Elastomers and Composites

  • 제58권4호
  • /
  • Pages.208-215
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  • 2023
  • /
  • 2092-9676(pISSN)
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  • 2288-7725(eISSN)
한국고무학회 (The Rubber Society of Korea)
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Effect of Blowing Agents on Physical Properties of Polyurethane-polydimethylsiloxane Hybrid Foam

  • Asell Kim (Department of Chemistry and Chemical Engineering, Education and Research Center for Smart Energy and Materials, Inha University) ;
  • Hyeonwoo Jeong (Department of Chemistry and Chemical Engineering, Education and Research Center for Smart Energy and Materials, Inha University) ;
  • Sang Eun Shim (Department of Chemistry and Chemical Engineering, Education and Research Center for Smart Energy and Materials, Inha University)
  • 투고 : 2023.12.15
  • 심사 : 2023.12.22
  • 발행 : 2023.12.31
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초록

In this study, the properties of polyurethane-polydimethylsiloxane (PU-PDMS) hybrid foams containing different types and contents of physical blowing agents (PBAs) were investigated. Two types of blowing agents, namely physical blowing agents and thermally expandable microspheres (TEM), were applied. The apparent density was measured using precisely cut foam samples, and the pore size was measured using image software. In addition, the microstructure of the foam was confirmed via scanning electron microscopy and transmission electron microscopy. The thermal conductivities related to the microstructures of the different foams were compared. When 0.5 phr of the hydrocarbon-based PBA was added, the apparent density and pore size of the foam were minimal; however, the pore size was larger than that of neat foam. In contrast, the addition of 3 phr of TEM effectively reduced both the apparent density and pore size of the PBAs. The increase in resin viscosity owing to TEM could enhance bubble production stability, leading to the formation of more uniform and smaller pores. These results indicate that TEM is a highly efficient PBA that can be employed to decrease the weight and pore size of PU-PDMS hybrid foams.

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과제정보

This work was supported by a grant (20010265) from Korea Ministry of Trade, Industry and Energy (MOTIE), Republic of Korea. This work was supported by the Technology Innovation Program (20010559) funded by the Ministry of Trade, Industry & Energy (MOTIE, Korea). This work was supported by the Technology Innovation Program (20009983) funded by the Min-istry of Trade, Industry and Energy (MOTIE, Korea). This work was supported by the National Research Foundation of Korea (NRF) grant funded by the Korea government (MSIT) (No. 2020R1A5A1019131).

참고문헌

  1. G. Oertel and L. Abele, "Polyurethane Handbook: Chemistry, Raw Materials, Processing, Application, Properties", ed. by G. Oertel, 2nd ed., Hanser, Munich, 1994. 
  2. S. T. McKenna and T. R. Hull, "The Fire Toxicity of Polyurethane Foams", J. Fire. Sci., 5, 1 (2016). 
  3. R. A. Orzel, S. E Womble, F. Ahmed, and H. S. Brasted, "Flexible Polyurethane Foam: A Literature Review of Thermal Decomposition Products and Toxicity", J. Am. Coll. Toxicol., 8, 1139 (1989). 
  4. F. Y. Hshieh, "Shielding Effects of Silica-ash Layer on the Combustion of Silicones and Their Possible Applications on the Fire Retardancy of Organic Polymers", Fire. Mater., 22, 69 (1998). 
  5. J. M. Weber, R. L. Sheridan, S. Fagan, C. M. Ryan, M. S. Pasternack, and R. G. Tompkins, "Incidence of Catheter-Associated Bloodstream Infection After Introduction of Minocycline and Rifampin Antimicrobial-Coated Catheters in a Pediatric Burn Population", J. Burn. Care. Res., 33, 539 (2012). 
  6. V. Hasse, L. Ederberg, I. Croiset, and J. Usinger, "Natural Foam Blowing Agents", 2nd ed., Federal Ministry for Economic Cooperation and Development (BMZ), Environment and Sustainable Use of Natural Resources Division, Eschborn, 2012. 
  7. D. Eaves, "Handbook of Polymer Foams", ed. by D. Eaves, Rapra Technology Ltd, Shrewsbury, 2004. 
  8. G. Wypych, "Handbook of Foaming and Blowing Agents", Elsevier, 2022. 
  9. R. Ciconkov, "Refrigerants: There is Still No Vision For Sustainable Solutions", Int. J. Refrig., 86, 441 (2018). 
  10. D. S. Morehouse and R. J. Tetreault, "Expansible Thermoplastic Polymer Particles Containing Volatile Fluid Foaming Agent and Method of Foaming the Same", U.S. Patent 3615972 (1971). 
  11. M. Jonsson, O. Nordin, A. L. Kron, and E. Malmstrom, "Influence of Crosslinking on the Characteristics of Thermally Expandable Microspheres Expanding at High Temperature", J. Appl. Polym. Sci., 118, 1219 (2010). 
  12. M. Jonsson, O. Nordin, and E. Malmstrom, "Increased Onset Temperature of Expansion in Thermally Expandable Microspheres Through Combination of Crosslinking Agents", J. Appl. Polym. Sci., 121, 369 (2011). 
  13. A. Mata, A. J. Fleischman, and S. Roy, "Characterization of Polydimethylsiloxane (PDMS) Properties for Biomedical Micro/nanosystems", Biomed. Microdevices, 7, 281 (2005). 
  14. D. David and M. S. Silverstein, "Porous Polyurethanes Synthesized within High Internal Phase Emulsions", J. Polym. Sci. A Polym. Chem., 47, 5806 (2009). 
  15. L. S. Meyer-Stork, H. Hocker, and H. Berndt, "Syntheses and Reactions of Urethanes of Cellobiose and Cellulose-containing Uretdione groups", J. Appl. Polym. Sci., 44, 1043 (1992). 
  16. H. J. Laas, R. Halpaap, F. Richter, and J. Koecher., "Preparation Isocyanates Containing Uretdione Groups", U.S. Patent 7151151B2 (2006).