Improved flame resistance and thermo-mechanical properties of epoxy resin nanocomposites from functionalized graphene oxide via self-assembly in water

Fang, Fang; Ran, Shiya; Fang, Zhengping; Song, Pingan; Wang, Hao

doi:10.1016/j.compositesb.2019.01.086

Cited by 332 publications

(97 citation statements)

References 37 publications

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“…Therefore, selecting proper materials with flake‐like or rod‐like structures may lead to positive effect on the mechanical properties. Fang et al introduced PPGO to EP composites to improve the fire performance and storage modulus in rubbery state . Wang et al prepared EP composites containing manganese phytate dotted polyaniline shell enwrapped carbon nanotube (MPCNT) and found that the PHRR value of EP composites was decreased by 27.2% and the storage modulus was obviously improved with slightly elevated glass transition temperature …”

Section: Introductionmentioning

confidence: 99%

Preparation of 3‐aminopropyltriethoxy silane modified cellulose microcrystalline and their applications as flame retardant and reinforcing agents in epoxy resin

Wang

Feng

et al. 2020

Polymers for Advanced Techs

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Cellulose microcrystalline (CMC), a linear polysaccharide with glucosidic bond, was successfully extracted from bamboo powder and modified by 3-aminopropyltriethoxy silane coupling agent (KH550) to prepare KH550-CMC. The prepared KH550-CMC, in association with ammonium polyphosphate (APP), was introduced into epoxy resin (EP) by casting process to obtain flame retardant composites. The fire performance evaluation indicated that the presence of 10-phr APP and 5-phr KH550-CMC in EP achieved the maximal LOI value of 28.9%, passed the UL-94 V-0 rating, and significantly decreased the peak heat release rate from 1055 kW/m 2 of neat EP to 286 kW/m 2 . The improved fire performance is due to the improvement of dispersity of CMC in EP matrix and formation of better char layer, thus protecting the matrix effectively. Moreover, the introduction of KH550-CMC could also partly eliminate the negative influence of flame retardants on the mechanical properties of EP composites due to the strengthening effect of CMC and better interfacial compatibility after modification with KH550.

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Section: Introductionmentioning

confidence: 99%

Preparation of 3‐aminopropyltriethoxy silane modified cellulose microcrystalline and their applications as flame retardant and reinforcing agents in epoxy resin

Wang

Feng

et al. 2020

Polymers for Advanced Techs

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“…With the increase of the amount of GO-ODOPM, the surface of the carbon layer was covered by phosphoric-oxygenic compound, which became rough and dense. Particularly, the char residues of 3 wt% GO-ODOPM/PS composite microspheres exhibited a more cohesive and compressed layer on the surface without obvious holes and cracks, indicating relatively slow transfer of heat and combustible gases during thermal degradation and combustion by introducing 3 wt% GO-ODOPM, and it is beneficial to suppress the combustion process [29]. Figure 11(a-e) presented the Raman spectra of the char residues for PS microspheres and different additions of GO-ODOPM/PS composite microspheres after the Combustion test and the data was shown in Table 4.…”

Section: Micro-scale Combustion Calorimetry Analysis (Mcc)mentioning

confidence: 99%

A study on preparation of modified Graphene Oxide and flame retardancy of polystyrene composite microspheres

Wang

Qing

Sun

et al. 2020

Designed Monomers and Polymers

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In this paper, the ODOPM, a kind of 9, 10-dihydro-9-oxygen-heterooxy-10-phosphoro-10-oxygen (DOPO) derivative, was obtained by hydroxylation of DOPO. Further, a phosphorus nano-flame retardant (GO-ODOPM) was obtained by addition reaction with carboxylated Graphite Oxide (GO-COOH). And then Graphene Oxide/polystyrene (GO-ODOPM/PS) composite microspheres were obtained via suspension polymerization of styrene with GO-ODOPM. The decrease of the peak heat release rate (HRR) and total heat release rate (THR) for the GO-ODOPM/PS composite microspheres was obtained when the content of the additives was only 3.0 wt% is more than 36.2% and 33.6% compared with the pure PS microspheres, respectively. Thermogravimetric (TG), dynamic rheology and carbon residue analysis were used to study the flame-retardant mechanism of GO-ODOPM in PS microspheres. The results revealed that the addition of GO-ODOPM obviously reduced the fire hazard of polystyrene (PS) microspheres. Thus, this work provided a feasible method to design efficient flame retardants for enhancing fire safety of polymers. ARTICLE HISTORY

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“…Graphene oxide (GO) is an oxidized form of graphene, it has a similar structure as graphene, but its physical and chemical properties are quite different [ 31 , 32 ]. Due to the large number of oxygen functional groups, GO can be used as a new class of modifiers for resin matrixes, resulting in the observation of new properties or in a considerable improvement of them, leading to modification of structure-properties relations, which otherwise wouldn’t be detected [ 33 , 34 , 35 ]. So far as we know, the location of GO will become a stress concentration point during the deformation of the resin matrix, which causes the resin matrix around it to be yield, and then absorbing a large amount of deformation work, so as to achieve the purpose of toughening [ 36 , 37 ]; in addition, a large number of active functional groups can be introduced into the surface of GO via modifying, which can be both physically or chemically cross-linked with the polymer chain.…”

Section: Introductionmentioning

confidence: 99%

Enhancement of Thermal and Mechanical Properties of Bismaleimide Using a Graphene Oxide Modified by Epoxy Silane

Jiang

Ji²,

Gan

et al. 2020

Materials

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A thermosetting resin system, based on bismaleimide (BMI), has been developed via copolymerization of 4,4′-diaminodiphenylsulfone with a newly synthesized graphene oxide modified using epoxy silane (ES-GO). The effect of ES-GO on the thermomechanical and mechanical properties of cured modified resin was studied. To evaluate the efficiency of the modified BMI systems, the composite samples using glass fiber cloth were molded and tested. Thermogravimetric analysis indicates that the cured sample systems displays a high char yield at lower concentrations of ES-GO (≤0.5 wt.%), suggesting an improved thermal stability. Using dynamic mechanical analysis, a marked increase in glass transition temperature (Tg) with increasing ES-GO content was observed. Analysis of mechanical properties reveals a possible effect of ES-GO as a toughener. The results also showed that the addition of 0.3 wt.% ES-GO maximizes the toughness of the modified resin systems, which was further confirmed by the result of analysis of fracture surfaces. At the same time, a molded composite with ES-GO showed improved mechanical properties and retention rate at 150 °C as compared to that made with neat resin.

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Improved flame resistance and thermo-mechanical properties of epoxy resin nanocomposites from functionalized graphene oxide via self-assembly in water

Cited by 332 publications

References 37 publications

Preparation of 3‐aminopropyltriethoxy silane modified cellulose microcrystalline and their applications as flame retardant and reinforcing agents in epoxy resin

Preparation of 3‐aminopropyltriethoxy silane modified cellulose microcrystalline and their applications as flame retardant and reinforcing agents in epoxy resin

A study on preparation of modified Graphene Oxide and flame retardancy of polystyrene composite microspheres

Enhancement of Thermal and Mechanical Properties of Bismaleimide Using a Graphene Oxide Modified by Epoxy Silane

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