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Song K, Bi X, Yu C, Pan YT, Xiao P, Wang J, Song JI, He J, Yang R. Structure of Metal-Organic Frameworks Eco-Modulated by Acid-Base Balance toward Biobased Flame Retardant in Polyurea Composites. ACS APPLIED MATERIALS & INTERFACES 2024. [PMID: 38498312 DOI: 10.1021/acsami.4c02187] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/20/2024]
Abstract
Biobased-functionalized metal-organic frameworks (Bio-FUN-MOFs) stand out from the crowd of candidates in the flame-retardant field due to their multipathway flame-retardant mechanisms and green synthesis processes. However, exploring and designing Bio-FUN-MOFs tend to counteract the problem of compromising the flame-retardant advantages of MOFs themselves, which inevitably results in a waste of resources. Herein, a strategy in which MOFs are ecologically regulated through acid-base balance is presented for controllable preparation of Bio-FUN-MOFs by two birds with one stone, i.e., higher flame-retardant element loading and retention of more MOF structures. Specifically, the buffer layer is created on the periphery of ZIF-67 by weak etching of biobased alkali arginine to resist the excessive etching of ZIF-67 by phytic acid when loading phosphorus source and to preserve the integrity of internal crystals as much as possible. As a proof of concept, ZIF-67 was almost completely etched out by phytic acid in the absence of arginine. The arginine and phytic acid-functionalized ZIF-67 with yolk@shell structure (ZIF@Arg-Co-PA) obtained by this strategy, as a biobased flame retardant, reduces fire hazards for polyurea composites. At only 5 wt % loading, ZIF@Arg-Co-PA imparted polyurea composites with a limiting oxygen index of 23.2%, and the peaks of heat release rate, total heat release, and total smoke production were reduced by 43.8, 32.3, and 34.3%, respectively, compared to neat polyurea. Additionally, the prepared polyurea composites have acceptable mechanical properties. This work will shed light on the advanced structural design of polymer composites with excellent fire safety, especially environmentally friendly and efficient biobased MOF flame retardants.
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Affiliation(s)
- Kunpeng Song
- National Engineering Research Center of Flame Retardant Materials, School of Materials Science & Engineering, Beijing Institute of Technology, Beijing 100081, P. R. China
| | - Xue Bi
- National Engineering Research Center of Flame Retardant Materials, School of Materials Science & Engineering, Beijing Institute of Technology, Beijing 100081, P. R. China
| | - Chuang Yu
- National Engineering Research Center of Flame Retardant Materials, School of Materials Science & Engineering, Beijing Institute of Technology, Beijing 100081, P. R. China
| | - Ye-Tang Pan
- National Engineering Research Center of Flame Retardant Materials, School of Materials Science & Engineering, Beijing Institute of Technology, Beijing 100081, P. R. China
| | - Peng Xiao
- State Grid Jiangsu Electric Power Co., Ltd. Research Institute, Nanjing 211103, Jiangsu, P. R. China
| | - Junling Wang
- Jiangsu Key Laboratory of Hazardous Chemicals Safety and Control, College of Safety Science and Engineering, Nanjing Tech University, Nanjing 211816, China
| | - Jung-Il Song
- School of Mechatronics, Changwon National University, Changwon 641-773, Republic of Korea
| | - Jiyu He
- National Engineering Research Center of Flame Retardant Materials, School of Materials Science & Engineering, Beijing Institute of Technology, Beijing 100081, P. R. China
| | - Rongjie Yang
- National Engineering Research Center of Flame Retardant Materials, School of Materials Science & Engineering, Beijing Institute of Technology, Beijing 100081, P. R. China
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Song K, Bi X, Yu C, Pan YT, Vahabi H, Realinho V, He J, Yang R. A Gas-Steamed Route to Mesoporous Open Metal-Organic Framework Cages Enhancing Flame Retardancy and Smoke Suppression of Polyurea. ACS APPLIED MATERIALS & INTERFACES 2024; 16:7617-7630. [PMID: 38315971 DOI: 10.1021/acsami.3c17625] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/07/2024]
Abstract
Up to now, metal-organic frameworks (MOFs) with open nanostructures have shown outstanding capabilities in trapping smoke particles compared to the original MOFs. However, only a few MOF-based strategies have been reported to synthesize hierarchical porous cages thus far, which are mainly restricted to environmentally unfriendly wet-chemical liquid methods. Herein, as a proof-of-concept, a gas-steamed metal-organic framework approach was designed to fabricate a series of cheeselike open cages with hierarchical porosity. Briefly, zeolitic imidazolate framework-67 (ZIF-67) and phytic acid were employed as precursor and etchant, respectively. Abandoning the conventional wet-chemical method, the coordination bond of ZIF-67 was cleaved by acidic steam, forming an open framework with a high specific surface area and a hierarchical porous structure. The universality of this method was also confirmed by the selection of different etchants. Impressively, they also show outstanding fume-toxic adsorption capability and labyrinth effects based on abundant and complex porous channels. At only 5 wt % loading, Co3O4@open ZIF-67 cage-2 (Co3O4@OZC-2) imparted polyurea (PUA) composites with a 21.2% limiting oxygen index, and the peak of heat release rate, total heat release, and total smoke production were reduced by around 37.5, 25.5, and 40.4%, respectively, compared to neat PUA. This work will shed light on the advanced structural design of polymer composites with high fire safety, especially smoke suppression performance, so as to obtain more feasible applications.
