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Li F, Weng K, Nakamura A, Ono K, Tanaka T, Noda D, Tanaka M, Irifune S, Sato H. Preparation of Waterborne Silicone-Modified Polyurethane Nanofibers and the Effect of Crosslinking Agents on Physical Properties. Polymers (Basel) 2024; 16:1500. [PMID: 38891447 PMCID: PMC11174862 DOI: 10.3390/polym16111500] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2024] [Revised: 05/17/2024] [Accepted: 05/21/2024] [Indexed: 06/21/2024] Open
Abstract
Silicone-modified polyurethane (PUSX) refers to the introduction of a silicone short chain into the polyurethane chain to make it have the dual properties of silicone and polyurethane (PU). It can be used in many fields, such as coatings, films, molding products, adhesives, and so on. The use of organic solvents to achieve the fiberization of silicone-modified polyurethane has been reported. However, it is challenging to achieve the fiberization of silicone-modified polyurethane based on an environmentally friendly water solvent. Herein, we report a simple and powerful strategy to fabricate environmentally friendly waterborne silicone-modified polyurethane nanofiber membranes through the addition of polyethylene glycol (PEG) with different molecular weights using electrospinning technology and in situ doping with three crosslinking agents with different functional groups (a polyoxazoline crosslinking agent, a polycarbodiimide crosslinking agent, and a polyisocyanate crosslinking agent) combined with various heating treatment conditions. The influence of PEG molecular weight on fiber formation was explored. The morphology, structure, water resistance, and mechanical properties were analyzed regarding the effect of the introduction of silicone into PU. The effects of the type and content of crosslinking agent on the morphology and physical properties of PUSX nanofiber membranes are discussed. These results show that the introduction of silicone can improve the water resistance and high temperature resistance of waterborne PU, and the addition of a crosslinking agent can further improve the water resistance of the sample, so that the sample can maintain good morphology after immersion. Crosslinking agents with different functional groups had different effects on the mechanical properties of PUSX nanofiber membranes due to different reactions. Among them, the oxazoline crosslinking agent had a significant effect on improving tensile strength, while the isocyanate crosslinking agent had a significant effect on improving the elongation at break. The PUSX nanofiber membrane prepared in this work did not use organic solvents that were harmful to humans and the environment, and it can be used in outdoor textiles, oil-water separation, medical health, and other fields.
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Affiliation(s)
- Fang Li
- Interdisciplinary Graduate School of Science and Technology, Shinshu University, 3-15-1, Tokida, Ueda-Shi 386-8567, Nagano, Japan; (F.L.); (K.W.)
| | - Kai Weng
- Interdisciplinary Graduate School of Science and Technology, Shinshu University, 3-15-1, Tokida, Ueda-Shi 386-8567, Nagano, Japan; (F.L.); (K.W.)
| | - Asumi Nakamura
- Interdisciplinary Graduate School of Science and Technology, Shinshu University, 3-15-1, Tokida, Ueda-Shi 386-8567, Nagano, Japan; (F.L.); (K.W.)
| | - Keishiro Ono
- Interdisciplinary Graduate School of Science and Technology, Shinshu University, 3-15-1, Tokida, Ueda-Shi 386-8567, Nagano, Japan; (F.L.); (K.W.)
| | - Toshihisa Tanaka
- Interdisciplinary Graduate School of Science and Technology, Shinshu University, 3-15-1, Tokida, Ueda-Shi 386-8567, Nagano, Japan; (F.L.); (K.W.)
| | - Daisuke Noda
- Silicone-Electronics Materials Research Center, Shin-Etsu Chemical Co., Ltd., 1-10, Hitomi, Matsuida-Machi, Annaka-Shi 379-0224, Gunma, Japan
| | - Masaki Tanaka
- Silicone-Electronics Materials Research Center, Shin-Etsu Chemical Co., Ltd., 1-10, Hitomi, Matsuida-Machi, Annaka-Shi 379-0224, Gunma, Japan
| | - Shinji Irifune
- Silicone-Electronics Materials Research Center, Shin-Etsu Chemical Co., Ltd., 1-10, Hitomi, Matsuida-Machi, Annaka-Shi 379-0224, Gunma, Japan
| | - Hiromasa Sato
- Dainichiseika Color & Chemicals Mfg. Co., Ltd., 2087-4, Ohta, Sakura-Shi 285-0808, Chiba, Japan
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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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Cui X, Zhang C, Araby S, Cai R, Kalimuldina G, Yang Z, Meng Q. Multifunctional, flexible and mechanically resilient porous polyurea/graphene composite film. J IND ENG CHEM 2022. [DOI: 10.1016/j.jiec.2021.10.017] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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Pang Q, Kang F, Deng J, Lei L, Lu J, Shao S. Flame retardancy effects between expandable graphite and halloysite nanotubes in silicone rubber foam. RSC Adv 2021; 11:13821-13831. [PMID: 35423935 PMCID: PMC8697518 DOI: 10.1039/d1ra01409a] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2021] [Accepted: 04/07/2021] [Indexed: 12/19/2022] Open
Abstract
The effect of expandable graphite (EG) and modified halloysite nanotubes (HNTs) on the flame retardant properties of silicone rubber foam (SiF) was studied in this paper. Modified HNTs were obtained by surface modification of the silane-coupling agent A-171. The flame retardancy of SiF was studied by limiting oxygen index (LOI), vertical combustion and cone calorimeter tests. The mechanical properties of SiF were analyzed by a universal mechanical testing machine. The LOI results showed that EG/HNTS@A-171 could enhance the LOI of SiF. The cone calorimeter test results showed that EG/HNTS@A-171 effectively reduced the peak heat release rate, the total heat release rate, the smoke production rate, the total smoke production rate, the CO production rate and the CO2 production rate and increased the carbon residue rate. TGA shows that main chain pyrolysis temperature of the SiF is delayed by 123 °C. The mechanical properties test results showed that EG/HNTS@A-171 improved the tensile strength of SiF. These results indicated that EG/HNTS@A-171 can significantly improve the flame retardant performance of SiF.
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Affiliation(s)
- Qingtao Pang
- College of Safety Science and Engineering, Xi'an University of Science and Technology Xi'an 710054 P. R. China
- Shaanxi Key Laboratory of Prevention and Control of Coal Fire, Xi'an University of Science and Technology Xi'an 710054 P. R. China
| | - Furu Kang
- College of Safety Science and Engineering, Xi'an University of Science and Technology Xi'an 710054 P. R. China
- Shaanxi Key Laboratory of Prevention and Control of Coal Fire, Xi'an University of Science and Technology Xi'an 710054 P. R. China
| | - Jun Deng
- College of Safety Science and Engineering, Xi'an University of Science and Technology Xi'an 710054 P. R. China
- Shaanxi Key Laboratory of Prevention and Control of Coal Fire, Xi'an University of Science and Technology Xi'an 710054 P. R. China
| | - Lei Lei
- College of Materials Science and Engineering, Xi'an University of Science and Technology Xi'an 710054 P. R. China
| | - Jie Lu
- College of Materials Science and Engineering, Xi'an University of Science and Technology Xi'an 710054 P. R. China
| | - Shuiyuan Shao
- College of Materials Science and Engineering, Xi'an University of Science and Technology Xi'an 710054 P. R. China
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