Fabrication of fullerene-decorated graphene oxide and its influence on flame retardancy of high density polyethylene

Guo, Zhenghong; Ye, Runfeng; Zhao, Liping; Ran, Shiya; Fang, Zhengping; Li, Juan

doi:10.1016/j.compscitech.2016.04.024

Cited by 27 publications

(12 citation statements)

References 18 publications

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“…Nevertheless, a challenging task for this field is fabrication of UHMWPE nanocomposites with uniformly dispersed fillers . Polyolefin nanocomposites can be conceptually fabricated by solution compounding, melt blending, and in situ polymerization . However, UHMWPE, due to a lack of flowability and an appropriate solvent, can be produced by two former methods.…”

Section: Introductionmentioning

confidence: 99%

SiO₂‐covered graphene oxide nanohybrids for in situ preparation of UHMWPE/GO(SiO₂) nanocomposites with superior mechanical and tribological properties

Haddadi

Ramazani

Kheradmand

et al. 2019

J of Applied Polymer Sci

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The modified Hummer technique was used in the preparation of graphene oxide (GO) nanosheets, and then SiO2 decorated GO [GO(SiO2)] nanosheets were synthesized via the sol–gel method. Then, ultrahigh‐molecular‐weight polyethylene (UHMWPE) nanocomposites loaded with 0.5, 1, 1.5, and 2 wt % of GO(SiO2) were prepared using magnesium ethoxide/GO(SiO2)‐supported Ziegler–Natta catalysts via the in situ polymerization. Morphological study of the prepared polymer powders was assessed using field‐emission scanning electron microscopy, which showed that GO(SiO2) nanohybrids have been uniformly dispersed and distributed into the UHMWPE matrix. Also, the neat UHMWPE and its nanocomposites were evaluated with different analyses, including viscosity‐average molecular weight measurement, differential scanning calorimetry, thermogravimetric analysis, tensile test, scratch hardness, and pin‐on‐disk test. The characterization of the UHMWPE nanocomposites indicated that many characterizations, including the mechanical, thermal, and tribological properties of UHMWPE, were significantly improved by incorporation of these new nanosheets in spite of the molecular weight reduction of the polymeric matrix and the improved flowability and processability of the produced nanocomposite. © 2019 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2019, 136, 47796.

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Section: Introductionmentioning

confidence: 99%

SiO₂‐covered graphene oxide nanohybrids for in situ preparation of UHMWPE/GO(SiO₂) nanocomposites with superior mechanical and tribological properties

Haddadi

Ramazani

Kheradmand

et al. 2019

J of Applied Polymer Sci

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“…Therefore, it would be interesting if these flame retarding mechanisms of C 60 and graphene can be synergistically applied into polymer. Fang and his coworkers combined GO and C 60 to obtain nanohybrid, and it largely improved the flame retardancy and thermal stability of HDPE [ 29 ]. However, to date, all these C 60 -related nanomaterials were incorporated into thermoplastic resins, while no researcher investigates their flame retardant effect and mechanism in thermosetting resins.…”

Section: Introductionmentioning

confidence: 99%

Fabrication of Fullerene Anchored Reduced Graphene Oxide Hybrids and Their Synergistic Reinforcement on the Flame Retardancy of Epoxy Resin

Wang

Zhuo

et al. 2018

Nanoscale Res Lett

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A C60-PEI-rGO hybrid was prepared by incorporating the fullerene (C60) on the surface of PEI-modified reduced graphene oxide (rGO) and then used to modify the epoxy (EP) resin. Subsequently, the structure of GO and C60-PEI-rGO hybrid were well characterized, showing that the C60 was homogenously anchored on the surface of PEI-rGO. The flame retardancy, mechanical properties, and thermal stability of as-prepared C60-PEI-rGO/EP nanocomposites were systematically investigated. Results show that the C60-PEI-rGO hybrid exhibits high flame retarding efficiency for EP. Specifically, the time to ignition of epoxy increases from 68 to 89 s with the addition of 1.0 wt% C60-PEI-rGO, which are unusual in polymer nanocomposites. In the meantime, the peaks of the heat release rate and total heat release of the modified epoxy reduce by 40.0% and 15.6%, respectively. The synergistic flame retardant mechanism of C60-PEI-rGO to EP is attributed to its unique structure combining both the high efficiency in capturing free radicals by C60, the barrier effect of layered of rGO and increase of crosslinking density of epoxy. It is shown that the thermal stability and mechanical properties of epoxy are simultaneously improved with the addition of C60-PEI-rGO. This work may pioneer a new and efficient method to fabricate fire retardant thermosetting resins with simultaneously other improved properties.Electronic supplementary materialThe online version of this article (10.1186/s11671-018-2678-z) contains supplementary material, which is available to authorized users.