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Affiliation(s)
- Kunpeng Song
- National Engineering Research Center of Flame Retardant Materials, School of Materials Science & Engineering, Beijing Institute of Technology, Beijing 100081, P. R. China
| | - Xue Bi
- National Engineering Research Center of Flame Retardant Materials, School of Materials Science & Engineering, Beijing Institute of Technology, Beijing 100081, P. R. China
| | - Chuang Yu
- National Engineering Research Center of Flame Retardant Materials, School of Materials Science & Engineering, Beijing Institute of Technology, Beijing 100081, P. R. China
| | - Ye-Tang Pan
- National Engineering Research Center of Flame Retardant Materials, School of Materials Science & Engineering, Beijing Institute of Technology, Beijing 100081, P. R. China
| | - Henri Vahabi
- CentraleSupélec, LMOPS, Université de Lorraine, F-57000 Metz, France
| | - Vera Realinho
- Poly2 Group, Department of Materials Science and Engineering, School of Industrial, Aerospace and Audiovisual Engineering of Terrassa, Universitat Politècnica de Catalunya (UPC BarcelonaTech), C/de Colom, 11, 08222 Terrassa, Spain
| | - Jiyu He
- National Engineering Research Center of Flame Retardant Materials, School of Materials Science & Engineering, Beijing Institute of Technology, Beijing 100081, P. R. China
| | - Rongjie Yang
- National Engineering Research Center of Flame Retardant Materials, School of Materials Science & Engineering, Beijing Institute of Technology, Beijing 100081, P. R. China
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Li J, Zhao H, Liu H, Sun J, Wu J, Liu Q, Zheng Y, Zheng P. Recent advances in metal-family flame retardants: a review. RSC Adv 2023; 13:22639-22662. [PMID: 37502822 PMCID: PMC10369043 DOI: 10.1039/d3ra03536k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2023] [Accepted: 07/19/2023] [Indexed: 07/29/2023] Open
Abstract
The use of polymer materials is inextricably linked to our manufacturing life. However, most of them are easily combusted in the air and the combustion process generates a large amount of toxic fumes and dangerous smoke. This can result in injuries and property damage, as well as limiting their use. It is essential to enhance the flame-retardant properties and smoke suppression performance by using multiple flame retardants. Metal-based flame retardants have a unique chemical composition. They are environmentally friendly flame retardants, which can impart good smoke suppression, flame retardancy to polymers and further reduce the production of toxic gases. The differences in the compounds formed between the transition metals and the main group metals make them act differently as flame retardants for polymers. As a result, this study presents the research progress and flame-retardant mechanism of flame-retardant polymers for flame retardants from different groups of metals in the periodic table of elements in a systematic manner. In view of the differences between the main group metals and transition metals, the mechanism of their application in flame retardant polymer materials is carefully detailed, as are their distinct advantages and disadvantages. And ultimately, prospects for the development of transition metals and main group metals are outlined. It is hoped that this paper will provide valuable references and insights for scholars in the field.
