Effect of amino acid‐triazine copolymer on intumescent flame retardant ethylene‐vinyl acetate

Wang, Xinjun; Qian, Lijun; Li, Juan

doi:10.1002/app.52064

Cited by 5 publications

(3 citation statements)

References 37 publications

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“…Considering the outcomes of LOI and UL‐94 experiments, it is not hard to find that the EG/PPA composite at proper mass ratio can enhance flame retardancy, smoke inhibition, thermal stability, and reduce toxic gas release of EVA significantly. Compared with other FRs reported in literature, 29–32 the FRE of EG/PPA composite is rather high in that just 10 wt% loading can endow EVA with excellent fire safety and heat stableness.…”

Section: Resultsmentioning

confidence: 79%

Concurrently improving fire safety and processability of ethylene vinyl acetate copolymer by expandable graphite and polyphosphoric acid

et al. 2023

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Ethylene vinyl acetate copolymer (EVA) was modified by expandable graphite (EG) and polyphosphoric acid (PPA) in melt state and the obtained EVA/EG/PPA composite was studied regarding its fire behavior, thermal endurance, water resistivity, processability, and mechanical property. The outcomes evince that the combination of EG and PPA in proper mass ratio can improve fire retardancy, thermal stability, processability, and reduce smoke and toxic gas releases of EVA upon combustion significantly. The EG/PPA combination exhibits very high flame retardant efficiency to EVA in that only 10 wt% loading is enough to make EVA obtain V‐0 rating in UL‐94 test. Moreover, the flame‐retarded EVA/EG/PPA composite displays excellent water resistance and acceptable mechanical property. The EVA/EG/PPA (90/7.5/2.5) composite can produce coherent intumescent char on composite surface, which has good heat endurance and hinders heat transmission from fire to interior of composite. The flame retardation occurs in condensed phase and the intumescent char plays a pivotal role. The presence of PPA endows EVA composite with good melt flowability, which has presented a striking contrast to other flame retardants.Highlights The combination of EG and PPA has very high flame retardant efficiency to EVA. The EVA/EG/PPA composite has better fire safety and processability than EVA. The EVA/EG/PPA composite still maintains acceptable mechanical property. The expanded char from EVA/EG/PPA composite hinders heat transfer effectively.

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Section: Resultsmentioning

confidence: 79%

Concurrently improving fire safety and processability of ethylene vinyl acetate copolymer by expandable graphite and polyphosphoric acid

et al. 2023

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“…As one of the commercially inorganic flame retardants, ammonium polyphosphate (APP) is widely utilized to be a main or synergistic agent of intumescent flame retardants in the majority of polymer materials, for example, polypropylene, , ethylene vinyl acetate, , and epoxy resins − resulting from the friendly environment and flame-retardant synergism. Similar to other inorganic flame retardants, how to raise the efficiency of APP in flame-retardant EP composites attracts the researchers’ attention.…”

Section: Introductionmentioning

confidence: 99%

Facile Construction of Inorganic Phosphorus/Boron-Layered Double Hydroxide Complexes for Highly Efficient Fire-Safety Epoxy Resin

Shao

Wang

Lin

et al. 2023

ACS Appl. Polym. Mater.

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For inorganic flame retardants, facile fabrication and high-efficiency fire safety without compromising the mechanical property of the matrix are still significant challenges. Here, nanolayered double hydroxide containing boron constructed on the surface of ammonium polyphosphate (APP) complexes (B-LDH@APP) is prepared by a simple in situ coprecipitation technology to reduce the fire hazard and improves the mechanical performances of epoxy resin (EP). The as-obtained 4B-LDH@APP/EP achieves the UL-94 V-0 rating and presents superior flame-safety performance. With respect to the 4APP/EP, the fire growth rate (FIGRA), the peak heat release rate (pHRR), and the peak smoke production rate (pSPR) of 4B-LDH@APP/EP decrease by 77.8, 57.3, and 52.6%, respectively. This is mainly attributed to the excellent synergistic flame-retardant effect among boron, LDH, and APP, which can accelerate the generation of compact charring residual with a good microstructure during combustion of B-LDH@APP/EP composites. Furthermore, B-LDH@APP slightly affects the mechanical performances of the EP matrix due to the upgraded interfacial interaction.

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“…As one of the commercially inorganic ame retardants, APP is widely utilized to be main or synergistic agent of intumescent ame retardants in the majority of polymer materials, for example, polypropylene, [14,15] ethylene vinyl acetate [16,17] as well as epoxy resins [18][19][20] resulting from the friendly environment and ame-retardant synergism. Similar to other inorganic ame retardants, how to raise the e ciency of APP in ame retardant EP composites attracts the researchers' attention.…”

Section: Introductionmentioning

confidence: 99%

Facile Constructing Inorganic Phosphorus/boron-layered Double Hydroxide Complexes for Highly Efficient Fire-safety Epoxy Resin

Shao

Wang

Song

et al. 2022

Preprint

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Concerning inorganic flame retardants, the facile fabrication and high-efficiency fire safety without compromising the mechanical property of matrix are still significant challenges. Here, nano-layered double hydroxide containing boron constructed on the surface of ammonium polyphosphate complexes (B-LDH@APP) is prepared by a simple in-situ coprecipitation technology to reduce the fire hazard and improve mechanical performances of epoxy resin (EP). The as-obtained 4B-LDH@APP/EP achieves the UL-94 V-0 rating and presents superior flame-safety performance. With respect to the 4APP/EP, the fire growth rate, the peak heat release rate, and the peak smoke production rate of 4B-LDH@APP/EP decrease by 77.8%, 57.3%, and 52.6%, respectively. The reason is mainly contributed to excellent synergistic flame-retardant effect among boron, LDH, and APP, which can accelerate the generation of compact charring residual with good microstructure during combustion of B-LDH@APP/EP composites. Furthermore, B-LDH@APP slightly affects the mechanical performances of EP matrix due to the upgraded interfacial interaction.

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Effect of amino acid‐triazine copolymer on intumescent flame retardant ethylene‐vinyl acetate

Cited by 5 publications

References 37 publications

Concurrently improving fire safety and processability of ethylene vinyl acetate copolymer by expandable graphite and polyphosphoric acid

Concurrently improving fire safety and processability of ethylene vinyl acetate copolymer by expandable graphite and polyphosphoric acid

Facile Construction of Inorganic Phosphorus/Boron-Layered Double Hydroxide Complexes for Highly Efficient Fire-Safety Epoxy Resin

Facile Constructing Inorganic Phosphorus/boron-layered Double Hydroxide Complexes for Highly Efficient Fire-safety Epoxy Resin

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