Tribological and mechanical investigation of MC nylon reinforced by modified graphene oxide

Pan, Bingli; Zhang, Shupeng; Li, Wen-Zhong; Zhao, Jing; Liu, Jinlong; Zhang, Yuqing; Zhang, Yongzhen

doi:10.1016/j.wear.2012.07.032

Cited by 123 publications

(64 citation statements)

References 38 publications

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“…However, the result of the tensile strength is not superior to that reported in the aforementioned Ref. [13].…”

Section: Mechanical Properties Of the Compositescontrasting

confidence: 70%

“…With the incorporation of 1 wt% POSS-modified graphene, the glass transition temperature of PMMA increased 10°C. Pan et al [13] used octadecylamine to modify GO, and eventually prepared MC nylon/modified GO composite, and the results showed that the wear rate and friction coefficient of MC nylon were reduced by 92 and 14 % respectively, and the tensile strength of MC nylon composites increases by 11 wt% only with 0.05 wt% of the modified GO. The above studies about GO modification have played a certain enlightening and leading role for the preparation of MC nylon composites.…”

Section: Introductionmentioning

confidence: 99%

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In situ polymerization to prepare graphene-toughened monomer cast nylon composites

et al. 2015

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Cetyltrimethylammonium bromide was utilized to modify graphene oxide (GO) which was synthesized by the improved Hummers method. Monomer casting (MC) nylon/modified GO composites were prepared by an in situ anionic ring opening polymerization in this paper. The dispersion of the modified GO in nylon matrix was studied along with the mechanical and thermal properties of the composites. The results showed that the amount of sodium hydroxide had notable effects on the dispersion of the modified GO. Specifically, the incorporation of the modified GO into MC nylon enhanced the crystallization as confirmed by differential scanning calorimetric. The impact strength of the composite was improved by 66 % when 0.2 wt% of the modified GO was incorporated in the nylon matrix. Meanwhile, the tensile strength and flexural strength increased by 5 and 1.4 %, respectively. The results tested by thermal gravimetric analysis indicated that the composites had higher decomposition temperature in comparison with neat MC nylon.

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“…However, the result of the tensile strength is not superior to that reported in the aforementioned Ref. [13].…”

Section: Mechanical Properties Of the Compositescontrasting

confidence: 70%

Section: Introductionmentioning

confidence: 99%

In situ polymerization to prepare graphene-toughened monomer cast nylon composites

et al. 2015

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“…First, as one of the emerging self-lubricating materials, the uniformly distributed GO nanosheets in the composite coating lead to a significant decrease of friction coefficient. Pan et al [25] found that the incorporations of GO into monomer casting nylon largely reduced wear and friction under dry sliding. Kinoshita et al [26] found that adding GO monolayer in water improved lubricating properties and provided a very low friction coefficient of approximately 0.05 with no obvious surface wear after 60,000 cycles of friction testing.…”

Section: Wear and Corrosion Resistance Of The Coatingsmentioning

confidence: 99%

Producing cobalt–graphene composite coating by pulse electrodeposition with excellent wear and corrosion resistance

Liu

Liang

2015

Applied Surface Science

109

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“…When the embedded graphene in the polymer matrix is extruded and it forms solid stable transfer films on the relative sliding surfaces, which can prevent the sliding occurring between the rough surface of composite coatings and steel counterpart, it endows a self-lubricating characteristic of the polymer composite [31,32]. …”

Section: Effect Of Graphene Content On the Tribological Propertiesmentioning

confidence: 99%

“…The significant decrease in the friction coefficient and wear rate for polymer composite coating can be associated with the self-lubrication of graphene. When the embedded graphene in the polymer matrix is extruded and it forms solid stable transfer films on the relative sliding surfaces, which can prevent the sliding occurring between the rough surface of composite coatings and steel counterpart, it endows a self-lubricating characteristic of the polymer composite [31,32]. Figure 6 shows the average friction coefficient of the polymer coating with various graphene contents slid against the GCr15 steel ball with temperatures varying from 25 to 200 °C.…”

Section: Effect Of Graphene Content On the Tribological Propertiesmentioning

confidence: 99%

Enhanced Tribological Properties of Polymer Composite Coating Containing Graphene at Room and Elevated Temperatures

Zhang

Wei

et al. 2018

Coatings

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Abstract:To improve the tribology properties of the polymer coating under elevated temperature, the epoxy coating was reinforced with nano graphene. The micro-hardness, heat conductivity, and thermo-gravimetric properties of the coating were enhanced as filled graphene. The friction and wear properties of the polymer coating were studied using a pin-on-disc tribo-meter under room and elevated temperatures. The results showed that under room temperature, the friction coefficient and the wear rate of the coating adding 4.0 wt % graphene was 80% and 76% lower than that of the neat epoxy coating, respectively. As the test temperature increased, the friction coefficient of the graphene/polymer coatings decreased at first and then slightly increased. The friction coefficient was at its lowest value under 150 • C and then increased as the temperature rose to 200 • C. By adding 4.0 wt % graphene, the friction coefficient and wear rate of the polymer coating were further reduced, especially at elevated temperatures.

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Tribological and mechanical investigation of MC nylon reinforced by modified graphene oxide

Cited by 123 publications

References 38 publications

In situ polymerization to prepare graphene-toughened monomer cast nylon composites

In situ polymerization to prepare graphene-toughened monomer cast nylon composites

Producing cobalt–graphene composite coating by pulse electrodeposition with excellent wear and corrosion resistance

Enhanced Tribological Properties of Polymer Composite Coating Containing Graphene at Room and Elevated Temperatures

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