Preparation and Properties of Eco-friendly Waterborne Polyurethane-urea Primer for Thermoplastic Polypropylene Applied to Automobile Interiors

자동차 내장재용 열가소성 폴리프로필렌에 적용되는 선처리제용 친환경 수분산 폴리우레탄-우레아의 제조 및 성질

  • Shin, Jong Sub (Korea Institute of Footwear & Leather Technology) ;
  • Park, Jin Myeong (Department of Organic Material Science and Engineering, Pusan National University) ;
  • Lee, Young Hee (Department of Organic Material Science and Engineering, Pusan National University) ;
  • Kim, Han Do (Department of Organic Material Science and Engineering, Pusan National University)
  • 신종섭 (한국신발피혁연구원) ;
  • 박진명 (부산대학교 유기소재시스템공학과) ;
  • 이영희 (부산대학교 유기소재시스템공학과) ;
  • 김한도 (부산대학교 유기소재시스템공학과)
  • Received : 2014.07.07
  • Accepted : 2014.09.19
  • Published : 2014.09.30


The significance of thermoplastic polyolefin polypropylene (PP) lies in its potential to replace polyvinyl chloride (PVC), the most widely used material for automobile interiors (door trim, dash board), which discharges harmful compounds in certain conditions. Another benefit of PP (0.855 amorphous - 0.946 crystalline $g/cm^3$) is its low density compared to that of PVC ($1.1-1.45g/cm^3$), which reduces vehicle weight. Market demand for eco-friendly water-based adhesive/coating material is rising significantly as a substitute for solvent-based adhesive/coating material which emits VOC and causes harmful working conditions. Under such context, in this study, a series of eco-friendly waterborne polyurethane-urea primer (a paint product that allows finishing paint to adhere much better than if it were used alone) for hydrophobic PP were prepared from different mix of DMPA content, NCO/OH molar ratio, various wt% of silicone diol and various soft segment content, among which DMPA of 21 mole %, NCO/OH molar ratio of 1.2, modified silicone diol of 5 wt% and soft segment content of 73 wt% led to good adhesion strength. Additionally, the incorporation of optimum content of additives (0.5 wt% dispersing agent, 0.5 wt% levelling agent, 1.5 wt% antifoaming agent, 3.0 wt% matting agent) into the optimum waterborne polyurethane-urea also enabled good stability, levelling, antifoaming and non-glossy.


