Heat-Resistant Coatings on the Basis of Phenol-Formaldehyde Compositions

Abstract:

The determination of the effect of composition formula and hardening conditions on technological characteristics of developed thermostable enamels on the basis of phenol-formaldehyde resins modified by epoxy resin and polyvinylpyrrolidone (PVP) was the task of this work. The mechanism of resins modification and hardening has been determined. The developed modified composition is characterized by high index of thixotropy in contrast to phenol-formaldehyde resin (PFR) containing urotropine. It was determined that novolac phenol-formaldehyde resin modification by PVP and ED-20 results in a significant improvement of thixotropic characteristics and enamel technological effectiveness and in physico-mechanical properties and thermostability improvement as well.

• Periodical: Materials Science Forum (Volume 818)
• Pages: 105-108
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.818.105
• Online since: May 2015
• Authors: Volodymyr Krasinskyi*, Emil Spišák, Ivan Gajdoš, Tomasz Garbacz
• Keywords: Epoxy Resin, Heat-Resistant Coatings, Phenol-Formaldehyde Resin, Polyvinylpyrrolidone, Thermal Stability, Thixotropic Characteristics

References

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DOI: 10.1007/s11003-011-9339-z

[2] O. Suberlyak, V. Krasinskiy, J. Sikora, A. Krzyzak, Ammonia-free, low-toxic press-materials with improved electroinsulating properties based on modified novolak phenol-formaldehyde resin, Chemis. Chem. Technol. 6 (2012) 199-202.

DOI: 10.23939/chcht06.02.199

[3] O.V. Suberlyak, J.M. Shapoval, V.V. Krasinskyi, Ukraine Patent 82171, (2008).