Processing and properties of spray-applied, 100% solids polyurethane coatings from rapeseed oil polyols

Abstract

Rigid polyurethane (PU) coatings were obtained from rapeseed oil (RO), triethanolamine (TEA), diethanolamine, and glycerol polyols. The dynamic mechanical analysis of PU coatings showed that the β-transition process occurs at −60°C for these PU networks. At 20°C, the tensile storage modulus (E′) is higher for those PU networks that are characterized with higher cohesive energy density (CED). There is a good correlation between the theoretical molecular weights between two crosslinking points (M c) of the PU network and M c that has been calculated from E′ based on the ideal rubber theory. PU coatings from a RO/TEA polyol and polymeric 4,4′-methylene diphenyldiisocyanate (MDI) were sprayed using a Graco Reactor E-10 industrial spraying machine with a volume ratio of the components A:B = 1.0:1.0. Eco-friendly volatile organic compounds-free, 100% solids, fast-curing two pack (2 K) PU coating compositions were formulated. The kinetics of gel formation was studied for PU coatings from RO/TEA, chain extenders, and polymeric MDI under adiabatic conditions; the temperature range was from 10 to 50°C. It was found that gel formation occurs with activation energy (E a) 26.56–33.43 kJ/mol. When a PU coating is spray-applied on a substrate under nonadiabatic conditions, the gel formation time of the coating is not significantly influenced by the temperature of the components in the range 20–50°C.

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References

  1. 1.

    Chattopadhyay, DK, Raju, KVSN, “Structural engineering of polyurethane coatings for high performance applications.” Prog. Polym. Sci., 32 352–418 (2007)

    Article  Google Scholar 

  2. 2.

    Guan, SW, “100% Solids Polyurethane and Polyurea Coatings Technology.” Coat. World, 49–58 (2003). http://www.highbeam.com/publications/coatings-world-p3744

  3. 3.

    Guan, SW, “100% Solids Polyurethane and Polyurea Coatings Technology: Chemistry, Selection and Application”. Proceedings of the 2nd China International Corrosion Control Conference, Beijing, P.R. China, November 2002

  4. 4.

    Petrović, ZS, “Polyurethanes from Vegetable Oils.” Polym. Rev., 48 (1) 109–155 (2008)

    Article  Google Scholar 

  5. 5.

    Hill, K, “Fats and Oils as Oleochemical Raw Materials.” Pure Appl. Chem., 72 (7) 1255–1264 (2000)

    Article  Google Scholar 

  6. 6.

    Ionescu, M, Chemistry and Technology of Polyols for Polyurethanes. Smithers Rapra Technology, Shrewsbory, 2005

    Google Scholar 

  7. 7.

    Zlatanic’, A, Lava, C, Zhang, W, Petrović, ZS, “Effect of Structure on Properties of Polyols and Polyurethanes Based on Different Vegetable Oils.” J. Polym. Sci. Pol. Phys., 42 (5) 809–816 (2004)

    Article  Google Scholar 

  8. 8.

    Guo, A, Demydov, D, Zhang, W, Petrovic′, ZS, “Polyols and Polyurethanes from Hydroformylation of Soybean Oil.” J. Polym. Environ., 10 (1–2) 49–52 (2002)

    Article  Google Scholar 

  9. 9.

    Zlatanic’, A, Petrovic’, ZS, Dušek, K, “Structure and Properties of Triolein-Based Polyurethane Networks.” Biomacromolecules, 3 1048–1056 (2002)

    Article  Google Scholar 

  10. 10.

    Stirna, U, Fridrihsone, A, Lazdina, B, Misane, M, Vilsone, D, “Biobased Polyurethanes from Rapeseed Oil Polyols: Structure, Mechanical and Thermal Properties.” J. Polym. Environ. (2012). doi:10.1007/s10924-012-0560-0

    Google Scholar 

  11. 11.

    Sustainably successful polyols for high-performance coatings on the basis of castor oil. The Polyurethane Newsletter, 2009, p. 226.

  12. 12.

    Thakur, S, Karak, N, “Castor Oil Based Hyperbranched Polyurethanes as Advanced Surface Coating Materials.” Prog. Org. Coat., 76 (1) 157–164 (2013)

    Article  Google Scholar 

  13. 13.

    Chang, CW, Lu, KT, “Natural Castor Oil Based 2-Package Waterborne Polyurethane Wood Coatings.” Prog. Org. Coat., 75 (4) 435–443 (2012)

    Article  Google Scholar 

  14. 14.

