ACMs as well as oxygen-containing groups of carbon nanoparticles, while the other was the π-π interaction between benzene rings on ACMs and conjugated structure on nanoparticles. Poly(methyl methacrylate) (PMMA) was chosen as a polymer matrix. It was found that carbon nanoparticles dramatically improved properties of nanocomposites, including thermal and mechanical performances due to the construction of electrostatic and π-π interaction on the interface. Compared with PMMA, the tensile strength of CNTs and GO reinforced nanocomposites was improved by 43.1 and 57.5%, respectively. The thermal decomposition temperature of CNTs and GO reinforced nanocomposites was improved by 21 and 23 C, respectively. Interesting and convincing results proved that the construction of multiple interactions can provide a promising method to effectively enhance interfacial adhesion of nanocomposites.

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“…Modified Hummers method was used to prepare GO. First, 3 g NaNO 3 and 6 g graphite powder were added into 180 mL H 2 SO 4 (98%) and stirred continuously at 0 °C for 40 min.…”

Section: Methodsmentioning

confidence: 99%

“…In our previous work, additionally, we added cationic comonomers to introduce electrostatic interaction between polymer matrix and nanoparticles. Various nanoparticles, including SiO 2 , CNTs, and graphene oxide (GO) have been successfully incorporated into the polymer matrix to prepare nanocomposites.…”

Section: Introductionmentioning

confidence: 99%

Construction of electrostatic and π–π interaction to enhance interfacial adhesion between carbon nanoparticles and polymer matrix

Zhao

Jiao

2019

J of Applied Polymer Sci

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Morphology and thermal properties of poly(lactic acid)/poly(3‐hydroxybutyrate‐co‐3‐hydroxyvalerate)/graphene oxide polymeric composites

Mokoena,

Mofokeng

2024

Polymer Engineering & Sci

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Poly(lactic acid) (PLA)/poly (3‐hydroxybutyrate‐co‐3‐hydroxyvalerate) (PHBV) blends are typically phase‐separated, and there is limited research on using graphene oxide (GO) as their matrix filler. PLA/PHBV/GO composites using 1, 3, or 5 wt% GO were prepared by melt mixing, after which their morphology and thermal properties were determined. All the components were hydrophilic (Contact angles less than 90°), and the wetting coefficient value of 3.52 suggested that GO would be dispersed in PLA during surface energy evaluations (SEES). Scanning electron microscopy (SEM) showed that PLA/PHBV blends are immiscible and phase‐separated; however, adding GO brought partial miscibility. Differential scanning calorimetry (DSC) showed that GO plasticized the polymers at lower contents (1 wt%) and inhibited their crystallization at higher contents (3 and 5 wt%). Fourier‐transform infrared spectroscopy (FTIR) measurements showed that a chemical interaction exists between GO and the polymers, and X‐ray diffraction (XRD) results confirmed that GO inhibited crystallization in the polymers at high contents. Adding GO to the polymers generally improved the thermal stability of PLA, verifying the affinity thereof during thermogravimetric (TGA) analyses. Merging of the thermal degradation steps implied that GO induced partial miscibility on polymers. Concurrently, the polymers thermally masked the GO to prolong its lifespan. Composites with 1 wt% GO were the optimal and ideal materials.Highlights Melt mixed PLA/PHBV blends and their composites with GO as a filler. GO brought partial miscibility to the blends and favored the PLA phase. 1 wt% GO contents provide optimal thermal and morphological properties. 3 and 5 wt% GO contents form chemical bonds with the polymers. Initial GO loadings increase the crystallinity of the polymers.

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Microstructure and dielectric properties of bismaleimide composite synergistically modified by graphene oxide and polyetheretherketone

Chen

Tian

Dong

et al. 2020

J Mater Sci: Mater Electron

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Effect of flake size on thermal properties of graphene oxide/poly(methyl methacrylate) composites prepared via in situ polymerization

Cited by 5 publications

References 56 publications

Construction of electrostatic and π–π interaction to enhance interfacial adhesion between carbon nanoparticles and polymer matrix

Construction of electrostatic and π–π interaction to enhance interfacial adhesion between carbon nanoparticles and polymer matrix

Morphology and thermal properties of poly(lactic acid)/poly(3‐hydroxybutyrate‐co‐3‐hydroxyvalerate)/graphene oxide polymeric composites

Microstructure and dielectric properties of bismaleimide composite synergistically modified by graphene oxide and polyetheretherketone

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