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“…The field application effect and promotional value are remarkable. In the Zhucun mine of Jiaozuo mining area, the paste filling mining technique is applied to mining coal under villages [79]. The thickness of coal mining is 1.3 m and the full filling is adopted.…”

Section: Applied Results Of Mining Techniquesmentioning

confidence: 99%

“…According to the different filling materials, a variety of filling mining techniques, such as solid [4,14], paste [51,79], and high water material [21], have been developed. However, the high cost, increased process flow, and low production efficiency have restricted its application.…”

Section: Subsidence Reduction Miningmentioning

confidence: 99%

Sustainable Development of Resources and the Environment: Mining-Induced Eco-Geological Environmental Damage and Mitigation Measures—A Case Study in the Henan Coal Mining Area, China

Guo

Tan

et al. 2019

Sustainability

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Coal is an important resource that has supported China’s economic development. This situation is expected to continue in the immediate future. However, coal mining has also led to serious environmental disasters in some mining areas. Henan Province is one of the 14 large-scale coal bases that are planned by the Chinese state. It is located in the transitional zone between the second and third terrain ladders of China and spans two tectonic units. The geological features and ecological environmental characteristics display wide spatial variations throughout this district, which is an ecologically fragile region of stepped transition type. However, large-scale, extremely intense coal mining activities will inevitably lead to further deterioration of the already fragile ecological and geological (eco-geological) environment, which makes recovery increasingly difficult. Based on the condition of the eco-geological environment and the coal mining industry in the Henan mining area, the mechanisms by which mining-induced damage can occur were analyzed. The characteristics and status of the destruction of ground structures, land resources, water resources, the atmospheric environment, and natural ecology are discussed in this paper. Appropriate mitigation measures are proposed based on the findings. This mainly includes: management practices to prevent and mitigate damage throughout all stages of mining; adoption of mining techniques that will control damage at the source; and, the adoption of appropriate post-mining recovery technologies. The analysis of mining-induced eco-geological environmental damage and mitigation measures is of importance for the prevention of eco-geological disasters, and the promotion of efficient and environmentally sustainable exploitation of coal resources.

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Fabrication of fullerene-decorated graphene oxide and its influence on flame retardancy of high density polyethylene

Cited by 27 publications

References 18 publications

SiO₂‐covered graphene oxide nanohybrids for in situ preparation of UHMWPE/GO(SiO₂) nanocomposites with superior mechanical and tribological properties

SiO₂‐covered graphene oxide nanohybrids for in situ preparation of UHMWPE/GO(SiO₂) nanocomposites with superior mechanical and tribological properties

Fabrication of Fullerene Anchored Reduced Graphene Oxide Hybrids and Their Synergistic Reinforcement on the Flame Retardancy of Epoxy Resin

Sustainable Development of Resources and the Environment: Mining-Induced Eco-Geological Environmental Damage and Mitigation Measures—A Case Study in the Henan Coal Mining Area, China

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Fabrication of fullerene-decorated graphene oxide and its influence on flame retardancy of high density polyethylene

Cited by 27 publications

References 18 publications

SiO2‐covered graphene oxide nanohybrids for in situ preparation of UHMWPE/GO(SiO2) nanocomposites with superior mechanical and tribological properties

SiO2‐covered graphene oxide nanohybrids for in situ preparation of UHMWPE/GO(SiO2) nanocomposites with superior mechanical and tribological properties

Fabrication of Fullerene Anchored Reduced Graphene Oxide Hybrids and Their Synergistic Reinforcement on the Flame Retardancy of Epoxy Resin

Sustainable Development of Resources and the Environment: Mining-Induced Eco-Geological Environmental Damage and Mitigation Measures—A Case Study in the Henan Coal Mining Area, China

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SiO₂‐covered graphene oxide nanohybrids for in situ preparation of UHMWPE/GO(SiO₂) nanocomposites with superior mechanical and tribological properties

SiO₂‐covered graphene oxide nanohybrids for in situ preparation of UHMWPE/GO(SiO₂) nanocomposites with superior mechanical and tribological properties