Synthesis and Properties of Eco-friendly Polyurethane Adhesive without Solvent : Effect of DPE-41, TDI, Initiator and Plasticizer Content

용제를 사용하지 않는 친환경 폴리우레탄 접착제의 합성 및 물성 : DPE-41, TDI, 개시제 및 가소제량의 영향

  • Ryu, Ki-Jung (Dept. of Polymer Engineering, Pukyong National University) ;
  • Park, Chan-Young (Dept. of Polymer Engineering, Pukyong National University)
  • 류기정 (부경대학교 공과대학 고분자공학과) ;
  • 박찬영 (부경대학교 공과대학 고분자공학과)
  • Received : 2014.09.29
  • Accepted : 2014.11.13
  • Published : 2014.11.28


In this experiment no solvent based polyurethane(PU) adhesives were prepared with the polyol, isocyanate, dioctyl phthalate(DOP), 2-hydroxyethylacrylate(2-HEA) and other acrylate monomers. The softenening point of the PU adhesives measured by Ring & Ball method were examined in the present study. And adhesion strength and mechanical properties such as tensile strength and 100% modulus of the PU adhesives were evaluated by Universal Test Machine. The experimental results showed that increase of both DPE-41, benzoylperoxide(BPO) and toluene diisocyanate(TDI) increased softenening point, adhesion strength, tensile strength and 100% modulus. However as DOP content increased sofenening point, adhesion strength decreased and tensile strength, 100% modulus also decreased.


Supported by : 산업통상자원부


  1. Meier J. F., 1996, Fundamentals of Plastics and Elastomers, C. A. Harper(Ed.), Handbook of Plastics, Elastomers, and Composites, 3rd ed., McGraw Hill, New York, 268-284.
  2. Pocius A. V., 1997, Adhesion and Adhesives Technology, Hanser Publishers, New York, 145-179.
  3. Skiest I., Miron J., 1990, Handbook of Adhesives, 3rd ed., Van Nostrand Reinhold Publishing, New York, 254-283.
  4. Lee S. K., Kim B. K., 2009, High solid and high stability waterborne polyurethanes via ionic groups in soft segments and chain termini, Journal of Colloid and Interface Science, 336, 208-214.
  5. Son S. H., Lee H. J., Kim J. H., 1998, Effects of carboxyl groups dissociation and dielectric constant on particle size of polyurethane dispersions, Colloids and Surfaces A: Physicochemical and Engineering Aspects, 133, 295-301.
  6. Deepak M., Vijay K. S., 2010, Eco-economical polyurethane wood adhesives from cellulosic waste: Synthesis, characterization and adhesion study, International Journal of Adhesion and Adhesives, 30(1), 47-54.
  7. Pizzi A., 2006, Recent developments in eco-efficient biobased adhesives for wood bonding: opportunities and issues, Journal of Adhesion Science and Technology, 20, 829-846.
  8. Sandip D.D., Jigar V.P., Vijay K.S., 2003, Polyurethane adhesive system from biomaterial-based polyol for bonding wood, International Journal of Adhesion and Adhesives, 23(5), 393-399.
  9. Dakai R., Charles E., 2013, Structure property behavior of moisture-cure polyurethane wood adhesives: Influence of hard segment content, International Journal of Adhesion and Adhesives, 45, 118-124.
  10. Tyczkowski J., Krawczyk-K. I., Kuberski S., Makowski P., 2010, Chemical nature of adhesion: Plasma modified styrene butadiene elastomer and polyurethane adhesive joints, European Polymer Journal, 46(4), 767-773.
  11. Yong H., Xinya Z., Xinfang Z., Hong H., Jie C., Huanqin C., 2012, Structural investigations of toluene diisocyanate (TDI) and trimethylolpropane (TMP)-based polyurethane prepolymer, Journal of Industrial and Engineering Chemistry, 18, 1620-1627.
  12. Essawy H. A., Moustafa A., Elsayed N. H., 2010, Enhancing the properties of urea formaldehyde wood adhesive system using different generations of core-shell modifiers based on hydroxyl-terminated dendritic poly(amidoamine)s, Journal of Applied Polymer Science, 115, 370-375.
  13. Saunders J. H., Frisch K. C., 1962, Polyurethanes: Chemistry and Technology: Part 1. Chemistry, Interscience Publishers, 368-396.
  14. Carmen P., Allen N. S., Salvador E. F., Teresa C., Fernando C., 2002, Chemiluminescence and fluorescence for monitoring the photooxidation of an UV-cured aliphatic polyurethane-acrylate based adhesive, Polymer Degradation and Stability, 77, 523-529.
  15. Clough S. B., Schneider N. S., 1968, Structural studies on urethane elastomers, Journal of Mcromolecular Science, Part B: Physics, 2, 553-566.
  16. Gauthier M. M., 1990, Engineered Materials Handbook Vol. 3: Adhesives and Sealants., American Society for Materials, 183-205.
  17. Krech R., Mueller J., Pohlmann N., Sellig P., Steinberger R., 2003, Thermoplastic polyurethane, US Patent 6,538,075 B1.
  18. Alireza K., Bernard R., 2012, Nano-aluminum oxide as a reinforcing material for thermoplastic adhesives, Journal of Industrial and Engineering Chemistry, 18, 1076-1081.
  19. Kirchmeyer S., Muller H. P., Ullrich M., Liesenfelder U., 2002, Thermoplastic polyurethane elastomers, US Patent 6,417,312 B1.
  20. Tsai H. B., Lee D. K., Tsai R. S., Chen P., Yang Y. F., Y. F. Lin, Wang H. H., 2007, Synthesis and properties of transparent thermoplastic segmented polyurethanes, Advances in Polymer Technology, 26, 33-40.
  21. Yamasaki S., Nishiguchi D., Kojio K., Furukawa M., 2007, Effects of polymerization method on structure and properties of thermoplastic polyurethanes, Journal of Polymer Science: Part B: Polymer Physics, 45, 800-814.
  22. Jeon H. T., Jang M. K., Kim B. K., Kim K. H., 2007, Synthesis and characterizations of waterborne polyurethane -silica hybrids using sol gel process, Colloids and Surfaces A: Physicochemical and Engineering Aspects, 302, 559-567.