Surface modification of α‐zirconium phosphate by zeolitic imidazolate frameworks‐8 and its effect on improving the fire safety of polyurethane elastomer

Xu, Baoling; Xu, Wenzong; Liu, Yucheng; Chen, Rui; Wu, Li; Wu, Yun; Yang, Zuotang

doi:10.1002/pat.4404

Cited by 24 publications

(8 citation statements)

References 44 publications

(71 reference statements)

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“…It can be seen that the smoke suppression effect of ZIF nanosheets is obvious. According to the results of the TSP curve in Figure 5(D), the TSP during the decomposition of the TPU composites with ZIF nanosheets is also significantly reduced, on the one hand, which may be due to the fact that ZIF nanosheets catalyzed the early‐stage decomposition of composite materials, and N 2 and NH 3 generated by the decomposition of ZIF nanosheets dilute aromatic molecules generated by TPU combustion, which hinders the formation of smoke 29 ; On the other hand, the formation of metal oxides by ZIF nanoparticles during combustion promotes the formation of carbon layers, adsorbing small molecules of smoke on the surface of the carbon layer, and reducing the release of smoke, 30 and according to the values of TSP, it can be seen that the smoke produced by the combustion of composite materials with Zn&Co‐ZIF‐L is less than that of Zn‐ZIF‐L and Co‐ZIF‐L alone. It can be inferred that Zn and Co have a certain synergistic effect on suppress the generation of smoke.…”

Section: Resultsmentioning

confidence: 99%

Effect of two‐dimensional zeolitic imidazolate frameworks‐L on flame retardant property of thermoplastic polyurethane elastomers

Cheng

Zhong

et al. 2021

Polymers for Advanced Techs

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In this study, three kinds of two‐dimensional nanoplates consisting of zinc zeolite imidazole frameworks‐L (Zn‐ZIF‐L), cobalt zeolite imidazole frameworks‐L (Co‐ZIF‐L), and Zinc‐Cobalt hybrid zeolite imidazole frameworks‐L (Zn&Co‐ZIF‐L), were prepared by a green and nonpolluting method. Each of the three nanoplates was added to thermoplastic polyurethane elastomers (TPU) at 3 wt% to investigate their performance in flame retardancy and smoke suppression of TPU. Compared with pure TPU, the limiting oxygen index values of Zn‐ZIF‐L/TPU, Co‐ZIF‐L/TPU, and Zn&Co‐ZIF‐L/TPU increased from 23.2% for pure TPU to 25.3, 26.0, and 25.7%, respectively; the total heat release of these three composite materials decreased by 7.8, 11.4, and 9.3%, their peak heat release rate decreased by 28.8, 42.8, and 43.8% and their peak smoke production rate reduced by 50, 45, and 51.5%, respectively. All three nanoplates showed good flame retardancy and smoke suppression properties. In addition, through thermogravimetric/Fourier transform infrared spectroscopy (TG‐FTIR) analysis of the TPU composite and the X‐ray diffraction analysis of residual char, the specific flame‐retardant mechanisms and smoke suppression mechanisms were explored.

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Section: Resultsmentioning

confidence: 99%

Effect of two‐dimensional zeolitic imidazolate frameworks‐L on flame retardant property of thermoplastic polyurethane elastomers

Cheng

Zhong

et al. 2021

Polymers for Advanced Techs

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“…In addition to the above-mentioned phosphine and nitrogen compounds that are used more synergistically with MOFs, there are some others that have been explored by researchers and have shown good results, such as phosphonates [ 85 ], α-zirconium phosphate [ 86 ], and polyaniline [ 87 ]. Some of the organic ligands in MOFs contain -NH 2 .…”

Section: Hybrid Of Phosphorus–nitrogen Compounds and Mofs As Flame Re...mentioning

confidence: 99%

Composites Filled with Metal Organic Frameworks and Their Derivatives: Recent Developments in Flame Retardants

Lyu

Hou

et al. 2022

Polymers

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Polymer matrix is vulnerable to fire hazards and needs to add flame retardants to enhance its performance and make its application scenarios more extensive. At this stage, it is more necessary to add multiple flame-retardant elements and build a multi-component synergistic system. Metal organic frameworks (MOFs) have been studied for nearly three decades since their introduction. MOFs are known for their structural advantages but have only been applied to flame-retardant polymers for a relatively short period of time. In this paper, we review the development of MOFs utilized as flame retardants and analyze the flame-retardant mechanisms in the gas phase and condensed phase from the original MOF materials, modified MOF composites, and MOF-derived composites as flame retardants, respectively. The effects of carbon-based materials, phosphorus-based materials, nitrogen-based materials, and biomass on the flame-retardant properties of polymers are discussed in the context of MOFs. The construction of MOF multi-structured flame retardants is also introduced, and a variety of MOF-based flame retardants with different morphologies are shown to broaden the ideas for subsequent research.

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“…Among the inorganic materials, transition metal containing compounds are reported to functionalize with phosphorus FRs as a feasible way to prepare highly efficient FRs [ 66 ]. A ZIF-8 modified phosphorus containing layered α-zirconium phosphate (α-ZrP) was synthesized by electrostatic force [ 67 ]. Polyurethane (PU) composites with the addition of these fillers showed 45.6% and 40.6% reduction in pHRR and TSP, respectively.…”

Section: Mof Applied In Fire Retardancy Researchmentioning

confidence: 99%

Recent Progress on Metal–Organic Framework and Its Derivatives as Novel Fire Retardants to Polymeric Materials

Zhang

et al. 2020

Nano-Micro Lett.

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High flammability of polymers has become a major issue which has restricted its applications. Recently, highly crystalline materials and metal–organic frameworks (MOFs), which consisted of metal ions and organic linkers, have been intensively employed as novel fire retardants (FRs) for a variety of polymers (MOF/polymer). The MOFs possessed abundant transition metal species, fire-retardant elements and potential carbon source accompanied with the facile tuning of the structure and property, making MOF, its derivatives and MOF hybrids promising for fire retardancy research. The recent progress and strategies to prepare MOF-based FRs are emphasized and summarized. The fire retardancy mechanisms of MOF/polymer composites are explained, which may guide the future design for efficient MOF-based FRs. Finally, the challenges and prospects related to different MOF-based FRs are also discussed and aim to provide a fast and holistic overview, which is beneficial for researchers to quickly get up to speed with the latest development in this field.

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Surface modification of α‐zirconium phosphate by zeolitic imidazolate frameworks‐8 and its effect on improving the fire safety of polyurethane elastomer

Cited by 24 publications

References 44 publications

Effect of two‐dimensional zeolitic imidazolate frameworks‐L on flame retardant property of thermoplastic polyurethane elastomers

Effect of two‐dimensional zeolitic imidazolate frameworks‐L on flame retardant property of thermoplastic polyurethane elastomers

Composites Filled with Metal Organic Frameworks and Their Derivatives: Recent Developments in Flame Retardants

Recent Progress on Metal–Organic Framework and Its Derivatives as Novel Fire Retardants to Polymeric Materials

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