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Du L, Wang S, Zhu P, Jiang Z. Eco-friendly phosphorus-free flame-retardant coating for microfiber synthetic leather via alginate-based layer-by-layer technology. Int J Biol Macromol 2024; 258:129007. [PMID: 38151082 DOI: 10.1016/j.ijbiomac.2023.129007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2023] [Revised: 12/20/2023] [Accepted: 12/22/2023] [Indexed: 12/29/2023]
Abstract
The excellent comprehensive properties of microfiber synthetic leathers have led to their wide application in various aspects of our lives. However, the issue of flammability remains a significant challenge that needs to be addressed. Nowadays, the bio-based chemicals used in the flame-retardant materials have extremely grabbed our eyes. Herein, we developed an ecologically friendly flame-retardant microfiber synthetic leather using phosphorus-free layer-by-layer assembly technology (LBL) based on natural polysaccharide alginate (SA) coupled with polyethyleneimine (PEI) and 3-aminopropyltriethoxysilane (APTES). The effect of different LBL coating systems on the flame retardancy of microfiber synthetic leather was investigated. The results demonstrated that the introduction of APTES can completely inhibit the melt-dripping by enhancing char formation through silica elements. Furthermore, the trinary coating system consisting of SA/APTES/PEI exhibited excellent flame retardancy by combining gas-phase action from PEI and condensed-phase function from APTES. This modified microfiber synthetic leather showed a significantly higher limiting oxygen index (LOI) value of 33.0 % with no molten droplet. Additionally, the SA-based coating slightly suppressed the heat release, resulting in a 20 % reduction in total heat release during the combustion test. Overall, this work presents a facile and environmentally-friendly approach for achieving flame-retardant and anti-dripping microfiber synthetic leather.
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Affiliation(s)
- Lei Du
- Institute of Functional Textiles and Advanced Materials, College of Textiles and Clothing, National Engineering Research Center for Advanced Fire-Safety Materials D & A (Shandong), Qingdao Key Laboratory of Flame-Retardant Textile Materials, Qingdao University, Qingdao 266071, China
| | - Shijie Wang
- Institute of Functional Textiles and Advanced Materials, College of Textiles and Clothing, National Engineering Research Center for Advanced Fire-Safety Materials D & A (Shandong), Qingdao Key Laboratory of Flame-Retardant Textile Materials, Qingdao University, Qingdao 266071, China
| | - Ping Zhu
- Institute of Functional Textiles and Advanced Materials, College of Textiles and Clothing, National Engineering Research Center for Advanced Fire-Safety Materials D & A (Shandong), Qingdao Key Laboratory of Flame-Retardant Textile Materials, Qingdao University, Qingdao 266071, China
| | - Zhiming Jiang
- Institute of Functional Textiles and Advanced Materials, College of Textiles and Clothing, National Engineering Research Center for Advanced Fire-Safety Materials D & A (Shandong), Qingdao Key Laboratory of Flame-Retardant Textile Materials, Qingdao University, Qingdao 266071, China.
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Cherednichenko K, Kopitsyn D, Smirnov E, Nikolaev N, Fakhrullin R. Fireproof Nanocomposite Polyurethane Foams: A Review. Polymers (Basel) 2023; 15:polym15102314. [PMID: 37242889 DOI: 10.3390/polym15102314] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2023] [Revised: 05/08/2023] [Accepted: 05/11/2023] [Indexed: 05/28/2023] Open
Abstract
First introduced in 1954, polyurethane foams rapidly became popular because of light weight, high chemical stability, and outstanding sound and thermal insulation properties. Currently, polyurethane foam is widely applied in industrial and household products. Despite tremendous progress in the development of various formulations of versatile foams, their use is hindered due to high flammability. Fire retardant additives can be introduced into polyurethane foams to enhance their fireproof properties. Nanoscale materials employed as fire-retardant components of polyurethane foams have the potential to overcome this problem. Here, we review the recent (last 5 years) progress that has been made in polyurethane foam modification using nanomaterials to enhance its flame retardance. Different groups of nanomaterials and approaches for incorporating them into foam structures are covered. Special attention is given to the synergetic effects of nanomaterials with other flame-retardant additives.
