Novel Electrically Conductive Melamine‐formaldehyde Nanocomposite Based on Graphite Nanosheets

Abdala, Ahmed; Pretschuh, Claudia; Schwarzinger, Clemens; Lonkar, Sunil P.; Vukusic, Sulafudin

doi:10.1002/masy.201300146

Cited by 2 publications

(1 citation statement)

References 32 publications

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“…Excellent electrical conductivity was also observed for the nanocomposites. Conductive polymer nanocomposites based on graphene nanosheets (GNS) and MF resin were also reported recently . GNS was manufactured by the thermal exfoliation process of graphite oxide at 900 °C.…”

Section: Thermoset–graphene Nanocompositesmentioning

confidence: 99%

Mechanical and Thermal Properties of Thermoset–Graphene Nanocomposites

Saleem

Edathil

Ncube

et al. 2016

Macro Materials & Eng

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formaldehyde, phenol formaldehyde, silicone, vinyl ester, cyanate ester, unsaturated polyester resin, etc. The properties of thermoset materials can be further improved by reinforcing them with fi llers, most commonly used being clays, carbon nanotubes, and graphene nanoplatelets. GrapheneGraphene is a fundamental building block of all graphitic forms of carbon and consists of a single layer of sp 2 -hybridized carbon atoms arranged in a honeycomb structure. A single defect-free graphene layer has Young's modulus of 1.0 TPa, intrinsic strength 42 N m −1 , thermal conductivity 4840-5300 W (m K) −1 , electron mobility exceeding 25 000 cm 2 V −1 s −1 , excellent gas impermeability and specifi c surface area of 2630 m 2 g −1 . [3][4][5][6][7][8][9][10][11] On incorporation into polymers, the mechanical, thermal, as well as electrical properties of the polymeric materials are significantly improved. [ 3,[12][13][14][15] The geometry differs with size and number of atomic layers, which determines the aspect ratio and the specifi c surface area. Generally speaking, GNSs have higher specifi c surface area than CNTs, thus, having higher potential of property enhancement in Graphene has resulted in signifi cant research effort to generate polymer nanocomposites with improved mechanical, thermal as electrical properties as compared to pure polymers. A large number of studies have been undertaken using different graphene derivatives, fi ller loadings, synthesis methods, and so on to obtain optimum fi ller dispersion as well as fi ller-matrix interactions, which are crucial for achieving signifi cant enhancement in the properties, especially at low fi ller fraction. This review summarizes the mechanical and thermal properties of numerous studies carried out for the property enhancements of commercially relevant thermosetting materials such as epoxy, polyurethane, natural rubber, melamine formaldehyde, phenol formaldehyde, silicones, vinyl ester, cyanate ester, and unsaturated polyester resin.

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Section: Thermoset–graphene Nanocompositesmentioning

confidence: 99%

Mechanical and Thermal Properties of Thermoset–Graphene Nanocomposites

Saleem

Edathil

Ncube

et al. 2016

Macro Materials & Eng

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Effects of the Ball Milling Process on the Particle Size of Graphene Oxide and Its Application in Enhancing the Thermal Conductivity of Wood

Zhang

Mao

et al. 2022

Forests

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To improve the dispersion of graphene oxide particles in wood for better thermal conductivity, this paper proposes the feasibility of obtaining graphene oxide with a smaller particle size using ball milling and its application in melamine resin-modified poplar veneer. The median diameter of multilayer graphene oxide was measured to learn the effects of different ball milling conditions on the particle size of graphene oxide, and the optimum ball milling process was chosen. In addition, the microscopic characterization of graphene oxide under the optimum ball milling process was carried out to investigate the microstructural changes in multilayer graphene after ball milling. Furthermore, the thermal conductivity of the graphene oxide/melamine resin-impregnated mixture modified veneer with the optimum ball milling process was also tested. The results show that, under the optimum ball milling process conditions of SDS wet ball milling with a vibration frequency of 30 Hz for 60 min, the particle size of the multilayer graphene was the smallest, and the median diameter could be reduced to 124 nm. Simultaneously, the thermal conductivity of the melamine resin-modified poplar veneer enhanced by the ball-milled graphene reached 0.405 W·m−1·K−1. In addition, it revealed that the number of graphene oxide layers was reduced to four after ball milling. However, the multilayer graphene was partially oxidized, the lamellar structure was destroyed and the crystallinity was reduced.

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Novel Electrically Conductive Melamine‐formaldehyde Nanocomposite Based on Graphite Nanosheets

Cited by 2 publications

References 32 publications

Mechanical and Thermal Properties of Thermoset–Graphene Nanocomposites

Mechanical and Thermal Properties of Thermoset–Graphene Nanocomposites

Effects of the Ball Milling Process on the Particle Size of Graphene Oxide and Its Application in Enhancing the Thermal Conductivity of Wood

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