Stabilizing effects of novel phosphorus flame retardant on PET for high-temperature applications

Gooneie, Ali; Simonetti, Pietro; Rupper, Patrick; Nazir, Rashid; Jovic, Milijana; Gaan, Sabyasachi; Heuberger, Manfred; Hufenus, Rudolf

doi:10.1016/j.matlet.2020.128225

Cited by 20 publications

(7 citation statements)

References 15 publications

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“…The D peak appears at 1334 cm À1 , corresponding to the disordered carbon materials, and the G peak appears at 1599 cm À1 , corresponding to an ordered carbon structure. 20,44 The ratio of the areas of the G and the D peaks, S G /S D , is quantied to analyse the degree of the carbon layer order, with higher S G /S D indicating a more ordered and denser carbon layer. 45,46 The density of the carbonaceous structure increases with the addition of the acidic silica sol because the cross-linked silica sol promotes the graphitic carbon content.…”

Section: Morphology Of Residual Char On the Copolyestermentioning

confidence: 99%

Preparation and thermal cross-linking mechanism of co-polyester fiber with flame retardancy and anti-dripping by in situ polymerization

Zhu

Jiang

et al. 2022

RSC Adv.

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Section: Morphology Of Residual Char On the Copolyestermentioning

confidence: 99%

Preparation and thermal cross-linking mechanism of co-polyester fiber with flame retardancy and anti-dripping by in situ polymerization

Zhu

Jiang

et al. 2022

RSC Adv.

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“…The flammability of PET (Limiting oxygen index is only 21%) and the existence of glass fiber (improving heat transfer and “wick effect” 6 ) limits the application of PET/GF in the above fields 7 . So far, halogen‐containing 8 and phosphorus‐containing 9–11 flame retardants are two widely used flame retardants in PET. Among them, environmentally friendly, low‐toxic phosphorus‐containing flame retardants attract much attention.…”

Section: Introductionmentioning

confidence: 99%

Glass fiber reinforced PET modified by few‐layer black phosphorus

Xiao

Wu³

et al. 2021

Polymers for Advanced Techs

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Glass fiber reinforced polyethylene terephthalate (PET/GF) with enhanced flame retardancy was prepared with few‐layer black phosphorus (BPs) for the first time. The performance of red phosphorus (RP) modified PET/GF was also investigated for comparison. Results show that PET/GF with 0.9 wt% BPs (PET/GF@BP‐0.9) can eliminate the ignition of cotton by dripping. The addition of 2.7 wt% of BPs can make the PET/GF sample pass UL 94 V‐0 classification, while a much higher of 6.3 wt% RP was needed to pass the same classification. Compared with neat PET/GF, the peak heat release rate (PHRR) and total heat release (THR) rate of PET/GF@BP‐2.7 decreases ca. 52.5% and 34.8%, respectively. The studies of char residues reveal that BPs could act as a catalyst for char formation and the formed char could roughen the surface of GF and thus restrain the “wick effect.” Thermogravimetric analysis/infrared spectrometry shows that the addition of BPs significantly inhibited the release of gas‐phase products. The attractive abilities of BPs as flame retardant provide a novel and effective way of PET/GF modification.

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“…Figure 7 shows the Raman spectra of residual char on copolyester composites; the G peak appears at 1580 cm −1 , corresponding to an ordered carbon structure, and the D peak appears at 1360 cm −1 , corresponding to disordered carbon materials. [ 4,28,31 ] The ratio of the areas of the G and D peaks, S G /S D , was quantified to analyze the degree of order of the carbon layer order, with higher S G /S D indicating a more ordered and denser carbon layer. [ 32,33 ] With magnesium hydroxide addition, the S G /S D increased.…”

Section: Resultsmentioning

confidence: 99%

Thermal cross‐linking and anti‐meltdrop properties of copolyester containing phosphorus/magnesium salt composites by in situ polymerization

Jiang

Zhu

et al. 2021

Vinyl Additive Technology

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Polyester is widely used in household products because of its good mechanical properties and wears resistance, but polyester is easy to ignite and inclined to produce droplet, so its application range is limited. The cross‐linkable magnesium hydroxide nanoparticles were incorporated into flame‐retardant polyester, which enables the phosphorus‐containing copolyester with thermal cross‐linking and anti‐meltdrop properties. The nanoparticles were achieved by in situ polymerization and acted as a nucleating agent for improving the crystalline properties of the copolyester. Furthermore, the nanoparticles also enhanced anti‐meltdrop properties and reduced the heat and gas release during the combustion process of the copolyester. The maximum heat release rate and total smoke release reduced by 39.8% and 74.4% compared with pure polyester. Specifically, the combustion products of the nanoparticles and phosphorus flame retardant could act a barrier role by covering the carbon layer to isolate air and heat, thereby resulting in excellent anti‐meltdrop properties. The simple modification method reported here realizes the collaborative modification of flame retardant and anti‐meltdrop properties of phosphorous flame‐retardant copolyesters by thermal cross‐linking.

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Stabilizing effects of novel phosphorus flame retardant on PET for high-temperature applications

Cited by 20 publications

References 15 publications

Preparation and thermal cross-linking mechanism of co-polyester fiber with flame retardancy and anti-dripping by in situ polymerization

Preparation and thermal cross-linking mechanism of co-polyester fiber with flame retardancy and anti-dripping by in situ polymerization

Glass fiber reinforced PET modified by few‐layer black phosphorus

Thermal cross‐linking and anti‐meltdrop properties of copolyester containing phosphorus/magnesium salt composites by in situ polymerization

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