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Affiliation(s)
- Kirill Cherednichenko
- Department of Physical and Colloid Chemistry, Faculty of Chemical and Environmental Engineering, National University of Oil and Gas "Gubkin University", Moscow 119991, Russia
| | - Dmitry Kopitsyn
- Department of Physical and Colloid Chemistry, Faculty of Chemical and Environmental Engineering, National University of Oil and Gas "Gubkin University", Moscow 119991, Russia
| | - Egor Smirnov
- Department of Physical and Colloid Chemistry, Faculty of Chemical and Environmental Engineering, National University of Oil and Gas "Gubkin University", Moscow 119991, Russia
| | - Nikita Nikolaev
- Department of Physical and Colloid Chemistry, Faculty of Chemical and Environmental Engineering, National University of Oil and Gas "Gubkin University", Moscow 119991, Russia
| | - Rawil Fakhrullin
- Department of Physical and Colloid Chemistry, Faculty of Chemical and Environmental Engineering, National University of Oil and Gas "Gubkin University", Moscow 119991, Russia
- Institute of Fundamental Medicine and Biology, Kazan Federal University, Kreml Uramı 18, Kazan 420008, Russia
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3
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Graphene-based flame-retardant polyurethane: a critical review. Polym Bull (Berl) 2022. [DOI: 10.1007/s00289-022-04585-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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Abrishamkar S, Mohammadi A, De La Vega J, Wang DY, Kalali EN. Layer-by-layer assembly of calixarene modified GO and LDH nanostructures on flame retardancy, smoke suppression, and dye adsorption behavior of flexible polyurethane foams. Polym Degrad Stab 2022. [DOI: 10.1016/j.polymdegradstab.2022.110242] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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Li S, Yang B, Lin T, Yao Q. Preparation of TPU/GO/Mg‐Al LDHs Hybrid Material With Enhancing Flame Retardancy and Smoke Suppression Performance. ChemistrySelect 2022. [DOI: 10.1002/slct.202203411] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Affiliation(s)
- Shaoquan Li
- School of Materials Science and Engineering Guangdong University of Petrochemical Technology No.1, Kechuang Road, Maonan Districts Maoming Guangdong Province 525000 P.R. China
| | - Bo Yang
- School of Materials Science and Engineering Guangdong University of Petrochemical Technology No.1, Kechuang Road, Maonan Districts Maoming Guangdong Province 525000 P.R. China
| | - Tingjian Lin
- School of Materials Science and Engineering Guangdong University of Petrochemical Technology No.1, Kechuang Road, Maonan Districts Maoming Guangdong Province 525000 P.R. China
| | - Qi Yao
- School of Materials Science and Engineering Guangdong University of Petrochemical Technology No.1, Kechuang Road, Maonan Districts Maoming Guangdong Province 525000 P.R. China
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6
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Yadav A, de Souza FM, Dawsey T, Gupta RK. Recent Advancements in Flame-Retardant Polyurethane Foams: A Review. Ind Eng Chem Res 2022. [DOI: 10.1021/acs.iecr.2c02670] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/09/2023]
Affiliation(s)
- Anilkumar Yadav
- National Institute for Materials Advancement, Pittsburg State University, Pittsburg, Kansas 66762, United States
| | - Felipe M. de Souza
- National Institute for Materials Advancement, Pittsburg State University, Pittsburg, Kansas 66762, United States
| | - Tim Dawsey
- National Institute for Materials Advancement, Pittsburg State University, Pittsburg, Kansas 66762, United States
| | - Ram K. Gupta
- National Institute for Materials Advancement, Pittsburg State University, Pittsburg, Kansas 66762, United States
- Department of Chemistry, Pittsburg State University, Pittsburg, Kansas 66762, United States
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Xu YJ, Qu LY, Liu Y, Zhu P. An overview of alginates as flame-retardant materials: Pyrolysis behaviors, flame retardancy, and applications. Carbohydr Polym 2021; 260:117827. [DOI: 10.1016/j.carbpol.2021.117827] [Citation(s) in RCA: 51] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2021] [Revised: 02/11/2021] [Accepted: 02/12/2021] [Indexed: 12/15/2022]
