A novel intumescent flame retardant-functionalized graphene: Nanocomposite synthesis, characterization, and flammability properties

Huang, Guobo; Chen, Suqing; Tang, Shouwan; Gao, Jianrong

doi:10.1016/j.matchemphys.2012.05.082

Cited by 113 publications

(55 citation statements)

References 51 publications

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“…The third category of flame retardant graphenenanocomposite flame retardants refers to conventional-organic flame retardant molecules graphenenanocomposite flame retardants. They include conventional-organic flame retardants such as phosphorus-containing organic flame retardants [40,[85][86][87], phosphorus-and nitrogen-containing organic flame retardants [88][89][90][91][92][93], and phosphorus-and siliconcontaining-organic flame retardants [94,95]. These organic flame retardants can functionalize graphene by inserting covalently bonded molecules between the layers of graphene (intercalation).…”

Section: Molecules-modified Graphene Composite Flame Retardantsmentioning

confidence: 99%

“…Liao et al [85] prepared 9, 10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide-reduced GO (DOPO-rGO) by allowing epoxy-ring groups to react with reduced graphene; they found that the phosphorus and GO layer structures of DOPO-rGO cause a continuous and stable protective char layer that acts as a thermal insulator and mass transport barrier, thereby increasing char yield and LOI. Huang et al [88] grafted the intumescent flame retardant poly(piperazine spirocyclic pentaerythritol bisphosphonate onto the surface of graphene (PPSPB-GO) and incorporated it into ethylene vinyl acetate copolymer (EVA). With the assistance of TEM observations, they found that most GO in the grafted PPSPB composite exhibits an exfoliated structure, but most rGO sheets used alone are agglomerated, which indicates that PPSPB-rGO has good dispersion in the EVA matrix.…”

Section: Molecules-modified Graphene Composite Flame Retardantsmentioning

confidence: 99%

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Graphene-based flame retardants: a review

Sang

et al. 2016

J Mater Sci

184

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Graphene and its derivatives are potential flame retardant materials with good flame retardant performance; in particular, graphene as an adjuvant in combination with inorganic nanomaterials may be a promising candidate of flame retardant. This review describes the flame retardant mechanism, the development trend, and the classification of graphene-based flame retardants. It points out that graphene has attracted intensive interests in the fields of electronics, energy, and information, due to its excellent properties such as high thermal conductivity, good electron transport ability, and large specific surface area. In the meantime, graphene can change the pyrolysis as well as the thermal conductivity, heat absorption, viscosity and dripping of polymer during the combustion process. In other words, graphene can improve the thermal stability of polymer and delay its ignition, and it can also inhibit fire from spreading and reduce heat release rate.

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Section: Molecules-modified Graphene Composite Flame Retardantsmentioning

confidence: 99%

Section: Molecules-modified Graphene Composite Flame Retardantsmentioning

confidence: 99%

Graphene-based flame retardants: a review

Sang

et al. 2016

J Mater Sci

184

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“…6 In addition, graphene can tightly couple with matrix materials. [7][8][9] Nevertheless, the aggregation caused by molecular interactions [10][11][12] and compatibility between the graphene and polymer matrix 13 may directly affect the performance of the graphene-modied composite. Therefore, graphene has to be subjected to surface modication, such as graing with organic molecules.…”

Section: Introductionmentioning

confidence: 99%

Surface modification and thermal performance of a graphene oxide/novolac epoxy composite

Fang

et al. 2018

RSC Adv.

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Functionalized graphene oxide (GO) was successfully modified by grafting 1,3,5-triglycidylisocyanurate (TGIC) onto the surface of GO. The modified GO was then added to a novolac epoxy composite at various volume fractions to improve the interfacial compatibility between the filler and matrix. Samples of the modified GO/novolac epoxy composite were fabricated through the hot-pressing method.Microstructural analysis revealed that the modified GO dispersed well in the matrix and formed thermal conductive pathways across the matrix. The thermal degradation temperature of 50% weight loss of the modified GO/novolac epoxy composite was 166 C higher than that of the novolac epoxy. The data for loss factor tan d demonstrated that when the composite contained 36.8 wt% of modified GO, the glass transition temperature of the modified GO/novolac epoxy composite was 222 C, which is 90 C higher than that of the novolac epoxy. The thermal conductivity of the modified GO/novolac epoxy composite. Results indicated that the incorporation of surface-modified GO into the novolac epoxy positively affects the thermal conductivity and various properties of the modified GO/novolac epoxy composite.

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“…20 Other significant research demonstrates that functionalized GO with low molecular intumescent flame retardant not only improves the dispersion of graphene but also effectively increases the flame retardancy of ethylene/vinyl acetate nanocomposites. 21 Hyper-branched polymers have gained considerable attention because of their highly branched and nonentangled architecture as well as a large number of terminal groups, which can facilitate further modification with a target polymer via covalent linkage. 22,23 Additionally, hyper-branched polymers are prepared by an A2B3 type polymerization that monomer "A" has two functional group and monomer "B" possesses three functional groups.…”

Section: Introductionmentioning

confidence: 99%

Effect of Functionalized Graphene Oxide with Hyper-Branched Flame Retardant on Flammability and Thermal Stability of Cross-Linked Polyethylene

Zhan

Wang

et al. 2014

Ind. Eng. Chem. Res.

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In this work, GO was functionalized by a hyper-branched flame retardant, which was synthesized by the reaction of N-aminoethyl piperazine and di(acryloyloxyethyl)methylphosphonate. Subsequently, the resultant functionalized GO (FGO) was incorporated into the cross-linked polyethylene (XLPE) to enhance the flame retardancy of the matrix. Transmission electron spectroscopy images indicated that FGO exhibited uniform dispersion in XLPE matrix and strong adhesion with the matrix by crosslinking, which improved barrier effect due to reduced heat release and the free radical transfer between the matrix and graphene nanosheets. The incorporation of FGO into XLPE matrix endowed polymer composites with flame retardancy and thermal stability. In addition, the homogeneous dispersion of functionalized GO with a hyper-branched flame retardant in the polymer matrix improved the antioxidation and mechanical properties of XLPE−FGO nanocomposites compared to the XLPE− GO samples, as demonstrated through the oxidative induction temperature and time test, oven ageing test and mechanical test.

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A novel intumescent flame retardant-functionalized graphene: Nanocomposite synthesis, characterization, and flammability properties

Cited by 113 publications

References 51 publications

Graphene-based flame retardants: a review

Graphene-based flame retardants: a review

Surface modification and thermal performance of a graphene oxide/novolac epoxy composite

Effect of Functionalized Graphene Oxide with Hyper-Branched Flame Retardant on Flammability and Thermal Stability of Cross-Linked Polyethylene

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