Supported by : 부산대학교


  1. Mann, D., Automotive Plastics & Composites, 2nd ed., Elsevier Advanced Technology, UK, 1999, pp. 28-30.
  2. Kim, J. H., Song, Y, W., Lee, J, Y., and Kim, S, W., "Evaluation of TPO and Recycled PVC for Instrument Panel in Automotive," Transact. KSAE., 9, 27-31 (2001).
  3. Lee, H. P., and Kim, Y. T., "A Study on the Fire Risk of Car Interior Materials," J. Korean Ins. Fire Sci. Eng., 24, 82-88 (2010).
  4. Kausar, A., Zulfiqar, S., and Sarwar, M. I., "High Performance Segmented Polyurethanes Derived from a New Aromatic Diisocyanate and Polyol," Polym. Degradat. Stability, 98, 368-376 (2013)
  5. Oliveira, M. C. L., Antunes, R. A., and Costa, I., "Effect of the NCO/OH Molar Ratio on the Physical Aging and on the Electrochemical Behavior of Polyurethane-Urea Hybrid Coatings," Int. J. Electrochem. Sci., 8, 4679-4689 (2013).
  6. Mishra, A. K., Narayan, R., Raju, K. V. S. N., and Aminabhavi, T. M., "Hyperbranched Polyurethane(HBPU)-urea and HBPUimide Coatings: Effect of Chain Extender and NCO/OH Ratio on their Properties," Prog. Org. Coat., 74, 134-141 (2012)
  7. Rahman, M. M., Lee, I, W., Chun, H, H., Kim, H, D., and Park, H., "Properties of Waterborne Polyurethane-Fluorinated Marine Coatings: The Effect of Different Types of Diisocyanates and Tetrafluorobutanediol Chain Extender Content," J. Appl. Polym. Sci., 131, 39905 (2014).
  8. Jeong, B. Y., Cheon, J. M., Chun, J. H., Mok, D. Y., and Lee, H. M., "Synthesis and Characterization of Polyurethane Elastomer," J. Adhesion Interface, 10, 4 (2009).
  9. Shin, M. S., Lee, Y. H., Rahman, M. M., and Kim, H. D., "Synthesis and Properties of Waterborne Fluorinated Polyurethane-acrylate Using a Solvent-/Emulsifier-free Method," Polymer, 54, 4879-4882 (2013).
  10. Chattopadhyayl, D. K., and Raju, K. V. S. N., "Structural Engineering of Polyurethane Coatings for High Performance Applications," Prog. Polym. Sci., 32, 352-418 (2007).
  11. Ding, Y. S., Yang, C. Z., and Cooper, S. L., "Synthesis and Characterization of Sulphonated Polyurethane Ionomers Based on Toluene Diisocyanate," Polymer, 30, 1204-1212 (1989).
  12. Kwak, Y. S., Kim, E. Y., and Kim, H. D., "Preparation and Properties of Waterborne Poly(urethane urea)s for Adhesives: The Effect of the 2,2-Bis(hydroxylmethyl) Propionic Acid Content on the Properties;" J. Appl. Polym. Sci., 94, 1743-1751 (2004).
  13. Rahman, M. M., and Kim, H. D., "Synthesis and Charcterization of Waterborne Polyurethane Adhesive Containing Different Amount of Ionic Groups (1)," J. Appl. Polym. Sci., 102, 5684-5691 (2006).
  14. Lim, H. J., and Park, I. J., "Synthesis of Fluorine-Containing Water-Soluble Polyurethane with Environmental Affinity," Clean Technol., 5(2), 37-44 (1999).
  15. Kim, S. K., Kim, K. S., Kim, T. K., and Oh, G. J., "Synthesis and Physical Properties of Waterborne Polyurethane Microgels," Elastomer, 35, 281-287 (2000).
  16. Jeong, B. Y., Cheon, J. M., Yoo, C. S., and Chun, J. H., "Synthesis and Application of Slovent-free Waterborne Polyurethane (SWPU) Using Teramethylxylene Diisocyanate (TMXDI)," J. Adhesion Interface, 8, 4 (2007).
  17. Lee, Y. H., Kim, E. J., and Kim, H. D., "Synthesis and properties of Waterborne Poly(urethane urea)s Containing Polydimethylsiloxane," J. Appl. Polym. Sci., 120, 212-219 (2011).
  18. Kozakiewicz, J., Janik, H., Kwiatkowski, R., and Wlochowicz, A., "Investigations of Morphology of Moisture-cured Silicone-Urethanes," Polym. Adv. Technol., 11, 82-91 (2000).<82::AID-PAT940>3.0.CO;2-#
  19. Yang, J., Zhou, S., You, B., and Limin Wu., "Preparation and Surface Properties of Silicone-Modified Polyester-Based Polyurethane Coats," JCT Res., 3, 333-339 (2006).
  20. Ioan, S., Grigorescu, G., and Stanciu, A., "Effect of Segmented Poly(ester-siloxane)urethanes Compositional Parameters on Differential Scanning Calorimetry and Dynamic-mechanical Measurements," Eur. Polym. J., 38, 2295-2303 (2002).
  21. Zhoua, Y., Zhonga, A., Hea, M., Cuib, Y., and Zhangb, T., "Preparation and Characterization of Novel PUT/SiO2 Nanocomposite Material," Acta Physico-Chimica Sinica, 23, 223- 228 (2007).
  22. Akram, N., Gurney, R. S., Zuber, M., Ishaq, M., and Keddie, J. L., "Influence of Polyol Molecular Weight and Type on the Tack and Peel Properties of Waterborne Polyurethane Pressure-Sensitive Adhesives," Macromol. React. Eng., 7(10), 493-503 (2013).
  23. Ahn, T. O., Hong, I, P., Kim, J. H., and Jeong, H, M., "Properties of Polyurethane Elastmoer. 2. The Effect of Hard Segment Structure," Polymer (Korea), 14, 6 (1990).

Cited by

  1. Study of the Olefin Adhesion Layer Produced by Melt-blowing LDPE vol.53, pp.2, 2016,