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Wu Q, Liu C, Tang L, Yan Y, Qiu H, Pei Y, Sailor MJ, Wu L. Stable electrically conductive, highly flame-retardant foam composites generated from reduced graphene oxide and silicone resin coatings. SOFT MATTER 2021; 17:68-82. [PMID: 33147311 DOI: 10.1039/d0sm01540g] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
To acheive flexible polyurethane (PU) foam composites with stable electrical conductivity and high flame retardancy involved first coating of graphene oxide (GO) onto PU foam surfaces and then chemically reducing the GO with hydrazine to form reduced GO (RGO). The RGO-coated PU foam is then dipped into a solution containing silicone resin (SiR) and silica nano-particles and cured. The resulting composites (PU-RGO-SiR) show superior flame retardancy, thermal stability and mechanical stability relative to the PU starting materials or PU coated with either RGO or SiR alone. The electrical conductivity of the PU-RGO-SiR composites (as high as 118 S m-1 at room temperature) could almost be retained but with small loss of 9.5% of the original value after 150 cyclic compression. When the samples were subjected to a temperature range from -50 to 400 °C, the electrical conductivity could remain constant at -50 °C, 25 °C, 100 °C, 200 °C, and even at 300 °C and 400 °C; the electrical-conductivity exhibited mild vibration but the vibration range was not beyond 5.6%. Flame retardancy tests show that the limiting oxygen index (LOI) increases from 14.7% for the pure foam to 31.5% for PU-RGO-SiR, and the PU-RGO-SiR composites exhibit a 65% reduction in the peak heat release rate (pHRR) and a 30% reduction in total smoke release (TSR). Thus, stable electrically conductive and highly flame-retardant foam composites have potential applications even in a variety of harsh conditions like high temperature, flame, organic solvents, and external compression.
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Affiliation(s)
- Qian Wu
- Key Laboratory of Organosilicon Chemistry and Materials Technology of Ministry of Education, Hangzhou Normal University, Hangzhou, 311121, P. R. China.
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Exceptionally flame-retardant flexible polyurethane foam composites: synergistic effect of the silicone resin/graphene oxide coating. Front Chem Sci Eng 2020. [DOI: 10.1007/s11705-020-1988-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
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Chen W, Liu P, Min L, Zhou Y, Liu Y, Wang Q, Duan W. Non-covalently Functionalized Graphene Oxide-Based Coating to Enhance Thermal Stability and Flame Retardancy of PVA Film. NANO-MICRO LETTERS 2018; 10:39. [PMID: 30393688 PMCID: PMC6199081 DOI: 10.1007/s40820-018-0190-8] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/12/2017] [Accepted: 01/11/2018] [Indexed: 05/29/2023]
Abstract
The synergistic effect of conventional flame-retardant elements and graphene has received extensive attention in the development of a new class of flame retardants. Compared to covalent modification, the non-covalent strategy is simpler and expeditious and entirely preserves the original quality of graphene. Thus, non-covalently functionalized graphene oxide (FGO) with a phosphorus-nitrogen compound was successfully prepared via a one-pot process in this study. Polyethyleneimine and FGO were alternatively deposited on the surface of a poly(vinyl alcohol) (PVA) film via layer-by-layer assembly driven by electrostatic interaction, imparting excellent flame retardancy to the coated PVA film. The multilayer FGO-based coating formed a protective shield encapsulating the PVA matrix, effectively blocking the transfer of heat and mass during combustion. The coated PVA has a higher initial decomposition temperature of about 260 °C and a nearly 60% reduction in total heat release than neat PVA does. Our results may have a promising prospect for flame-retardant polymers.
