Skip to main content
Log in

Applying the Protective Role of Condensed Tannins to Acrylic-based Surface Coatings Exposed to Accelerated Weathering

  • Original Paper
  • Published:
Journal of Polymers and the Environment Aims and scope Submit manuscript

Abstract

Condensed tannins, extractable from tree bark have been assessed as functional additives to provide a protective role to acrylic-based coating resins. In addition to retaining high antioxidant capacity, the UV absorption properties of native and chemically modified tannins were found to be variously impacted by pH and degree of esterification or etherification. When added to acrylic-based coatings, these tannins were found to contribute colour to a white-base, but only small perceptive differences were found for clear coated wood using typical additive loadings of 0.1–0.4%. Integration of tannins in native or modified form to do not inhibit the cure of acrylic coatings or found to leach from cured coating films. Accelerated weathering was used to evaluate the photo-stability of tannin-modified acrylic and styrene-acrylic coatings. Native and modified tannins with maleate or methylcarboxylate groups retaining high antioxidant activity were associated with significantly greater coating longevity and performance than use of a synthetic photostabiliser. Moreover, esterified condensed tannins with a high degree of substitution also outperformed synthetic additives indicating the inherent UV absorption potential of these materials also contributed this efficacy within the acrylic and styrene-acrylic coating systems.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Fig. 1
Fig. 2
Fig. 3
Fig. 4
Fig. 5
Fig. 6
Fig. 7
Fig. 8
Fig. 9

Similar content being viewed by others

References

  1. Mash A (2015) Sustainability in the Coatings Industry. PCI Magazine

  2. Lligadas G et al (2013) Renewable polymeric materials from vegetable oils: a perspective. Mater Today 16(9):337–343

    Article  CAS  Google Scholar 

  3. Tullo AH (2010) Paints from Plants: with biobased-coatings raw materials, companies get more than just independence from petroleum. Chem Eng News 88(15):16–19

    Article  Google Scholar 

  4. Challener C (2010) The natural approach: Renewable resources in coatings. JCT CoatingsTech 7(9):42–47

    CAS  Google Scholar 

  5. Hayes DG, Dumont MJ (2016) Polymeric products derived from industrial oils for paints, coatings, and other applications, in Industrial Oil Crops. Elsevier Inc., Amsterdam, p. 43–73

    Google Scholar 

  6. Hare CH, Protective Coatings (1994) Fundamentals of chemistry and composition, edn. S.f.p. coatings. Technology Publishing Company, Pittsburgh

    Google Scholar 

  7. Grigsby WJ et al (2013) Esterification of condensed tannins and their impact on the properties of poly(lactic acid). Polymers 5(2):344–360

    Article  Google Scholar 

  8. Grigsby WJ et al (2014) Evaluating modified tannin esters as functional additives in polypropylene and biodegradable aliphatic polyester. Macromol Mater Eng 299(10):1251–1258

    Article  CAS  Google Scholar 

  9. Grigsby WJ, Bridson JH, Schrade C (2015) Modifying biodegradable plastics with additives based on condensed tannin esters. J Appl Polym Sci 132(11):41626

    Google Scholar 

  10. Hagerman AE (2002) Tannin Handbook ftp://217.148.94.129/: University of Miami, Ohio

  11. Heim KE, Tagliaferro AR, Bobilya DJ (2002) Flavonoid antioxidants: chemistry, metabolism and structure-activity relationships. J Nutr Biochem 13(10):572–584

    Article  CAS  Google Scholar 

  12. Hemingway RW, Karchesy JJ, Branham SJ (1989) The chemistry and significance of condensed tannins. Plenum Press, New York

    Book  Google Scholar 

  13. Grigsby WJ (2016) Simulating the protective role of bark proanthocyanidins in surface coatings: Unexpected beneficial photo-stabilisation of exposed timber. J Org Coat. doi:10.1016/j.porgcoat.2017.03.007

    Google Scholar 

  14. Luo C et al (2010) Synthesis, characterization, and thermal behaviors of tannin stearates prepared from quebracho and pine bark extracts. J Appl Polym Sci 117(1):352–360

    CAS  Google Scholar 

  15. Arbenz A, Avérous L (2015) Chemical modification of tannins to elaborate aromatic biobased macromolecular architectures. Green Chem 17(5):2626–2646

    Article  CAS  Google Scholar 

  16. Bridson JH (2007) Derivatisation of polyphenols, University of Waikato

  17. Bridson JH, Grigsby WJ, Main L (2013) Synthesis and characterization of flavonoid laurate esters by transesterification. J Appl Polym Sci 129(1):181–186

    Article  CAS  Google Scholar 

  18. Grigsby WJ, Kadla JF (2013) Evaluating poly(lactic acid) fiber reinforcement with modified tannins. Macromol Mater Eng 299:368–378

    Article  Google Scholar 

  19. Gülçin I (2012) Antioxidant activity of food constituents: an overview. Arch Toxicol 86(3):345–391

    Article  Google Scholar 

  20. Shukla S, Rai JSP (2014) Environmentally-friendly acrylates-based polymer latices. In Tiwari A, Syväjärvi M (eds) Advanced materials for agriculture, food and environmental safety. Wiley Blackwell, Hoboken pp 145–176

    Google Scholar 

  21. Monaghan G (2008) Environmentally advanced technology for semitransparent deck stains. JCT CoatingsTech 5(3):30–37

    CAS  Google Scholar 

  22. Tolvaj L, Mitsui K (2005) Light source dependence of the photodegradation of wood. J Wood Sci 51(5):468–473

    Article  CAS  Google Scholar 

Download references

Acknowledgements

This work was supported by Biopolymer Network Ltd, through funding by the New Zealand Ministry of Business, Innovation and Employment. The authors are thankful to the contributions of Jaime-Anne Elliot (UV spectra) for technical assistance.

Author information

Authors and Affiliations

Authors

Corresponding author

Correspondence to Warren Grigsby.

Electronic supplementary material

Below is the link to the electronic supplementary material.

Supplementary material 1 (DOCX 14811 KB)

Rights and permissions

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Grigsby, W., Steward, D. Applying the Protective Role of Condensed Tannins to Acrylic-based Surface Coatings Exposed to Accelerated Weathering. J Polym Environ 26, 895–905 (2018). https://doi.org/10.1007/s10924-017-0999-0

Download citation

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s10924-017-0999-0

Keywords

Navigation