Enhanced thermal and mechanical properties of liquid crystalline-grafted graphene oxide-filled epoxy composites

Song, Laifu; Lu, Shaorong; Xiao, Xiane; Qi, Bo; He, Zihai; Xu, Xu; Rao, Binqi; Yu, Jinhong

doi:10.1007/s00289-016-1792-2

Cited by 16 publications

(7 citation statements)

References 52 publications

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“…Song et. al . prepared composites with biphenyl liquid crystalline polyester (BLCP)‐grafted graphene oxides (GO).…”

Section: Resultsmentioning

confidence: 99%

“…In recent decades, liquid crystal polymers as functional materials have become research hotspots . It is noteworthy that polymer composite materials with liquid crystal polymers can improve the mechanical property and thermal property without reducing other properties . The liquid crystal structure in the liquid crystalline polymer can be immobilized in the epoxy network structure during the curing process .…”

Section: Introductionmentioning

confidence: 99%

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The Side‐Chain Liquid Crystalline Epoxy Polymer Grafted Nanoparticles for the Thermal and Mechanical Enhancement of Epoxy Nanocomposites

Shen

Zhang

et al. 2019

ChemistrySelect

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In order to enhance the dispersion and the interface in epoxy nanocomposites filled nanoparticles, a novel side‐chain liquid crystalline epoxy polymer (SLCEP) was synthesized. The SLCEP grafted to alumina (Al2O3) surfaces via the carboxyl group for dispersing nanoparticles, bonded covalently with the epoxy matrix by the epoxy group for interface improvement and maintained good liquid crystal properties by the mesogenic unit. The dispersity of Al2O3 in Al2O3‐SLCEP and epoxy nanocomposites were studied by Fourier transform infrared imaging system and field emission scanning electron microscopy. The interface of epoxy nanocomposites was researched by observing the fracture morphology. By preventing the agglomeration of Al2O3 and strengthening its interfacial bonding with the matrix, the glass transition temperature and thermal stability of Al2O3‐SLCEP/epoxy nanocomposites were improved distinctly, and Al2O3‐SLCEP/epoxy nanocomposites were much superior to neat epoxy in mechanical properties. The excellent performance of SLCEP modified nanoparticles in epoxy demonstrates that is an effective general approach for nanoparticle/polymer.

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“…Song et. al . prepared composites with biphenyl liquid crystalline polyester (BLCP)‐grafted graphene oxides (GO).…”

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

The Side‐Chain Liquid Crystalline Epoxy Polymer Grafted Nanoparticles for the Thermal and Mechanical Enhancement of Epoxy Nanocomposites

Shen

Zhang

et al. 2019

ChemistrySelect

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“…15,16 These outstanding properties have made LCPs a magnificent candidate to be used in various applications. 17 Thermotropic LCPs can be oriented in the form of fibrils, which acts as a self-reinforcement agent in the polymer matrix during the melt mixing process to improve mechanical and thermal stability. 18,19 Now, researchers are attracted towards making LCP/GO based smart and high-performance nanocomposites to enhance mechanical and thermal properties which increase their demand in different areas of applications.…”

Section: Introductionmentioning

confidence: 99%

The effects of functionalized graphene oxide on the thermal and mechanical properties of liquid crystalline polymers

et al. 2022

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“…Song et al . reported that the EP composites reinforced with biphenyl liquid crystalline polyester grafted GOs showed enhanced tensile strength by 55% and increased glass transition temperature ( T g ) by 17.2 °C . Xie et al .…”

Section: Introductionmentioning

confidence: 99%

Mechanical and thermal performances of epoxy resin/graphitic carbon nitride composites

Zhu

Jiao

2019

J of Applied Polymer Sci

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In this paper, a series of graphitic carbon nitride (g-C 3 N 4 ) was synthesized under different thermal oxidation etching temperatures and epoxy/g-C 3 N 4 composites were prepared via solution blending. The morphology and structure of g-C 3 N 4 were investigated by transmission electron microscope, X-ray diffraction (XRD), Fourier transform infrared spectroscopy, and X-ray photoelectron spectroscopy. The tensile fracture morphology and structure of epoxy resin (EP) composites were demonstrated by scanning electron microscopy and XRD, respectively. Mechanical properties of EP composites were characterized by tensile testing, and the thermal performances were investigated by dynamic mechanical thermal analysis and thermal gravimetric analysis. The results revealed that the active groups on g-C 3 N 4 sheets increased under thermal oxidation etching and the C to N ratio of g-C 3 N 4 decreased from 0.94 to 0.76 with the increasing etching temperature. Noticeably, the tensile strength of EP composites was enhanced by 58% with the addition of C 3 N 4 -NS-500 and the thermal properties were also improved significantly, including T 0.5 (the decomposition temperature at the mass loss of 50%) increased by 21.5 C and glass transition temperature improved by 8 C. © 2020 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2020, 137, 48598.

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Enhanced thermal and mechanical properties of liquid crystalline-grafted graphene oxide-filled epoxy composites

Cited by 16 publications

References 52 publications

The Side‐Chain Liquid Crystalline Epoxy Polymer Grafted Nanoparticles for the Thermal and Mechanical Enhancement of Epoxy Nanocomposites

The Side‐Chain Liquid Crystalline Epoxy Polymer Grafted Nanoparticles for the Thermal and Mechanical Enhancement of Epoxy Nanocomposites

The effects of functionalized graphene oxide on the thermal and mechanical properties of liquid crystalline polymers

Mechanical and thermal performances of epoxy resin/graphitic carbon nitride composites

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