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Affiliation(s)
- Wenhua Chen
- State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute of Sichuan University, Chengdu, 610065, People's Republic of China
| | - Pengju Liu
- State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute of Sichuan University, Chengdu, 610065, People's Republic of China
| | - Lizhen Min
- State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute of Sichuan University, Chengdu, 610065, People's Republic of China
| | - Yiming Zhou
- State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute of Sichuan University, Chengdu, 610065, People's Republic of China
| | - Yuan Liu
- State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute of Sichuan University, Chengdu, 610065, People's Republic of China.
| | - Qi Wang
- State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute of Sichuan University, Chengdu, 610065, People's Republic of China
| | - Wenfeng Duan
- State Key Laboratory of Special Functional Waterproof Materials, Beijing Oriental Yuhong Waterproof Technology Co. Ltd., Beijing, 101300, People's Republic of China
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Tewari A, Gandla S, Bohm S, McNeill CR, Gupta D. Highly Exfoliated MWNT-rGO Ink-Wrapped Polyurethane Foam for Piezoresistive Pressure Sensor Applications. ACS APPLIED MATERIALS & INTERFACES 2018; 10:5185-5195. [PMID: 29363302 DOI: 10.1021/acsami.7b15252] [Citation(s) in RCA: 65] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
Abstract
The fabrication of pressure sensors based on reduced graphene oxide (rGO) as the sensing material is challenging due to the intrinsic hydrophobic behavior of graphene oxide inks as well as the agglomeration of graphene oxide flakes after reduction. Hydrazine (a reducing agent) and a dual-component additive comprising benzisothiazolinone and methylisothiazolinone in appropriate proportion were used to synthesize a rGO ink with a hydrophilic nature. Utilizing this hydrophilic rGO ink mixed with multiwalled carbon nanotubes (MWNTs), a very simple, low-cost approach is demonstrated for the fabrication of a pressure sensor based on polyurethane (PU) foam coated with the MWNT-rGO ink (MWNT-rGO@PU foam). The MWNT-rGO@PU foam-based devices are shown to be versatile pressure sensors with the potential to detect both small-scale and large-scale movements. At low pressure (below 2.7 kPa, 50% strain), the formation of microcracks that scatter electrical charges results in a detectable increase in resistance suitable for detecting small-scale motion. At a higher pressure, the compressive contact of the coated faces of the PU foam results in a sharp decrease in resistance suitable for monitoring of large-scale motion. Moreover, these sensors exhibit good flexibility and reproducibility over 5000 cycles. The versatility of this sensor has been demonstrated in a wide range of applications, such as speech recognition, health monitoring, and body motion detection. The significant advantages of this sensor are that its cost is low, it is easy to fabricate, and it has a versatility that renders it favorable to health-monitoring applications.
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Affiliation(s)
- Amit Tewari
- Department of Materials Science and Engineering, Monash University , Wellington Road, Clayton, VIC 3800, Australia
| | | | - Siva Bohm
- Talga Technologies Ltd. , Cambridge Science Park, Unit 15-17 Milton Road, Cambridge CB4 0FQ, United Kingdom
| | - Christopher R McNeill
- Department of Materials Science and Engineering, Monash University , Wellington Road, Clayton, VIC 3800, Australia
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Jing J, Zhang Y, Tang X, Li X, Peng M, Fang Z. Combination of a bio-based polyphosphonate and modified graphene oxide toward superior flame retardant polylactic acid. RSC Adv 2018. [DOI: 10.1039/c7ra12224a] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Superior flame retardant polylactic acid (PLA) composites were prepared using bio-based polyphosphonate (BPPT) and polyethyleneimine-modified graphene oxide (M-GO) to be used as a flame retardant, the total amount of which is only 3 wt%.
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Affiliation(s)
- Jian Jing
- Laboratory of Polymer Materials and Engineering
- Ningbo Institute of Technology
- Zhejiang University
- Ningbo 315100
- China
| | - Yan Zhang
- Laboratory of Polymer Materials and Engineering
- Ningbo Institute of Technology
- Zhejiang University
- Ningbo 315100
- China
| | - Xinlei Tang
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization
- Institute of Polymer Composites
- Zhejiang University
- Hangzhou 310027
- China
| | - Xiaonan Li
- Laboratory of Polymer Materials and Engineering
- Ningbo Institute of Technology
- Zhejiang University
- Ningbo 315100
- China
| | - Mao Peng
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization
- Institute of Polymer Composites
- Zhejiang University
- Hangzhou 310027
- China
| | - Zhengping Fang
- Laboratory of Polymer Materials and Engineering
- Ningbo Institute of Technology
- Zhejiang University
- Ningbo 315100
- China
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