    Stirna, U, Lazdina, B, Vilsone, Dz, Lopez, M, Vargas-Garcia, C, Suarez-Estrella, F, Moreno, J, “Structure and Properties of the Polyurethane and Polyurethane Foam Synthesized from Castor Oil Polyols.” J. Cell. Plast., 48 (6) 476–489 (2012)

    Article  Google Scholar 

  15. 15.

    Alam, M, Alandis, NM, “Microwawe Assisted Synthesis and Characterization of Olive Oil Based Polyetheramide as Anticorrosive Polymeric Coating.” Prog. Org. Coat., 75 (4) 527–536 (2012)

    Article  Google Scholar 

  16. 16.

    Kurth, TM, Kurth, RA, “Vegetable Oil-Based Coating and Method for Application.” US Patent 6979477, 2001

  17. 17.

    Dutta, S, Karak, N, “Synthesis, Characterization of Poly(urethane amide) Resins from Nahar Seed Oil for Surface Coating Application.” Prog. Org. Coat., 53 (2) 147–152 (2005)

    Article  Google Scholar 

  18. 18.

    Kapps, M, Buschkamp, S, The Production of Rigid Polyurethane Foam. Business Development Insulation, Leverkusen, 2004

    Google Scholar 

  19. 19.

    Güner, FS, Yağcı, Y, Erciyes, AT, “Polymers from Triglyceride Oils.” Prog. Polym. Sci., 31 (7) 633–670 (2006)

    Article  Google Scholar 

  20. 20.

    Dušek, K, Duškova-Smerčkova, M, Fedderly, JJ, Lee, GF, Lee, JD, Hartmann, B, “Polyurethane Networks with Controlled Architecture of Dangling Chains.” Macromol. Chem. Phys., 203 (13) 1936–1948 (2002)

    Article  Google Scholar 

  21. 21.

    Carme Coll Ferrer, M, Babb, D, Ryan, AJ, “Characterization of Polyurethanes Network Based on Vegetable Derived Polyol.” Polymer, 49 (15) 3279–3287 (2008)

    Article  Google Scholar 

  22. 22.

    Fedors, RF, “A Method for Estimating Both the Solubility Parameters and Molar Volumes of Liquids.” Polym. Eng. Sci., 14 (6) 147–154 (1974)

    Article  Google Scholar 

  23. 23.

    Schlesing, W, Buhk, M, Osterhold, M, “Dynamic Mechanical Analysis in Coating Industry.” Prog. Org. Coat., 49 (3) 197–208 (2004)

    Article  Google Scholar 

  24. 24.

    Javni, I, Zhang, W, Petrović, ZS, “Effect of Different Isocyanates on the Properties of Soy-Based Polyurethanes.” J. Appl. Polym. Sci., 88 (13) 2912–2916 (2003)

    Article  Google Scholar 

  25. 25.

    Fridrihsone, A, Stirna, U, Lazdina, B, Misane, M, Vilsone, D, “Characterization of Polyurethanes Networks Structure and Properties Based on Rapeseed oil Derived Polyol.” Eur. Polym. J. 2013. doi:10.1016/j.eurpolym.2013.03.012

  26. 26.

    De La Caba, K, Guerrero, P, Eceiza, A, Mondragon, I, “Kinetic and Rheological Studies of Two Unsaturated Polyester Resins Cured at Different Temperatures.” Eur. Polym. J., 33 (1) 19–23 (1997)

    Article  Google Scholar 

  27. 27.

    Macosko, CW, Miller, DR, “A New Derivation of Average Molecular Weights of Nonlinear Polymers.” Macromolecules, 9 (2) 199–206 (1976)

    Article  Google Scholar 

  28. 28.

    Schave, JEK, “A Description of Chemical and Diffusion Control in Isothermal Kinetics.” Thermochim. Acta, 388 299–312 (2002)

    Article  Google Scholar 

  29. 29.

    Broyer, E, Macosko, CW, “Curing and Heat Transfer in Polyurethane Reaction Molding.” Polym. Eng. Sci., 18 (5) 382–386 (1978)

    Article  Google Scholar 

Download references

Acknowledgments

The work was financed by the European Regional Development Fund Contract No. 2010/0214/2DP/2.1.1.1.0/10/APIA/VIAA/054.

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Correspondence to A. Fridrihsone-Girone.

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Stirna, U., Fridrihsone-Girone, A., Yakushin, V. et al. Processing and properties of spray-applied, 100% solids polyurethane coatings from rapeseed oil polyols. J Coat Technol Res 11, 409–420 (2014). https://doi.org/10.1007/s11998-013-9545-8

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Keywords

  • Rapeseed oil
  • Polyurethane
  • VOC-free spray-applied coating
  • Curing process
  • Mechanical properties
  • 100% solids