Ionic liquid modified graphene oxide for enhanced flame retardancy and mechanical properties of epoxy resin

Wan, Mei; Shen, Jinwei; Sun, Chunfeng; Gao, Ming; Yue, Lina; Wang, Yuxin

doi:10.1002/app.50757

Cited by 22 publications

(36 citation statements)

References 43 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…It is a compound with great potential to become an excellent flame retardant. Wan et al [23] used the silane coupling agent KH550 and the ionic liquid 1-butyl-3-methylimidazole hexafluorophosphate (PF 6 -ILs) to modify the surface of graphene oxide (GO). By adding 0.1 wt% PF6, ILs@GO and 14.9 wt% MPP were found to have the best flame retardant properties.…”

Section: Graphene 21 Synergistic Flame Retardancy Of Graphenementioning

confidence: 99%

Nanocarbon-Based Flame Retardant Polymer Nanocomposites

et al. 2021

View full text Add to dashboard Cite

In recent years, nanocarbon materials have attracted the interest of researchers due to their excellent properties. Nanocarbon-based flame retardant polymer composites have enhanced thermal stability and mechanical properties compared with traditional flame retardant composites. In this article, the unique structural features of nanocarbon-based materials and their use in flame retardant polymeric materials are initially introduced. Afterwards, the flame retardant mechanism of nanocarbon materials is described. The main discussions include material components such as graphene, carbon nanotubes, fullerene (in preparing resins), elastomers, plastics, foams, fabrics, and film–matrix materials. Furthermore, the flame retardant properties of carbon nanomaterials and their modified products are summarized. Carbon nanomaterials not only play the role of a flame retardant in composites, but also play an important role in many aspects such as mechanical reinforcement. Finally, the opportunities and challenges for future development of carbon nanomaterials in flame-retardant polymeric materials are briefly discussed.

show abstract

Section: Graphene 21 Synergistic Flame Retardancy Of Graphenementioning

confidence: 99%

Nanocarbon-Based Flame Retardant Polymer Nanocomposites

et al. 2021

View full text Add to dashboard Cite

show abstract

“…(A) Surface grafting of IL on CNT (adapted from [ 68,75–77 ] ) and possible physical interactions of IL with CNT and DGEBA‐epoxy (adapted from [ 78,79 ] ); (B) surface grafting of IL on GO (adapted from [ 80 ] ) and possible physical interactions of IL with GO and DGEBA‐epoxy (adapted from References 81–85). CNT, carbon nanotube; DGEBA, diglycidyl ether of bisphenol A; GO, graphene oxide; IL, ionic liquid…”

Section: Type Of Reinforcementsmentioning

confidence: 99%

“…[93] Finally, SWCNTs are more convenient than MWCNT, when enhanced tribological characteristics are desired, [95] and many papers report on the dual role of IL, both as curing agent and dispersant. [92] Furthermore, F I G U R E 8 (A) Surface grafting of IL on CNT (adapted from [68,[75][76][77] ) and possible physical interactions of IL with CNT and DGEBAepoxy (adapted from [78,79] ); (B) surface grafting of IL on GO (adapted from [80] ) and possible physical interactions of IL with GO and DGEBAepoxy (adapted from References 81-85). CNT, carbon nanotube; DGEBA, diglycidyl ether of bisphenol A; GO, graphene oxide; IL, ionic liquid Abbreviations: CNT, carbon nanotube; DGEBA, diglycidyl ether of bisphenol A; IL, ionic liquid.…”

Section: Mwcnt and Swcntmentioning

confidence: 99%

“…[85] Different manufacturing techniques have been explored to evaluate the influence of different routes and parameters on the composites mechanical, thermal, electrical, and tribological properties. [77] Some routes like sonication and roll-milling enabled improved exfoliation of GO, assisted by IL, which also contributed to an efficient conductive filler network into the matrix. Then, improvements in the filler-matrix interfacial strength are expected due to the higher surface area created.…”

