Novel C3N4/PANI@PA for enhancement of fire protection and smoke suppression in intumescent fire retardant epoxy coatings

Dong, Huixin; Liu, Wei; Chen, Wenjiao; Feng, Tingting; Wang, Yaxuan; Piao, Junxiu; Ren, Jinyong; Wang, Yaofei; Li, Shaoxiang; Chen, Xilei; Jiao, Chuanmei

doi:10.1016/j.porgcoat.2021.106496

Cited by 19 publications

(13 citation statements)

References 30 publications

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“…3e) shows the presence of –CN– (397.7 eV), –N– (400.2 eV) and –NH 4+ (405.5 eV). 30 The C 1s and N 1s spectrums indicate the successful preparation of PC by combining PANI and g-C 3 N 4 . 38 Moreover, Ti 2p (Fig.…”

Section: Resultsmentioning

confidence: 92%

Facile fabrication of PANI/g-C₃N₄/MXene composites as electrode materials for supercapacitors

et al. 2023

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Section: Resultsmentioning

confidence: 92%

Facile fabrication of PANI/g-C₃N₄/MXene composites as electrode materials for supercapacitors

et al. 2023

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“…However, the PSPR and TSR values of the MF-1.5 foam reduce by 44.2 and 4.8% compared with that of the MF-0 foam, respectively. The drop in PSPR and TSR values indicates that the incorporated GP can play a positive role in the smoke suppression effect, and the av-EHC measures the combustion extent of pyrolysis gases in the gas phase . In Table , MF-1.5 attains an av-EHC value of 8.2 MJ/kg, which is 4.4 and 7.6 MJ/kg less than that of MF and MF-0 foams, respectively, demonstrating the existence of a gas-phase flame-retardant effect.…”

Section: Resultsmentioning

confidence: 94%

“…The drop in PSPR and TSR values indicates that the incorporated GP can play a positive role in the smoke suppression effect, and the av-EHC measures the combustion extent of pyrolysis gases in the gas phase. 38 In Table 2, MF-1.5 attains an av-EHC value of 8.2 MJ/kg, which is 4.4 and 7.6 MJ/kg less than that of MF and MF-0 foams, respectively, demonstrating the existence of a gas-phase flameretardant effect. The decrease in av-EHC is speculated to be caused by non-combustible gases released by the decomposition of GP, which can dilute the concentration of combustible gases.…”

Section: Cone Calorimeter Testsmentioning

confidence: 93%

Multifunctional Lightweight Guanidine Phosphate/Poly(Vinyl Alcohol) Melamine-Based Hybrid Foam for Superior Thermal Insulation and Flame Retardancy

Liu

et al. 2022

ACS Appl. Polym. Mater.

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In the field of building energy conservation, advanced thermal insulation materials with low thermal conductivity and excellent flame retardancy have always been a research emphasis. This work proposes a facile strategy for fabricating a hybrid foam based on the skeleton of melamine-formaldehyde (MF) foam, and the GP/poly(vinyl alcohol) (PVA) tightly adheres to the skeleton with the capillary force of MF. The combination of guanidine phosphate (GP) and PVA provides outstanding thermal insulation performance and infrared stealth property to the hybrid foam, and the existence of GP endows the hybrid foam with superior flame retardancy and charring ability. The tensile and compression strength of the GP/PVA@MF hybrid foams have significantly improved. The 1.5 wt % GP/10 wt % PVA@MF (MF-1.5) foam has an ultra-low thermal conductivity value of 0.0293 W m–1 K–1 due to the rational three-dimensional (3D) pore microstructure. Meanwhile, the MF-1.5 foam achieves a V-0 rating in the vertical burning (UL-94) test and a limiting oxygen index of 32.4%. Furthermore, the cone calorimeter results show that the addition of GP significantly reduces total heat release and total smoke release. The GP/PVA@MF hybrid foam will be a multifunctional material with outstanding thermal insulation and flame retardancy, showing a great application in the military and civilian fields.

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“…Via the result of XPS and FTIR spectra curves, it can be inferred that the presence of P made the char layer structure change. The emergence of the stable P–O–C bond proved the generation of aromatic phosphor carbonaceous structure which formed a compact and dense char residue 60,73,74 …”

Section: Resultsmentioning

confidence: 99%

“…The emergence of the stable P-O-C bond proved the generation of aromatic phosphor carbonaceous structure which formed a compact and dense char residue. 60,73,74 The gas-phase flame retardant mechanism of AEP/IL is attributed to the following reasons: the introduction of AEP/IL suppresses the production of combustible gases (C=O and aromatic compounds). The non-combustible gases dilute the generated combustible gases and inhibit the combustion process.…”

Section: Gas Phase Analysismentioning

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

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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.

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Novel C3N4/PANI@PA for enhancement of fire protection and smoke suppression in intumescent fire retardant epoxy coatings

Cited by 19 publications

References 30 publications

Facile fabrication of PANI/g-C₃N₄/MXene composites as electrode materials for supercapacitors

Facile fabrication of PANI/g-C₃N₄/MXene composites as electrode materials for supercapacitors

Multifunctional Lightweight Guanidine Phosphate/Poly(Vinyl Alcohol) Melamine-Based Hybrid Foam for Superior Thermal Insulation and Flame Retardancy

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

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Novel C3N4/PANI@PA for enhancement of fire protection and smoke suppression in intumescent fire retardant epoxy coatings

Cited by 19 publications

References 30 publications

Facile fabrication of PANI/g-C3N4/MXene composites as electrode materials for supercapacitors

Facile fabrication of PANI/g-C3N4/MXene composites as electrode materials for supercapacitors

Multifunctional Lightweight Guanidine Phosphate/Poly(Vinyl Alcohol) Melamine-Based Hybrid Foam for Superior Thermal Insulation and Flame Retardancy

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

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Product

Resources

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Facile fabrication of PANI/g-C₃N₄/MXene composites as electrode materials for supercapacitors

Facile fabrication of PANI/g-C₃N₄/MXene composites as electrode materials for supercapacitors