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Affiliation(s)
- Junwei Li
- College of Civil Aviation Safety Engineering, Civil Aviation Flight University of China Guanghan 618307 P. R. China
- Civil Aircraft Fire Science and Safety Engineering Key Laboratory of Sichuan Province Guanghan 618307 P. R. China
| | - Haihan Zhao
- College of Civil Aviation Safety Engineering, Civil Aviation Flight University of China Guanghan 618307 P. R. China
- Civil Aircraft Fire Science and Safety Engineering Key Laboratory of Sichuan Province Guanghan 618307 P. R. China
| | - Huaiyin Liu
- College of Civil Aviation Safety Engineering, Civil Aviation Flight University of China Guanghan 618307 P. R. China
- Civil Aircraft Fire Science and Safety Engineering Key Laboratory of Sichuan Province Guanghan 618307 P. R. China
| | - Jichang Sun
- College of Civil Aviation Safety Engineering, Civil Aviation Flight University of China Guanghan 618307 P. R. China
- Civil Aircraft Fire Science and Safety Engineering Key Laboratory of Sichuan Province Guanghan 618307 P. R. China
| | - Jing Wu
- College of Civil Aviation Safety Engineering, Civil Aviation Flight University of China Guanghan 618307 P. R. China
- Civil Aircraft Fire Science and Safety Engineering Key Laboratory of Sichuan Province Guanghan 618307 P. R. China
| | - Quanyi Liu
- College of Civil Aviation Safety Engineering, Civil Aviation Flight University of China Guanghan 618307 P. R. China
- Civil Aircraft Fire Science and Safety Engineering Key Laboratory of Sichuan Province Guanghan 618307 P. R. China
| | - Yun Zheng
- Key Laboratory of Optoelectronic Chemical Materials and Devices, Ministry of Education, Jianghan University Wuhan 430056 P. R. China
| | - Penglun Zheng
- College of Civil Aviation Safety Engineering, Civil Aviation Flight University of China Guanghan 618307 P. R. China
- Civil Aircraft Fire Science and Safety Engineering Key Laboratory of Sichuan Province Guanghan 618307 P. R. China
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Li J, Zheng P, Liu H, Sun J, Meng Y, Zhao H, Wu J, Zheng Y, Liu Q. An Organometallic Flame Retardant Containing P/N/S-Cu 2+ for Epoxy Resins with Reduced Fire Hazard and Smoke Toxicity. ACS OMEGA 2023; 8:16080-16093. [PMID: 37179617 PMCID: PMC10173448 DOI: 10.1021/acsomega.2c08226] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/27/2022] [Accepted: 04/19/2023] [Indexed: 05/15/2023]
Abstract
Epoxy resins (EPs) have superior physical and chemical features and are used in a wide range of applications in everyday life and engineering. However, its poor flame-retardant performance has hindered its wide application. Over the past decades of extensive research, metal ions have received increasing attention for their highly effective smoke suppression properties. In this work, we used an "aldol-ammonia condensation" reaction to structure the Schiff base structure, together with grafting using the reactive group on 9,10-dihydro-9-oxa-10-phospha-10-oxide (DOPO). Then, Cu2+ was used to replace Na+ to obtain DCSA-Cu flame retardant with smoke suppression properties. Attractively, DOPO and Cu2+ can collaborate, thus effectively improving EP fire safety. At the same time, the addition of a double-bond initiator at low temperatures allows small molecules to form in situ macromolecular chains through the EP network, enhancing the tightness of the EP matrix. With the addition of 5 wt % flame retardant, the EP shows well-defined fire resistance, and the limiting oxygen index (LOI) reaches 36% with a significant reduction in the values of peak heat release (29.72%). In addition, the glass-transition temperature (Tg) of the samples with in situ formations of macromolecular chains was improved, and the physical properties of EP materials are also retained.
