Engineering carbon nanotubes wrapped ammonium polyphosphate for enhancing mechanical and flame retardant properties of poly(butylene succinate)

Zhang, Yan; Hu, Yixin; Wang, Junling; Tian, Wenxiang; Liew, K.M.; Zhang, Yi; Wang, Bibo

doi:10.1016/j.compositesa.2018.09.020

Cited by 71 publications

(40 citation statements)

References 42 publications

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“…Those “wormlike” segments can act as “skeleton frame” for the residual char, making the intumescent residual char become more stable and compact. Thus, the formation of excellent char structure can not only isolate the heat radiation from external heat source, but also effectively hinder the release of pyrolysis products 28–30 . Besides, the generation of NH 3 and H 2 O is beneficial to reduce the concentration of gaseous products in gas phase.…”

Section: Resultsmentioning

confidence: 99%

Layer‐by‐layer assembled bagasse to enhance the fire safety of epoxy resin: A renewable environmental friendly flame retardant

Chen

Jiang

et al. 2020

J of Applied Polymer Sci

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In an effort to make rational use of resources, wasted bagasse were collected, and then fabricated by layer-by-layer (LbL) assembly to prepare an environmentally benign flame retardant for epoxy resin (EP). Six chitosan/ammonum polyphosphate bilayers were successfully deposited on the surface of bagasse, which endows EP/6BL@BF composites with a limiting oxygen index value of 24.1% and V-1 rating in UL-94 test. Compared with untreated bagasse, cone calorimetry test reveals that the incorporation of 6BL@BF reduces the peak heat release rate and total heat release by 64.6% and 13.2%, respectively. Besides, expandable graphite (EG) was combined with 6BL@BF to further enhance the fire safety and thermal stability of EP composites. Furthermore, the gas and condensed phase analysis of EP/6BL@BF/EG-3 composite was investigated by TG-IR, scanning electronic microscopy, Laser Raman spectroscopy, and X-ray photoelectron spectroscopy, and the flame retardant mechanism of 6BL@BF/EG was proposed. Finally, the mechanical properties of EP composites were investigated systematically.

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Section: Resultsmentioning

confidence: 99%

Layer‐by‐layer assembled bagasse to enhance the fire safety of epoxy resin: A renewable environmental friendly flame retardant

Chen

Jiang

et al. 2020

J of Applied Polymer Sci

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“…The CAPP was prepared by the reported method in our laboratory . First, 50 g of APP was added to a 500 mL three‐necked flask with 200 mL of ethanol.…”

Section: Methodsmentioning

confidence: 99%

“…Particularly, ammonium polyphosphate (APP) is an excellent halogen‐free flame retardant . APP with high P element content (31 wt%), which causes it to produce a large amount of nonvolatile phosphorus oxides and polyphosphoric acid to cover the surface of the substrate and isolate the air to achieve the purpose of flame retardant after being heated . At the same time, APP produces noncombustible NH 3 during thermal decomposition.…”

Section: Introductionmentioning

confidence: 99%

Rapid electrothermal response and excellent flame retardancy of ethylene‐vinyl acetate electrothermal film

Tian

Zhang

et al. 2020

Polymers for Advanced Techs

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In this study, high electrical conductivity and flame retardant electrothermal ethylene-vinyl acetate (EVA) films were fabricated by using carbon nanotubeswrapped ammonium polyphosphate (CAPP) and conductive carbon black (CCB).CAPP was used as a synergistic conductive filler and flame retardant to improve the electrical conductivity and fire safety of the electrothermal film at the same time. Besides, the heat release rate (HRR) and the total heat release (THR) of EVA-5 decreased about 81.5% and 57.3% compared with those of pure EVA film, respectively. Moreover, by incorporating a small amount of CAPP, EVA-5 can reach up to V-0 rating with an limiting oxygen index (LOI) value of 31%. EVA film fabricated by CCB and CAPP as conductive material exhibited almost 10 times increment on electrical conductivity than that of same content for CCB alone.And time vs temperature profiles of EVA-5 showed a stable trend over 3600 seconds without any offset at a given applied voltage of 15 V. Moreover, its excellent cycle heating performance indicated that the electrothermal film can be recycled, which meets the requirements of sustainable development. In a word, this novel strategy provides a simple and effective way to obtain a high conductive and fire safety electrothermal film. K E Y W O R D S ammonium polyphosphate, carbon nanotubes, conductive carbon black, electrothermal film, flame retardant

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“…While phosphorus-and nitrogen-based flame retardants have been considered to be the greatly suitable for the polymer and widely used in recent years, because of the low toxicity and high efficiency. [11][12][13] For example, phosphorus, 9,10-dihydro-9-oxa-10-phosphaphenanthrene10-oxide, [14] ammonium polyphosphate, [15] and other phosphorus-based flame retardants can significantly improve the flame retardancy of polymer. Among the organophosphorus flame retardants, hexachlorocyclotriphosphazene (HCCP) is an efficient flame retardants, but the low thermostability and poor compatibility with the polymer limits its application.…”

Section: Introductionmentioning

confidence: 99%

Effects of hexaphenoxycyclotriphosphazene and glass fiber on flame‐retardant and mechanical properties of the rigid polyurethane foam

Zhang

Cheng

et al. 2020

Polymer Composites

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Hexaphenoxycyclotriphosphazene (HPCTP), modified with phenoxy groups based on hexachlorocyclotriphosphazene (HCCP), has been proved that have excellent thermal stability. In this article, HPCTP and glass fiber (GF) were added into the rigid polyurethane foam (RPUF) to improve the flame‐retardant and mechanical properties of RPUF. The mechanical properties of composite were measured by compressive strength test. The micrographs were observed by scanning electron microscopy. Furthermore, the flame‐retardant and thermal properties were investigated by limiting oxygen index, cone calorimeter test, and thermogravimetric analysis. The results showed that the addition of HPCTP and GF would improve the mechanical and flame‐retardant properties of RPUF.

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Engineering carbon nanotubes wrapped ammonium polyphosphate for enhancing mechanical and flame retardant properties of poly(butylene succinate)

Cited by 71 publications

References 42 publications

Layer‐by‐layer assembled bagasse to enhance the fire safety of epoxy resin: A renewable environmental friendly flame retardant

Layer‐by‐layer assembled bagasse to enhance the fire safety of epoxy resin: A renewable environmental friendly flame retardant

Rapid electrothermal response and excellent flame retardancy of ethylene‐vinyl acetate electrothermal film

Effects of hexaphenoxycyclotriphosphazene and glass fiber on flame‐retardant and mechanical properties of the rigid polyurethane foam

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