Section: Mwcnt and Swcntmentioning

confidence: 99%

See 1 more Smart Citation

Ionic liquid‐functionalized reinforcements in epoxy‐based composites: A systematic review

et al. 2022

View full text Add to dashboard Cite

Several high‐performance reinforcements may be used in epoxy‐based composites. These commonly undergo chemical and/or physical treatments to enhance their interfacial interactions with polymer matrices. One recent technology comprises the use of ionic liquids (IL) as compatibilizers. This strategy may result in the development of composite materials with greater performance or multifunctional characteristics. Herein, an overview in the area of IL‐modified reinforcements and their effect on epoxy‐based composites is presented. The PRISMA protocol was followed for the review, and the focus of these studies was on the modification of carbon nanotubes, followed by graphene/graphite nanoplatelets and bio‐fillers. The most used IL were those based on imidazolium cation, especially 1‐butyl‐3‐methylimidazolium chloride. In most cases, when IL are used, the reinforcement displays stronger interactions with the epoxy matrix, depending the treatment route employed. Improved interfacial interactions are cited as the main reason for the improvement in the composite mechanical and thermal performances. It was also found that strategies for using low IL content, or routes that enable recovery of the salts after fiber/particle treatment, are still required, as well as the study of the influence of different amounts/types of IL on the structure of fillers and their relationships with the composite properties.

show abstract

“…Zhang et al used two ionic liquids, 1‐aminopropyl‐3‐methylimidazolium hexafluorophosphate ([APMIm]PF 6 ) and (1‐butyl‐methylimidazolium hexafluorophosphate) ([EMIM]PF 6 ), for flame retardation of thermoplastic polyurethane elastomers (TPU) 34 . Wan et al functionalized graphene oxide (GO) with silane coupling agent KH550 and 1‐butyl‐3‐methylimidazolium hexafluorophosphates, which proposed a new method for flame retardant modification of GO to improve the flame retardancy and mechanical properties of polymers 35 . Bentis et al treated cotton fabrics by the sol–gel method using 1‐methylimidazolium chloride propyltriethoxysilane (MCPTS) and 1‐pyridinium chloride propyltriethoxysilane (PCPTS) salts containing Cl − , PF 6 − , (CF 3 SO 2 ) 2 N − , BF 4 − , and CH 3 CO 2 − anions to improve the flame retardant properties of cotton fabrics 36 .…”

Section: Introductionmentioning

confidence: 99%

Surface modification of epichlorohydrin‐modified aramid nanofibers using ionic liquid to improve the fire safety and tensile strength of cotton fabrics

Wang

Feng

Piao

et al. 2022

Polymers for Advanced Techs

View full text Add to dashboard Cite

In this article, flame‐retardant cotton fabric was prepared by a step‐by‐step dip‐coating method, in which flame retardants were introduced onto the surface of the cotton fabric by hydrogen bonding association and surface grafting reaction. First, the epichlorohydrin‐modified aramid nanofibers (AEP) were accumulated onto the surface of cotton fabric (Cot/AEP) through hydrogen bond association. Subsequently, the ionic liquid (IL) was grafted onto the surface of AEP to obtain Cot/AEP/IL. The fire safe performance of cotton fabrics was investigated by the limiting oxygen index test (LOI), vertical flammability test (VFT), and cone calorimeter test (CCT), and so forth. The LOI value of Cot/AEP/IL was as high as 29.5%. The VFT results showed that Cot/AEP/IL was self‐extinguishing rather than ignited, leaving a char length of 111 mm. The CCT results demonstrated that the peak heat release rate and total heat release of Cot/AEP/IL decreased by 42.5% and 58.8% compared with untreated cotton fabrics, respectively. The TG test showed that Cot/AEP/IL had more residues left than untreated cotton under both N2 and air atmospheres. The presence of phosphorus enables the cotton fabric to generate an aromatic phosphor carbonaceous structure during the combustion process. In addition, the tensile strength of cotton fabric was tested. After the introduction of AEP/IL, the average tensile strength value of untreated cotton improved from 129 to 167 N in the warp direction and 125–155 N in the weft direction. In summary, the introduction of AEP/IL improved both the flame‐retardant and mechanical properties of the cotton fabric significantly.

show abstract

Ionic liquid modified graphene oxide for enhanced flame retardancy and mechanical properties of epoxy resin

Cited by 22 publications

References 43 publications

Nanocarbon-Based Flame Retardant Polymer Nanocomposites

Nanocarbon-Based Flame Retardant Polymer Nanocomposites

Ionic liquid‐functionalized reinforcements in epoxy‐based composites: A systematic review

Surface modification of epichlorohydrin‐modified aramid nanofibers using ionic liquid to improve the fire safety and tensile strength of cotton fabrics

Contact Info

Product

Resources

About