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Affiliation(s)
- Junwei Li
- College
of Civil Aviation Safety Engineering, Civil
Aviation Flight University of China, Guanghan 618307, P. R. China
- Civil
Aircraft Fire Science and Safety Engineering Key Laboratory of Sichuan
Province, Guanghan 618307, P. R. China
| | - Penglun Zheng
- College
of Civil Aviation Safety Engineering, Civil
Aviation Flight University of China, Guanghan 618307, P. R. China
- Civil
Aircraft Fire Science and Safety Engineering Key Laboratory of Sichuan
Province, Guanghan 618307, P. R. China
| | - Huaiyin Liu
- College
of Civil Aviation Safety Engineering, Civil
Aviation Flight University of China, Guanghan 618307, P. R. China
- Civil
Aircraft Fire Science and Safety Engineering Key Laboratory of Sichuan
Province, Guanghan 618307, P. R. China
- Key
Laboratory of Optoelectronic Chemical Materials and Devices, Ministry
of Education, Jianghan University, Wuhan 430056, P. R. China
| | - Jichang Sun
- College
of Civil Aviation Safety Engineering, Civil
Aviation Flight University of China, Guanghan 618307, P. R. China
- Civil
Aircraft Fire Science and Safety Engineering Key Laboratory of Sichuan
Province, Guanghan 618307, P. R. China
- Key
Laboratory of Optoelectronic Chemical Materials and Devices, Ministry
of Education, Jianghan University, Wuhan 430056, P. R. China
| | - Yawei Meng
- College
of Civil Aviation Safety Engineering, Civil
Aviation Flight University of China, Guanghan 618307, P. R. China
- Civil
Aircraft Fire Science and Safety Engineering Key Laboratory of Sichuan
Province, Guanghan 618307, P. R. China
| | - Haihan Zhao
- College
of Civil Aviation Safety Engineering, Civil
Aviation Flight University of China, Guanghan 618307, P. R. China
- Civil
Aircraft Fire Science and Safety Engineering Key Laboratory of Sichuan
Province, Guanghan 618307, P. R. China
| | - Jing Wu
- College
of Civil Aviation Safety Engineering, Civil
Aviation Flight University of China, Guanghan 618307, P. R. China
- Civil
Aircraft Fire Science and Safety Engineering Key Laboratory of Sichuan
Province, Guanghan 618307, P. R. China
| | - Yun Zheng
- Key
Laboratory of Optoelectronic Chemical Materials and Devices, Ministry
of Education, Jianghan University, Wuhan 430056, P. R. China
- .
| | - Quanyi Liu
- College
of Civil Aviation Safety Engineering, Civil
Aviation Flight University of China, Guanghan 618307, P. R. China
- Civil
Aircraft Fire Science and Safety Engineering Key Laboratory of Sichuan
Province, Guanghan 618307, P. R. China
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Composites Filled with Metal Organic Frameworks and Their Derivatives: Recent Developments in Flame Retardants. Polymers (Basel) 2022; 14:polym14235279. [PMID: 36501673 PMCID: PMC9740387 DOI: 10.3390/polym14235279] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2022] [Revised: 11/20/2022] [Accepted: 11/28/2022] [Indexed: 12/11/2022] Open
Abstract
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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6
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Lyu P, Hou Y, Wang R, Ma M, Chen Y, Xing Q, Ma Y, Wang S, Wu Y, Huang W. Synthesis of
ZnFe
2
O
4
@
Mg‐Al‐SDBS LDH
composites for regulating heat and fire safety properties of polyurea. POLYM ADVAN TECHNOL 2022. [DOI: 10.1002/pat.5859] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Ping Lyu
- School of Civil Engineering Qingdao University of Technology Qingdao People's Republic of China
| | - Yongbo Hou
- School of Civil Engineering Qingdao University of Technology Qingdao People's Republic of China
| | - Rongzhen Wang
- School of Civil Engineering Qingdao University of Technology Qingdao People's Republic of China
- Xinjiang Production and Construction Corps, Second Division Twenty‐second Mission Economic Development Office Xinjiang People's Republic of China
| | - Mingliang Ma
- School of Civil Engineering Qingdao University of Technology Qingdao People's Republic of China
| | - Yan Chen
- School of Civil Engineering Qingdao University of Technology Qingdao People's Republic of China
| | - Qiyang Xing
- Tengzhou Comprehensive Inspection and Testing Center Tengzhou People's Republic of China
| | - Yong Ma
- School of Material Science and Engineering Shandong University of Science and Technology Qingdao People's Republic of China
| | - Shuang Wang
- School of Civil Engineering Qingdao University of Technology Qingdao People's Republic of China
| | - Yuefeng Wu
- School of Civil Engineering Qingdao University of Technology Qingdao People's Republic of China
| | - Weibo Huang
- School of Civil Engineering Qingdao University of Technology Qingdao People's Republic of China
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7
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Synthesis of sugar gourd-like metal organic framework-derived hollow nanocages nickel molybdate@cobalt-nickel layered double hydroxide for flame retardant polyurea. J Colloid Interface Sci 2022; 616:234-245. [DOI: 10.1016/j.jcis.2022.01.101] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2021] [Revised: 01/15/2022] [Accepted: 01/17/2022] [Indexed: 01/10/2023]
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