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http://dx.doi.org/10.14478/ace.2020.1072

Synthesis of Polyurethane Foam at Room Temperature by Controlling the Gelling Reaction Time  

Lee, Hojoon (Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST))
Oh, Chungik (Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST))
Liow, Chi Hao (Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST))
Kim, Soyeon (Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST))
Han, Youngjoon (Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST))
Oh, Min-Seok (Poongsan R&D Institute)
Joo, Hyeong-Uk (Poongsan R&D Institute)
Chang, Soo-Ho (Poongsan R&D Institute)
Hong, Seungbum (Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST))
Publication Information
Applied Chemistry for Engineering / v.31, no.6, 2020 , pp. 630-634 More about this Journal
Abstract
We developed a processing recipe to synthesize flexible polyurethane foam with a pore size of 335 ± 107 ㎛. The gelling reaction time was varied from 0 to 30 minutes and the physical properties of the foam were evaluated. The gelling reaction where the polypropylene glycol and tolylene 2,4-diisocyanate (TDI) were reacted to form urethane prepolymer, proceeded until a chemical blowing agent, deionized water, was introduced. Fourier transform infrared (FT-IR) spectra showed that the composition of the foam did not change but the foam height reached a peak value when the gelling reaction time was 10 minutes. We found that increasing the gelling time lessened the coalescence and helped the formation of cells. Lastly, the repeatability of polyurethane foam was confirmed by one-way analysis of variance (ANOVA) by synthesizing ten identical polyurethane foams under the same experimental conditions, including the gelling reaction time. Overall, the new time parameter in-between the gelling and blowing reactions will give extra stability in manufacturing identical polyurethane foams and can be applied to various polyurethane foam processes.
Keywords
Polyurethane foam; Prepolymer method; Gelling time;
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Times Cited By KSCI : 4  (Citation Analysis)
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1 H. Choi, S. polyol for polyurethane and foam, Polym. Sci. Technol., 10, 621-628 (1999).
2 H. S. Kang and S. B. Kim, Synthesis and characterization of polyurethane-silica composite foam, Appl. Chem. Eng., 31, 30-35 (2020).
3 J. O. Akindoyo, M. D. H. Beg, S. Ghazali, M.R. Islam, N. Jeyaratnam, and A. R. Yuvaraj, Polyurethane types, synthesis and applications - A review, RSC Adv., 6, 114453-114482 (2016).   DOI
4 J. Bchnlein-Mau and H. Krober, Technology of foamed propellants, Propellants Explos. Pyrotech., 34, 239-244 (2009).   DOI
5 W. Yang, J. Yang, Y. Zhao, and Y. Zhang, Preparation and structure study of water-blown polyurethane/RDX gun propellant foams, J. Energ. Mater., 36, 121-126 (2018).   DOI
6 J. Bohnlein-MauB, A. Eberhardt, and T. S. Fischer, Foamed propellants, Propellants Explos. Pyrotech., 27, 156-160 (2002).   DOI
7 S. Kang, I. Cho, and S. Kim, Effect of isocyanate index on the physical properties of rigid polyurethane foam under sea water, J. Korean Ind. Eng. Chem., 19, 427-431 (2008).
8 H. Dodiuk and S. H. Goodman, Handbook of Thermoset Plastics, Elsevier, Doi:10.1016/C2011-0-09694-1 (2013).
9 P. Krol, Synthesis methods, chemical structures and phase structures of linear polyurethanes. Properties and applications of linear polyurethanes in polyurethane elastomers, copolymers and ionomers, Prog. Mater. Sci., 52, 915-1015 (2007).   DOI
10 A. Asefnejad, M. T. Khorasani, A. Behnamghader, B. Farsadzadeh, and S. Bonakdar, Manufacturing of biodegradable polyurethane scaffolds based on polycaprolactone using a phase separation method: physical properties and in vitro assay, Int. J. Nanomedicine, 6, 2375-2384 (2011).   DOI
11 M. Barrere and K. Landfester, High molecular weight polyurethane and polymer hybrid particles in aqueous miniemulsion, Macromolecules, 36, 5119-5125 (2003).   DOI
12 S. M. Kim, S. H. Kim, E. J. Lee, H. J. Park, and K. Y. Lee, Curing kinetics of polyurethane elastomers depending on the amount of curing agent and temperatures by real time FTIR spectroscopy, Polym., 41, 610-618 (2017).   DOI
13 O. Bayer, Das Di-isocyanat-polyadditionsverfahren (polyurethane), Angew. Chemie, 59, 257-272 (1947).   DOI
14 R. B. Seymour and G. B. Kauffman, Products of chemistry - polyurethanes: A class of modern versatile materials, J. Chem. Educ., 69, 909-910 (1992).   DOI
15 X. D. Zhang, C. W. Macosko, H. T. Davis, A. D. Nikolov, and D. T. Wasan, Role of silicone surfactant in flexible polyurethane foam, J. Colloid Interface Sci., 215, 270-279 (1999).   DOI
16 T. K. Kim, Understanding one-way anova using conceptual figureures, Korean J. Anesthesiol., 70, 22-26, Doi:10.4097/kjae.2017.70.1.22g (2017).   DOI